MULTI F MAX HEAT PUMP SYSTEM ENGINEERING MANUAL. Multi-Zone Heat Pump Systems 1.5 to 4.5 Tons. Dual and Tri-Zone Multi F.

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1 MAX HEAT PUMP SYSTEM ENGINEERING MANUAL Multi-Zone Heat Pump Systems 1.5 to 4.5 Tons Dual and Tri-Zone Multi F Quad-Zone Multi F Eight-Zone Multi F MAX

2 PROPRIETARY DATA NOTICE This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc., and are disclosed by LG Electronics U.S.A., Inc., only in confidence. This document is for design purposes only. EM-MultiFODU For continual product development, LG reserves the right to change specifications without notice. LG Electronics Inc. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.

3 TABLE OF CONTENTS About LG Electronics, Inc... 4 Multi-Zone Systems... 4 Unit Nomenclature... 6 Outdoor Unit Overview... 7 Indoor Unit Overview... 8 Controls and Options Overview Multi F MAX Branch Distribution Unit Product Data Features and Benefits Mechanical Specifications General Data Dimensions Refrigerant Flow Diagram Wiring Diagram Y-Branch Accessory Branch Distribution Unit Orientation Multi F Outdoor Unit Product Data Product Features and Benefits Mechanical Specifications General Data Dimensions Rated Cooling Combination Tables Rated Heating Combination Tables Cooling Tables Heating Tables Electrical Data Acoustic Data Refrigerant Flow Diagrams Wiring Diagrams Operation Range Multi F MAX Outdoor Unit Product Data Product Features and Benefits Mechanical Specifications General Data Dimensions Rated Cooling Combination Tables Rated Heating Combination Tables Cooling Tables Heating Tables Electrical Data Acoustic Data Refrigerant Flow Diagrams Wiring Diagrams Operation Range Application Guidelines Equipment Selection Procedure Building Ventilation Design Guide Placement Considerations Refrigerant Piping Design & Layout Best Practices Design Guideline Summary Creating a Balanced / Quality Piping System Manual Layout Procedure LG Engineered Multi F MAX Y-Branch Kits Refrigerant Charge Selecting Field-Supplied Copper Tubing Refrigerant Piping System Layout Piping Insulation Condensate Drain Piping Cut Sheet Wiring Connections General Information Power Wiring and Communications Cable Details Indoor Unit Group Control Acronyms Introduction TABLE OF SYMBOLS DANGER This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Note: WARNING CAUTION This symbol indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. This symbol indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. This symbol Indicates situations that may result in equipment or property damage accidents only. This symbol indicates an action that should not be performed. INTRODUCTION 3

4 CONVERGENCE OF TECHNOLOGY, INNOVATION, FLEXIBILITY, & STYLE Multi F and Multi F MAX Indoor Unit Engineering Manual About LG Electronics, Inc. LG Electronics, Inc. is a global leader and technology innovator in consumer electronics, mobile communications, and home appliances, employing more than 213,000 people in more than 60 countries worldwide. LG Electronics, Inc. comprises five business units Home Entertainment, Mobile Communications, Air Conditioning, Business Solutions, and Home Appliance. LG is one of the world s leading producers of flat panel televisions, audio and video products, mobile handsets, air conditioners, and washing machines. LG s commercial air conditioning business unit was established in 1968 and has built its lineup of residential and commercial products to include VRF, Multi F, duct-free split systems, packaged terminal air conditioners (PTACs), and room air conditioners. In 2011, the air conditioning and energy solutions business unit grew to include LED lighting and solar products. For more information, visit Multi-Zone Systems LG HVAC systems offer a range of solutions that are cost efficient, quiet and attractive. Multi-zone systems are split into indoor and outdoor units, and provide a smart alternative to both central HVAC and window-mounted air conditioners. These inverter heat pump systems are available in a variety of configurations to suit different cooling and heating situations. Installation by a qualified HVAC contractor is safe and easy little to no duct work or sheet metal is required. Benefits of Multi F Systems Individual zone control Long refrigerant piping lengths High refrigerant piping elevation differences Maximum flexibility Operating ranges of 14 F to 118 F (DB) in cooling and -4 F to 64 F (WB) in heating Quiet and comfortable environment Reduced ductwork Multi F Systems LG s inverter heat pumps can support two, three, or four indoor units that are typically installed in separate rooms. Each indoor unit includes its own remote control, allowing the customer to set the temperature individually. Indoor units are available in several different configurations: Art Cool Mirror wall-mounted, Art Cool Gallery wall-mounted, standard wall-mounted, four-way ceiling cassettes, ceiling-concealed duct (high and low static), and vertical-horizontal air handling models. Multi F MAX systems, released in 2012, can operate up to eight indoor units through two-, three-, or four-port branch distribution units. Adaptable and Flexible Multi F outdoor units can be adapted to a wide range of building applications and sizes such as schools, hotels, hospitals, offices, and residences. The system components are lightweight and compact so they can be placed in buildings without expensive cranes, they easily fit into most service elevators, and they can be set in place with minimal structural reinforcements requirements. Multi F technology allows you to pipe farther by reaching areas of the building that would require the installation of a second system when using traditional direct-expansion cooling and heating equipment. Multi F provides the designer with uncompromised pipe system engineering flexibility long pipe runs and large elevation differences. Whether your building is a condominium, a hotel, a school, or an office complex, Multi F is best suited to reach the farthest corners and elevations. Smaller Chases and Plenums LG Multi F systems use refrigerant piping to move heat, resulting in smaller space requirements for piping as compared to chilled water or roof top systems. This helps reduce the overall construction and material cost of the building, and gives back leasable space. Flexible and logical placement of system components, reduced back-andforth pipe lengths, and fewer joints lowers installation costs and minimizes potential leaking. Quality Commitment LG is committed to the success of DFS projects. We provide technical support during installation and commissioning. LG offers a variety of classes designed for installers and on Multi F installation. Classes are conducted at LG s training centers and in field locations at various times throughout the year and upon special request. 4 INTRODUCTION

5 PRODUCT INTRODUCTION Unit Nomenclature on page 6 Outdoor Unit Overview on page 7 Indoor Unit Overview on page 8 Controls and Options Overview on page 9

6 UNIT NOMENCLATURE Multi-Zone Systems Indoor and Outdoor L M AN 12 7 HVT L = LG Type: M = Multi-Zone Multi F and Multi F MAX Indoor Unit Engineering Manual Component: AN: Art Cool Wall-Mounted Indoor Unit N: Standard Wall-Mounted Indoor Unit CN: Four-Way Ceiling-Cassette Indoor Unit DN: Ceiling-Concealed Duct (Low Static) Indoor Unit HN: Ceiling-Concealed Duct (High Static) Indoor Unit VN: Vertical-Horizontal Air Handling Indoor Unit U: Outdoor Unit Nominal (Nominal cooling capacity in Btu/h): 07 = 7, = 15, = 9, = 18, = 12, = 24,000 Generation Features: H = Heat Pump V = Inverter T = High Wall-Mounted Indoor Unit P = Art Cool Gallery Indoor Unit Branch Distribution P = Part (Accessory) Type: M = Multi-Zone 36 = 36, = 54,000 P M BD BD: Branch Distribution Unit Family Number of Port Connections (Maximum Number of Connectable Indoor ): 2, 3, 4 Generation: 0, 1 Voltage for all equipment is V, 60 Hz, 1-phase. All indoor units are compatible with wired controllers All outdoor units are LGAP control network compatible with PI-485 V-net Control Integration Board (PMNFP14A1, sold separately). Compatible single zone IDU nomenclature is listed in the Single Zone Wall-Mounted IDU Engineering Manual. 6 INTRODUCTION

7 OUTDOOR UNIT OVERVIEW Table 1: Summary Data Multi F / Multi F MAX Outdoor Outdoor Unit Type Model Number 1 (W x H x D) Dimensions (inches) Nominal Cooling Btu/h 2 Net Weight (lbs.) No. of Connectable Indoor 3 Pipe Connections (inches, O.D.) (Liquid, Vapor) Multi F Dual-Zone LMU18CHV 34-1/4 x 25 25/32 x 12-19/32 18, /4 x 2 Each, 3/8 x 2 Each Multi F Tri-Zone LMU24CHV 34-1/4 x 25 25/32 x 12-19/32 24, /4 x 3 Each, 3/8 x 3 Each Multi F Quad-Zone LMU36CHV 37-13/32 x 32-27/32 x 13 36, /4 x 4 Each, 3/8 x 4 Each Introduction Multi F MAX Eight-Zone LMU540HV 37-13/32 x 54-11/32 x 13 54, /8 x 1 Each, 3/4 x 1 Each 1 Model number shows nominal capacity and frame size designator. 2 Nominal capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Minimum number of connectable indoor units is two (2). INTRODUCTION 7

8 INDOOR UNIT OVERVIEW Multi F and Multi F MAX Indoor Unit Engineering Manual Table 2: Summary Data Multi F Indoor. Indoor Unit Type Art Cool TM Mirror Wall-Mounted Art Cool TM Gallery Wall-Mounted Model Number 1 Dimensions (W x H x D) (inches) Nominal Cooling Btu/h 2 Air Flow Rate (CFM) (H/M/L 3 ) LMAN097HVT 9, / 230 / /4 11-3/8 8-1/16 LMAN127HVT 12, / 318 / 300 Net Weight (lbs.) Pipe Connections (inches, O.D.) (Liquid, Vapor) 25 1/4, 3/8 LMAN187HVT 40-9/16 x 12-25/32 x 9-21/32 18, / 501 / /4, 1/2 LMAN097HVP 23-5/8 x 23-5/8 x 5-25/32 9, / 208 / 155 LMAN127HVP 11, / 258 / /4, 3/8 Standard Wall-Mounted LMN077HVT 35-1/4 x 11-3/8 x 8-9/32 7, / 177 / /4, 3/8 LSN090HSV4 34-7/8 x 11-1/4 x 8-1/4 9, / 230 / /4, 3/8 LSN120HSV4 34-7/8 x 11-1/4 x 8-1/4 12, / 318 / /4, 3/8 LMN157HVT 35-1/4 x 11-3/8 x 8-9/32 14, / 318 / /4, 3/8 LSN180HSV4 40-9/16 x 12-13/16 x 9-13/16 18, / 501 / /8, 5/8 LMN247HVT 40-9/16 x 12-25/32 x 9-27/32 24, / 600 / /4, 1/2 Ceiling-Concealed Duct LMDN096HV 27-9/16 x 7-15/32 x 27-9/16 9, / 247 / (Low Static) 1/4, 3/8 LMDN126HV 12, / 300 / /16 x 7-15/32 x 27-9/16 51 LMDN186HV 18, / 441 / 353 1/4, 1/2 Ceiling-Concealed Duct (High Static) Four-Way Ceiling-Cassette Vertical- Horizontal Air Handling LMHN240HV 46-17/32 x 11-23/32 x 17-23/32 24, / 618 / /4, 1/2 LMHN360HV 36,000 1,130 / 953 / /8, 5/8 LMCN077HV 7, / 212 / 177 Body: 22-7/16 x 8-7/16 x 22-7/16 LMCN097HV 9, / 265 / 230 Panel: 27-9/16 x 7/8 x 27-9/16 LMCN125HV 12, / 283 / 247 LMCN185HV LMVN240HV Body: 22-7/16 x 10-3/32 x 22-7/16 Panel: 27-9/16 x 7/8 x 27-9/16 18, / 424 / (Body), 7 (Panel) 34 (Body), 7 (Panel) 1/4, 3/8 1/4, 1/2 24, / 640 / /4, 1/2 18 x 48-21/32 x 21-1/4 LMVN360HV 36, / 880 / /8, 5/8 1 Model number shows nominal capacity and frame size designator. 2 Nominal capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 H/M/L = High/Medium/Low. 8 INTRODUCTION

9 CONTROLS AND OPTIONS OVERVIEW Table 3: Summary Data Zone Controllers. Zone Controller Name Model / Part No. Case Color Max. Wire Length (ft.) Description Simple Controller with Mode Selection PQRCVCL0Q AKB Black White 164 Allows control of indoor unit ON / OFF, operation mode, fan speed, and temperature setpoint for up to 16 indoor units. Included with Ceiling-Concealed Duct (High Static and Low Static 1 ) and Vertical-Horizontal Air Handling 1 indoor units; optional accessory for all other indoor unit types. Simple Controller without Mode Selection PQRCHCA0 PQRCHCA0QW Black White 164 Allows control of indoor unit ON / OFF, fan speed, and temperature setpoint for up to 16 indoor units. LG 7-Day Programmable Thermostat Wireless Controller PREMTB10U White 164 AKB AKB AKB Ivory - AKB Allows control of indoor unit ON / OFF, operation mode, occupied / unoccupied temperature setpoints, fan speed, and airflow direction for up to 16 indoor units. Programmable schedule with five events per day. Allows control of indoor unit ON / OFF, operation mode, fan speed, and temperature setpoint. Also provides subfunction control. Included with Art Cool Mirror 3 and Gallery 4 Wall- Mounted, Standard HVT 3 Wall-Mounted, Standard HSV 5 Wall-Mounted, and Four-Way Cassette 6 indoor units; optional accessory for Duct and Vertical-Horizontal AHU with use of wired controller. Introduction Wall-Mounted Remote Temperature Sensor PQRSTA0 Ivory 50 Allows remote temperature measurement for four-way ceiling cassette, ceiling-concealed duct, and vertical-horizontal air handling indoor units. 1 Simple Mode Controllers for the ceiling-concealed duct (high static and low static) and the vertical-horizontal air handling indoor units are also referenced by Model No. PQRCVCL0QW. Before specifying or placing an order, refer to the V-Net Network Solutions Engineering Product Data Book, and review the detailed technical data provided to fully understand the capabilities and limitations of these devices. For information on controller capatibility, refer to the Controls and Options Table on page 12 Table 4: Summary Data Controller Accessories. Controller Accessory Name Model No. Description For Auxiliary Heater Relay Kit PRARH0 PRARS0 Adds coordinated control of an external heater with normal heat pump operations. Contact energizes at 2.7 F below setpoint. De-energizes at 2.7 F above setpoint. Ceiling-concealed duct (high static and low static) and four-way ceiling cassette indoor units. Standard and Art Cool Mirror wall-mounted indoor units. INTRODUCTION 9

10 CONTROLS AND OPTIONS OVERVIEW Table 5: Summary Data Zone Controller Communication Cables. Communication Cable Name Model No. Max. Wire Length (ft.) Description Wired Remote Group Control Cable Assembly PZCWRCG3 32 Required when grouping multiple indoor units with a single zone controller. Multi F and Multi F MAX Indoor Unit Engineering Manual Table 6: Summary Data Specialty Application Devices. Specialty Application Device Name Model No. Dry Contact Unit 24 VAC Dry Contact Unit for Setback Dry Contact Unit for Thermostat PI-485 V-net Control Integration Board Power Distribution Indicator (PDI) Premium Wired Remote / Group Control Extension Cable PQDSB1 PQDSBC PQDSBNGCM1 PMNFP14A1 PQNUD1S41 Connects to Indoor Unit Outdoor Unit Comm. BUS PZCWRC1 32 Before specifying or placing an order, refer to the V-Net Network Solutions Engineering Product Data Book, and review the detailed technical data provided to fully understand the capabilities and limitations of these devices. For information on controller capabilities, refer to the Controls and Options Table on page 12. Application ON / OFF, Run Status, Error Status ON / OFF, Mode, Controller Lock, Power Save, Run Status, Error Status ON / OFF, Thermo ON / OFF, Mode, Fan Speed, Run Status, Error Status Energy Consumption Monitoring Binary Signals Input / Output Description 1 / 2 Enables the indoor unit to be controlled and monitored by third-party controls using 2 / 2 binary inputs and outputs. Before specifying or placing an order, refer to the V-Net Network Solutions Engineering Product Data Book, and review the detailed technical data provided to fully understand the capabilities and limitations of these devices. For information on controller capabilities, refer to the Controls and Options Table on page 12. Increases the distance between a remote controller and an indoor unit, or between indoor units in a control group. 8 / 0 Enables the indoor unit to be controlled and monitored by a third-party thermostat or controller. Control integration to LG V-net controls (AC Smart Premium, ACP, BACnet, LonWorks, etc.) Monitors total outdoor unit power consumption for up to eight systems, and distributes per indoor unit based on weighted calculation. 10 INTRODUCTION

11 CONTROLS AND OPTIONS OVERVIEW Table 7: Summary Data Central Controllers (Connect to the Outdoor Unit Through the PI-485 Board (accessory, sold separately). Central Controller Name Model No. AC Smart Premium Devices per Controller Systems per Comm. BUS Devices per Comm. BUS No. of Comm. BUS ports PQCSW421E0A Binary Signals Input / Output 2 DI / 2 DO Power / Connection 24 VAC Description Provides for scheduling, auto-changeover, setback, remote controller lock, setpoint range limit, run time limit, web access, alarm notification, visual floorplan navigation, peak/demand control, software device interlocking, PDI integration, and AC Manager Plus integration advanced functionality in addition to basic unit control and monitoring. AC Ez PQCSZ250S Advanced Control Platform (ACP) Standard Advanced Control Platform (ACP) Premium PQCPC22N PQCPC22A (128 with PDI Premium) 64 (128 with PDI Premium) 4 12 VDC / Outdoor Unit 2 / 2 24 VAC 10 / 4 24 VAC Provides for scheduling in addition to basic indoor unit control and monitoring. Provides for scheduling, remote controller lock, setpoint range limit, web access, peak / demand control, PDI integration, and AC Manager Plus integration advanced functionality in addition to basic unit control and monitoring. Before specifying or placing an order, refer to the V-Net Network Solutions Engineering Product Data Book, and review the detailed technical data provided to fully understand the capabilities and limitations of these devices. For information on controller capabilities, refer to the Controls and Options Table on page 12. Introduction Table 8: Summary Data Integration Solutions (Connect to Outdoor Unit Through the PI-485 Board (accessory, sold separately). Central Controller Name Model No. Devices per Controller Systems per Comm. BUS Devices per Comm. BUS No. of Comm. BUS ports Binary Signals Input / Output Power / Connection Description BACnet Gateway PQNFB17C LonWorks Gateway PLNWKB (128 with PDI Premium) 64 (128 with PDI Premium) 4 2 / 2 24 VAC 1 2 / 2 24 VAC Allow integration of LG equipment for control and monitoring by open protocol BACnet and LonWorks building automation and controls systems. Before specifying or placing an order, refer to the V-Net Network Solutions Engineering Product Data Book, and review the detailed technical data provided to fully understand the capabilities and limitations of these devices. For information on controller capabilities, refer to the Controls and Options Table on page 12. INTRODUCTION 11

12 CONTROLS AND OPTIONS OVERVIEW Multi F and Multi F MAX Indoor Unit Engineering Manual Table 9: Indoor Functions, Controls and Options. Airflow Filter Operation Controllers Indoor Unit Type ART COOL Mirror Wall Mounted ART COOL Gallery Standard Wall Mounted Ceiling Concealed (Low Static) Ducted Ceiling Concealed (High Static) Ducted Four-Way Ceiling Cassette Vertical- Horizontal Air Handling Unit Air supply outlets Airflow direction (left/right) Auto Auto Auto Airflow direction (up/down) Auto Auto Auto Auto Auto swing (left/right) Auto swing (up/down) Airflow steps (fan/cool/heat) 6 / 6 / 5 5 / 5 / 4 6 / 6 / 5 3 / 3 / 3 3 / 3 / 3 4 / 5 / 4 3 / 3 / 3 Chaos wind (random fan speed) Jet-cool Swirl wind Washable anti-fungal 1 Plasma 2 o 3 3M HAF 2 Ventilation 4 Drain pump E.S.P. control Electric heater o High ceiling Hot Start Self diagnostics Soft Dry (dehumidification) Auto operation Auto clean (coil dry) Auto restart Child lock o o o o o o o Forced operation Group control Requires the use of one Group control Cable Kit (PZCWRCG3) for every additional indoor unit o o o o o o o Sleep mode Timer (on/off) Weekly schedule o o o o Two thermistor control o o o o o o o 7-Day programmable controller o o o o o o o Simple wired remote controller o o o o Wireless LCD remote control o 5 o 5 o 5 Dry contact o o o o o o o Dry contact (temperature setting) o o o o o o o Central control (LGAP) Connector for Water Sensor 1 Primary washable filters. 2 Secondary filter (plasma: HVT wall-mount and cassette; 3M: HSV4) 3 Branch location and static pressure requirements. Requires PTPKQ0 Plasma kit. 4 Requires ventilation kit PTVK430 (Temperature, humidity, and volume limitations apply). 5 Requires wired zone controller. = Standard feature o = Unit option 12 INTRODUCTION

13 CONTROLS AND OPTIONS OVERVIEW Table 10: Multi F MAX Outdoor Unit Accessories Overview. Multi F MAX Accessory Name Model No. Description Two-Port Branch Distribution Unit PMBD3620 Distributes refrigerant from Multi F MAX outdoor unit from one (1) to two (2) indoor units (maximum 24,000 Btu/h for each port). Three-Port Branch Distribution Unit PMBD3630 Distributes refrigerant from Multi F MAX outdoor unit from one (1) to three (3) indoor units (maximum 24,000 Btu/h for each port). Four-Port Branch Distribution Unit PMBD3640 PMBD3641 Distributes refrigerant from Multi F MAX outdoor unit from one (1) to four (4) indoor units (maximum 24,000 Btu/h for each port). Distributes refrigerant from Multi F MAX outdoor unit from one (1) to four (4) indoor units (maximum 24,000 Btu/h for ports A,B,C; maximum 36,000 Btu/h for D port). Ø3/4 Gas Ø3/8 Liquid Y-branch Kit PMBL5620 Y-branch Kit for Multi F MAX outdoor unit to connect up to two (2) branch distribution units. Introduction Table 11: Indoor Unit Accessories Overview. Model No. Description For Four-Way Ceiling-Cassette Indoor PT-UQC Ceiling Grille PTPKQ0 Plasma Kit PTVK430 Ventilation Kit For Vertical-Horizontal Air Handing ANEH053B1 5 kw Electric Heater ANEH103B2 10 kw Electric Heater For Ceiling-Concealed Duct (High Static) Indoor ZFBXBG01A High Efficiency Filter Box ZFBXD201A Dynamic V8 2VL Low Profile Air Cleaner ZPLMV201A Dynamic 2VL Air Cleaner Low Profile Return Air Plenum ZFBXD402A Dynamic V8 4VL Low Profile Air Cleaner ZPLMV402A Dynamic 4VL Air Cleaner Low Profile Return Air Plenum ZFLT1301A 4-Pack Dynamic V8 VL Air Cleaner Replacement Filter Pads ZFLT1302A 24-Pack Dynamic V8 VL Air Cleaner Replacement Filter Pads ZGRLRA01A Dynamic V8 Air Cleaner Louvered Return Air Grille (one per plenum ) ZGRLRA02A Dynamic V8 Air Cleaner Egg Crate Return Air Grille (one per plenum) INTRODUCTION 13

14 Multi F and Multi F MAX Indoor Unit Engineering Manual 14 INTRODUCTION

15 OUTDOOR UNIT DATA Product Features and Benefits on page 16 Mechanical Specifications on page 17 General Data on page 18 Dimensions on page 20 Rated Cooling Combination Tables on page 23 Rated Heating Combination Tables on page 31 Cooling Tables on page 39 Heating Tables on page 183 Electrical Data on page 279 Acoustic Data on page 279 Refrigerant Flow Diagrams on page 280 Wiring Diagrams on page 283 Operation Range on page 286

16 SYSTEMS Features and Benefits The multiple piping of Multi F systems can support two, three or four indoor units that are typically mounted in separate rooms. Compact refrigerant pipes work in tandem with wiring to link the outdoor unit with all indoor units directly. Most indoor units include its own remote control, allowing the user to set the temperature individually in different rooms. The indoor units are available in a variety of capacities and styles, including Art Cool Mirror and Gallery Wall Mounts, Standard Wall Mount, Four-Way Ceiling Cassette, Horizontal Ceiling Concealed Duct, and Vertical-Horizontal Air Handling models. Multi F and Multi F MAX Heat Pump System Engineering Manual Features Defrost Restart delay (three [3] minutes) Self diagnosis Soft start Inverter (Variable speed compressor) Low ambient operation to 14ºF (DB, Cooling mode) Optional low ambient baffle kit allows cooling operation down to -4ºF (DB) Heating operation down to -4ºF (WB) Benefits Long refrigerant piping lengths allow for extra design flexibility in indoor unit placement Easy installation: Little to no ductwork required; most indoor units can mount on any wall Indoor unit and outdoor unit dimensions ensure space saving convenience All-season use heat pump models have both cooling and heating capabilities Auto operation / auto restart operation Gold Fin anti-corrosion Outdoor unit includes sufficient refrigerant for charging two (2), three (3), or four (4) indoor units using 24.6 feet of pipe to each Figure 1: Dual-Zone Multi F Heat Pump Inverter System Mix and match for 9,000-24,000 Btu/h. Figure 2: Tri-Zone Multi F Heat Pump Inverter System Mix and match for 12,000-33,000 Btu/h. Figure 3: Quad-Zone Multi F Heat Pump Inverter System Mix and match for 18,000-48,000 Btu/h. 16 OUTDOOR UNIT

17 SYSTEMS Mechanical Specifications Multi F Heat Pump Condensing General A Multi F multi-zone system is comprised of one heat pump outdoor unit connected to two, three, or four indoor units using a shared refrigerant piping circuit between the outdoor unit and each indoor unit, and includes integrated controls supplied by LG. The outdoor unit is internally assembled, wired, and piped from the factory; all LG components are manufactured in a facility registered to ISO 9001 and ISO 14001, set by the International Organization for Standardization (ISO). The LG Multi F multi zone heat pump system components comply with Underwriters Laboratories (UL) 1995 Heating and Cooling Equipment Standard for Safety, and bear the Electrical Testing Laboratories (ETL) mark. The units are certified to AHRI 210 / 240. Figure 4: Multi F LMU18CHV and LMU24CHV Outdoor. Figure 5: Multi F LMU36CHV Outdoor Unit. Temperature Ranges The heat pump outdoor units are capable of operating in cooling mode from 14 F to +118 F ambient dry bulb (installing an optional Low Ambient Wind Baffle Kit will allow operation down to -4 F in cooling mode for all Multi F systems). The heat pump outdoor units are capable of operating in heating mode from -4 F to +64 F ambient wet bulb without additional low ambient controls. Frame The Multi F condensing unit case is constructed from pre-coated metal that has been tested in accordance with ASTM B-117 salt spray procedure for a minimum of 1,000 hours. Case has a removable front panel to allow access to major components and control devices, and legs to secure the unit during installation. Refrigerant System Multi F systems have a shared refrigerant circuit field piped to multiple (ducted, non-ducted or mixed) indoor units to effectively and efficiently control the heating or cooling operation of the multi zone system. All refrigerant lines from the outdoor unit to the indoor units are field-installed and must be insulated separately. All Multi F systems use R410A refrigerant. The outdoor units are equipped with a refrigerant strainer, check valves, oil separator, accumulator, four-way reversing valve, electronic expansion valve(s) (EEV), high side and low side refrigerant charging ports, and a service port. Each outdoor unit also includes sensors for suction temperature, discharge temperature, high-pressure, low-pressure, heat exchanger temperature, and outdoor temperature conditions. includes Teflon coated bearings. The inverter motor is capable of providing a modulation range of 20Hz to 100Hz with control in 1Hz increments. The compressor is protected with phase-reversal protection, uses a factory-charge of Polyvinyl Ether (PVE) oil, and is mounted to avoid the transmission of vibration. Fan and Motors Each outdoor unit includes one direct drive variable speed propeller fan with Brushless Digitally Controlled (BLDC) motor with a horizontal air discharge. Fan blades are statically and dynamically balanced propeller fans made of durable Acrylonitrile Butadiene Styrene (ABS) plastic, and include a raised fan guard to limit contact with moving parts. The motors have inherent overload protection, permanently lubricated bearings, and a maximum speed up to 950 rpm. All Multi F outdoor units have a horizontal discharge airflow. Outdoor Unit Coil The outdoor unit coils are factory-built of aluminum fins mechanically bonded on copper tubing. Coils have a minimum of two rows, a minimum of 14 fins per inch, and have been factory pressure-tested. Coil fins also have a factory applied corrosion-resistant GoldFin material with hydrophilic coating that has been tested in accordance with ASTM B-117 salt spray test procedure for a minimum of 1,000 hours. Electrical All Multi F outdoor units shall have 208/230V, 1 phase, 60Hz electrical power capable of operating within ±10% of the rated voltage. Multi F Outdoor Unit Data Refrigeration Oil Control The outdoor units have an oil separator to separate oil mixed with the refrigerant gas during compression and return oil to the compressor. The outdoor units also have an oil injection mechanism to ensure a consistent film of oil on all moving compressor parts at low speed. Compressor Multi F condensing units are equipped with one hermetically sealed, digitally controlled, inverter driven twin-rotary compressor that Controls Factory installed microprocessor controls in the outdoor unit and indoor units shall perform functions to efficiently operate the multizone system. System wiring must be installed in a tree configuration from outdoor unit to indoor units through four conductor power/ transmission cable. The system is capable of performing continuous operation, even when power is turned off to an individual indoor unit. OUTDOOR UNIT 17

18 OUTDOOR UNIT General Data Multi F and Multi F MAX Heat Pump System Engineering Manual Table 12: Multi F Outdoor Unit Specifications. Model Number LMU18CHV LMU24CHV LMU36CHV Rated Cooling (Btu/h) 1 17,000 20,000 32,000 Rated Heating (Btu/h) 1 22,000 24,000 36,000 Operating Range Cooling ( F DB) Heating ( F WB) Compressor Inverter Quantity Twin Rotary x 1 Twin Rotary x 1 Twin Rotary x 1 Oil/Type FVC68D FVC68D FVC68D Fan (Side Discharge) Type Propeller Propeller Propeller Motor Output (W) x Qty x x x 1 Motor/Drive Brushless Digitally Controlled / Direct Maximum Air Volume (CFM) 1,766 1,766 2,119 Unit Data Refrigerant Type R410A R410A R410A Refrigerant Control/Location EEV/Outdoor Unit EEV/Outdoor Unit EEV/Outdoor Unit Min. Number Indoor /System Max. Number Indoor /System Maximum Allowable Total Indoor Unit Connected (Btu/h) 24,000 33,000 48,000 Sound Pressure (Cooling / Heating) db(a) 3 49 / / / 55 Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring 4 (No. x AWG) 3C x 14 3C x 12 3C x 12 Heat Exchanger Material and Fin Coating Copper Tube/Aluminum Fin and GoldFin /Hydrophilic Rows/Columns/Fins per inch x Qty. (2 x 28 x 14) x 1 (2 x 28 x 14) x 1 (2 x 38 x 14) x 1 Piping Liquid Line Connection (in., OD) x Qty. 1/4 x 2 1/4 x 3 1/4 x 4 Vapor Line Connection (in., OD) x Qty. 3/8 x 2 3/8 x 3 3/8 x 4 Factory Charge lbs. of R410A Piping Lengths Maximum Total Piping (ft.) Maximum Outdoor Unit to Indoor Unit Piping (ft) Piping Length (No Additional Refrigerant [ft]) Maximum Elevation between Outdoor Unit and Indoor Unit (ft.) Maximum Elevation between Indoor Unit and Indoor Unit (ft.) Rated capacity applied with non-ducted indoor units, and is rated 0 ft. above sea level with 25 ft. of refrigerant line per indoor unit and a All capacities are net with a combination ratio between %. Rated cooling capacity obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Rated heating capacity obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 2 At least two indoor units should be connected. For allocated capacity information, see the combination tables on pages 23 to Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the same in both cooling and heating mode. These values can increase due to ambient conditions during operation. 4 All power wiring minimum 3-conductor, stranded, shielded, and must comply with applicable local and national codes. For detailed electrical information, please refer to electric characteristics on page Piping lengths are equivalent. 6 Installation of an optional Low Ambient Wind Baffle Kit will allow operation down to -4 F in cooling mode. 18 OUTDOOR UNIT

19 OUTDOOR UNIT General Data Table 13: LMU18CHV Efficiency Ratings. 1,2 System LMU18CHV Combined With Rated Cooling (Btu/h) EER (95 F) SEER Rated Heating (Btu/h) COP (47 F) HSPF Low Heating (Btu/h) Non-Ducted Indoor 17, , , Ducted Indoor 14, , , Mixed Non-Ducted and Ducted Indoor 15, , , COP (17 F) Table 14: LMU24CHV Efficiency Ratings. 1,2, System LMU24CHV System Combined With Rated Cooling (Btu/h) EER (95 F) SEER Rated Heating (Btu/h) COP (47 F) HSPF Low Heating (Btu/h) Non-Ducted Indoor 20, , , Ducted Indoor 17, , , Mixed Non-Ducted and Ducted Indoor 18, , , Table 15: LMU36CHV Efficiency Ratings. 1,2 LMU36CHV Combined With Rated Cooling (Btu/h) EER (95 F) SEER Rated Heating (Btu/h) COP (47 F) HSPF Low Heating (Btu/h) Non-Ducted Indoor 32, , , Ducted Indoor 28, , , Mixed Non-Ducted and Ducted Indoor 30, , , COP (17 F) COP (17 F) 1 Rated capacity is rated 0 ft. above sea level with 25 ft. of refrigerant line per indoor unit and a All capacities are net with a combination ratio between %. Rated cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Rated heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 2 Rated capacity is certified under AHRI Standard 210 / 240. EER, IEER, COP, and HSPF are subject to change. See for the latest values. Multi F Outdoor Unit Data OUTDOOR UNIT 19

20 OUTDOOR UNIT Dimensions Figure 6: LMU18CHV External Dimensions. MAX [Unit : mm(inch)] Multi F and Multi F MAX Heat Pump System Engineering Manual Gravity point No. 20 Part Name 1 Air discharge grille 2 Gas pipe connection 3 Liquid pipe connection 4 Power & transmission connection 5 Main service valve(gas) 6 Main service valve(liquid) OUTDOOR UNIT Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit should be grounded in accordance with the local regulations or applicable national codes. 3. All electrical components and materials to be supplied on the site must comply with the local regulations or international codes. 4. Electrical characteristics chapter should be considered for electrical work and design. Especially the capacity of power cable and circuit breaker for outdoor unit should be more than that of electrical characteristics chapter.

21 Multi F Outdoor Unit Data OUTDOOR UNIT Dimensions Figure 7: LMU24CHV External Dimensions. [Unit : mm(inch)] Gravity point No Part Name Air discharge grille Gas pipe connection Liquid pipe connection Power & transmission connection Main service valve(gas) Main service valve(liquid) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit should be grounded in accordance with the local regulations or applicable national codes. 3. All electrical components and materials to be supplied on the site must comply with the local regulations or international codes. 4. Electrical characteristics chapter should be considered for electrical work and design. Especially the capacity of power cable and circuit breaker for outdoor unit should be more than that of electrical characteristics chapter. OUTDOOR UNIT 21

22 OUTDOOR UNIT Dimensions Figure 8: LMU36CHV External Dimensions. [Unit : mm(inch)] Gravity point Multi F and Multi F MAX Heat Pump System Engineering Manual No Part Name Air discharge grille Gas pipe connection Liquid pipe connection Main service valve(liquid) Main service valve(gas) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit should be grounded in accordance with the local regulations or applicable national codes. 3. All electrical components and materials to be supplied on the site must comply with the local regulations or international codes. 4. Electrical characteristics chapter should be considered for electrical work and design. Especially the capacity of power cable and circuit breaker for outdoor unit should be more than that of electrical characteristics chapter. 22 OUTDOOR UNIT

23 PERFORMANCE DATA Rated Cooling Combination Tables Table 16: LMU18CHV with Non-Ducted, Ducted, and Mixed Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Non-Ducted Indoor ,000 7, , , , ,180 1, ,000 9, , , , ,240 1, ,500 8, , , , ,310 1, Two ,263 10, , , , ,310 1, ,286 9, , , , ,310 1, ,409 11, , , , ,310 1, ,375 10, , , , ,310 1, ,500 8, , , , ,310 1, Ducted Indoor Two ,000 7, , , , ,308 1, ,000 8, , , , ,308 1, ,000 7, , , , ,308 1, Mixed Indoor Two ,382 8, , , , ,239 1, ,750 7, , , , ,309 1, ,711 9, , , , ,309 1, ,643 8, , , , ,309 1, ,813 9, , , , ,309 1, ,750 7, , , , ,309 1, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. Multi F Outdoor Unit Data OUTDOOR UNIT 23

24 PERFORMANCE DATA Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 17: LMU24CHV with Non-Ducted and Ducted Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Indoor IDU IDU IDU IDU Total Non-Ducted Indoor Two Three Unit 1 (Btu/h) Room Total Input (W) Unit 2 (Btu/h) Unit 3 (Btu/h) Unit 4 (Btu/h) Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw Min. Rated Max ,000 7, , , , ,140 1, ,000 9, , , , ,290 1, ,000 9, , , , ,008 1,440 2, ,000 12, , , , ,057 1,510 2, ,571 11, , , , ,106 1,580 2, ,364 13, , , , ,106 1,580 2, ,500 12, , , , ,106 1,580 2, ,000 10, , , , ,106 1,580 2, ,600 14, , , , ,106 1,580 2, ,667 13, , , , ,106 1,580 2, ,889 11, , , , ,106 1,580 2, ,000 12, , , , ,106 1,580 2, ,000 10, , , , ,106 1,580 2, ,516 15, , , , ,106 1,580 2, ,455 14, , , , ,106 1,580 2, ,091 10, , , , ,106 1,580 2, ,667 6,667 6,667-12, , , ,037 1,481 2, ,087 6,087 7,826-12, , , ,037 1,481 2, ,600 7,200 7,200-12, , , ,037 1,481 2, ,385 5,385 9,231-12, , , ,037 1,481 2, ,667 6,667 6,667-12, , , ,037 1,481 2, ,000 6,429 8,571-12, , , ,037 1,481 2, ,828 4,828 10,345-12, , , ,037 1,481 2, ,000 6,000 8,000-12, , , ,037 1,481 2, ,516 5,806 9,677-12, , , ,037 1,481 2, ,516 7,742 7,742-12, , , ,037 1,481 2, ,375 4,375 11,250-12, , , ,037 1,481 2, ,455 5,455 9,091-12, , , ,037 1,481 2, ,455 7,273 7,273-12, , , ,037 1,481 2, Ducted Indoor Two Three ,010 8, , , , ,054 1,505 2, ,629 10, , , , ,156 1,651 2, ,900 8, , , , ,156 1,651 2, ,933 11, , , , ,156 1,651 2, ,120 10, , , , ,156 1,651 2, ,933 5,933 5,933-10, , , ,084 1,548 2, ,340 5,340 7,120-10, , , ,084 1,548 2, ,855 6,473 6,473-10, , , ,084 1,548 2, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. EER 4 The specification may be subject to change without prior notice for purpose of improvement. * At least two indoor units should be connected. SEER 24 OUTDOOR UNIT

25 PERFORMANCE DATA Rated Cooling Combination Tables Table 18: LMU24CHV with Mixed Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Indoor IDU IDU IDU IDU Total Mixed Indoor Two Three Unit 1 (Btu/h) Room Total Input (W) Unit 2 (Btu/h) Unit 3 (Btu/h) Unit 4 (Btu/h) Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw Min. Rated Max ,615 8, , , , ,319 1, ,505 8, , , , ,031 1,473 2, ,615 11, , , , ,081 1,544 2, ,100 10, , , , ,131 1,616 2, ,088 11, , , , ,131 1,616 2, ,450 9, , , , ,131 1,616 2, ,292 13, , , , ,131 1,616 2, ,300 12, , , , ,131 1,616 2, ,400 10, , , , ,131 1,616 2, ,560 11, , , , ,131 1,616 2, ,591 10, , , , ,131 1,616 2, * ,155 13, , , , ,131 1,616 2, ,752 5,752 7,396-11, , , ,060 1,515 2, ,292 6,804 6,804-11, , , ,060 1,515 2, ,088 5,088 8,723-11, , , ,060 1,515 2, ,300 6,300 6,300-11, , , ,060 1,515 2, ,725 6,075 8,100-11, , , ,060 1,515 2, ,670 5,670 7,560-11, , , ,060 1,515 2, ,268 5,487 9,145-11, , , ,060 1,515 2, ,268 7,316 7,316-11, , , ,060 1,515 2, ,134 4,134 10,631-11, , , ,060 1,515 2, ,155 5,155 8,591-11, , , ,060 1,515 2, ,155 6,873 6,873-11, , , ,060 1,515 2, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. EER 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The indoor unit must be non-ducted type. SEER Multi F Outdoor Unit Data OUTDOOR UNIT 25

26 PERFORMANCE DATA Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 19: LMU36CHV with Non-Ducted Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Non-Ducted Indoor ,000 7, , , , ,360 1, ,000 9, , , , ,071 1,530 2, ,000 9, , , , ,204 1,720 2, ,000 12, , , , ,260 1,800 2, ,000 12, , , , ,379 1,970 2, ,000 15, , , , ,428 2,040 2, ,000 15, , , , ,526 2,180 3, ,000 12, , , , ,526 2,180 3, ,000 18, , , , ,582 2,260 3, ,000 18, , , , ,694 2,420 3, Two ,000 15, , , , ,694 2,420 3, ,000 18, , , , ,841 2,630 3, ,000 15, , , , ,841 2,630 3, ,000 24, , , , ,883 2,690 3, ,727 23, , , , ,932 2,760 3, ,545 17, , , , ,932 2,760 3, ,000 16, , , , ,932 2,760 3, ,667 21, , , , ,932 2,760 3, ,308 19, , , , ,932 2,760 3, ,714 18, , , , ,932 2,760 3, ,000 16, , , , ,932 2,760 3, Three ,000 7,000 7,000-12, , , ,337 1,910 2, ,000 7,000 9,000-13, , , ,442 2,060 2, ,000 9,000 9,000-15, , , ,554 2,220 3, ,000 7,000 12,000-15, , , ,582 2,260 3, ,000 9,000 9,000-16, , , ,610 2,300 3, ,000 9,000 12,000-16, , , ,645 2,350 3, ,000 7,000 15,000-17, , , ,680 2,400 3, ,000 9,000 12,000-18, , , ,722 2,460 3, ,000 9,000 15,000-18, , , ,764 2,520 3, ,000 12,000 12,000-18, , , ,764 2,520 3, ,000 7,000 18,000-19, , , ,806 2,580 3, ,727 8,727 14,545-19, , , ,806 2,580 3, ,727 11,636 11,636-19, , , ,806 2,580 3, ,588 8,471 16,941-19, , , ,806 2,580 3, ,588 11,294 14,118-19, , , ,806 2,580 3, ,000 8,000 16,000-19, , , ,806 2,580 3, ,000 10,667 13,333-19, , , ,806 2,580 3, ,667 10,667 10,667-19, , , ,806 2,580 3, ,054 10,378 15,568-19, , , ,806 2,580 3, ,054 12,973 12,973-19, , , ,806 2,580 3, ,895 5,895 20,211-19, , , ,806 2,580 3, ,385 9,846 14,769-19, , , ,806 2,580 3, ,385 12,308 12,308-19, , , ,806 2,580 3, ,846 9,846 12,308-19, , , ,806 2,580 3, ,600 7,200 19,200-19, , , ,806 2,580 3, ,600 12,000 14,400-19, , , ,806 2,580 3, ,857 6,857 18,286-19, , , ,806 2,580 3, ,857 11,429 13,714-19, , , ,806 2,580 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. 26 OUTDOOR UNIT

27 PERFORMANCE DATA Rated Cooling Combination Tables Table 20: LMU36CHV with Non-Ducted Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Non-Ducted Indoor ,143 9,143 13,714-19, , , ,806 2,580 3, ,143 11,429 11,429-19, , , ,806 2,580 3, ,209 8,930 17,860-19, , , ,806 2,580 3, ,209 13,395 13,395-19, , , ,806 2,580 3, ,400 8,533 17,067-19, , , ,806 2,580 3, ,400 12,800 12,800-19, , , ,806 2,580 3, Three ,533 10,667 12,800-19, , , ,806 2,580 3, ,667 10,667 10,667-19, , , ,806 2,580 3, ,870 10,435 16,696-19, , , ,806 2,580 3, ,000 10,000 16,000-19, , , ,806 2,580 3, ,000 8,000 16,000-19, , , ,806 2,580 3, ,000 12,000 12,000-19, , , ,806 2,580 3, ,000 10,000 12,000-19, , , ,806 2,580 3, Four ,000 7,000 7,000 7,000 16, , , ,540 2,200 3, ,000 7,000 7,000 9,000 18, , , ,645 2,350 3, ,000 7,000 9,000 9,000 19, , , ,723 2,461 3, ,788 6,788 6,788 11,636 19, , , ,723 2,461 3, ,588 8,471 8,471 8,471 19, , , ,723 2,461 3, ,400 6,400 8,229 10,971 19, , , ,723 2,461 3, ,222 6,222 6,222 13,333 19, , , ,723 2,461 3, ,000 8,000 8,000 8,000 19, , , ,723 2,461 3, ,054 7,784 7,784 10,378 19, , , ,723 2,461 3, ,895 5,895 7,579 12,632 19, , , ,723 2,461 3, ,895 5,895 10,105 10,105 19, , , ,723 2,461 3, ,744 5,744 5,744 14,769 19, , , ,723 2,461 3, ,385 7,385 7,385 9,846 19, , , ,723 2,461 3, ,600 7,200 7,200 12,000 19, , , ,723 2,461 3, ,600 7,200 9,600 9,600 19, , , ,723 2,461 3, ,463 5,463 7,024 14,049 19, , , ,723 2,461 3, ,463 5,463 9,366 11,707 19, , , ,723 2,461 3, ,857 6,857 6,857 11,429 19, , , ,723 2,461 3, ,857 6,857 9,143 9,143 19, , , ,723 2,461 3, ,209 6,698 6,698 13,395 19, , , ,723 2,461 3, ,209 6,698 8,930 11,163 19, , , ,723 2,461 3, ,209 8,930 8,930 8,930 19, , , ,723 2,461 3, ,091 5,091 8,727 13,091 19, , , ,723 2,461 3, ,091 5,091 10,909 10,909 19, , , ,723 2,461 3, ,978 4,978 4,978 17,067 19, , , ,723 2,461 3, ,400 6,400 6,400 12,800 19, , , ,723 2,461 3, ,400 6,400 8,533 10,667 19, , , ,723 2,461 3, ,400 8,533 8,533 8,533 19, , , ,723 2,461 3, ,870 6,261 8,348 12,522 19, , , ,723 2,461 3, ,870 6,261 10,435 10,435 19, , , ,723 2,461 3, ,870 8,348 8,348 10,435 19, , , ,723 2,461 3, ,766 4,766 6,128 16,340 19, , , ,723 2,461 3, ,766 4,766 10,213 12,255 19, , , ,723 2,461 3, ,000 6,000 8,000 12,000 19, , , ,723 2,461 3, ,000 6,000 10,000 10,000 19, , , ,723 2,461 3, ,000 8,000 8,000 8,000 19, , , ,723 2,461 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. Multi F Outdoor Unit Data OUTDOOR UNIT 27

28 PERFORMANCE DATA Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 21: LMU36CHV with Ducted Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Ducted Indoor ,875 7, , , , ,245 1,779 2, ,875 10, , , , ,426 2,038 2, ,500 10, , , , ,578 2,255 3, Two ,875 15, , , , ,752 2,503 3, ,500 15, , , , ,904 2,720 3, * ,636 20, , , , ,998 2,855 3, ,000 14, , , , ,998 2,855 3, * ,333 18, , , , ,998 2,855 3, Three Four ,875 7,875 7,875-14, , , ,665 2,379 3, ,875 7,875 10,500-15, , , ,781 2,544 3, ,636 10,182 10,182-16, , , ,868 2,669 3, ,000 7,000 14,000-16, , , ,868 2,669 3, ,333 9,333 9,333-16, , , ,868 2,669 3, ,462 8,615 12,923-16, , , ,868 2,669 3, ,000 8,000 12,000-16, , , ,868 2,669 3, ,600 11,200 11,200-16, , , ,868 2,669 3, ,000 10,500 10,500-16, , , ,868 2,669 3, ,000 7,000 7,000 7,000 16, , , ,782 2,545 3, ,462 6,462 6,462 8,615 16, , , ,782 2,545 3, ,000 6,000 8,000 8,000 16, , , ,782 2,545 3, ,600 5,600 5,600 11,200 16, , , ,782 2,545 3, ,600 7,467 7,467 7,467 16, , , ,782 2,545 3, ,250 5,250 7,000 10,500 16, , , ,782 2,545 3, ,000 7,000 7,000 7,000 16, , , ,782 2,545 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *A 1.3 multiplier is necessary for the calculation of total combination. 28 OUTDOOR UNIT

29 PERFORMANCE DATA Rated Cooling Combination Tables Table 22: LMU36CHV with Mixed Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Mixed Indoor ,563 8, , , , ,089 1,556 2, ,438 8, , , , ,225 1,750 2, ,563 11, , , , ,282 1,831 2, ,438 11, , , , ,403 2,004 2, ,438 14, , , , ,552 2,217 3, ,250 11, , , , ,552 2,217 3, ,563 16, , , , ,609 2,299 3, ,438 16, , , , ,723 2,462 3, Two ,250 14, , , , ,723 2,462 3, ,250 16, , , , ,873 2,675 3, ,563 22, , , , ,915 2,736 3, ,182 21, , , , ,965 2,807 3, ,636 16, , , , ,965 2,807 3, ,000 15, , , , ,965 2,807 3, ,000 20, , , , ,965 2,807 3, ,538 18, , , , ,965 2,807 3, * ,857 17, , , , ,965 2,807 3, * 24* ,000 15, , , , ,965 2,807 3, Three ,563 6,563 8,438-12, , , ,467 2,095 2, ,563 8,438 8,438-14, , , ,581 2,258 3, ,563 6,563 11,250-14, , , ,609 2,299 3, ,438 8,438 8,438-15, , , ,638 2,339 3, ,563 8,438 11,250-15, , , ,673 2,390 3, ,438 8,438 11,250-16, , , ,752 2,502 3, ,563 8,438 14,063-17, , , ,794 2,563 3, ,563 11,250 11,250-17, , , ,794 2,563 3, ,563 6,563 16,875-18, , , ,837 2,624 3, ,182 8,182 13,636-18, , , ,837 2,624 3, ,182 10,909 10,909-18, , , ,837 2,624 3, ,176 7,941 15,882-18, , , ,837 2,624 3, ,176 10,588 13,235-18, , , ,837 2,624 3, ,500 7,500 15,000-18, , , ,837 2,624 3, ,500 10,000 12,500-18, , , ,837 2,624 3, ,000 10,000 10,000-18, , , ,837 2,624 3, ,676 9,730 14,595-18, , , ,837 2,624 3, ,526 5,526 18,947-18, , , ,837 2,624 3, ,923 9,231 13,846-18, , , ,837 2,624 3, ,923 11,538 11,538-18, , , ,837 2,624 3, ,231 9,231 11,538-18, , , ,837 2,624 3, ,250 6,750 18,000-18, , , ,837 2,624 3, ,250 11,250 13,500-18, , , ,837 2,624 3, * ,429 6,429 17,143-18, , , ,837 2,624 3, ,429 10,714 12,857-18, , , ,837 2,624 3, ,571 8,571 12,857-18, , , ,837 2,624 3, ,571 10,714 10,714-18, , , ,837 2,624 3, * ,884 8,372 16,744-18, , , ,837 2,624 3, ,884 12,558 12,558-18, , , ,837 2,624 3, * ,000 8,000 16,000-18, , , ,837 2,624 3, ,000 12,000 12,000-18, , , ,837 2,624 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 29

30 PERFORMANCE DATA Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 23: LMU36CHV with Mixed Indoor Rated Cooling Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw EER SEER Mixed Indoor ,000 10,000 12,000-18, , , ,837 2,624 3, * ,565 9,783 15,652-18, , , ,837 2,624 3, Three * ,625 9,375 15,000-18, , , ,837 2,624 3, * ,500 7,500 15,000-18, , , ,837 2,624 3, ,500 11,250 11,250-18, , , ,837 2,624 3, ,375 9,375 11,250-18, , , ,837 2,624 3, Four ,563 6,563 6,563 8,438 16, , , ,673 2,390 3, ,563 6,563 8,438 8,438 18, , , ,752 2,503 3, ,364 6,364 6,364 10,909 18, , , ,752 2,503 3, ,176 7,941 7,941 7,941 18, , , ,752 2,503 3, ,000 6,000 7,714 10,286 18, , , ,752 2,503 3, ,500 7,500 7,500 7,500 18, , , ,752 2,503 3, ,676 7,297 7,297 9,730 18, , , ,752 2,503 3, ,526 5,526 7,105 11,842 18, , , ,752 2,503 3, ,526 5,526 9,474 9,474 18, , , ,752 2,503 3, ,385 5,385 5,385 13,846 18, , , ,752 2,503 3, ,923 6,923 6,923 9,231 18, , , ,752 2,503 3, ,250 6,750 6,750 11,250 18, , , ,752 2,503 3, ,250 6,750 9,000 9,000 18, , , ,752 2,503 3, ,122 5,122 6,585 13,171 18, , , ,752 2,503 3, ,122 5,122 8,780 10,976 18, , , ,752 2,503 3, ,429 6,429 6,429 10,714 18, , , ,752 2,503 3, ,429 6,429 8,571 8,571 18, , , ,752 2,503 3, ,884 6,279 6,279 12,558 18, , , ,752 2,503 3, ,884 6,279 8,372 10,465 18, , , ,752 2,503 3, ,884 8,372 8,372 8,372 18, , , ,752 2,503 3, ,773 4,773 8,182 12,273 18, , , ,752 2,503 3, * 45 4,667 4,667 4,667 16,000 18, , , ,752 2,503 3, ,000 6,000 6,000 12,000 18, , , ,752 2,503 3, ,000 6,000 8,000 10,000 18, , , ,752 2,503 3, ,000 8,000 8,000 8,000 18, , , ,752 2,503 3, ,565 5,870 7,826 11,739 18, , , ,752 2,503 3, ,565 5,870 9,783 9,783 18, , , ,752 2,503 3, ,565 7,826 7,826 9,783 18, , , ,752 2,503 3, * 47 4,468 4,468 5,745 15,319 18, , , ,752 2,503 3, ,468 4,468 9,574 11,489 18, , , ,752 2,503 3, ,625 5,625 7,500 11,250 18, , , ,752 2,503 3, ,625 5,625 9,375 9,375 18, , , ,752 2,503 3, ,500 7,500 7,500 7,500 18, , , ,752 2,503 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The indoor unit must be non-ducted type. 30 OUTDOOR UNIT

31 PERFORMANCE DATA Rated Heating Combination Tables Table 24: LMU18CHV with Non-Ducted, Ducted, and Mixed Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Non-Ducted Indoor ,540 8, , , , ,155 1,650 2, ,540 10, , , , ,309 1,870 2, ,000 11, , , , ,428 2,040 2, Two ,105 13, , , , ,428 2,040 2, ,429 12, , , , ,428 2,040 2, ,000 15, , , , ,428 2,040 2, ,250 13, , , , ,428 2,040 2, ,000 11, , , , ,428 2,040 2, Ducted Indoor Two ,900 9, , , , ,386 1,980 2, ,486 11, , , , ,386 1,980 2, ,900 9, , , , ,386 1,980 2, Mixed Indoor Two ,113 10, , , , ,290 1,843 2, ,450 10, , , , ,407 2,010 2, ,700 13, , , , ,407 2,010 2, ,957 11, , , , ,407 2,010 2, ,838 13, , , , ,407 2,010 2, ,450 10, , , , ,407 2,010 2, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. Multi F Outdoor Unit Data OUTDOOR UNIT 31

32 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 25: LMU24CHV with Non-Ducted and Ducted Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Non-Ducted Indoor ,700 7, , , , ,092 1,560 2, ,700 9, , , , ,134 1,620 2, ,900 9, , , , ,197 1,710 2, ,700 13, , , , ,232 1,760 2, ,900 13, , , , ,323 1,890 2, ,636 16, , , , ,358 1,940 2, ,000 15, , , , ,358 1,940 2, Two ,000 12, , , , ,358 1,940 2, ,720 17, , , , ,358 1,940 2, ,000 16, , , , ,358 1,940 2, ,667 13, , , , ,358 1,940 2, ,600 14, , , , ,358 1,940 2, ,000 12, , , , ,358 1,940 2, ,419 18, , , , ,358 1,940 2, ,545 17, , , , ,358 1,940 2, ,909 13, , , , ,358 1,940 2, Three ,700 7,700 7,700-13, , , ,246 1,780 2, ,304 7,304 9,391-14, , , ,260 1,800 2, ,720 8,640 8,640-14, , , ,260 1,800 2, ,462 6,462 11,077-14, , , ,260 1,800 2, ,000 8,000 8,000-14, , , ,260 1,800 2, ,000 7,714 10,286-14, , , ,260 1,800 2, ,793 5,793 12,414-14, , , ,260 1,800 2, ,200 7,200 9,600-14, , , ,260 1,800 2, ,419 6,968 11,613-14, , , ,260 1,800 2, ,419 9,290 9,290-14, , , ,260 1,800 2, ,250 5,250 13,500-14, , , ,260 1,800 2, ,545 6,545 10,909-14, , , ,260 1,800 2, ,545 8,727 8,727-14, , , ,260 1,800 2, Ducted Indoor Two Three ,281 9, , , , ,275 1,822 2, ,281 12, , , , ,410 2,014 2, ,250 11, , , , ,447 2,067 2, ,500 15, , , , ,447 2,067 2, ,000 13, , , , ,447 2,067 2, ,500 7,500 7,500-13, , , ,343 1,918 2, ,750 6,750 9,000-13, , , ,343 1,918 2, ,136 8,182 8,182-13, , , ,343 1,918 2, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. 32 OUTDOOR UNIT

33 PERFORMANCE DATA Rated Heating Combination Tables Table 26: LMU24CHV with Mixed Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Mixed Indoor ,459 9, , , , ,171 1,673 2, ,591 9, , , , ,236 1,766 2, ,459 12, , , , ,272 1,818 2, ,591 12, , , , ,366 1,952 2, ,719 14, , , , ,403 2,004 2, Two ,625 11, , , , ,403 2,004 2, ,510 16, , , , ,403 2,004 2, ,750 15, , , , ,403 2,004 2, ,333 12, , , , ,403 2,004 2, ,300 13, , , , ,403 2,004 2, ,568 12, , , , ,403 2,004 2, * ,341 16, , , , ,403 2,004 2, Three ,076 7,076 9,098-13, , , ,301 1,859 2, ,510 8,370 8,370-13, , , ,301 1,859 2, ,260 6,260 10,731-13, , , ,301 1,859 2, ,750 7,750 7,750-13, , , ,301 1,859 2, ,813 7,473 9,964-13, , , ,301 1,859 2, ,975 6,975 9,300-13, , , ,301 1,859 2, ,250 6,750 11,250-13, , , ,301 1,859 2, ,250 9,000 9,000-13, , , ,301 1,859 2, ,086 5,086 13,078-13, , , ,301 1,859 2, ,341 6,341 10,568-13, , , ,301 1,859 2, ,341 8,455 8,455-13, , , ,301 1,859 2, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The indoor unit must be non ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 33

34 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 27: LMU36CHV with Non-Ducted Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU 1 IDU 2 IDU 3 IDU 4 Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Non-Ducted Indoor ,700 7, , , , ,127 1,610 2, ,700 9, , , , ,246 1,780 2, ,900 9, , , , ,379 1,970 2, ,700 13, , , , ,435 2,050 2, ,900 13, , , , ,554 2,220 3, ,700 16, , , , ,603 2,290 3, ,900 16, , , , ,701 2,430 3, ,200 13, , , , ,701 2,430 3, ,700 19, , , , ,757 2,510 3, ,900 19, , , , ,869 2,670 3, Two ,200 16, , , , ,869 2,670 3, ,200 19, , , , ,016 2,880 4, ,500 16, , , , ,016 2,880 4, ,700 26, , , , ,058 2,940 4, ,818 26, , , , ,107 3,010 4, ,364 19, , , , ,107 3,010 4, ,000 18, , , , ,107 3,010 4, ,000 24, , , , ,107 3,010 4, ,846 22, , , , ,107 3,010 4, ,429 20, , , , ,107 3,010 4, ,000 18, , , , ,107 3,010 4, Three ,700 7,700 7,700-13, , , ,512 2,160 3, ,700 7,700 9,900-15, , , ,617 2,310 3, ,700 9,900 9,900-16, , , ,729 2,470 3, ,700 7,700 13,200-17, , , ,757 2,510 3, ,900 9,900 9,900-17, , , ,785 2,550 3, ,700 9,900 13,200-18, , , ,820 2,600 3, ,700 7,700 16,500-19, , , ,855 2,650 3, ,900 9,900 13,200-19, , , ,897 2,710 3, ,700 9,900 16,500-20, , , ,939 2,770 3, ,700 13,200 13,200-20, , , ,939 2,770 3, ,700 7,700 19,800-21, , , ,981 2,830 3, ,818 9,818 16,364-21, , , ,981 2,830 3, ,818 13,091 13,091-21, , , ,981 2,830 3, ,412 9,529 19,059-21, , , ,981 2,830 3, ,412 12,706 15,882-21, , , ,981 2,830 3, ,000 9,000 18,000-21, , , ,981 2,830 3, ,000 12,000 15,000-21, , , ,981 2,830 3, ,000 12,000 12,000-21, , , ,981 2,830 3, ,811 11,676 17,514-21, , , ,981 2,830 3, ,811 14,595 14,595-21, , , ,981 2,830 3, ,632 6,632 22,737-21, , , ,981 2,830 3, ,308 11,077 16,615-21, , , ,981 2,830 3, ,308 13,846 13,846-21, , , ,981 2,830 3, ,077 11,077 13,846-21, , , ,981 2,830 3, ,300 8,100 21,600-21, , , ,981 2,830 3, ,300 13,500 16,200-21, , , ,981 2,830 3, ,714 7,714 20,571-21, , , ,981 2,830 3, ,714 12,857 15,429-21, , , ,981 2,830 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. 34 OUTDOOR UNIT

35 PERFORMANCE DATA Rated Heating Combination Tables Table 28: LMU36CHV with Non-Ducted Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Non-Ducted Indoor ,286 10,286 15,429-21, , , ,981 2,830 3, ,286 12,857 12,857-21, , , ,981 2,830 3, ,860 10,047 20,093-21, , , ,981 2,830 3, ,860 15,070 15,070-21, , , ,981 2,830 3, ,200 9,600 19,200-21, , , ,981 2,830 3, ,200 14,400 14,400-21, , , ,981 2,830 3, Three ,600 12,000 14,400-21, , , ,981 2,830 3, ,000 12,000 12,000-21, , , ,981 2,830 3, ,478 11,739 18,783-21, , , ,981 2,830 3, ,750 11,250 18,000-21, , , ,981 2,830 3, ,000 9,000 18,000-21, , , ,981 2,830 3, ,000 13,500 13,500-21, , , ,981 2,830 3, ,250 11,250 13,500-21, , , ,981 2,830 3, Four ,700 7,700 7,700 7,700 18, , , ,827 2,610 3, ,700 7,700 7,700 9,900 19, , , ,883 2,690 3, ,700 7,700 9,900 9,900 21, , , ,918 2,740 3, ,636 7,636 7,636 13,091 21, , , ,918 2,740 3, ,412 9,529 9,529 9,529 21, , , ,918 2,740 3, ,200 7,200 9,257 12,343 21, , , ,918 2,740 3, ,000 7,000 7,000 15,000 21, , , ,918 2,740 3, ,000 9,000 9,000 9,000 21, , , ,918 2,740 3, ,811 8,757 8,757 11,676 21, , , ,918 2,740 3, ,632 6,632 8,526 14,211 21, , , ,918 2,740 3, ,632 6,632 11,368 11,368 21, , , ,918 2,740 3, ,462 6,462 6,462 16,615 21, , , ,918 2,740 3, ,308 8,308 8,308 11,077 21, , , ,918 2,740 3, ,300 8,100 8,100 13,500 21, , , ,918 2,740 3, ,300 8,100 10,800 10,800 21, , , ,918 2,740 3, ,146 6,146 7,902 15,805 21, , , ,918 2,740 3, ,146 6,146 10,537 13,171 21, , , ,918 2,740 3, ,714 7,714 7,714 12,857 21, , , ,918 2,740 3, ,714 7,714 10,286 10,286 21, , , ,918 2,740 3, ,860 7,535 7,535 15,070 21, , , ,918 2,740 3, ,860 7,535 10,047 12,558 21, , , ,918 2,740 3, ,860 10,047 10,047 10,047 21, , , ,918 2,740 3, ,727 5,727 9,818 14,727 21, , , ,918 2,740 3, ,727 5,727 12,273 12,273 21, , , ,918 2,740 3, ,600 5,600 5,600 19,200 21, , , ,918 2,740 3, ,200 7,200 7,200 14,400 21, , , ,918 2,740 3, ,200 7,200 9,600 12,000 21, , , ,918 2,740 3, ,200 9,600 9,600 9,600 21, , , ,918 2,740 3, ,478 7,043 9,391 14,087 21, , , ,918 2,740 3, ,478 7,043 11,739 11,739 21, , , ,918 2,740 3, ,478 9,391 9,391 11,739 21, , , ,918 2,740 3, ,362 5,362 6,894 18,383 21, , , ,918 2,740 3, ,362 5,362 11,489 13,787 21, , , ,918 2,740 3, ,750 6,750 9,000 13,500 21, , , ,918 2,740 3, ,750 6,750 11,250 11,250 21, , , ,918 2,740 3, ,000 9,000 9,000 9,000 21, , , ,918 2,740 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. Multi F Outdoor Unit Data OUTDOOR UNIT 35

36 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 29: LMU36CHV with Ducted Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Ducted Indoor ,350 9, , , , ,426 2,037 2, ,350 12, , , , ,607 2,295 3, ,467 12, , , , ,759 2,512 3, Two ,350 18, , , , ,932 2,761 3, ,467 18, , , , ,084 2,978 4, * ,273 24, , , , ,179 3,112 4, ,000 17, , , , ,179 3,112 4, * ,333 22, , , , ,179 3,112 4, Three Four ,350 9,350 9,350-16, , , ,846 2,637 3, ,350 9,350 12,467-18, , , ,961 2,802 3, ,273 12,364 12,364-20, , , ,048 2,926 4, ,500 8,500 17,000-20, , , ,048 2,926 4, ,333 11,333 11,333-20, , , ,048 2,926 4, ,846 10,462 15,692-20, , , ,048 2,926 4, ,714 9,714 14,571-20, , , ,048 2,926 4, ,800 13,600 13,600-20, , , ,048 2,926 4, ,500 12,750 12,750-20, , , ,048 2,926 4, ,500 8,500 8,500 8,500 20, , , ,983 2,833 3, ,846 7,846 7,846 10,462 20, , , ,983 2,833 3, ,286 7,286 9,714 9,714 20, , , ,983 2,833 3, ,800 6,800 6,800 13,600 20, , , ,983 2,833 3, ,800 9,067 9,067 9,067 20, , , ,983 2,833 3, ,375 6,375 8,500 12,750 20, , , ,983 2,833 3, ,500 8,500 8,500 8,500 20, , , ,983 2,833 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *A 1.3 multiplier is necessary for the calculation of total combination. 36 OUTDOOR UNIT

37 PERFORMANCE DATA Rated Heating Combination Tables Table 30: LMU36CHV with Mixed Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU 1 IDU 2 IDU 3 IDU 4 Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Mixed Indoor ,486 9, , , , ,267 1,810 2, ,625 9, , , , ,402 2,003 2, ,486 12, , , , ,459 2,085 2, ,625 12, , , , ,580 2,258 3, ,625 16, , , , ,730 2,471 3, ,833 12, , , , ,730 2,471 3, ,486 19, , , , ,787 2,553 3, ,625 19, , , , ,901 2,715 3, Two ,833 16, , , , ,901 2,715 3, ,833 19, , , , ,050 2,929 4, ,486 25, , , , ,093 2,990 4, ,545 25, , , , ,143 3,061 4, ,909 19, , , , ,143 3,061 4, ,500 17, , , , ,143 3,061 4, ,667 23, , , , ,143 3,061 4, ,462 21, , , , ,143 3,061 4, * ,000 20, , , , ,143 3,061 4, * ,500 17, , , , ,143 3,061 4, Three ,486 7,486 9,625-14, , , ,644 2,349 3, ,486 9,625 9,625-16, , , ,758 2,512 3, ,486 7,486 12,833-16, , , ,787 2,553 3, ,625 9,625 9,625-17, , , ,815 2,593 3, ,486 9,625 12,833-17, , , ,851 2,644 3, ,625 9,625 12,833-19, , , ,929 2,756 3, ,486 9,625 16,042-19, , , ,972 2,817 3, ,486 12,833 12,833-19, , , ,972 2,817 3, ,486 7,486 19,250-20, , , ,015 2,878 4, ,545 9,545 15,909-21, , , ,015 2,878 4, ,545 12,727 12,727-21, , , ,015 2,878 4, ,206 9,265 18,529-21, , , ,015 2,878 4, ,206 12,353 15,441-21, , , ,015 2,878 4, ,750 8,750 17,500-21, , , ,015 2,878 4, ,750 11,667 14,583-21, , , ,015 2,878 4, ,667 11,667 11,667-21, , , ,015 2,878 4, ,622 11,351 17,027-21, , , ,015 2,878 4, ,447 6,447 22,105-21, , , ,015 2,878 4, ,077 10,769 16,154-21, , , ,015 2,878 4, ,077 13,462 13,462-21, , , ,015 2,878 4, ,769 10,769 13,462-21, , , ,015 2,878 4, ,125 7,875 21,000-21, , , ,015 2,878 4, ,125 13,125 15,750-21, , , ,015 2,878 4, * ,500 7,500 20,000-21, , , ,015 2,878 4, ,500 12,500 15,000-21, , , ,015 2,878 4, ,000 10,000 15,000-21, , , ,015 2,878 4, ,000 12,500 12,500-21, , , ,015 2,878 4, * ,698 9,767 19,535-21, , , ,015 2,878 4, ,698 14,651 14,651-21, , , ,015 2,878 4, * ,000 9,333 18,667-21, , , ,015 2,878 4, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The multiplier (1.3) is necessary for the calculation of total combination. Multi F Outdoor Unit Data OUTDOOR UNIT 37

38 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 31: LMU36CHV with Mixed Indoor Rated Heating Combination Table. Indoor Unit Combination No. of (kbtu/h) Room Total Input (W) Indoor IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Rated Maximum (Btu/h) (Btu/h) (Btu/h) (Btu/h) Min. Rated Max. Btu/h kw Btu/h kw Btu/h kw COP HSPF Mixed Indoor ,000 14,000 14,000-21, , , ,015 2,878 4, ,333 11,667 14,000-21, , , ,015 2,878 4, * ,326 11,413 18,261-21, , , ,015 2,878 4, Three * ,563 10,938 17,500-21, , , ,015 2,878 4, * ,750 8,750 17,500-21, , , ,015 2,878 4, ,750 13,125 13,125-21, , , ,015 2,878 4, ,938 10,938 13,125-21, , , ,015 2,878 4, Four ,486 7,486 7,486 9,625 19, , , ,915 2,736 3, ,486 7,486 9,625 9,625 20, , , ,951 2,787 3, ,424 7,424 7,424 12,727 21, , , ,951 2,787 3, ,206 9,265 9,265 9,265 21, , , ,951 2,787 3, ,000 7,000 9,000 12,000 21, , , ,951 2,787 3, ,750 8,750 8,750 8,750 21, , , ,951 2,787 3, ,622 8,514 8,514 11,351 21, , , ,951 2,787 3, ,447 6,447 8,289 13,816 21, , , ,951 2,787 3, ,447 6,447 11,053 11,053 21, , , ,951 2,787 3, ,282 6,282 6,282 16,154 21, , , ,951 2,787 3, ,077 8,077 8,077 10,769 21, , , ,951 2,787 3, ,125 7,875 7,875 13,125 21, , , ,951 2,787 3, ,125 7,875 10,500 10,500 21, , , ,951 2,787 3, ,976 5,976 7,683 15,366 21, , , ,951 2,787 3, ,976 5,976 10,244 12,805 21, , , ,951 2,787 3, ,500 7,500 7,500 12,500 21, , , ,951 2,787 3, ,500 7,500 10,000 10,000 21, , , ,951 2,787 3, ,698 7,326 7,326 14,651 21, , , ,951 2,787 3, ,698 7,326 9,767 12,209 21, , , ,951 2,787 3, ,698 9,767 9,767 9,767 21, , , ,951 2,787 3, ,568 5,568 9,545 14,318 21, , , ,951 2,787 3, * 45 5,444 5,444 5,444 18,667 21, , , ,951 2,787 3, ,000 7,000 7,000 14,000 21, , , ,951 2,787 3, ,000 7,000 9,333 11,667 21, , , ,951 2,787 3, ,000 9,333 9,333 9,333 21, , , ,951 2,787 3, ,326 6,848 9,130 13,696 21, , , ,951 2,787 3, ,326 6,848 11,413 11,413 21, , , ,951 2,787 3, ,326 9,130 9,130 11,413 21, , , ,951 2,787 3, * 47 5,213 5,213 6,702 17,872 21, , , ,951 2,787 3, ,213 5,213 11,170 13,404 21, , , ,951 2,787 3, ,563 6,563 8,750 13,125 21, , , ,951 2,787 3, ,563 6,563 10,938 10,938 21, , , ,951 2,787 3, ,750 8,750 8,750 8,750 21, , , ,951 2,787 3, as rated: 0 ft. above sea level with 25 ft. of refrigerant piping. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 At least two indoor units should be connected. *The indoor unit must be non ducted type. 38 OUTDOOR UNIT

39 PERFORMANCE DATA Cooling Tables Table 32: LMU18CHV Cooling Table Non-Ducted Indoor. Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 39

40 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 33: LMU18CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 40 OUTDOOR UNIT

41 PERFORMANCE DATA Cooling Tables Table 34: LMU18CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 41

42 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 35: LMU18CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 42 OUTDOOR UNIT

43 PERFORMANCE DATA Cooling Tables Table 36: LMU18CHV Cooling Table Ducted Indoor. Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 43

44 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 37: LMU18CHV Cooling Table Ducted (continued) and Mixed Indoor. Two (2) Ducted Indoor Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 44 OUTDOOR UNIT

45 PERFORMANCE DATA Cooling Tables Table 38: LMU18CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 45

46 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 39: LMU18CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 46 OUTDOOR UNIT

47 PERFORMANCE DATA Cooling Tables Table 40: LMU18CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 47

48 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 41: LMU24CHV Cooling Table Non-Ducted Indoor. Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 48 OUTDOOR UNIT

49 PERFORMANCE DATA Cooling Tables Table 42: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 49

50 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 43: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 50 OUTDOOR UNIT

51 PERFORMANCE DATA Cooling Tables Table 44: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 51

52 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 45: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 52 OUTDOOR UNIT

53 PERFORMANCE DATA Cooling Tables Table 46: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 53

54 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 47: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 54 OUTDOOR UNIT

55 PERFORMANCE DATA Cooling Tables Table 48: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 55

56 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 49: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 56 OUTDOOR UNIT

57 PERFORMANCE DATA Cooling Tables Table 50: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 57

58 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 51: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 58 OUTDOOR UNIT

59 PERFORMANCE DATA Cooling Tables Table 52: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 59

60 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 53: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 60 OUTDOOR UNIT

61 PERFORMANCE DATA Cooling Tables Table 54: LMU24CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 61

62 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 55: LMU24CHV Cooling Table Non-Ducted (continued) and Ducted Indoor. Three (3) Non-Ducted Indoor Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 62 OUTDOOR UNIT

63 PERFORMANCE DATA Cooling Tables Table 56: LMU24CHV Cooling Table Ducted Indoor. Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 63

64 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 57: LMU24CHV Cooling Table Ducted Indoor. Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 64 OUTDOOR UNIT

65 PERFORMANCE DATA Cooling Tables Table 58: LMU24CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 65

66 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 59: LMU24CHV Cooling Table Ducted (continued) and Mixed Indoor. Three (3) Ducted Indoor Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 66 OUTDOOR UNIT

67 PERFORMANCE DATA Cooling Tables Table 60: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 67

68 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 61: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 68 OUTDOOR UNIT

69 PERFORMANCE DATA Cooling Tables Table 62: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 69

70 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 63: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 70 OUTDOOR UNIT

71 PERFORMANCE DATA Cooling Tables Table 64: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 71

72 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 65: LMU24CHV Cooling Table Mixed Indoor. Two (2) Mixed Indoor Three (3) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. 72 OUTDOOR UNIT

73 PERFORMANCE DATA Cooling Tables Table 66: LMU24CHV Cooling Table Mixed Indoor. Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 73

74 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 67: LMU24CHV Cooling Table Mixed Indoor. Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 74 OUTDOOR UNIT

75 PERFORMANCE DATA Cooling Tables Table 68: LMU24CHV Cooling Table Mixed Indoor. Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 75

76 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 69: LMU24CHV Cooling Table Mixed Indoor. Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 76 OUTDOOR UNIT

77 PERFORMANCE DATA Cooling Tables Table 70: LMU24CHV Cooling Table Mixed Indoor. Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 77

78 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 71: LMU36CHV Cooling Table Non-Ducted Indoor. Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 78 OUTDOOR UNIT

79 PERFORMANCE DATA Cooling Tables Table 72: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 79

80 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 73: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 80 OUTDOOR UNIT

81 PERFORMANCE DATA Cooling Tables Table 74: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 81

82 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 75: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 82 OUTDOOR UNIT

83 PERFORMANCE DATA Cooling Tables Table 76: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 83

84 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 77: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 84 OUTDOOR UNIT

85 PERFORMANCE DATA Cooling Tables Table 78: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 85

86 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 79: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 86 OUTDOOR UNIT

87 PERFORMANCE DATA Cooling Tables Table 80: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 87

88 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 81: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 88 OUTDOOR UNIT

89 PERFORMANCE DATA Cooling Tables Table 82: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 89

90 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 83: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 90 OUTDOOR UNIT

91 PERFORMANCE DATA Cooling Tables Table 84: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 91

92 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 85: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 92 OUTDOOR UNIT

93 PERFORMANCE DATA Cooling Tables Table 86: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 93

94 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 87: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 94 OUTDOOR UNIT

95 PERFORMANCE DATA Cooling Tables Table 88: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 95

96 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 89: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 96 OUTDOOR UNIT

97 PERFORMANCE DATA Cooling Tables Table 90: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 97

98 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 91: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 98 OUTDOOR UNIT

99 PERFORMANCE DATA Cooling Tables Table 92: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 99

100 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 93: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 100 OUTDOOR UNIT

101 PERFORMANCE DATA Cooling Tables Table 94: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 101

102 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 95: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 102 OUTDOOR UNIT

103 PERFORMANCE DATA Cooling Tables Table 96: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 103

104 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 97: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 104 OUTDOOR UNIT

105 PERFORMANCE DATA Cooling Tables Table 98: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 105

106 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 99: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 106 OUTDOOR UNIT

107 PERFORMANCE DATA Cooling Tables Table 100: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 107

108 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 101: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 108 OUTDOOR UNIT

109 PERFORMANCE DATA Cooling Tables Table 102: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 109

110 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 103: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 110 OUTDOOR UNIT

111 PERFORMANCE DATA Cooling Tables Table 104: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 111

112 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 105: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 112 OUTDOOR UNIT

113 PERFORMANCE DATA Cooling Tables Table 106: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 113

114 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 107: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 114 OUTDOOR UNIT

115 PERFORMANCE DATA Cooling Tables Table 108: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 115

116 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 109: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 116 OUTDOOR UNIT

117 PERFORMANCE DATA Cooling Tables Table 110: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 117

118 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 111: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 118 OUTDOOR UNIT

119 PERFORMANCE DATA Cooling Tables Table 112: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 119

120 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 113: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 120 OUTDOOR UNIT

121 PERFORMANCE DATA Cooling Tables Table 114: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 121

122 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 115: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 122 OUTDOOR UNIT

123 PERFORMANCE DATA Cooling Tables Table 116: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 123

124 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 117: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 124 OUTDOOR UNIT

125 PERFORMANCE DATA Cooling Tables Table 118: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 125

126 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 119: LMU36CHV Cooling Table Non-Ducted Indoor (continued). Four (4) Non-Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 126 OUTDOOR UNIT

127 PERFORMANCE DATA Cooling Tables Table 120: LMU36CHV Cooling Table Ducted Indoor Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 127

128 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 121: LMU36CHV Cooling Table Ducted Indoor (continued) Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 128 OUTDOOR UNIT

129 PERFORMANCE DATA Cooling Tables Table 122: LMU36CHV Cooling Table Ducted Indoor (continued) Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 129

130 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 123: LMU36CHV Cooling Table Ducted Indoor (continued). Two (2) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 130 OUTDOOR UNIT

131 PERFORMANCE DATA Cooling Tables Table 124: LMU36CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 131

132 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 125: LMU36CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 132 OUTDOOR UNIT

133 PERFORMANCE DATA Cooling Tables Table 126: LMU36CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 133

134 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 127: LMU36CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 134 OUTDOOR UNIT

135 PERFORMANCE DATA Cooling Tables Table 128: LMU36CHV Cooling Table Ducted Indoor (continued). Three (3) Ducted Indoor Four (4) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 135

136 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 129: LMU36CHV Cooling Table Ducted Indoor (continued). Four (4) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 136 OUTDOOR UNIT

137 PERFORMANCE DATA Cooling Tables Table 130: LMU36CHV Cooling Table Ducted Indoor (continued). Four (4) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 137

138 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 131: LMU36CHV Cooling Table Ducted Indoor (continued). Four (4) Ducted Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 138 OUTDOOR UNIT

139 PERFORMANCE DATA Cooling Tables Table 132: LMU36CHV Cooling Table Mixed Indoor Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 139

140 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 133: LMU36CHV Cooling Table Mixed Indoor Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 140 OUTDOOR UNIT

141 PERFORMANCE DATA Cooling Tables Table 134: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 141

142 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 135: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 142 OUTDOOR UNIT

143 PERFORMANCE DATA Cooling Tables Table 136: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 143

144 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 137: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 144 OUTDOOR UNIT

145 PERFORMANCE DATA Cooling Tables Table 138: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 145

146 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 139: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 146 OUTDOOR UNIT

147 PERFORMANCE DATA Cooling Tables Table 140: LMU36CHV Cooling Table Mixed Indoor (continued). Two (2) Mixed Indoor Combination * 24* + 24* Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 147

148 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 141: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 148 OUTDOOR UNIT

149 PERFORMANCE DATA Cooling Tables Table 142: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 149

150 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 143: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 150 OUTDOOR UNIT

151 PERFORMANCE DATA Cooling Tables Table 144: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 151

152 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 145: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 152 OUTDOOR UNIT

153 PERFORMANCE DATA Cooling Tables Table 146: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 153

154 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 147: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 154 OUTDOOR UNIT

155 PERFORMANCE DATA Cooling Tables Table 148: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 155

156 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 149: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 156 OUTDOOR UNIT

157 PERFORMANCE DATA Cooling Tables Table 150: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 157

158 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 151: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 158 OUTDOOR UNIT

159 PERFORMANCE DATA Cooling Tables Table 152: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 159

160 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 153: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 160 OUTDOOR UNIT

161 PERFORMANCE DATA Cooling Tables Table 154: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 161

162 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 155: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. 162 OUTDOOR UNIT

163 PERFORMANCE DATA Cooling Tables Table 156: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 163

164 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 157: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination * * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. 164 OUTDOOR UNIT

165 PERFORMANCE DATA Cooling Tables Table 158: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 165

166 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 159: LMU36CHV Cooling Table Mixed Indoor (continued). Three (3) Mixed Indoor Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 166 OUTDOOR UNIT

167 PERFORMANCE DATA Cooling Tables Table 160: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 167

168 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 161: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 168 OUTDOOR UNIT

169 PERFORMANCE DATA Cooling Tables Table 162: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 169

170 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 163: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 170 OUTDOOR UNIT

171 PERFORMANCE DATA Cooling Tables Table 164: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 171

172 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 165: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 172 OUTDOOR UNIT

173 PERFORMANCE DATA Cooling Tables Table 166: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 173

174 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 167: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 174 OUTDOOR UNIT

175 PERFORMANCE DATA Cooling Tables Table 168: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 175

176 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 169: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 176 OUTDOOR UNIT

177 PERFORMANCE DATA Cooling Tables Table 170: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination * Temp. ( F DB) Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 177

178 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 171: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 178 OUTDOOR UNIT

179 PERFORMANCE DATA Cooling Tables Table 172: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 179

180 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 173: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination * Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. *The indoor unit must be non-ducted type. 180 OUTDOOR UNIT

181 PERFORMANCE DATA Cooling Tables Table 174: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F Outdoor Unit Data OUTDOOR UNIT 181

182 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 175: LMU36CHV Cooling Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 182 OUTDOOR UNIT

183 PERFORMANCE DATA Heating Tables Table 176: LMU18CHV Heating Table Non-Ducted Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 183

184 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 177: LMU18CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 184 OUTDOOR UNIT

185 PERFORMANCE DATA Heating Tables Table 178: LMU18CHV Heating Table Non-Ducted (continued) and Ducted Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 185

186 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 179: LMU18CHV Heating Table Ducted (continued) and Mixed ndoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 186 OUTDOOR UNIT

187 PERFORMANCE DATA Heating Tables Table 180: LMU18CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 187

188 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 181: LMU18CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 188 OUTDOOR UNIT

189 PERFORMANCE DATA Heating Tables Table 182: LMU24CHV Heating Table Non-Ducted. Two (2) Non-Ducted Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 189

190 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 183: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 190 OUTDOOR UNIT

191 PERFORMANCE DATA Heating Tables Table 184: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 191

192 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 185: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 192 OUTDOOR UNIT

193 PERFORMANCE DATA Heating Tables Table 186: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 193

194 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 187: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 194 OUTDOOR UNIT

195 PERFORMANCE DATA Heating Tables Table 188: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 195

196 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 189: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 196 OUTDOOR UNIT

197 PERFORMANCE DATA Heating Tables Table 190: LMU24CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 197

198 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 191: LMU24CHV Heating Table Non-Ducted (continued) and Ducted Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 198 OUTDOOR UNIT

199 PERFORMANCE DATA Heating Tables Table 192: LMU24CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 199

200 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 193: LMU24CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Three (3) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 200 OUTDOOR UNIT

201 PERFORMANCE DATA Heating Tables Table 194: LMU24CHV Heating Table Ducted (continued) and Mixed Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Ducted Indoor Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 201

202 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 195: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 202 OUTDOOR UNIT

203 PERFORMANCE DATA Heating Tables Table 196: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 203

204 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 197: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 204 OUTDOOR UNIT

205 PERFORMANCE DATA Heating Tables Table 198: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Three (3) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 205

206 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 199: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 206 OUTDOOR UNIT

207 PERFORMANCE DATA Heating Tables Table 200: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 207

208 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 201: LMU24CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 208 OUTDOOR UNIT

209 PERFORMANCE DATA Heating Tables Table 202: LMU36CHV Heating Table Non-Ducted Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 209

210 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 203: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 210 OUTDOOR UNIT

211 PERFORMANCE DATA Heating Tables Table 204: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 211

212 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 205: LMU36CHV Heating Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 212 OUTDOOR UNIT

213 PERFORMANCE DATA Heating Tables Table 206: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 213

214 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 207: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 214 OUTDOOR UNIT

215 PERFORMANCE DATA Heating Tables Table 208: LMU36CHV Heating Table Non-Ducted Indoor (continued). Two (2) Non-Ducted Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 215

216 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 209: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 216 OUTDOOR UNIT

217 PERFORMANCE DATA Heating Tables Table 210: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 217

218 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 211: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 218 OUTDOOR UNIT

219 PERFORMANCE DATA Heating Tables Table 212: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 219

220 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 213: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 220 OUTDOOR UNIT

221 PERFORMANCE DATA Heating Tables Table 214: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 221

222 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 215: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Three (3) Non-Ducted Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 222 OUTDOOR UNIT

223 PERFORMANCE DATA Heating Tables Table 216: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 223

224 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 217: LMU36CHV Heating Table Non-Ducted Indoor Unit (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 224 OUTDOOR UNIT

225 PERFORMANCE DATA Heating Tables Table 218: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 225

226 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 219: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 226 OUTDOOR UNIT

227 PERFORMANCE DATA Heating Tables Table 220: LMU36CHV Heating Table Non-Ducted Indoor (continued). Three (3) Non-Ducted Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 227

228 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 221: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 228 OUTDOOR UNIT

229 PERFORMANCE DATA Heating Tables Table 222: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Non-Ducted Indoor Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 229

230 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 223: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 230 OUTDOOR UNIT

231 PERFORMANCE DATA Heating Tables Table 224: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 231

232 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 225: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 232 OUTDOOR UNIT

233 PERFORMANCE DATA Heating Tables Table 226: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 233

234 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 227: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 234 OUTDOOR UNIT

235 PERFORMANCE DATA Heating Tables Table 228: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 235

236 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 229: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 236 OUTDOOR UNIT

237 PERFORMANCE DATA Heating Tables Table 230: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 237

238 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 231: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 238 OUTDOOR UNIT

239 PERFORMANCE DATA Heating Tables Table 232: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 239

240 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 233: LMU36CHV Heating Table Non-Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 240 OUTDOOR UNIT

241 PERFORMANCE DATA Heating Tables Table 234: LMU36CHV Heating Table Non-Ducted (continued) and Ducted Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Non-Ducted Indoor Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 241

242 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 235: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 242 OUTDOOR UNIT

243 PERFORMANCE DATA Heating Tables Table 236: LMU369HV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 243

244 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 237: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Ducted Indoor Three (3) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 244 OUTDOOR UNIT

245 PERFORMANCE DATA Heating Tables Table 238: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 245

246 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 239: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 246 OUTDOOR UNIT

247 PERFORMANCE DATA Heating Tables Table 240: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Ducted Indoor Four (4) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 247

248 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 241: LMU36CHV Heating Table Ducted Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Ducted Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 248 OUTDOOR UNIT

249 PERFORMANCE DATA Heating Tables Table 242: LMU36CHV Heating Table Ducted (continued) and Mixed Indoor. Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Ducted Indoor Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 249

250 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 243: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 250 OUTDOOR UNIT

251 PERFORMANCE DATA Heating Tables Table 244: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 251

252 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 245: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 252 OUTDOOR UNIT

253 PERFORMANCE DATA Heating Tables Table 246: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 253

254 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 247: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 254 OUTDOOR UNIT

255 PERFORMANCE DATA Heating Tables Table 248: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Two (2) Mixed Indoor Three (3) Mixed Indoor * * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 255

256 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 249: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 256 OUTDOOR UNIT

257 PERFORMANCE DATA Heating Tables Table 250: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 257

258 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 251: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 258 OUTDOOR UNIT

259 PERFORMANCE DATA Heating Tables Table 252: LMU36CHV Heating Table Mixed Indoor (continued). Three (3) Mixed Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 259

260 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 253: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 260 OUTDOOR UNIT

261 PERFORMANCE DATA Heating Tables Table 254: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 261

262 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 255: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 262 OUTDOOR UNIT

263 PERFORMANCE DATA Heating Tables Table 256: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 263

264 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 257: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. 264 OUTDOOR UNIT

265 PERFORMANCE DATA Heating Tables Table 258: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 265

266 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 259: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor * * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. 266 OUTDOOR UNIT

267 PERFORMANCE DATA Heating Tables Table 260: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Three (3) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 267

268 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 261: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 268 OUTDOOR UNIT

269 PERFORMANCE DATA Heating Tables Table 262: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 269

270 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 263: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 270 OUTDOOR UNIT

271 PERFORMANCE DATA Heating Tables Table 264: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 271

272 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 265: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 272 OUTDOOR UNIT

273 PERFORMANCE DATA Heating Tables Table 266: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F Outdoor Unit Data OUTDOOR UNIT 273

274 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 267: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 274 OUTDOOR UNIT

275 PERFORMANCE DATA Heating Tables Table 268: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 275

276 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 269: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 276 OUTDOOR UNIT

277 PERFORMANCE DATA Heating Tables Table 270: LMU36CHV Heating Table Mixed Indoor (continued). Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Four (4) Mixed Indoor * Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). *The indoor unit must be non-ducted type. Multi F Outdoor Unit Data OUTDOOR UNIT 277

278 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 271: LMU36CHV Heating Table Mixed Indoor (continued). Four (4) Mixed Indoor Combination Temp. Indoor Air Temp. F DB F F DB WB TC PI TC PI TC PI TC PI TC PI TC PI Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 278 OUTDOOR UNIT

279 OUTDOOR UNIT Electrical and Acoustic Data Electrical Data Table 272: Electrical Data. Nominal Tons Unit Model No. Hertz Voltage Voltage Range (Min. to Max.) MCA MOP Compressor Quantity Compressor Motor RLA Outdoor Fan Motor Indoor Fan Motor kw FLA FLA 1.5 LMU18CHV LMU24CHV LMU36CHV Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. RLA = Rated Load Amps. Acoustic Data Figure 9: Acoustic Measurement Location. 3.3 feet Microphone Table 273: Sound Pressure Levels (db[a]). Model No. Sound Pressure Level (db[a]) Cooling Heating LMU18CHV LMU24CHV LMU36CHV MCA = Minimum Circuit Ampacity. Maximum Overcurrent Protection (MOP) is calculated as follows: (Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down to the nearest standard fuse size. 4.9 feet Indoor Fan Motor (FLA) is based on the maximum combination of indoor units. The max combination for each outdoor unit is: - 18,000 ODU (LMU18CHV): 12,000 IDU x 2-24,000 ODU (LMU24CHV): 12,000 IDU x 2 + 9,000 IDU x 1-36,000 ODU (LMU36CHV): 12,000 IDU x 4 Measurement taken 4.9 above finished floor, and at a distance of 3.3 from face of unit. Measurements taken with no attenuation and units operating at full load normal operating condition. Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. Sound level may be increased in static pressure mode or if air guide is used. Sound pressure levels are measured in db(a)±3. Tested in anechoic chamber per ISO Standard Multi F Outdoor Unit Data Figure 10: Sound Pressure Level Diagrams. LMU18CHV LMU24CHV LMU36CHV Octave Band Sound Pressure Level (0dB = 20μPa) Approximate Hearing Threshold Cooling Heating NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC Octave Band Center Frequency (Hz) Octave Band Sound Pressure Level (0dB = 20μPa) Cooling Heating NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC Approximate NC-20 Hearing Threshold NC Octave Band Center Frequency (Hz) Octave Band Sound Pressure Level (0dB = 20μPa) Cooling Heating NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC Approximate NC-20 Hearing Threshold NC Octave Band Center Frequency (Hz) OUTDOOR UNIT 279

280 OUTDOOR UNIT Refrigerant Flow Diagram Figure 11: LMU18CHV Refrigerant Flow Diagram. Outdoor Unit Inlet Air Temperature Thermistor Multi F and Multi F MAX Heat Pump System Engineering Manual ROOM A ROOM B ROOM A ROOM B : Cooling : Heating Flare Connection Electronic Expansion Valve Pressure Sensor Main SVC V/V Flare Connection Main SVC V/V Suction Temperature Thermistor Condenser Outlet Temperature Thermistor Condensing Temperature Thermistor Strainer Discharge Temperature Thermistor Inverter Compressor M Table 274: LMU18CHV Thermistor Details. Description Condenser Outlet Temperature Thermistor Condensing Temperature Thermistor Inlet Air Temperature Thermistor Discharge Temperature Thermistor Suction Temperature Thermistor Pressure Sensor PCB Connector CN_C/PIPE CN_MID CN_AIR CN_DISCHARGE CN_SUCTION CN_H/PRESS 280 OUTDOOR UNIT

281 OUTDOOR UNIT Refrigerant Flow Diagram Figure 12: LMU24CHV Refrigerant Flow Diagram. Outdoor Unit Inlet Air Temperature Thermistor Flare Connection Condensing Temperature Thermistor Electronic Expansion Valve Strainer M ROOM A ROOM B ROOM C ROOM A ROOM B ROOM C Pressure Sensor Main SVC V/V Flare Connection Main SVC V/V Suction Temperature Thermistor Condenser Outlet Temperature Thermistor Discharge Temperature Thermistor Multi F Outdoor Unit Data Inverter Compressor : Cooling : Heating Table 275: LMU24CHV Thermistor Details. Description Condenser Outlet Temperature Thermistor Condensing Temperature Thermistor Inlet Air Temperature Thermistor Discharge Temperature Thermistor Suction Temperature Thermistor Pressure Sensor PCB Connector CN_C/PIPE CN_MID CN_AIR CN_DISCHARGE CN_SUCTION CN_H/PRESS OUTDOOR UNIT 281

282 OUTDOOR UNIT Refrigerant Flow Diagram Figure 13: LMU36CHV Refrigerant Flow Diagram. Outdoor Unit Flare Connection Condenser Out Temperature Thermistor Inlet Air Temperature Thermistor Multi F and Multi F MAX Heat Pump System Engineering Manual ROOM A ROOM B ROOM C ROOM D ROOM A ROOM B ROOM C ROOM D : Cooling : Heating Electronic Expansion Valve Main SVC V/V Pressure Sensor Main SVC V/V Flare Connection Suction Temperature Thermistor Accumulator Condensing Temperature Thermistor Strainer Discharge Temperature Thermistor Inverter Compressor M Table 276: LMU36CHV Thermistor Details. Description Condensing Temperature Thermistor Condenser Outlet Temperature Thermistor Inlet Air Temperature Thermistor Discharge Temperature Thermistor Suction Temperature Thermistor Pressure Sensor PCB Connector CN_TH4 CN_TH2 CN_TH3 CN_TH1 282 OUTDOOR UNIT

283 Multi F Outdoor Unit Data OUTDOOR UNIT Wiring Diagram Figure 14: LMU18CHV Wiring Diagram. OUTDOOR UNIT 283

284 Multi F and Multi F MAX Heat Pump System Engineering Manual OUTDOOR UNIT Wiring Diagram Figure 15: LMU24CHV Wiring Diagram. 284 OUTDOOR UNIT

285 Multi F Outdoor Unit Data OUTDOOR UNIT Wiring Diagram Figure 16: LMU36CHV Wiring Diagram. OUTDOOR UNIT 285

286 OUTDOOR UNIT Operation Range Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 17: Cooling and Heating Operation Ranges. Outdoor Temperature ( F DB) Cooling Continuous Operation Indoor Temperature ( F WB) Outdoor Temperature ( F WB) Warming up Operation Heating Continuous Operation Indoor Temperature ( F DB) Cooling operation range can extend down to -4 F outdoor temperature if Low Ambient Kit is installed (sold separately). 286 OUTDOOR UNIT

287 MAX OUTDOOR UNIT DATA Product Features and Benefits on page 288 Mechanical Specifications on page 289 General Data on page 290 Dimensions on page 292 Rated Cooling Combination Tables on page 293 Rated Heating Combination Tables on page 296 Cooling Tables on page 299 Heating Tables on page 316 Electrical Data on page 327 Acoustic Data on page 327 Refrigerant Flow Diagrams on page 328 Wiring Diagrams on page 329 Operation Range on page 330

288 MAX OUTDOOR UNIT Features and Benefits Multi F MAX inverter-driven heat pump systems can operate up to eight indoor units, providing cooling or heating for an entire home and zoning capabilities. Compact refrigerant pipes work in tandem with wiring to link the outdoor unit with all indoor units through a single or pair of branch distribution (BD) unit(s). Most indoor units include its own remote control, allowing the user to set the temperature individually in different rooms. The indoor units are available in a variety of capacities and styles, including Art Cool Mirror and Gallery Wall Mount, Standard Wall Mount, Four-Way Ceiling Cassette, Horizontal Ceiling Concealed Duct, and Vertical-Horizontal Air Handling models. Multi F and Multi F MAX Heat Pump System Engineering Manual Features Advanced climate control for up to eight (8) zones Inverter (Variable speed compressor) DC inverter technology load matches to reduce power consumption Low ambient operation to 14ºF (DB, Cooling) Optional low ambient baffle kit allows cooling operation down to -4ºF (DB) Heating operation down to -4ºF (WB) Defrost Benefits Refrigerant piping lengths allow for extra design flexibility in indoor unit installation Easy installation: Little to no ductwork required; most indoor units can mount on any wall Indoor unit and outdoor unit dimensions ensure space saving convenience All-season use heat pump models have both cooling and heating capabilities Figure 18: Multi F MAX Heat Pump Inverter System Mix and match for 24,000-73,000 Btu/h. Restart delay (three [3] minutes) Self diagnosis Soft start Auto operation / auto restart operation Gold Fin anti-corrosion 288 MAX OUTDOOR UNIT

289 MAX SYSTEMS Mechanical Specifications Multi F MAX Heat Pump Condensing General A Multi F MAX multi-zone system is comprised of one heat pump outdoor unit connected up to eight indoor units through a branch distribution unit (BD) using a single refrigerant piping circuit, and includes integrated controls supplied by LG. Factory-designed and supplied Y-branches may be used as well. The outdoor unit is internally assembled, wired, and piped from the factory; all LG components are manufactured in a facility registered to ISO 9001 and ISO 14001, set by the International Organization for Standardization (ISO). The LG Multi F MAX multi-zone heat pump system components comply with Underwriters Laboratories (UL) 1995 Heating and Cooling Equipment Standard for Safety, and bear the Electrical Testing Laboratories (ETL) mark. The units are certified to AHRI 210 / 240. Temperature Ranges The heat pump outdoor units are capable of operating in cooling mode from 14 F to 118 F ambient dry bulb (installing an optional Low Ambient Wind Baffle Kit will allow operation down to -4 F in cooling mode for all Multi F systems). The heat pump outdoor units are capable of operating in heating mode from -4 F to +64 F ambient wet bulb without additional low ambient controls. Frame Multi F MAX condensing unit case is constructed from pre-coated metal that has been tested in accordance with ASTM B-117 salt spray procedure for a minimum of 1,000 hours. Case has a removable front panel to allow access to major components and control devices, and legs to secure the unit during installation. Refrigerant System Multi F MAX systems have a single refrigerant circuit field piped with a manufacturer-supplied BD unit(s) and Y-branches (if applicable) to multiple (ducted, non-ducted or mixed) indoor units to effectively and efficiently control the heating or cooling operation of the multi zone system. All refrigerant lines from the outdoor unit to the BD unit(s) and from the BD unit(s) to indoor units are field-installed and must be insulated separately. Multi F MAX systems use R410A refrigerant. The outdoor units are equipped with a refrigerant strainer, check valves, oil separator, accumulator, four-way reversing valve, electronic expansion valve(s) (EEV), high side and low side refrigerant charging ports, and a service port. The outdoor unit also includes sensors for suction temperature, discharge temperature, high-pressure, low-pressure, heat exchanger temperature, and outdoor temperature conditions. Refrigeration Oil Control The outdoor unit has an oil separator to separate oil mixed with the refrigerant gas during compression and return oil to the compressor. The outdoor unit also has an oil injection mechanism to ensure a consistent film of oil on all moving compressor parts at low speed. Figure 19: Multi F MAX LMU540HV Outdoor Unit. Compressor Multi F condensing units are equipped with one hermetically sealed, digitally controlled, inverter driven twin-rotary compressor that includes Teflon coated bearings. The inverter motor is capable of providing a modulation range of 20Hz to 100Hz with control in 1Hz increments. The compressor is protected with phase-reversal protection, uses a factory-charge of Polyvinyl Ether (PVE) oil, and is mounted to avoid the transmission of vibration. Compressor in the Multi F MAX outdoor unit is equipped with a hot gas bypass valve. Fan and Motors The Multi F MAX outdoor unit includes two direct drive variable speed propeller fans with Brushless Digitally Controlled (BLDC) motor with a horizontal air discharge. Fan blades are statically and dynamically balanced propeller fans made of durable Acrylonitrile Butadiene Styrene (ABS) plastic, and include a raised fan guard to limit contact with moving parts. The motors have inherent overload protection, permanently lubricated bearings, and a maximum speed up to 950 rpm. Multi F MAX outdoor unit has a horizontal discharge airflow. Outdoor Unit Coil The outdoor unit coils are factory-built of aluminum fins mechanically bonded on copper tubing. Coils have a minimum of two rows, a minimum of 14 fins per inch, and have been factory pressure-tested. Coil fins also have a factory applied corrosion-resistant GoldFin material with hydrophilic coating that has been tested in accordance with ASTM B-117 salt spray test procedure for a minimum of 1,000 hours. Electrical Multi F MAX outdoor unit shall be 208/230V, 1 phase, 60Hz electrical power capable of operating within ±10% of the rated voltage. Controls Factory installed microprocessor controls in the outdoor unit, BD unit(s), and indoor units shall perform functions to efficiently operate the multi zone system. System wiring must be installed in a tree configuration from outdoor unit to BD unit(s) to indoor units through four conductor power/transmission cable. The system is capable of performing continuous operation, even when power is turned off to an individual indoor unit. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 289

290 MAX OUTDOOR UNIT General Data Multi F and Multi F MAX Heat Pump System Engineering Manual Table 277: Multi F MAX Outdoor Unit General Data. Model Number LMU540HV Rated Cooling (Btu/h) 1 52,500 Rated Heating (Btu/h) 1 58,000 Operating Range Cooling ( F DB) Heating ( F WB) Compressor Inverter Quantity Twin Rotary x 1 Oil/Type FVC68D Fan (Side Discharge) Type Propeller Motor Output (W) x Qty x 2 Motor/Drive Brushless Digitally Controlled/Direct Maximum Air Volume (CFM) 2,119 x 2 Unit Data Refrigerant Type R410A Refrigerant Control/Location EEV / Outdoor Unit, Branch Distribution Unit Min. Number Indoor /System 2 2 Max. Number Indoor /System 2 8 Maximum Allowable Total Indoor Unit Connected (Btu/h) 73,000 Sound Pressure ±3 db(a) 3 (Cooling / Heating) 54 / 56 Net Unit Weight (lbs.) 214 Shipping Weight (lbs.) 236 Power Wiring / Communication Cables 4 (No. x AWG) 4 x 16 Heat Exchanger Material and Fin Coating Copper Tube / Aluminum Fin and GoldFin /Hydrophilic Rows/Columns/Fins per inch x Qty. (2 x 32 x 14) x 2 Piping Liquid Line Connection (in., OD) x Qty. 3/8 x 1 Vapor Line Connection (in., OD) x Qty. 3/4 x 1 Factory Charge lbs. of R410A 9.7 Piping Lengths Maximum Total System Piping (ft.) Maximum Main Pipe Length (Outdoor Unit to Branch Distribution Unit [ft.]) Total Branch Piping (Branch Distribution to all Indoor [ft.]) Maximum Branch Pipe Length (Length between each BDU and IDU [ft.]) 49.2 Maximum Outdoor Unit to Indoor Unit Pipe Length (ft.) Piping Length (No Additional Refrigerant [ft.]; approx. 16 ft. of Main Piping ft. of Branch Piping) Maximum Elevation between Outdoor Unit and Indoor Unit (ft.) 98.4 Maximum Elevation between Indoor Unit and Indoor Unit (ft.) 49.2 Maximum Elevation between Branch Distribution Unit and Indoor Unit (ft.) 32.8 Maximum Elevation between Branch Distribution Unit and Branch Distribution Unit (ft.) Rated capacity applied with non-ducted indoor units, and is rated 0 ft. above sea level with a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between %. Rated cooling capacity obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Rated heating capacity obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 2 At least one Branch Distribution Unit is required for system operation; a maximum of two can be installed per outdoor unit with use of Y-branch accessory (PMBL5620). At least two indoor units should be connected. For allocated capacity information, see the combination tables on pages 131 to Sound pressure levels are tested in an anechoic chamber under ISO Standard These values can increase due to ambient conditions during operation. 4 All power wiring / communication cable to be minimum 16 AWG from the outdoor unit to the BD unit, and 18 AWG from the BD unit to the indoor unit, stranded, shielded, and must comply with applicable local and national codes. For detailed electrical information, please refer to electric characteristics on page Piping lengths are equivalent. 6 Installation of an optional Low Ambient Wind Baffle Kit will allow operation down to -4 F in cooling mode. 290 MAX OUTDOOR UNIT

291 MAX OUTDOOR UNIT General Data Table 278: LMU540HV Efficiency Ratings. 1,2 System Combined With Rated Cooling (Btu/h) EER (95 F) SEER Rated Heating (Btu/h) COP (47 F) HSPF Low Heating (Btu/h) COP (17 F) Non-Ducted Indoor 52, , , Yes LMU540HV Ducted Indoor 51, , , No Mixed Non-Ducted and Ducted Indoor 51, , , No 1 Rated capacity is rated 0 ft. above sea level with Piping Length as Main pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft., and a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between %. Rated cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Rated heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 2 Rated capacity is certified under AHRI Standard 210 / 240. EER, IEER, COP, and HSPF are subject to change. See for the latest values. Energy Star Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 291

292 MAX OUTDOOR UNIT Dimensions Figure 20: LMU540HV External Dimensions. 4-holes for anchor bolts Multi F and Multi F MAX Heat Pump System Engineering Manual 15-3/4 14-3/ / /8 6-1/ /32 6-1/2 6-5/8 19-9/32 No. Part Name 1 Liquid pipe connection 2 Gas pipe connection 3 Air discharge grille 4 Power & transmission connection 4 Supporter 21-1/ / /20 Unit: inch Center of Gravity 292 MAX OUTDOOR UNIT

293 PERFORMANCE DATA Rated Cooling Combination Tables The individual indoor unit capacity can be calculated based on the outdoor unit Rated capacity as follows. 1 Individual Indoor Unit Combination Outdoor Unit Rated Individual Indoor Unit Rated (Qidu [Rated]) (Qidu [Combi]) = (Qodu [Rated]) x Total Unit Rated ( Qidu [Rated]) 1 To calculate the individual IDU capacity based on ODU Corrected capacity, replace (Qodu [Rated]) with (Qodu [Corrected]) where (Qodu [Corrected]) is obtained from the capacity tables referencing design conditions. Table 279: LMU540HV with Non-Ducted Indoor Rated Cooling Combination Table. Cooling Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw EER SEER 24 14, , , ,000 1,550 2, , , , ,168 1,668 2, , , , ,251 1,786 2, , , , ,333 1,905 2, , , , ,517 2,023 2, , , , ,606 2,141 2, , , , ,695 2,259 2, , , , ,855 2,378 3, , , , ,947 2,496 3, , , , ,039 2,614 3, , , , ,131 2,732 3, , , , ,280 2,851 3, , , , ,375 2,969 3, , , , ,470 3,087 3, , , , ,564 3,205 3, , , , ,659 3,324 3, , , , ,753 3,442 3, , , , ,848 3,560 3, , , , ,943 3,678 4, , , , ,037 3,796 4, , , , ,132 3,915 4, , , , ,226 4,033 4, , , , ,321 4,151 4, , , , ,415 4,269 4, , , , ,510 4,388 4, , , , ,605 4,506 4, , , , ,699 4,624 4, , , , ,794 4,742 4, , , , ,888 4,861 5, , , , ,983 4,979 5, , , , ,078 5,097 5, , , , ,102 5,128 5, , , , ,127 5,159 5, , , , ,152 5,190 5, , , , ,176 5,221 5, , , , ,201 5,252 5, , , , ,226 5,282 5, , , , ,251 5,313 5, , , , ,275 5,344 5, , , , ,300 5,375 5, , , , ,325 5,406 5, , , , ,350 5,437 5, , , , ,374 5,468 5, , , , ,399 5,499 5, , , , ,424 5,530 5, , , , ,448 5,561 5, , , , ,473 5,591 5, , , , ,498 5,622 5, , , , ,523 5,653 5, , , , ,547 5,684 5, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 6 At least two indoor units should be connected. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 293

294 PERFORMANCE DATA Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 280: LMU540HV with Ducted Indoor Rated Cooling Combination Table. Cooling Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw EER SEER 24 13, , , ,000 1,550 2, , , , ,168 1,668 2, , , , ,251 1,787 2, , , , ,334 1,905 2, , , , ,518 2,023 2, , , , ,606 2,142 2, , , , ,695 2,260 2, , , , ,855 2,378 3, , , , ,947 2,497 3, , , , ,040 2,615 3, , , , ,132 2,733 3, , , , ,281 2,852 3, , , , ,376 2,970 3, , , , ,471 3,088 3, , , , ,565 3,207 3, , , , ,660 3,325 3, , , , ,755 3,443 3, , , , ,849 3,562 3, , , , ,944 3,680 4, , , , ,039 3,798 4, , , , ,133 3,917 4, , , , ,228 4,035 4, , , , ,323 4,153 4, , , , ,417 4,272 4, , , , ,512 4,390 4, , , , ,607 4,508 4, , , , ,701 4,627 4, , , , ,796 4,745 4, , , , ,891 4,863 5, , , , ,985 4,982 5, , , , ,080 5,100 5, , , , ,105 5,131 5, , , , ,129 5,161 5, , , , ,154 5,192 5, , , , ,178 5,223 5, , , , ,203 5,254 5, , , , ,228 5,284 5, , , , ,252 5,315 5, , , , ,277 5,346 5, , , , ,301 5,377 5, , , , ,326 5,407 5, , , , ,351 5,438 5, , , , ,375 5,469 5, , , , ,400 5,500 5, , , , ,424 5,530 5, , , , ,449 5,561 5, , , , ,474 5,592 5, , , , ,498 5,623 5, , , , ,523 5,653 5, , , , ,547 5,684 5, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe 3 Wiring cable size must comply with the applicable local and national codes. (98.4 ft.) = 115 ft. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet 6 At least two indoor units should be connected. bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 294 MAX OUTDOOR UNIT

295 PERFORMANCE DATA Rated Cooling Combination Tables Table 281: LMU540HV with Mixed Indoor Rated Cooling Combination Table. Cooling Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw EER SEER 24 13, , , ,000 1,550 2, , , , ,168 1,668 2, , , , ,251 1,787 2, , , , ,333 1,905 2, , , , ,517 2,023 2, , , , ,606 2,141 2, , , , ,695 2,260 2, , , , ,855 2,378 3, , , , ,947 2,496 3, , , , ,039 2,615 3, , , , ,132 2,733 3, , , , ,281 2,851 3, , , , ,376 2,969 3, , , , ,470 3,088 3, , , , ,565 3,206 3, , , , ,659 3,324 3, , , , ,754 3,443 3, , , , ,849 3,561 3, , , , ,943 3,679 4, , , , ,038 3,797 4, , , , ,133 3,916 4, , , , ,227 4,034 4, , , , ,322 4,152 4, , , , ,416 4,271 4, , , , ,511 4,389 4, , , , ,606 4,507 4, , , , ,700 4,625 4, , , , ,795 4,744 4, , , , ,890 4,862 5, , , , ,984 4,980 5, , , , ,079 5,099 5, , , , ,103 5,129 5, , , , ,128 5,160 5, , , , ,153 5,191 5, , , , ,177 5,222 5, , , , ,202 5,253 5, , , , ,227 5,283 5, , , , ,251 5,314 5, , , , ,276 5,345 5, , , , ,301 5,376 5, , , , ,325 5,407 5, , , , ,350 5,438 5, , , , ,375 5,468 5, , , , ,399 5,499 5, , , , ,424 5,530 5, , , , ,449 5,561 5, , , , ,473 5,592 5, , , , ,498 5,623 5, , , , ,523 5,653 5, , , , ,547 5,684 5, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 2 Cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 6 At least two indoor units should be connected. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 295

296 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 282: LMU540HV with Non-Ducted Indoor Rated Heating Combination Table. Heating Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw COP HSPF 24 15, , , ,490 2,161 2, , , , ,588 2,268 2, , , , ,664 2,376 2, , , , ,739 2,484 2, , , , ,944 2,592 2, , , , ,025 2,700 2, , , , ,106 2,808 3, , , , ,275 2,916 3, , , , ,359 3,024 3, , , , ,443 3,132 3, , , , ,527 3,240 3, , , , ,679 3,348 3, , , , ,765 3,456 3, , , , ,851 3,564 3, , , , ,938 3,672 3, , , , ,024 3,780 4, , , , ,111 3,888 4, , , , ,197 3,996 4, , , , ,283 4,104 4, , , , ,370 4,212 4, , , , ,456 4,320 4, , , , ,543 4,428 4, , , , ,629 4,536 4, , , , ,715 4,644 4, , , , ,802 4,752 4, , , , ,888 4,860 5, , , , ,974 4,968 5, , , , ,061 5,076 5, , , , ,147 5,184 5, , , , ,234 5,292 5, , , , ,320 5,400 5, , , , ,345 5,432 5, , , , ,371 5,464 5, , , , ,396 5,495 5, , , , ,422 5,527 5, , , , ,447 5,559 5, , , , ,473 5,591 5, , , , ,498 5,623 5, , , , ,524 5,654 5, , , , ,549 5,686 5, , , , ,574 5,718 5, , , , ,600 5,750 5, , , , ,625 5,782 5, , , , ,651 5,813 5, , , , ,676 5,845 6, , , , ,702 5,877 6, , , , ,727 5,909 6, , , , ,753 5,941 6, , , , ,778 5,972 6, , , , ,803 6,004 6, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 6 At least two indoor units should be connected. 296 MAX OUTDOOR UNIT

297 PERFORMANCE DATA Rated Heating Combination Tables Table 283: LMU540HV with Ducted Indoor Rated Heating Combination Table. Heating Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw COP HSPF 24 15, , , ,490 2,310 2, , , , ,645 2,419 2, , , , ,719 2,528 2, , , , ,793 2,637 2, , , , ,977 2,746 2, , , , ,055 2,855 3, , , , ,134 2,964 3, , , , ,304 3,073 3, , , , ,386 3,182 3, , , , ,468 3,291 3, , , , ,550 3,400 3, , , , ,737 3,509 3, , , , ,822 3,618 3, , , , ,907 3,727 3, , , , ,992 3,836 4, , , , ,156 3,945 4, , , , ,243 4,054 4, , , , ,330 4,163 4, , , , ,417 4,272 4, , , , ,505 4,381 4, , , , ,592 4,490 4, , , , ,679 4,599 4, , , , ,766 4,708 4, , , , ,854 4,817 5, , , , ,941 4,926 5, , , , ,028 5,035 5, , , , ,115 5,144 5, , , , ,202 5,253 5, , , , ,290 5,362 5, , , , ,377 5,471 5, , , , ,464 5,580 5, , , , ,482 5,602 5, , , , ,500 5,625 5, , , , ,518 5,647 5, , , , ,535 5,669 5, , , , ,553 5,692 5, , , , ,571 5,714 5, , , , ,589 5,736 5, , , , ,607 5,759 5, , , , ,625 5,781 5, , , , ,643 5,803 5, , , , ,661 5,826 6, , , , ,678 5,848 6, , , , ,696 5,870 6, , , , ,714 5,893 6, , , , ,732 5,915 6, , , , ,750 5,937 6, , , , ,768 5,960 6, , , , ,786 5,982 6, , , , ,803 6,004 6, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 6 At least two indoor units should be connected. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 297

298 PERFORMANCE DATA Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 284: LMU540HV with Mixed Indoor Rated Heating Combination Table. Heating Input (W) Total Indoor Unit (kbtu/h) Minimum Rated Maximum Minimum Rated Maximum Btu/h kw Btu/h kw Btu/h kw COP HSPF 24 15, , , ,490 2,235 2, , , , ,616 2,344 2, , , , ,691 2,452 2, , , , ,766 2,561 2, , , , ,961 2,669 2, , , , ,040 2,778 3, , , , ,120 2,886 3, , , , ,290 2,995 3, , , , ,373 3,103 3, , , , ,456 3,212 3, , , , ,539 3,320 3, , , , ,708 3,429 3, , , , ,793 3,537 3, , , , ,879 3,646 3, , , , ,965 3,754 3, , , , ,090 3,863 4, , , , ,177 3,971 4, , , , ,264 4,080 4, , , , ,350 4,188 4, , , , ,437 4,297 4, , , , ,524 4,405 4, , , , ,611 4,514 4, , , , ,698 4,622 4, , , , ,784 4,731 4, , , , ,871 4,839 5, , , , ,958 4,948 5, , , , ,045 5,056 5, , , , ,132 5,165 5, , , , ,218 5,273 5, , , , ,305 5,382 5, , , , ,392 5,490 5, , , , ,414 5,517 5, , , , ,435 5,544 5, , , , ,457 5,571 5, , , , ,479 5,598 5, , , , ,500 5,625 5, , , , ,522 5,652 5, , , , ,544 5,679 5, , , , ,565 5,707 5, , , , ,587 5,734 5, , , , ,609 5,761 5, , , , ,630 5,788 5, , , , ,652 5,815 5, , , , ,674 5,842 6, , , , ,695 5,869 6, , , , ,717 5,896 6, , , , ,738 5,923 6, , , , ,760 5,950 6, , , , ,782 5,977 6, , , , ,803 6,004 6, as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 2 Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 3 Wiring cable size must comply with the applicable local and national codes. 4 The specification may be subject to change without prior notice for purpose of improvement. 5 Sum of connected indoor units capacity is 24~73 kbtu/h. 6 At least two indoor units should be connected. 298 MAX OUTDOOR UNIT

299 PERFORMANCE DATA Cooling Tables Table 285: LMU540HV Cooling Table Non-Ducted Indoor. Combination (kbtu/h[%]) Non-Ducted Indoor 73 (135%) Non-Ducted Indoor 70 (130%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 299

300 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 286: LMU540HV Cooling Table Non-Ducted Indoor (continued). Combination (kbtu/h[%]) Non-Ducted Indoor 65 (120%) Non-Ducted Indoor 59 (110%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 300 MAX OUTDOOR UNIT

301 PERFORMANCE DATA Cooling Tables Table 287: LMU540HV Cooling Table Non-Ducted Indoor. Combination (kbtu/h[%]) Non-Ducted Indoor 54 (100%) Non-Ducted Indoor 49 (90%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 301

302 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 288: LMU540HV Cooling Table Non-Ducted Indoor (continued). Combination (kbtu/h[%]) Non-Ducted Indoor 43 (80%) Non-Ducted Indoor 38 (70%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 302 MAX OUTDOOR UNIT

303 PERFORMANCE DATA Cooling Tables Table 289: LMU540HV Cooling Table Non-Ducted Indoor (continued). Combination (kbtu/h[%]) Non-Ducted Indoor 32 (60%) Non-Ducted Indoor 27 (50%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 303

304 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 290: LMU540HV Cooling Table Non-Ducted (continued) / Ducted Indoor. Combination (kbtu/h[%]) Non-Ducted Indoor 24 (40%) Ducted Indoor 73 (135%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 304 MAX OUTDOOR UNIT

305 PERFORMANCE DATA Cooling Tables Table 291: LMU540HV Cooling Table Ducted Indoor (continued). Combination (kbtu/h[%]) Ducted Indoor 70 (130%) Ducted Indoor 65 (120%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 305

306 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 292: LMU540HV Cooling Table Ducted Indoor (continued). Combination (kbtu/h[%]) Ducted Indoor 59 (110%) Ducted Indoor 54 (100%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 306 MAX OUTDOOR UNIT

307 PERFORMANCE DATA Cooling Tables Table 293: LMU540HV Cooling Table Ducted Indoor (continued). Combination (kbtu/h[%]) Ducted Indoor 49 (90%) Ducted Indoor 43 (80%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 307

308 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 294: LMU540HV Cooling Table Ducted Indoor (continued). Combination (kbtu/h[%]) Ducted Indoor 38 (70%) Ducted Indoor 32 (60%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 308 MAX OUTDOOR UNIT

309 PERFORMANCE DATA Cooling Tables Table 295: LMU540HV Cooling Table Ducted Indoor (continued). Combination (kbtu/h[%]) Ducted Indoor 27 (50%) Ducted Indoor 24 (40%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 309

310 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 296: LMU540HV Cooling Table Mixed Indoor. Combination (kbtu/h[%]) Mixed Indoor 73 (135%) Mixed Indoor 70 (130%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 310 MAX OUTDOOR UNIT

311 PERFORMANCE DATA Cooling Tables Table 297: LMU540HV Cooling Table Mixed Indoor (continued). Combination (kbtu/h[%]) Mixed Indoor 65 (120%) Mixed Indoor 59 (110%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 311

312 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 298: LMU540HV Cooling Table Mixed Indoor (continued). Combination (kbtu/h[%]) Mixed Indoor 54 (100%) Mixed Indoor 49 (90%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 312 MAX OUTDOOR UNIT

313 PERFORMANCE DATA Cooling Tables Table 299: LMU540HV Cooling Table Mixed Indoor (continued). Combination (kbtu/h[%]) Mixed Indoor 43 (80%) Mixed Indoor 38 (70%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 313

314 PERFORMANCE DATA Cooling Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 300: LMU540HV Cooling Table Mixed Indoor (continued). Combination (kbtu/h[%]) Mixed Indoor 32 (60%) Mixed Indoor 27 (50%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. 314 MAX OUTDOOR UNIT

315 PERFORMANCE DATA Cooling Tables Table 301: LMU540HV Cooling Table Mixed Indoor (continued). Combination (kbtu/h[%]) Mixed Indoor 24 (40%) Temp. ( F DB) Indoor Air Temp. F DB / F WB 68 / / / / / / 75 TC PI TC PI TC PI TC PI TC PI TC PI Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 315

316 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 302: LMU540HV Heating Table Non-Ducted Indoor. Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Non-Ducted Indoor (135%) Non-Ducted Indoor (130%) Non-Ducted Indoor (120%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 316 MAX OUTDOOR UNIT

317 PERFORMANCE DATA Heating Tables Table 303: LMU540HV Heating Table Non-Ducted Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Non-Ducted Indoor (110%) Non-Ducted Indoor (100%) Non-Ducted Indoor (90%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 317

318 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 304: LMU540HV Heating Table Non-Ducted Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Non-Ducted Indoor (80%) Non-Ducted Indoor (70%) Non-Ducted Indoor (60%) Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 318 MAX OUTDOOR UNIT

319 PERFORMANCE DATA Heating Tables Table 305: LMU540HV Heating Table Non-Ducted (continued) / Ducted Indoor. Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Non-Ducted Indoor (50%) Non-Ducted Indoor (40%) Ducted Indoor (135%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 319

320 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 306: LMU540HV Heating Table Ducted Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Ducted Indoor (130%) Ducted Indoor (120%) Ducted Indoor (110%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 320 MAX OUTDOOR UNIT

321 PERFORMANCE DATA Heating Tables Table 307: LMU540HV Heating Table Ducted Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Ducted Indoor (100%) Ducted Indoor (90%) Ducted Indoor (80%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 321

322 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 308: LMU540HV Heating Table Ducted Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Ducted Indoor (70%) Ducted Indoor (60%) Ducted Indoor (50%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 322 MAX OUTDOOR UNIT

323 PERFORMANCE DATA Heating Tables Table 309: LMU540HV Heating Table Ducted (continued) / Mixed Indoor. Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Ducted Indoor (40%) Mixed Indoor (135%) Mixed Indoor (130%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 323

324 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 310: LMU540HV Heating Table Mixed Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Mixed Indoor (120%) Mixed Indoor (110%) Mixed Indoor (100%) Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. 324 MAX OUTDOOR UNIT

325 PERFORMANCE DATA Heating Tables Table 311: LMU540HV Heating Table Mixed Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Mixed Indoor (90%) Mixed Indoor (80%) Mixed Indoor (70%) Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Multi F MAX Outdoor Unit Data MAX OUTDOOR UNIT 325

326 PERFORMANCE DATA Heating Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 312: LMU540HV Heating Table Mixed Indoor (continued). Combination Indoor Air Temp. F DB Temp (kbtu/h[%]) F DB F WB TC PI TC PI TC PI TC PI TC PI TC PI Mixed Indoor (60%) Mixed Indoor (50%) Mixed Indoor (40%) Nominal as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch pipe (98.4 ft.) = 115 ft. Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 326 MAX OUTDOOR UNIT

327 MAX OUTDOOR UNIT Electrical and Acoustic Data Electrical Data Table 313: LMU540HV Electrical Data. Nominal Voltage Condenser Fan Motor(s) Tons Unit Model No. Hertz Voltage Range MCA MOP Compressor Compressor (Min. to Max.) Quantity Motor RLA Condenser Fan Condenser Fan Quantity x kw Motor FLA 4.5 LMU540HV x x 2 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. RLA = Rated Load Amps. MCA = Minimum Circuit Ampacity. Maximum Overcurrent Protection (MOP) is calculated as follows: (Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down to the nearest standard fuse size. Acoustic Data Figure 21: Sound Pressure Level Measurement Location. 4.92' Side View 3.3' Figure 22: Sound Pressure Diagram. 80 LMU540HV Measurement taken 4.92 above finished floor, and at a distance of 3.3 from face of unit. Measurements taken with no attenuation and units operating at full load normal operating condition. Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. Sound pressure levels are measured in db(a) ±3. Tested in anechoic chamber per ISO Standard Table 314: Sound Pressure Levels (db[a]). Sound Pressure Levels (db[a]) Model No. Cooling Heating LMU540HV Multi F MAX Outdoor Unit Data 70 Cooling Heating Octave Band Sound Pressure Level (0dB = 20μPa ) Approximate Hearing Threshold Octave Band Center Frequency (Hz) NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC-15 MAX OUTDOOR UNIT 327

328 MAX OUTDOOR UNIT Refrigerant Flow Diagram Figure 23: LMU540HV Refrigerant Flow Diagram. Outdoor Unit Heat Exchanger Outlet Temperature Thermistor Inlet Air Temperature Thermistor Multi F and Multi F MAX Heat Pump System Engineering Manual Ø 3/8 Flare Connection Ø 3/4 Flare Connection : Cooling : Heating Pressure Sensor Fusible Plug Suction Pipe Temperature Thermistor Accumulator Electronic Expansion Valve S Hot Gas Bypass Valve M Discharge Pipe Temperature Thermistor Inverter Compressor M Heat Exchanger Inlet Temperature Thermistor Unit: Inch Table 315: LMU540HV Thermistor Details. Description Heat Exchanger Inlet Temperature Thermistor Heat Exchanger Outlet Temperature Thermistor Inlet Air Temperature Thermistor Discharge Pipe Temperature Thermistor Suction Pipe Temperature Thermistor Pressure Sensor PCB Connector CN-TH3 CN-TH1 CN-TH2 CN-P/SENSOR(H) 328 MAX OUTDOOR UNIT

329 Multi F MAX Outdoor Unit Data OUTDOOR UNIT Wiring Diagram Figure 24: LMU540HV Wiring Diagram. MAX OUTDOOR UNIT 329

330 MAX OUTDOOR UNIT Operation Ranges Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 25: LMU540HV Cooling and Heating Operation Ranges. Cooling Outdoor Temperature ( F DB) Continuous Indoor Temperature ( F WB) Outdoor Temperature ( F WB) Warming up Operation Heating Continuous Operation Indoor Temperature ( F DB) Cooling operation range can extend down to -4 F outdoor temperature if Low Ambient Kit is installed (sold separately). 330 MAX OUTDOOR UNIT

331 MAX BD UNIT DATA Features and Benefits on page 332 Mechanical Specifications on page 333 General Data on page 334 Dimensions on page 335 Refrigerant Flow Diagram on page 336 Wiring Diagram on page 337 Y-Branch Accessory on page 338 Branch Distribution Unit Orientation on page 339

332 MAX BD UNIT Features and Benefits The Branch Distribution (BD) unit is a required accessory of Multi F MAX inverter-driven heat pump systems. Choose from two (2) port, three (3) port, or four (4) port BD units. Multi F and Multi F MAX Heat Pump System Engineering Manual Two (2) refrigerant pipes-one (1) liquid line and one (1) vapor line-run from the outdoor unit to the BD unit that is installed inside of a building. Two (2), three (3), or four (4) sets of refrigerant lines will run from the BD unit to the indoor units, depending on type of BD unit selected. A Multi F MAX system can include up to two BD units (installed with the use of the Y-branch accessory PMBL5620) that support a total of eight (8) indoor units (up to four [4] indoor units per BD unit). Figure 26:Example of Multi F MAX Heat Pump Inverter System with two BD 332 BD UNIT

333 MAX BD UNIT Mechanical Specifications Branch Distribution Unit General Branch distribution units are designed for use with LG Multi F MAX (LMU540HV) outdoor units, and are internally piped, wired, assembled and run-tested at the factory. The branch distribution unit is used as an intermediate refrigerant control device between the outdoor unit and the indoor units to effectively and efficiently control the heating or cooling operation of the system through the use of electronic expansion valves. Figure 27:PMBD3620 Two-Port Branch Distribution Unit. Refrigerant System System is designed for use with R410A refrigerant. All refrigerant lines from the outdoor unit to the branch distribution unit, and from the branch distribution unit to the indoor units, must be field insulated. The units may be connected to optional field-supplied and field-installed isolation valves for servicing without evacuating the entire system. Piping Capabilities Maximum piping length from the branch distribution unit to the indoor unit is 49.2 equivalent feet. Maximum elevation difference between branch distribution unit and indoor unit is 32.8 feet. Maximum elevation difference between two parallel branch distribution units is 49.2 feet. Electrical Each branch distribution unit is designed to operate using /60/1 power with voltage variances of ±10%. Figure 28:PMBD3630 Three-Port Branch Distribution Unit. Figure 29:PMBD3640 and PMBD3641 Four-Port Branch Distribution Unit. Casing The casing is designed to mount fully concealed above a finished ceiling, is manufactured of galvanized steel plate, and is internally insulated. Branch distribution units do not require a condensate drain. Branch Distribution (BD) Unit Data Port Assembly Branch distribution units have a two-pipe system consisting of one vapor pipe and one liquid pipe. are available in a choice of two (PMBD3620), three (PMBD3630) or four ports (PMBD3640 and PMBD3641); branch distribution units include two, two-positioned solenoid valves per port. Each port for PMBD3620, PMBD3630, and PMBD3640 units connect to one indoor unit for a maximum nominal capacity of 24,000 Btu/h. For PMBD3641 units, ports A, B, C each connect to one indoor unit for a maximum nominal capacity of 24,000 Btu/h; port D connect to one indoor unit for a nominal capacity of 36,000 Btu/h. Maximum nominal capacity per branch distribution unit is 73,000 Btu/h. Two branch distribution units can be piped in parallel using accessory Y-branch kit PMBL5620. Controls The unit is provided with factory-installed control boards and an integral microprocessor to communicate with the main control board in the outdoor unit. Communication between the branch distribution unit, the outdoor unit, and the indoor units is accomplished through a 18 AWG, four-core, stranded and shielded power / communication cable. BD UNIT 333

334 MAX BD UNIT General Data Multi F and Multi F MAX Heat Pump System Engineering Manual Table 316: Multi F MAX BD Unit General Data. Model Number PMBD3620 PMBD3630 PMBD3640 PMBD3641 No. of Connectable Indoor Max. Nominal / Port (Btu/h) 2 24,000 24,000 24,000 24,000 for A,B,C Ports; 36,000 for D Port Max. Nominal / BD Unit (Btu/h) 48,000 72,000 73,000 73,000 Operation Temperature Range ( F DB) 0 ~ ~ ~ ~ 122 Unit Data Refrigerant Type R410A R410A R410A R410A Power Supply V, Ø, Hz , 1, , 1, , 1, , 1, 60 Power Input (W) Rated Amps (A) Dimensions W x H x D (in.) 17-3/32 x 6-13/ /32 x 6-13/ /32 x 6-13/ /32 x 6-13/32 x 10-23/32 x 10-23/32 x 10-23/32 x 10-23/32 Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communication Cables 3 From Outdoor Unit to BD Unit (Qty. x AWG) 3 4 x 16 4 x 16 4 x 16 4 x 16 From BD Unit to Indoor Unit (Qty. x AWG) 3 4 x 18 4 x 18 4 x 18 4 x 18 Piping Connections Outdoor Unit to Liquid (in., OD) Ø3/8 Ø3/8 Ø3/8 Ø3/8 BD Unit Vapor (in., OD) Ø3/4 Ø3/4 Ø3/4 Ø3/4 Ø1/4 x 3 Liquid (in., OD) x Qty. Ø1/4 x 2 Ø1/4 x 3 Ø1/4 x 4 BD Unit to Ø3/8 x 1 Indoor Ø3/8 x 3 Vapor (in., OD) x Qty. Ø3/8 x 2 Ø3/8 x 3 Ø3/8 x 4 Ø5/8 x 1 Piping Lengths Maximum Total System Piping (ft.) Maximum Main Pipe Length (Outdoor Unit to BD [ft.]) Total Branch Piping (BD to Indoor [ft.]) Maximum Branch Pipe Length Between BD Unit and Each Indoor Unit [ft.]) Maximum Outdoor Unit to Indoor Unit Pipe Length (ft.) Piping Length (No Additional Refrigerant [ft.]; approx. 16 ft. of Main Piping ft. of Branch Piping) Maximum Elevation between BD Unit and Indoor Unit (ft.) Maximum Elevation between BD Unit and BD Unit (ft.) At least one Branch Distribution Unit is required for system operation; a maximum of two can be installed per outdoor unit with use of Y-branch accessory (PMBL5620) To connect only one (1) indoor unit to a branch distribution unit, the system must include another branch distribution unit with at least one (1) connected indoor unit. 2 Branch Distribution Unit can accommodate from one (1) indoor unit up to four (4) indoor units depending on the ports available on the Branch Distribution Unit. 3 All power wiring / communication cables to be four-conductor, stranded, shielded, and must comply with applicable local and national codes. 4 Piping lengths are equivalent. 334 BD UNIT

335 MAX BD UNIT Dimensions Figure 30:PMBD3620, PMBD3630, PMBD3640, and PMBD3641 External Dimensions. (EEV service) 1-23/ / / /32 17 Main Pipe 1-3/ / /32 1-1/2 A B C D 5-5/8 + 13/32* x 2 4-3/8 2-27/ /8 2-3/8 2-7/ /32 (Servicing space) Min 1-3/ / /32 Branch Pipe Cover Control (Controller service) Liquid Pipe: Ø1/4 Gas Pipe: Ø3/8 *PMBD3641: D connections - Ø3/8, Ø5/8 298( / /32) 252(9-29/32) 9-29/32 + (10(13/32)* + 13/32* x x 2 2) Suspension bolt pitch. A B C D 9-7/16 Ø3/8 Ø3/4 13-9/ /8 Branch Distribution (BD) Unit Data Min 15-3/4 Min 15-3/4 9-27/32 or more Inspection opening (Side view) Notes 1. PMBD3620 unit supplied with "A, B" 2. PMBD3630 unit supplied with "A, B, C" 3.PMBD3640, PMBD3641 unit supplied with "A, B, C, D" 4. * Thickness of insulation 23-5/8 (Bottom view) Unit: inch BD UNIT 335

336 MAX BD UNIT Refrigerant Flow Diagram Figure 31:PMBD3620, PMBD3630, PMBD3640, PMBD3641 Refrigerant Flow Diagram. Multi F and Multi F MAX Heat Pump System Engineering Manual To Indoor *PMBD3641 D Gas: Ø5/8 D Gas (Ø3/8) C Gas (Ø3/8) B Gas (Ø3/8) A Gas (Ø3/8) *PMBD3641 D Liquid: Ø3/8 D Liquid (Ø1/4) C Liquid (Ø1/4) B Liquid (Ø1/4) A Liquid (Ø1/4) EEV-A EEV-B EEV-C EEV-D Main gas piping (Ø 3/4) Main liquid piping (Ø 3/8) Refrigerant flow Unit: inch Cooling Heating To Outdoor Unit 1. Flare connections for field piping installation. 2. Match the BD ports to the indoor unit and outdoor unit piping sizes. Use an adapter if the piping size does not match the piping size of the connecting indoor unit. 3. EEV: Electronic Expansion Valve 4. PMBD3620 BD Unit supplied with "A, B". PMBD3630 BD Unit supplied with "A, B, C". PMBD3640 and PMBD3641 BD supplied with "A, B, C, D". 336 BD UNIT

337 MAX BD UNIT Wiring Diagram Figure 32:PMBD3620, PMBD3630, PMBD3640, PMBD3641 Wiring Diagram. Model Dependant Model Dependant Troubleshooting Model Dependant Model Dependant Branch Distribution (BD) Unit Data PMBD3620 BD Unit supplied with "A, B". PMBD3630 BD Unit supplied with "A, B, C". PMBD3640 and PMBD3641 BD supplied with "A, B, C, D". BD UNIT 337

338 MAX BD UNIT Multi F MAX Y-Branch Accessory Multi F and Multi F MAX Heat Pump System Engineering Manual Y-Branch accessory PMBL5620 is required when installing two branch distribution units in parallel on one Multi F MAX system. Table 317: Multi F MAX Y-Branch Specifications. Model PMBL5620 Y-Branch Type Port Identifier (inch) Liquid Ø3/8 Ø3/8 Ø3/8 Vapor Ø3/4 Ø3/4 Ø3/4 Y-Branch Type Figure 33:Y-Branch Port Identifier Diagram. 1 X Dimensions (inch) Liquid Vapor Figure 34:Y-Branch Dimensions Diagram. A 1 A = To Outdoor Unit B = To Branch Distribution Unit X Y 3 2 Y B 338 BD UNIT

339 MAX BD UNIT Branch Distribution Unit Orientation Multi F MAX Branch Distribution (BD) can be installed in a multitude of options to fit various building configurations and job or application requirements. Multi F MAX BD include electronic expansion valves that properly seat only if the BD Unit is installed in an acceptable orientation. Installations with improper BD Unit orientation risk incomplete valve seating and system performance degradation from potential refrigerant leakage through the electronic expansion valve. Figure 35:Acceptable BD Unit Ceiling Mount Orientations. Ceiling Mounting Options Ceiling Ceiling Ceiling Top of Unit Right Side View, Port End Facing Right Top of Unit Left Side View, Port End Facing Left Figure 36:Acceptable BD Unit Wall Mount Orientations. Wall Mounting Options Wall Wall Bottom View, Port End Down Wall PCB Bottom of Unit Top of Unit PCB Top of Unit Port End View Bottom of Unit Bottom View, Port End Facing Right Wall Top of Unit Wall This material is for informational or educational purposes only. It is not intended to be a substitute for professional advice. Consult with your engineer or design professionals for specific applications to your system Ceiling Top of Unit Refrigerant Piping End View Bottom of Unit PCB Bottom View, Port End Facing Left Into the Ceiling Into the Unit Into the Unit Isometric View Top of Unit Into the Ceiling Isometric View Bottom of Unit Into the Wall Into the Unit Into the Unit Into the Ceiling Branch Distribution (BD) Unit Data Into the Unit Into the Wall Right Side View, Port End Facing Right Left Side View, Port End Facing Left Into the Wall Figure 37:Unacceptable BD Unit Orientation. Wall Bottom of Unit PCB Bottom View, Port End Facing Up BD UNIT 339

340 Multi F and Multi F MAX Heat Pump System Engineering Manual 340 BD UNIT

341 APPLICATION GUIDELINES Equipment Selection Procedure on page 342 Building Ventilation Design Guide on page 348 Placement Considerations on page 353

342 EQUIPMENT SELECTION PROCEDURE Multi F and Multi F MAX Indoor Unit Engineering Manual To choose the multi-zone system that is the most appropriate for the space, as with traditional air-conditioning systems, follow similar protocols outlined in Manual J from the Air Conditioning Contractors of America (ACCA; see 1. Obtain the design conditions, and calculate the maximum cool and heat loads for the structure. 2. Select the equipment (choosing the appropriate indoor units and outdoor unit): Determine number of zones. Determine total number of indoor units (refer to zone load calculations when choosing indoor units). Determine number of indoor units allocated to each outdoor unit, considering allowable indoor unit connections, both indoor unit and outdoor unit capacities, and system piping capabilities. 3. Determine the corrected capacity for the indoor units and outdoor unit using LATS Multi F software (preferred method) or: System Combination Tables. Tables (it may be necessary to interpolate). Coefficient Factors (such as refrigerant line length derates, design condition derates, defrost operation derate [heating mode], altitude derate [if applicable]). 4. Compare corrected capacities to load calculations. 5. Reselect equipment if necessary. Obtain Design Conditions, Calculate Maximum Cool / Heat Loads Obtain the winter outdoor/indoor temperature and summer and winter outdoor / indoor temperature design parameters for the location in which the system is installed. Determine if summer or winter design gains, relative humidity, and building features like skylights, orientation, number of occupants, etc., would change the total heat loss / gain and sensible / latent heat gain, and then calculate the maximum cool and heat loads for the space (using Manual J or energy modeling programs). Select the Equipment Determine the Number of Zones Multi F heat pump systems can cool or heat, but not simultaneously. When designing larger-capacity Multi F heat pump systems or a Multi F MAX system, the designer may be able to combine spaces with similar load profiles located near or adjacent to each other into thermal zones. After combining like spaces into zones that will be served by a single (or grouped) indoor unit(s), calculate the peak cooling and heating loads for each zone. Choosing the Appropriate Indoor Determine the appropriate indoor unit capacity that satisfies the given zone load calculations, choose how many (and which styles of) indoor units will be required. See Table 96 for allowable indoor unit to outdoor unit connections, and the maximum number of connectable indoor units on each Multi F and Multi F MAX outdoor unit. When choosing, also consider the cooling and heating CFM, featured airflow specifications, and static pressure (if applicable) for each indoor unit. Avoid oversizing indoor units in an attempt to increase the air exchange rate in the space. Multi F and Multi F MAX systems are designed for minimum airflow over the coil to maximize latent capacity while cooling, maintain a comfortable, consistent discharge air temperature while heating, and minimize fan motor power consumption. In extreme cases, oversizing the indoor units may affect outdoor unit size selection and compromise the outdoor unit s ability to effectively match the space load(s). For proper system operation: 1. At least two indoor units must be connected to the outdoor unit. 2. Total connected indoor unit nominal capacity should be a minimum 40% and a maximum of 133% of outdoor unit nominal capacity. 3. To calculate the connected total indoor unit nominal capacity, simply sum up the nominal capacities of all indoor units. For 24,000 and 36,000 Btu/h high static duct and vertical-horizontal air handling indoor units, a 1.3 multiplier must first be applied before adding to the sum of other smaller indoor units. When two 24,000 Btu/h or one 24,000 Btu/h and one 36,000 Btu/h high static duct and / or vertical-horizontal air handling indoor units are the only connected indoor units, the multiplier is APPLICATION GUIDELINES

343 EQUIPMENT SELECTION PROCEDURE Multiplier Examples Example 1 Branch Distribution Unit (PMBD3641) Example 2 Branch Distribution Unit (PMBD3620) Outdoor Unit: LMU540HV First Indoor Unit: LMCN125HV + Second Indoor Unit: + LSN090HSV4 Third Indoor Unit: LMVN360HV Total = x 1.3 = 67.8 < 73 Acceptable Combination Outdoor Unit: LMU540HV First Indoor Unit: LMVN240HV + Second Indoor Unit: LMVN240HV Total = 24 x x 1.2 = 57.6 < 73 Acceptable Combination Table 318: Allowable Indoor Unit to Outdoor Unit Connections. Indoor units Model Type ART COOL Mirror ART COOL Gallery Wall Mounted Ceiling Concealed Duct-Low Static Ceiling Concealed Duct-High Static Four-Way Ceiling Cassette Vertical-Horizontal Air Handler Outdoor units LMU18CHV LMU24CHV LMU36CHV LMU540HV Maximum No. of Connectable Indoor ,000 O O O O 12,000 O O O O 18,000 - O O O Indoor Unit Nominal (Btu/h) 9,000 O O O O 12,000 O O O O 7,000 O O O O 9,000 O O O O 12,000 O O O O 15,000 O O O O 18,000 - O O O 24,000 - O O O 9,000 O O O O 12,000 O O O O 18,000 - O O O 24, O O 36, O 7,000 O O O O 9,000 O O O O 12,000 O O O O 18,000 - O O O 24, O O 36, O Application Guidelines Choosing the Appropriate Outdoor Unit After all indoor units are properly sized to offset the applicable loads in each zone, select the outdoor unit by choosing a size that meets both the load-cooling requirement, and offsets the sum of the heating load. Then, the system s combination ratio should be evaluated and confirmed it is within the allowable range (the combination ratio compares the nominal capacity of all connected indoor units to the nominal capacity of the outdoor unit serving them). The total nominal capacity of all indoor units should be smaller than the total nominal capacity of the outdoor unit. If the combination ratio is more than 100%, the designer is undersizing the outdoor unit relative to the combined nominal capacity of the connected indoor units. In some designs, oversized indoor units may be unavoidable in the case where the smallest size indoor unit available from LG is larger than what is necessary to satisfy the zone load. This scenario may also occur when an indoor unit selection one size down from the selected unit is slightly short of fulfilling the design load requirements, and the designer must choose the next largest size unit. Sometimes it is recommended to choose a larger capacity outdoor unit if the installation space is big enough. Also, it may be prudent to oversize the outdoor unit to address those times when the weather conditions may exceed the design conditions, to minimize the possibility of ventilation systems that causes the space temperature to drift outside design parameters, or when the indoor unit s entering air temperature falls outside the approved design temperature range. APPLICATION GUIDELINES 343

344 EQUIPMENT SELECTION PROCEDURE Multi F and Multi F MAX Indoor Unit Engineering Manual Table 319: Rated Outdoor Unit. Outdoor LMU18CHV LMU24CHV LMU36CHV LMU540HV Cooling 17,000 20,000 32,000 52,500 Rated (Btu/h) Heating 22,000 24,000 36,000 58,000 Minimum No. of Connectable Indoor Connectable Indoor Maximum No. of Connectable Indoor Maximum 24,000 33,000 48,000 73,000 Determine the Corrected The corrected cooling / heating capacity is different from the rated cooling / heating capacity. The corrected capacity includes changes in unit performance after considering design temperatures, available capacity that can be allocated from the outdoor unit, pressure drop due to refrigerant line length, defrost operation in heating mode, and (if applicable) altitude. Depending on the location of the building, additional capacity correction factors may need to be applied. Using the Outdoor Unit Cooling and Heating Tables Rated cooling capacity ratings are obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Rated heating capacity ratings are obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). To evaluate the total outdoor unit capacity at design conditions, using LATS Multi F software (preferred method) or reference the Performance Data Tables found in the Multi F outdoor unit section in this manual. All design temperatures are not explicitly shown in the charts, therefore, interpolation may be necessary to calculate the capacity for specific design conditions. Based on the premise that capacity follows a linear curve, the following formula can be applied: (y - y1) / (y2 - y1) = (x - x1) / (x2 - x1) Where y = Missing ( at the Design Temperature). 1 y1 = at Lower Temperature (Smaller value of the two nearest published TC datapoints). y2 = at Higher Temperature (Higher value of the two nearest published TC datapoints). x = Design Temperature (Temperature not shown in published capacity tables). 2 x1 = (Smaller value of the two nearest published temperature datapoints). x2 = (Larger value of the two nearest published temperature datapoints). 1 Median between two published Total [TC] Btu/h datapoints in the capacity table. 2 Median between two nearest published temperature datapoints. Using the Indoor Unit Cooling and Heating Tables The datapoints shown in the indoor unit cooling and heating capacity charts are based on (and convey) an indoor unit operating with maximum possible refrigerant flow from the outdoor unit and before any derates are applied. In other words, the capacities displayed reflect what the indoor unit would produce if it was the only indoor unit that required capacity, and the outdoor unit did not have to allocate any capacity to another indoor unit. System operation with a combination of indoor units is not conveyed in these charts, however, the information can be used to calculate indoor unit allocated capacity (without using the system combination tables). Simply calculate by using the formula: Qidu(combi) = Qodu(rated) x Qidu(rated) ΣQidu(rated) Where Qidu(combi) = Individual Indoor Unit Combination. Qodu(rated) = Outdoor Unit Rated. Qidu(rated) = Individual Indoor Unit Rated. ΣQidu(rated) = Total Unit Rated. The formula can be used to find individual indoor unit capacity for Multi F MAX systems. A more accurate method to determine expected capacity would be to apply the outdoor unit s corrected capacity instead of rated capacity. 344 APPLICATION GUIDELINES

345 EQUIPMENT SELECTION PROCEDURE Using the System Combination Tables Multi F system combination tables illustrate how each indoor unit receives a percentage of total outdoor unit rated capacity. Allocation is based on: Combinations of Non-Ducted Indoor Combinations of Ducted Indoor Combinations of Mixed Non-Ducted and Ducted Indoor Multi F MAX system combination tables only show the total connected indoor unit capacity, but individual indoor unit capacity can be calculated using the formula: Qidu(combi) = Qodu(rated) x Qidu(rated) ΣQidu(rated) A more accurate method to determine expected capacity would be to apply the outdoor unit s corrected capacity instead of rated capacity. Coefficient Factors Refrigerant Line Length Derates For air-cooled systems, a capacity correction factor may have to be applied to account for the length of the system s refrigerant pipe. Rate of change in capacity due to increased piping lengths is shown in Tables 320 to 322. Table 320: Multi F Outdoor Unit (Multiple Piping) to Indoor Unit Refrigerant Line Length Derates. Piping Length (feet) Cooling (%) Heating (%) 7,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models Application Guidelines APPLICATION GUIDELINES 345

346 EQUIPMENT SELECTION PROCEDURE Table 321: Multi F MAX Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derates. Main Piping Length (feet) Cooling (%) Heating (%) Figure 38: Multi F MAX Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derate Chart Multi F and Multi F MAX Indoor Unit Engineering Manual (%) Main piping length (ft.) Heating capacity Cooling capacity Table 322: Multi F MAX Branch Distribution Unit to Indoor Unit Refrigerant Line Length Derates. Piping Length (feet) Cooling (%) Heating (%) 7,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models ,000 Btu/h Indoor Unit Models APPLICATION GUIDELINES

347 EQUIPMENT SELECTION PROCEDURE Altitude Correction Factor The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted altitude correction factors must be applied. Defrost Correction Factor for Heating Operation The outdoor unit heating capacity may need to be adjusted for frost accumulation on air-cooled systems. If design day conditions are below the dewpoint of the surrounding air, frost may not be a problem and no correction factor is needed. In certain weather conditions, however, frost may form and accumulate on the air-cooled outdoor unit coil and impact the coils ability to transfer heat. If significant frost accumulates on the outdoor unit coil, a defrost algorithm will start automatically. The timing between defrost periods is determined by the system s ability to achieve a target head pressure value. and AHRI ratings tables do not factor in capacity reduction when frost has accumulated on the condenser coil, nor during defrost operation. Integrated heating capacity values can be obtained using the formula: A = B x C Where: A = Integrated Heating. B = Value found in the Table. C = Correction Factor for Frost Accumulation Factor (from Table 101). Table 323: Outdoor Unit Frost Accumulation Factor (Heating) 1. Entering DB (ºF) Derate factor At 85% outdoor air relative humidity. The frost accumulation factor does not account for effects of snow accumulation restricting airflow through the outdoor unit coil. There will be temporary reduction in capacity when frost / ice accumulates on the outside surface of the outdoor unit heat exchanger. The level of capacity reduction depends on a number of factors, for example, outdoor temperature ( F DB), relative humidity (RH), and the amount of frost present. Check the Indoor and Outdoor Unit Selection(s) Compare the corrected cooling and heating capacities to the load calculations. Is each capacity sufficient for the zone it serves? For each indoor unit, the corrected capacity must be at least equal to the total of the cooling design load (plus ventilation load, if applicable) for the space(s) served by the indoor unit. For each indoor unit, the corrected capacity also must be at least equal to the total of the heating design load (plus ventilation load, if applicable) for the space(s) and / or thermal zones served by the indoor unit. The outdoor unit selected should be large enough to offset the total cooling load for all spaces it serves (account for ventilation air cooling load if the ventilation air has not been pretreated to room neutral conditions). The outdoor unit should also be large enough to offset the total heating load for all spaces it serves. If the corrected heating capacity ratio exceeds 100%, reselect the equipment, or change the system design by moving some of the load to another system. Application Guidelines System Sizing Check Formulas 1. Outdoor Unit Rated. Q odu(rated) (From capacity tables). 2. Outdoor Unit at Ti, To Temperature. Q odu(ti, To) (From capacity tables). 3. Outdoor Unit Coefficient Factor. F (Ti, To) = Q odu(ti, To) / Q odu(rated) Conclusions and Recommendations Understand the design safety factors. Reference load calculations for actual cooling and heating capacities (applies in 99% of applications consider total load when latent load is greater than 30%). Verify that the sensible load of the zone is satisfied. 4. Piping Correction Factor (From Coefficient Factor Tables). F (length) for each piping length 5. Individual Indoor Unit Combination. Q idu (combi) = Q odu(rated) x Q idu(rated) / Q idu(rated-total) 6. Individual Indoor Unit Actual. Q idu (actual) = Q odu(combi) x F (Ti, To) x F (length, altitude) Use caution when sizing to meet listed capacity specifications for the scheduled manufacturer s equipment. If further system design assistance is needed, or you have a unique application you would like to discuss, contact your LG sales rep. APPLICATION GUIDELINES 347

348 BUILDING VENTILATION DESIGN GUIDE ASHRAE Standards 62.1 and 62.2 (depending on if the building is residential or commercial), and local codes specify the minimum volume of airflow that must be provided to an occupied space. Outdoor air is required to minimize adverse health effects, and it provides acceptable indoor air quality for building occupants. Indoor units located within the zone typically require less airflow to condition the space. During the design phase, refer to the airflow capabilities listed in the specification tables for each product. Choose the best method for the application out of the five (5) ventilation options available. Multi F and Multi F MAX Indoor Unit Engineering Manual Disclaimer Although we believe that these building ventilation methods have been portrayed accurately, none of the methods have been tested, verified, or evaluated by LG Electronics, U.S.A., Inc., In all cases, the designer, installer, and contractor should understand if the suggested method is used, it is used at their own risk. LG Electronics U.S.A., Inc., takes no responsibility and offers no warranty, expressed or implied, of merchantability or fitness of purpose if this method fails to perform as stated or intended. For a complete copy of ASHRAE Standard 62.1 and 62.2, refer to the American Standard of Heating and Air Conditioning Engineers (ASHRAE) website at Method 1: Natural Ventilation (Non-Ducted, Unconditioned ) Natural ventilation devices, such as operable windows or louvers may be used to ventilate the building when local code permits. Advantages Disadvantages Occupants control the volume of the ventilation air manually. In some locations, it may be difficult to control humidity levels when Useful for historic buildings that have no ceiling space available for windows are open. outdoor air ductwork. Thermal comfort levels may be substandard when windows are May be used with the full lineup of Multi F indoor units. open. Indoor units may have to be oversized to account for the added heating and cooling loads when windows are open. Provides outdoor air to perimeter spaces only. Additional mechanical ventilation system may be required to satisfy requirements for interior spaces. Outdoor air loads may be difficult to calculate since the quantity of outdoor air is not regulated. May affect indoor unit proper operation when open. Figure 39: Natural Ventilation (Non-Ducted, Unconditioned ). 348 APPLICATION GUIDELINES

349 BUILDING VENTILATION DESIGN GUIDE Method 2: Unconditioned (Non-Ducted, Fan Assisted Ventilation) When approved by local codes, the fan assisted ventilation method uses exhaust fans to remove air from the building, and outdoor air is drawn into occupied spaces through a wall louver or gravity roof intake hood. Supply fans can also be used to push the outdoor air into the space and building positive pressure will vent the exhaust air through louvers or roof-mounted exhaust hoods. Outdoor air is neither cooled nor heated before entering the building. This may result in loss of building pressurization control, increasing infiltration loads with adverse effects. Advantages Outdoor air may be manually controlled by the occupant or automatic controls may be installed to open/close outdoor air dampers or to turn on/off ventilation fans. Useful for large open spaces like warehouses, garages, and workshops. Outdoor air volume is a known quantity. Air loads may be easier to calculate since fans will regulate the amount of outdoor air. May be used with the full lineup of Multi F indoor units. Figure 40: Unconditioned (Non-Ducted, Fan Assisted Ventilation). Disadvantages In some locations of the country, it may be difficult to control humidity levels. Indoor units may have to be oversized to account for the added heating/cooling loads when louvers/hoods are open. Hot, cold, and/or humid areas may be present if the outdoor air is not evenly distributed to the different spaces. Roof Fan Application Guidelines OA Wall Louver Damper APPLICATION GUIDELINES 349

350 BUILDING VENTILATION DESIGN GUIDE Method 3: Unconditioned Ducted to Indoor Untreated outdoor air is channeled through a duct system that is piped to the return air duct on Multi F ducted indoor units or to the frame of Multi F four-way cassettes. Multi F and Multi F MAX Indoor Unit Engineering Manual Outside air may flow backward through the return air-filter grille when the indoor unit fan speed slows or stops in response to changes in the space load. This may result in captured particulate on the filter media being blown back into the conditioned space. Advantages May require less ductwork if indoor units are placed near outdoor walls or a roof deck. Controls must be interlocked to shut off the outdoor air supply fan when the space is unoccupied. Third-party demand-control ventilation controls may be installed to regulate outdoor intake based on the CO 2 levels of the occupied space. Figure 41: Unconditioned Ducted to Indoor. OA Wall Cap Damper Inline Fan with Filter Disadvantages Fan(s) will be required to push outdoor air to the indoor unit to overcome the additional static pressure. Filter required to be added to the outdoor air duct. Ducted and four-way cassette models are the only indoor units that accept the connection of an outdoor air duct to the unit case. In most cases, in lieu of using the factory mounted return-air thermistor on indoor units, a remote wall temperature sensor or zone controller will be needed to provide an accurate reading of the conditioned area temperature. Unconditioned outdoor air may affect indoor unit performance, which may necessitate oversizing the indoor unit. 350 APPLICATION GUIDELINES

351 BUILDING VENTILATION DESIGN GUIDE Method 4: Coupled Dedicated (CDOA) A separate, dedicated outdoor air system delivers air directly to a Multi F indoor unit or to the return air duct system. After mixing with the return air stream, ventilation air passes through the indoor unit and into the conditioned space. The pretreatment system is capable of filtering, conditioning, and dehumidifying outdoor air to room neutral conditions. Outside air may flow backward through the return air-filter grille when the indoor unit fan speed is reduced or stops when the space load is satisfied. This may result in captured particulate on the filter media being blown back into the conditioned space. Advantages Indoor unit capacity may not need to be increased because of outdoor air. Fan and filter system is centralized to the main outdoor air unit. Figure 42: Coupled Dedicated (CDOA). Disadvantages Ducted and four-way cassette indoor units are the only models designed for direct connection of an outside air duct. Ceiling space is required for ductwork. Failure of outdoor air may impact indoor unit operation. In lieu of using the factory mounted return-air thermistor, a remote wall temperature sensor or zone controller may be required to provide an accurate conditioned space temperature reading. Application Guidelines Outdoor Air Unit APPLICATION GUIDELINES 351

352 BUILDING VENTILATION DESIGN GUIDE Method 5: Decoupled Dedicated System (DDOAS) Provide a separate, dedicated outdoor-air system designed to filter, condition, and dehumidify ventilation air and deliver it directly to the conditioned space through a separate register or grille. This approach requires a separate independent ventilation duct system not associated with the Multi F system. Multi F and Multi F MAX Indoor Unit Engineering Manual LG recommends using the DDOAS method in all installations. Advantages Does not add additional heating or cooling loads to indoor units. May be used with the full lineup of Multi F indoor units. Failure of outdoor unit does not impact operation of indoor unit, the resulting untreated air will be readily noticed by the occupants. The outdoor air unit may supply neutral air to the occupant space even when the Multi F indoor unit fan changes speed or cycles on and off. DDOAS controls do not have to be interlocked with the Multi V F system. In lieu of installing localized smaller outside air treatment equipment throughout the building, this method centralizes the ventilation air source making service and filter changes easier and less disruptive for the building occupants. Third-party demand control ventilation controls are more readily accommodated. Indoor unit operation and performance will not be affected by the condition of outdoor air. Figure 43: Decoupled Dedicated System (DDOAS). Disadvantages Ceiling space is required to accommodate ductwork between the outdoor air unit and ceiling diffusers. Indoor Unit Indoor Unit s Outdoor Air Unit Ceiling Diffuser 352 APPLICATION GUIDELINES

353 PLACEMENT CONSIDERATIONS Selecting the Best Location for the Indoor Select a location for installing the indoor units that will meet the following conditions: Within allowable parameters for proper connection to the outdoor unit (or Branch Distribution unit, if a Multi F MAX system). No obstacles to air circulation around the unit; keep proper distances from ceilings, doorways, floor, walls, etc. So that condensation drainage can be conveniently routed away. Include enough space around the indoor unit so that it is accessible for maintenance and service purposes. Where electrical noise / electromagnetic waves will not affect indoor unit operation. Maintain proper distances between the indoor units and electric wires, audio and visual appliances, breaker / circuit panels, etc. If the frequency signal of the appliance is unstable, then install the indoor unit a minimum of ten (10) feet away, and run the power and transmission cables through a conduit. An area that is level and with enough strength to bear the weight of the indoor unit(s). An area where operation sound won t disturb occupants. An area that does not expose the indoor unit(s) to heat, water, steam, oil splattering or spray. Selecting the Best Location for the Branch Distribution (BD) Unit Branch Distribution (BD) units are used only with Multi F MAX systems to distribute the refrigerant from the outdoor unit to up to eight indoor units. Select location indoors that will meet the following conditions: Within allowable parameters for proper connection to the Multi F MAX outdoor unit and indoor unit(s); refrigerant piping and wire lengths must not exceed amounts specified by LG Electronics, U.S.A., Inc. No obstacles to air circulation around the unit; keep proper distances from ceilings, doorways, floor, walls, etc. Condensate drain piping is not required. Ensure there is enough space in the installation area for service purposes; install the refrigerant piping and electrical wiring system in an easily accessible location. Do not install the BD unit in a location where it would be subjected to strong radiation heat from heat sources. Avoid an installation environment where the BD unit would be exposed to heat, water, steam, oil splattering or spray. Where high-frequency electrical noise / electromagnetic waves will not affect operation. Maintain proper distances between the BD unit(s) and electric wires, audio and visual appliances, breaker / circuit panels, etc. Level where there is enough strength to bear the weight of the BD unit. Install the unit in a location where any sound it generates will not disturb occupants in the surrounding rooms. Application Guidelines Selecting the Best Location for the Outdoor Unit Select a location for installing the outdoor unit that will meet the following general conditions: A location strong enough to bear the weight of the outdoor unit. A location that allows for optimum air flow and is easily accessible for inspection, maintenance, and service. Where piping between the outdoor unit, indoor unit(s), and BD units (Multi F MAX systems only) are within allowable limits. Where it will not be subjected to direct thermal radiation from other heat sources, nor an area that would not expose the outdoor unit to heat or steam like discharge from boiler stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing vents, and other sources of extreme temperatures. Where operating sound from the unit will not disturb inhabitants of surrounding buildings. Where the unit will not be exposed to direct, strong winds. Where high-frequency electrical noise / electromagnetic waves will not affect operation. Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode. Avoid placing the outdoor unit in a low-lying area where water could accumulate. When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost mode will not accumulate and freeze on sidewalks or driveways. To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. Don t install the unit in a location where oil, acidic solutions, sprays, or dust (sulfur, carbon, other corrosive materials) are present / often used. APPLICATION GUIDELINES 353

354 PLACEMENT CONSIDERATIONS Rooftop Installations If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting. Multi F and Multi F MAX Indoor Unit Engineering Manual Oceanside Installation Precautions Avoid installing the outdoor unit where it would be directly exposed to ocean winds. Install the outdoor unit on the side of the building opposite from direct ocean winds. Select a location with good drainage. Periodically clean dust or salt particles off of the heat exchanger with water. Additional anti-corrosion treatment may need to be applied to the outdoor unit at oceanside locations. Ocean winds may cause corrosion, particularly on the condenser and evaporator fins, which, in turn could cause product malfunction or inefficient performance. Ocean winds If the outdoor unit must be placed in a location where it would be subjected to direct ocean winds, install a concrete windbreaker strong enough to block any winds. Windbreaker height and width should be more than 150% of the outdoor unit, and be installed at least 27-1/2 inches away from the outdoor unit to allow for airflow. Ocean winds Windbreaker Ocean winds Planning for Snow and Ice In climates that experience snow buildup, place the unit on a raised platform to ensure proper condenser airflow. The raised support platform must be high enough to allow the unit to remain above possible snow drifts. Mount the unit on a field-provided snow stand at a minimum height that is equal to the average annual snowfall, plus 20 inches. Design the mounting base to prevent snow accumulation on the platform in front or back of the unit case. If necessary, provide a field fabricated hood to keep snow and ice and/or drifting snow from accumulating on the coil surfaces. Use inlet and discharge duct or hoods to prevent snow or rain from accumulating on the fan inlet and outlet guards. Best practice prevents snow from accumulating on top of the unit. Consider tie-down requirements in case of high winds or where required by local codes. 354 APPLICATION GUIDELINES

355 PLACEMENT CONSIDERATIONS Outdoor Unit Platform Requirements Figure 44: Outdoor Unit Foundation Requirements. Unit: Inch Unit: Inch Minimum 3-15/16 Minimum 3-15/16) 21-1/2 Minimum 14-9/16 LMU18CHV and LMU24CHV Outdoor Table 324: Outdoor Unit Foundation Specifications. Outdoor Unit Type Bolt Type Concrete Height Bolt Depth LMU18CHV, LMU24CHV, LMU36CHV M10-J Minimum 3-15/16 inches Minimum 2-3/4 inches LMU540HV M10-J Minimum 7-7/8 inches Minimum 2-3/4 inches Minimum 7-7/8 21-1/2 Minimum 14-9/16 LMU36CHV Outdoor Unit: Inch Application Guidelines Bolting the Outdoor Unit to the Platform 1. Ensure that the concrete platform will not degrade easily, and has enough strength to bear the weight of the unit. 2. Include an H-beam support. Firmly attach the corners, otherwise the support will bend. 3. Use a hexagon nut. 4. Use anti-vibration material. 5. Include enough space around the concrete foundation for condensate drainage. 6. Seal all wiring and piping access holes to prevent bugs from entering the unit. Concrete Platform Specifications Concrete foundations should be made of one part cement, two parts sand, and four parts gravel. The surface of the foundation should be finished with mortar with rounded edges, and weatherproofed. Anchor Bolt Figure 45: Bolting the Outdoor Unit to the Platform. Bolt Bolt M10 7-7/8 15-3/4 Minimum 24-13/32 LMU540HV Outdoor Bolt Top of Outdoor Unit (Looking Down) Figure 46: Close up of Bolt Attachment. Bolt Refrigerant Pipe Connection Location 13/16 2-3/4~4 23/32 Unit: Inch APPLICATION GUIDELINES 355

356 PLACEMENT CONSIDERATIONS Multi F and Multi F MAX Indoor Unit Engineering Manual Tie-Downs and Lightening Protection Tie-Downs The strength of the roof must be checked before installing the outdoor units. If the installation site is prone to high winds or earthquakes, when installing on the wall or roof, securely anchor the mounting base using a field-provided tie-down configuration approved by a local professional engineer. The overall tie-down configuration must be approved by a local professional engineer. Always refer to local code when using a wind restraint system. Lightening Protection To protect the outdoor unit from lightning, it should be placed within the specified lightning safety zone. Table 325: Safety Zone Specifications. Building Height (feet) Protection Angle ( ) Power cable and communication cable should be installed five (5) feet away from lightning rod. A high-resistance ground system should be included to protect against induced lightning or indirect strike. Minimum 11-13/16 Minimum 11-13/16 Sunroof Figure 47: Lightening Protection Diagram. Lightning rod Lightning rod Protection Angle (25 ~55 ) 51.5m feet Ground Safe zone If the building does not include lightning protection, the outdoor unit may be damaged from a lightening strike. Inform the customer of this possibility in advance. Outdoor Unit Service Access and Allowable Clearances Appropriate airflow through the outdoor unit coil is critical for proper unit operation. Include enough space for airflow and for service access. If installing multiple outdoor units, avoid placing the units where the discharge of one unit will blow into the inlet side of an adjacent unit. No obstacles to air circulation around the unit; keep proper distances from ceilings, fences, floor, walls, etc. (Install a fence to prevent pests from damaging the unit or unauthorized individuals from accessing it.) If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that the discharge air of the outdoor unit isn t restricted. When installing the outdoor unit, consider service, inlet, and outlet, and minimum allowable space requirements as illustrated in the following diagrams. Minimum 11-13/16 Strong wind Strong wind Fence or obstacles Ensure that the space at the back of the outdoor unit is a minimum of 11-13/16 inches, and include a minimum of 23-5/8 inches at the right side of the unit for service. Minimum 11-13/16 Minimum 23-5/8 Air inlet grille Blown air Minimum 19-1/16 Unit: Inch If the outdoor unit discharge side faces a wall, include a minimum of 19-11/16 inches between the outdoor unit and the wall. Install the outdoor unit so that the discharge port is set at a right angle to the wind direction. 356 APPLICATION GUIDELINES

357 Minimum 39-3/8" Minimum 39-3/8" Minimum 39-3/8" PLACEMENT CONSIDERATIONS Clearance Requirements when Different Obstacles are Present (Unit: Inch). Obstacle on the suction side only. Obstacles on the suction side and on both left and right sides. Minimum 19-11/16" Minimum 11-13/16" Minimum 11-13/16" Minimum 23-19/32" Obstacles above and on the air intake side. Obstacles above, on the air intake side, and on both left and right sides Maximum 19-11/16" Minimum 11-13/16" Application Guidelines Minimum 11-13/16" Minimum 11-13/16" Minimum 23-19/32" Minimum 11-13/16" Obstacle just on the air discharge side. Obstacles above and on the air discharge side. Minimum 19-11/16" Minimum 19-11/16" Minimum 19-11/16" APPLICATION GUIDELINES 357

358 Minimum 39-3/8" PLACEMENT CONSIDERATIONS Multi F and Multi F MAX Indoor Unit Engineering Manual Clearance Requirements when Different Obstacles are Present, continued. (Unit: Inch) Where there are obstacles on both suction and discharge sides (discharge side obstacle is higher than the outdoor unit). Minimum 19-11/16" Minimum 11-13/16" Where there are obstacles on both suction and discharge sides (discharge side obstacle is lower than the outdoor unit). Series installation Minimum 19-11/16" Minimum 11-13/16" Where there are obstacles above, and on both suction and discharge sides (discharge side obstacle is higher than the outdoor unit). H Maximum 19-11/16" A Maximum 19-11/16" L Minimum 39-3/8" L Minimum 11-13/16" Minimum 39-3/8" Table 326: Ratio among H, A, and L. L A 0 < L 1/2 H 29-1/32 inches L H 1/2 H < L 39-3/8 inches H < L Set Stand as: L H If a stand is necessary, it should be contained (not open frame) to prevent the discharge air from short cycling. Where there are obstacles above, and on both suction and discharge sides (discharge side obstacle is lower than the outdoor unit). H Minimum 11-13/16" L should be lower than H. If a stand is necessary, it should be contained (not open frame) to prevent the discharge air from short cycling. Minimum 78-3/4" Minimum 11-13/16" Minimum 39-3/8" Minimum 23-19/32" 358 APPLICATION GUIDELINES

359 REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES Design Guideline Summary on page 360 Creating a Balanced / Quality Piping System on page 362 Manual Layout Procedure on page 362 LG Engineered Multi F MAX Y-Branch Kits on page 363 Refrigerant Charge on page 364 Selecting Field-Supplied Copper Tubing on page 366 Refrigerant Piping System Layout on page 368 Piping Insulation on page 376 Condensate Drain Piping on page 377 Cut Sheet on page 379

360 REFRIGERANT PIPING DESIGN Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Device Connection Limitations The minimum number of connected and operating indoor units to Multi F / Multi F MAX systems is two, taking into consideration the minimum combination ratio. The maximum number of indoor units for each Multi F / Multi F MAX heat pump systems is: LMU18CHV = 2 LMU24CHV = 3 LMU36CHV = 4 LMU540HV = 8 Multi F and Multi F MAX Indoor Unit Engineering Manual One of the most critical elements of multi-zone systems is the refrigerant piping. The following pages list pipe length limits that must be followed in the design of Multi F and Multi F MAX refrigerant pipe systems: Using Refrigerant Components Field-supplied elbows are allowed as long as they are designed for use with R410A refrigerant. The designer, however, should be cautious with the quantity and size of fittings used, and must account for the additional pressure losses in equivalent pipe length calculation for each branch. The equivalent pipe length of each elbow must be added to each pipe segment. Multi F System Example: LMU36CHV outdoor unit with four (4) indoor units connected. ODU: Outdoor Unit. IDU: Indoor Unit. A, B, C, D: Pipes from Outdoor Unit to Indoor Unit. Max feet Table 327:Equivalent Piping Length for Elbows, Y-branches, and Branch Distribution. Component Size (Inches) 1/4 3/8 1/2 5/8 3/4 Elbow (ft.) Y-Branch Kit (ft., Multi F MAX systems only) Branch Distribution Unit (ft., Multi F MAX systems only) Kit contains two Y-branches: one for liquid and one for vapor. A B C Max feet D Table 328:Multi F Outdoor Unit Refrigerant Piping System Limitations. Outdoor Unit Minimum Length for Each Maximum Piping Length to Each Indoor Unit (ft.) Pipe (ft.) A B C D Maximum Total Piping Length for Each System (ft.) LMU18CHV LMU24CHV LMU36CHV DESIGN & PRACTICES

361 REFRIGERANT PIPING DESIGN Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Multi F MAX System with One Branch Distribution Unit Example: LMU540HV outdoor unit with four (4) indoor units, and one (1) branch distribution unit connected. ODU: Outdoor Unit. IDU: Indoor Unit. BDU: Branch Distribution Unit. A: Main Pipe. B: Branch Pipe (Branch Distribution Unit to Indoor Unit[s]). Example: LMU540HV outdoor unit with seven (7) indoor units, and two (2) branch distribution units connected. ODU: Outdoor Unit. IDU: Indoor Unit. BD: Branch Distribution Unit(s). ΣA: Main Pipe. ΣB: Branch Pipe (Branch Distribution Unit[s] to Indoor Unit[s]). ODU h feet h feet Table 329: Multi F MAX Outdoor Unit Refrigerant Piping System Limitations. Pipe Length (ELF = Equivalent Length of pipe in Feet) Elevation Differential (All Elevation Limitations are Measured in Actual Feet) h feet Total piping length (ΣA + ΣB) Main pipe (Outdoor Unit to Minimum Branch Distribution : ΣA) Maximum Total branch piping length (ΣB) Branch pipe (Branch Distribution to Indoor : B) Maximum Minimum If outdoor unit is above or below indoor unit (h1) Between the farthest two indoor units (h2) Between branch distribution unit and farthest connected indoor unit(s) (h3) Between branch distribution units (h4) A A A h feet Multi F MAX System with Two Branch Distribution ODU Y-Branch A BDU feet 10 feet feet feet 10 feet 49.2 feet 98.4 feet 42.9 feet 32.8 feet 42.9 feet BDU BDU B B B B B B B B B B B IDU IDU IDU IDU IDU IDU IDU h feet IDU IDU IDU IDU h feet Table 330: Multi F MAX Piping Sizes. Piping Main Pipe A (inch) Branch Pipe B h feet Liquid Ø3/8 Depends on the size Gas Ø3/4 of the indoor unit piping Refrigerant Piping Design and Best Practices DESIGN & PRACTICES 361

362 REFRIGERANT PIPING DESIGN Creating a Balanced System / Manual Layout Procedure Creating a Balanced / Quality Piping System Unlike designing duct-work or chilled and hot water pipe systems where balancing dampers, ball valves, orifices, circuit setters, or other flow control devices can be installed to modify or balance the flow of cooling medium, these cannot be used in a Multi F system. Therefore, variable refrigerant flow systems have to be designed to be self balanced. Balanced liquid refrigerant distribution is solely dependent on the designer using the correct pipe size for each segment. Pipe sizing considerations include pipe length, pipe segment pressure drop relative to other pipe segments in the system, type and quantity of elbows, bends present, fitting installation orientation, and end use device elevation differences. Multi F and Multi F MAX Indoor Unit Engineering Manual The designer should avoid creating excessive pressure drop. When liquid refrigerant is subjected to excessive pressure drop, liquid refrigerant will change state and flash to vapor. Vapor present in a stream of liquid refrigerant before reaching the indoor unit coil (or branch distribution unit for Multi F MAX systems) results in a loss of system control and causes damage to the components. The pipe system must be designed in a manner that avoids the creation of unwanted vapor. Refrigerant Piping System Verification To ensure that the refrigerant piping design is suitable for the system, a LATS refrigerant piping design software report must be provided with every Multi F order. Following the installation, if any changes or variations to the design were necessary, an as-built LATS piping design software report must be provided to LG prior to system commissioning. User should always check the LATS report actual pipe layout versus pipe limits. Any field changes, such as re-routing, shortening or lengthening a pipe segment, adding or eliminating elbows and/or fittings, re-sizing, adding, or eliminating indoor units, changing the mounting height or moving the location of a device or fitting during installation should be done with caution and ALWAYS VERIFIED in LATS SOFTWARE before supplies are purchased or installed. Doing so ensures profitable installation, eliminates rework, and ensures easier system commissioning. Manual Layout Procedure 1. Choose the location of the indoor units on the building drawing. 2. Choose the location of all Y-branch and branch distribution units (if a Multi F MAX system) and note them on the building drawing. Verify that all fittings are positioned per the guideline limitations set forth in Y-branch Kits on page Plan the route for interconnecting piping. Draw a one-line depiction of the pipe route chosen on the building drawing. 4. Calculate the actual length of each pipe segment and note it on the building drawing. 5. Using the data obtained while selecting the system components, list the corrected cooling capacity next to each indoor unit on the drawing. 6. Starting at the indoor unit located farthest from the outdoor unit, sum the corrected cooling capacity of all indoor units served by the pipe segment for each branch and runout pipe (indoor units and branch distribution units [Multi F MAX systems only]). Record these values next to each segment. 7. Verify the size of the liquid and vapor lines. 8. If a Multi F MAX system, refer to Cut-Sheets Y-branch Kits on page 379 and branch distribution units on page 373 to verify the part number of each Y-branch and branch distribution unit based on the connected downstream nominal capacity served. 9. Calculate the equivalent pipe length in feet of each pipe segment. If a Multi F MAX system, Y-branch equivalent lengths should be totaled with the upstream segment only. Use equivalent pipe length data when it is provided with field-purchased fittings. If not available, use the data provided on page 360 to estimate the equivalent length of field-provided pipe and fittings for each segment. Equivalent lengths should be totaled with the upstream segment only. 10. Verify if the equivalent pipe length complies with the limitations in the Multi F and Multi F MAX Refrigerant Piping System Limitations tables on pages 360 and 361. If the limitations are exceeded, either reroute the pipe or change the location of the indoor unit, Y-branch fittings and branch distribution units (if Multi F MAX systems), so the design conforms with all limitations. 11. If adjusted as per Step 10 above, verify again if the length of the design complies with the limitations set in Multi F and Multi F MAX Refrigerant Piping System Limitations tables on pages 360 and Verify that the manually sized pipe design is acceptable using LATS Multi F. When entering the length of pipe segments in LATS Multi F software, enter the equivalent pipe length. Account for the additional pressure drop created by elbows, valves, and other fittings present in each segment by adding their respective equivalent pipe length to the actual pipe length. 362 DESIGN & PRACTICES

363 REFRIGERANT PIPING DESIGN LG Engineered Multi F MAX Y-Branch Kit Multi F MAX Y-Branch Kit PMBL5620 The LG supplied Y-Branch Kit PMBL5620 MUST be used when two branch distribution units are connected on one Multi F MAX system. Field-supplied fittings are not permitted. Each Y-Branch kit comes with two (2) Y-branches (one for the liquid line and one for the vapor line) and insulation covers. Y-branches may be installed in horizontal or vertical configurations. When installed vertically, position the Y-branch so the straightthrough leg is ±3 of plumb. When installed horizontally, position the Y-branch so the take-off leg is level and shares the same horizontal plane as the straight-through leg ±10 rotation. Y-branches must be properly installed following instructions in the applicable LG manual. Y-branches should always be installed with the single port facing the outdoor unit and the two-port end facing the branch distribution units. Do not install Y-branches backwards as refrigerant flow cannot make U-turns. The Y-branch kit must be located at least three (3) feet from the outdoor unit. Provide a minimum of 20 inches between a Y-branch and the branch distribution unit. It is recommended that when a Y-branch is located in a pipe chase or other concealed space, access doors should be provided for inspection access. The equivalent pipe length of each Y-branch (1.6 ) must be added to the main pipe segment entered into LATS piping design software. Figure 50:Horizontal Configuration End View. Horizontal plane Within 10 Figure 48:Y-Branch Connections. To Outdoor Unit Ø3/4 To Branch Distribution Unit Ø3/4 Ø3/4 Table 331:Y-Branch Connection Diameters. Model Y-Branch Port Identifier (inch) Dimensions Type X Y PMBL5620 Liquid 3/8 3/8 3/ Vapor 3/4 3/4 3/ Figure 49:Y-Branch Dimensions Diagram. A 1 X To Outdoor Unit Ø3/8 Design pressure is 551 psig. All dimensions in inches. Tolerance ±1/4 inch. Images are not to scale. Figure 51:Y-branch Installation Alignment Specification. Vertical Up Vertical Down Configuration Configuration 3 2 Y B To Branch Distribution Unit Ø3/8 Ø3/8 A = To Outdoor Unit B = To Branch Distribution Unit Refrigerant Piping Design and Best Practices A Viewed from A in direction of arrow Y-Branch Kit Insulation Each Y-branch kit comes with clam-shell type peel-and-stick insulation jackets molded to fit the Y-branch fittings one for the liquid line, one for the vapor line. Check the fit of the Y-branch clam-shell insulation jacket after the Y-branch is installed. Mark the pipe where the insulation jacket ends. Remove the jacket. Install field-provided insulation on the pipes first. Peel the adhesive glue protector slip and install the clam-shell jacket over the fitting Within ± 3 Y-Branch Kit Insulation Within ± 3 Figure 52:Y-branch Insulation Detail. Liquid and Gas Pipe Joints Field-Supplied Insulation Tape Insulation for Field-Installed Piping DESIGN & PRACTICES 363

364 REFRIGERANT PIPING DESIGN Refrigerant Charge LG Multi F and Multi F MAX outdoor units ship from the factory with a charge of R410A refrigerant. A trim charge may need to be added to take into account additional piping length. To determine the additional refrigerant that is needed, apply the formulas below, and record the results. If the total additional refrigerant charge value is a negative number, then an additional trim charge does not need to be added to the system. Table 332:Outdoor Unit Factory Charge. Outdoor Unit Factory Charge lbs. of R410A LMU18CHV 3.96 LMU24CHV 3.96 LMU36CHV 6.18 LMU540HV 9.7 Multi F and Multi F MAX Indoor Unit Engineering Manual Multi F Systems Additional charge (lbs.) Outdoor Unit Model = (Installed Length of Branch [A] Chargeless Pipe Length [L]) x a + (Installed Length of Branch [B] Chargeless Pipe Length [L]) x a + (Installed Length of Branch [C] Chargeless Pipe Length [L]) x a + (Installed Length of Branch [D] Chargeless Pipe Length [L]) x a - CF (Correction Factor) x 5.29 Number of installed length of branches depends on the specifications of the outdoor unit model. CF = Maximum number of connectable indoor units Total number of connected indoor units. Table 333:Multi F Outdoor Unit Piping Specifications. Min. to Max. Piping Length for One Branch (ft.) Max. Total System Piping Length (ft.) Chargeless Pipe Length per Branch (L) (ft.) Additional Charge Needed (a) (oz./ft.) LMU18CHV 10 to LMU24CHV 10 to LMU36CHV 10 to Figure 53:Multi F Additional Refrigerant Charge Example. A B 9,000 9,000 Each branch pipe A = 82 ft. B = 16 ft. C = 49 ft. Example: LMU36CHV C 9,000 Additional Charge = ( ) x ( ) x ( ) x (4-3) x 5.29 = oz. 364 DESIGN & PRACTICES

365 REFRIGERANT PIPING DESIGN Refrigerant Charge Multi F MAX Systems Additional charge (lbs.) = (Total Main Piping Length [A] - Chargeless Pipe Length of Main Pipe [L]) x a + (Installed Length of Branch [B1] Chargeless Pipe Length [B]) x b + (Installed Length of Branch [B2] Chargeless Pipe Length [B]) x b + (Installed Length of Branch [B3] Chargeless Pipe Length [B]) x b... - CF (Correction Factor) x 3.53 Number of installed length of branches depends on system specifications. CF = Maximum number of connectable indoor units Total number of connected indoor units Table 334:Multi F MAX Outdoor Unit Piping Specifications. Outdoor Unit Model Chargeless Pipe Length of Main Pipe (L) (ft.) Main Piping Length Additional Charge Needed (a) (oz./ft.) Chargeless Pipe Length per Branch Pipe (B) (ft.) Branch Piping Length Additional Charge Needed (b) (oz./ft.) LMU540HV Figure 54:Multi F MAX Additional Refrigerant Charge Example. LMU540HV A A A BD Unit BD Unit B1 B3 18,000 9,000 9,000 B4 B2 B5 9,000 18,000 Total main pipe (A) = 60 ft. Each branch pipe B1 = 49 ft. B2 = 17 ft. B3 = 17 ft. B4 = 10 ft. B5 = 23 ft. Additional Charge = ( ) x ( ) x ( ) x ( ) x ( ) x ( ) x 0.22 (8-5) x 3.53 = oz. Refrigerant Piping Design and Best Practices DESIGN & PRACTICES 365

366 REFRIGERANT PIPING DESIGN Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi V products will be marked R410 RATED along the length of the tube. Drawn temper (rigid) ACR copper tubing is available in sizes 3/8 through 2-1/8 inches (ASTM B 280, clean, dry, and capped). Annealed temper (soft) ACR copper tubing is available in sizes 1/4 through 2-1/8 inches (ASTM B 280, clean, dry, and capped). Tube wall thickness should meet local code requirements and be approved for a maximum operating pressure of 551 psi. When bending tubing, use the largest radii possible to reduce the equivalent length of installed pipe; also, bending radii greater than ten (10) pipe diameters can minimize pressure drop. Be sure no traps or sags are present when rolling out soft copper tubing coils. Multi F and Multi F MAX Indoor Unit Engineering Manual Table 335: ACR Rated Copper Tubing Material. Type Seamless Phosphorous Deoxidized Class UNS C12200 DHP Straight Lengths H58 Temper Coils O60 Temper Copper Expansion and Contraction Under normal operating conditions, the vapor pipe temperature of a Multi F system can vary as much as 180 F. With this large variance in pipe temperature, the designer must consider pipe expansion and contraction to avoid pipe and fitting fatigue failures. Refrigerant pipe, along with the insulation jacket, form a cohesive unit that expands and contracts together. During system operation, thermal heat transfer occurs between the pipe and the surrounding insulation. If the pipe is mounted in free air space, no natural restriction to movement is present if mounting clamps are properly spaced and installed. When the refrigerant pipe is mounted underground in a utility duct stacked among other pipes, natural restriction to linear movement is present. In extreme cases, the restrictive force of surface friction between insulating jackets could become so great that natural expansion ceases and the pipe is fixed in place. In this situation, opposing force caused by change in refrigerant fluid/vapor temperature can lead to pipe/fitting stress failure. The refrigerant pipe support system must be engineered to allow free expansion to occur. When a segment of pipe is mounted between two fixed points, provisions must be provided to allow pipe expansion to naturally occur. The most common method is the inclusion of expansion Loop or U-bends mounted in the horizontal plane. When expansion loops are placed in a vertical riser, the loop is to be formed in a horizontal fashion resulting in a torsional movement during expansion and contraction. Each segment of pipe has a natural fixed point where no movement occurs. This fixed point is located at the center point of the segment assuming the entire pipe is insulated in a similar fashion. The natural fixed point of the pipe segment is typically where the expansion Loop or U-bend should be. Linear pipe expansion can be calculated using the following formula: LE = C x L x (T r T a ) x 12 LE = Anticipated linear tubing expansion (in.) C = Constant (For copper = 9.2 x 10-6 in./in. F) L = Length of pipe (ft.) T R = Refrigerant pipe temperature ( F) T a = Ambient air temperature ( F) 12 = Inches to feet conversion (12 in./ft.) 366 DESIGN & PRACTICES Table 336: ACR Rated Piping Tube Thicknesses. OD (in) 1/4 3/8 1/2 5/8 3/4 Material Rigid or Soft ACR Acceptable Rigid or Solid ACR Rated for R410A Min. Bend Radius (in) Min. Wall Thickness (in) From Table 337, find the row corresponding with the actual length of the straight pipe segment. 2. Estimate the minimum and maximum temperature of the pipe. Typical pipe temperature change range: High Pressure Vapor: ambient temperature to 215 F; Low Pressure Vapor: ambient to 35 F; Liquid pipe: ambient, 80 F, 110 F. Choose the two most extreme. In the column showing the minimum pipe temperature, look up the anticipated expansion distance. Do the same for the maximum pipe temperature. 3. Calculate the difference in the two expansion distance values. The result will be the anticipated change in pipe length. Example: A Multi F MAX system is installed and the design shows that there is a 100 foot straight segment of tubing between a Y-branch and a branch distribution unit. The system operates 24 hours per day. In heating, this pipe transports hot gas vapor to the indoor units at 120 F. In cooling, the same tube is a suction line returning refrigerant vapor to the outdoor unit at 40 F. Look up the copper tubing expansion at each temperature and calculate the difference. Vapor Line Transporting Hot Vapor: 100 ft. pipe at 120 F = 1.40 in. Transporting Suction Vapor: 100 ft. pipe at 40 F = 0.40 in. Anticipated Change in Length: 1.40 in in. = 1.00 in. Liquid Line The liquid temperature remains the same temperature; only the direction of flow will reverse. Therefore, no significant change in length of the liquid line is anticipated. When creating an expansion joint, the joint depth should be a minimum of two times the joint width. Although different types of expansion arrangements are available, the data for correctly sizing an expansion loop is provided in Table 338. Use soft copper with long radius bends on longer runs or long radius elbows for shorter pipe segments. Using the anticipated linear expansion (LE) distance calculated, look up the Expansion Loop or U-bend minimum design dimensions. If other types of expansion joints are chosen, design per ASTM B-88 Standards.

367 INSTALLATION & LAYOUT BEST PRACTICES Selecting Field-Supplied Copper Tubing Table 337: Linear Thermal Expansion of Copper Tubing in Inches. Pipe Fluid Temperature F Length Pipe length baseline temperature = 0 F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, Figure 55:Coiled Expansion Loops and Offsets (Plan View shown). L Large Tubing U-bend (>3/4 in.) R L Loop Small Tubing U-bend (<3/4 in.) Table 338:Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets. Nominal Tube Size (OD) inches Anticipated Linear Expansion (LE) (inches) 1/4 3/8 1/2 3/4 R 1/ L R L R 1-1/ L R L R 2-1/ L R L R 3-1/ L R L R = Centerline Length of Pipe. 2 L = Centerline Minimum Radius (inches). R L Refrigerant Piping Design and Best Practices All expansion Loops and Offsets should be installed in the horizontal plane to prevent the possibility of trapping oil. Loops and Offsets in vertical risers should also be installed in a horizontal plane. DESIGN & PRACTICES 367

368 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F and Multi F MAX Indoor Unit Engineering Manual Field-Provided Isolation Ball Valves LG recommends installing field-supplied ball valves with Schrader ports at each indoor unit. Full-port isolation ball valves with Schrader ports (positioned between valve and indoor unit) rated for use with R410A refrigerant should be used on both the liquid and vapor lines. If valves are not installed and a single indoor unit needs to be removed or repaired, the entire system must be shut down and evacuated. If isolation ball valves are installed, and an indoor unit needs to be repaired, the unaffected indoor units can remain operational with the proper combination ratio. Reclamation of refrigerant, then, can be restricted to a single indoor unit. For Multi F MAX systems, position valves with a minimum distance of three (3) to six (6) inches of pipe on either side of the valve, and placed between six (6) and twelve (12) inches from the first upstream Y-branch or branch distribution unit. If ball valves are installed away from the first Y-branch and / or branch distribution unit and closer to the indoor unit, oil may accumulate where it cannot be returned to the outdoor unit and may cause a shortage of oil in the compressor. Valves shall be easily accessible for service. If necessary, install drywall access doors or removable ceiling panels, and position the valves to face the access door or ceiling panel opening. Mount valves with adequate space between them to allow for placement of adequate pipe insulation around the valves. Recommended best practice is to clearly label and document locations of all service valves, Y-branches, and branch distribution units. The equivalent pipe length of each ball valve must be added to each pipe segment entered into the LATS program. Obstacles When an obstacle, such as an I-beam or concrete T, is in the path of the planned refrigerant pipe run, it is best practice to route the pipe over the obstacle. If adequate space is not available to route the insulated pipe over the obstacle, then route the pipe under the obstacle. In either case, it is imperative the horizontal section of pipe above or below the obstacle be a minimum of three (3) times greater than the longest vertical rise (or fall) distance. Pipe Slope The horizontal pipe slope cannot exceed 10 up or down. Figure 56:Installing Piping Above and Below an Obstacle. Above an obstacle. Minimum 3X Below an obstacle. In-line Refrigeration Components Components such as oil traps, solenoid valves, filter-dryers, sight glasses, tee fittings, and other after-market accessories are not permitted on the refrigerant piping system between the outdoor units and the indoor / branch distribution units. Multi F and Multi F MAX systems are provided with redundant systems that assure oil is properly returned to the compressor. Sight-glasses and solenoid valves may cause vapor to form in the liquid stream. Over time, dryers may deteriorate and introduce debris into the system. The designer and installer should verify the refrigerant piping system is free of traps, sagging pipes, sight glasses, filter dryers, etc. No Pipe Size Substitutions Use only the pipe size selected by the LATS Multi pipe system design software or as conveyed in the product installation instructions. Using a different size is prohibited and may result in a system malfunction or failure to work at all. 368 DESIGN & PRACTICES

369 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Inserts and Pipe Supports Inserts An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts, pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed before support installation. Pipe Supports Figure 57:Installing an Insert Into a Concrete Beam. Insert Anti-vibration Material Nail A properly installed pipe system should be adequately supported to avoid pipe sagging. Sagging pipes become oil traps that lead to equipment malfunction. Pipe supports should never touch the pipe wall; supports shall be installed outside (around) the primary pipe insulation jacket. Insulate the pipe first because pipe supports shall be installed outside (around) the primary pipe insulation jacket. Clevis hangers should be used with shields between the hangers and insulation. Field provided pipe supports should be designed to meet local codes. If allowed by code, use fiber straps or split-ring hangers suspended from the ceiling on all-thread rods (fiber straps or split ring hangers can be used as long as they do not compress the pipe insulation). Place a second layer of insulation over the pipe insulation jacket to prevent chafing and compression of the primary insulation within the confines of the support pipe clamp. A properly installed pipe system will have sufficient supports to avoid pipes from sagging during the life of the system. As necessary, place supports closer for segments where potential sagging could occur. Maximum spacing of pipe supports shall meet local codes. If local codes do not specify pipe support spacing, pipe shall be supported a maximum of 5 feet on center for straight segments of pipe up to 3/4 outside diameter size. Wherever the pipe changes direction, place a hanger within twelve (12) inches on one side and within twelve to nineteen (12 to 19) inches of the bend on the other side. Support piping at indoor units as shown. Support Y-Branch fittings as shown. Concrete Beam Figure 58:Pipe Hanger Details. Suspension Bolt Figure 59: Typical Pipe Support Location Change in Pipe Direction. Max. 12" Refrigerant Piping Design and Best Practices Figure 60:Pipe Support at Indoor Unit. ~ 12" 19" Figure 61:Pipe Support at Y-branch Fitting. B Max. 12" Max. 12" A A + B ~ 12" 19" Max. 12" DESIGN & PRACTICES 369

370 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Examples of Supports Figure 62:U-Bolt Support with Insulation. Insulation Figure 63:O-Ring Support with Insulation. Bolt Figure 64:Saddle-Type Support. Support at Intervals Between 5 and 6-3/4 Feet Bolt Multi F and Multi F MAX Indoor Unit Engineering Manual To prevent insulation from pressing and lagging, use a cover. Sheathing 1.5t Plate PVC PVC Do not compress the insulation with the saddle-type support. If the insulation is compressed, it may tear open and allow condensation to generate during product operation. Figure 65:U-Bolt Support with an Insulated Pipe. Figure 67:One-Point Down-Stop Support (>441 lbs.). O-ring Band Plate Nut Welding Down Stop Figure 66:O-Ring Band Support with an Insulated Pipe. O-Ring Band Lags Sheathing Figure 68:Two-Point Down-Stop Support. Welding Insulated Support Band Insulated Support Band Hexagonal Nut Refrigerant Pipe 370 DESIGN & PRACTICES

371 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls, floors, and pipes buried underground be routed through a properly insulated sleeve that is sufficiently sized to provide free movement of the pipe and does not compress the insulation. Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration. Also follow federal, state, and local regulations and codes when choosing a sleeve type. Figure 69:Pipe Sleeve Options. Inside wall (concealed) Floor (fire-resistance) D A G B B F C Outside wall Outside wall (exposed) Sleeve D A B E B Roof pipe shaft G D B H Area between fire-resistant insulation and boundary wall I A 40 in Underground Refrigerant Piping Refrigerant pipe installed underground should be routed inside a vapor tight protective sleeve to prevent insulation deterioration and water infiltration. Refrigerant pipe installed inside underground casing must be continuous without any joints. Underground refrigerant pipe must be located at a level below the frost line. Table 339: Utility Conduit Sizes. Liquid Pipe 1 Vapor Pipe 1 1/2 (2.0 2,5 ) 5/8 (2-1/8 2,5 ) 3/4 (2-1/4 2,5 ) 1/4 (1.0) /8 (1-1/8) /2 (1-1/2) /8 (1-5/8) /4 (1-3/4) OD pipe diameter in inches; Values in parenthesis () indicate OD of pipe with insulation jacket. 2 Diameter of pipe with insulation. Thickness of pipe insulation is typical. Actual required thickness may vary based on surrounding ambient conditions and should be calculated and specified by the design engineer. 3 Insulation thickness (value in parenthesis) = 3/8 inch. 4 Insulation thickness (value in parenthesis) = 1 inch. 5 Insulation thickness (value in parenthesis) = 3/4 inch. For example: Diameter of Gas Piping: 1/2" Diameter of Liquid Piping: 1/4" Thickness of Gas Piping Insulation: 0.4" x 2 Thickness of Liquid Piping Insulation: 0.4" x 2 Surplus: 0.8" Sleeve diameter (total): 3.1" minimum I Diameter of penetrations shall be determined by pipe diameter plus the thickness of the insulation. 40 in J Insulation Lagging Caulk Band Water-resistant layer Sleeve with edge Lagging Mortar or other fire-resistant caulk Fire-resistant insulation When filling an access hole with mortar, cover the area with steel plate so that the insulation will not fall through. For this area, use fire-resistant materials for both the insulation and cover. (Vinyl cover should not be used.) Figure 70:Typical Arrangement of Refrigerant Pipe and Cable(s) in a Utility Conduit. Figure 71:Underground Refrigerant Piping. Vapor Line Insulation Material Liquid Line Pipe Sleeve Insulation Material Min. 18 Gauge Power/Communication Cable Refrigerant Piping Design and Best Practices DESIGN & PRACTICES 371

372 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F Outdoor Unit to Indoor Unit Piping Connections Multi F and Multi F MAX Indoor Unit Engineering Manual Avoid Pipe Damage When routing field-provided piping, avoid damaging the outdoor unit from excessive vibration. Correctly route the piping so it does not make contact with mounting bolts. Allow room for field installation. Properly insulate the liquid and gas lines separately up to the point of connection at the unit frame. See table below for Multi F outdoor unit connection types. Table 340:Outdoor Unit Piping Connections. Outdoor Unit Piping Connections LMU18CHV LMU24CHV LMU36CHV Liquid Line Connection (in., OD) x Qty. 1/4 x 2 1/4 x 3 1/4 x 4 Vapor Line Connection (in., OD) x Qty. 3/8 x 2 3/8 x 3 3/8 x 4 Table 341:Indoor Unit Pipe Sizes. Indoor Unit 7,000 Btu/h 9,000 Btu/h 12,000 Btu/h 15,000 Btu/h 18,000 Btu/h 24,000 Btu/h Vapor Line Connection (in., OD) Ø3/8 Ø1/2 Liquid Line Connection (in., OD) Ø1/4 Connection sockets (included as a factory-supplied accessory with the indoor units) may need to be used when piping the indoor units to the outdoor unit. Table 342:Connection Socket Dimensions. Indoor Unit Vapor (in., OD) Liquid (in., OD) A B A B 18,000 Btu/h Ø3/8 Ø1/2, Ø1/2 Ø5/8 Ø1/4 Ø5/8 24,000 Btu/h Ø3/8 Ø1/2 N/A Figure 73:Connection Socket Diagram. Flare to Outdoor Unit A Figure 74:Performing Connections. Figure 72:Multi F Refrigerant Pipe Connections (LMU36CHV shown as example). Gas Piping Connections A-UNIT Liquid B-UNIT Piping Connections C-UNIT Table 343:Indoor Unit Piping Connections. Indoor Unit Vapor Line Connection (in., OD) D-UNIT Main gas valve Main liquid valve Liquid Line Connection (in., OD) 7,000 Btu/h 9,000 Btu/h 12,000 Btu/h 15,000 Btu/h 18,000 Btu/h Ø3/8 Ø5/8 Ø1/4 Ø3/8 24,000 Btu/h Ø1/2 Ø1/4 B Flare to Indoor Unit Using the Connection Socket 1. Align the center of the piping sections and tighten the flare nut by hand. 2. Tighten the flare nut with a torque wrench, using the arrows on the wrench as a guide, until a click is heard. Connection Socket (Factory-supplied with the indoor unit) 372 DESIGN & PRACTICES

373 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F MAX Outdoor Unit System Piping Connections Avoid Pipe Damage When routing field-provided piping, avoid damaging the outdoor unit from excessive vibration. Correctly route the piping so it does not make contact with mounting bolts. Allow room for field installation. Properly insulate the liquid and gas lines separately up to the point of connection at the unit frame. See table below for Multi F MAX outdoor unit connection types. Table 344:Outdoor Unit Piping Connections. Outdoor Unit Piping Connections LMU540HV Liquid Line Connection (in., OD) x Qty. 3/8 x 1 Vapor Line Connection (in., OD) x Qty. 3/4 x 1 Branch Distribution to Indoor Unit Piping Connections Install indoor unit liquid and vapor refrigerant pipes (and connection wiring) to the appropriate branch distribution ports. Clearly note on the indoor unit s refrigerant piping (liquid, vapor) which branch distribution port it is connected to (A, B, C, D). Table 345:Branch Distribution Unit Piping Connections. Branch Distribution Unit PMBD3620 PMBD3630 PMBD3640 PMBD3641 Piping Connections to Outdoor Unit Liquid (in., OD) x Qty. Ø3/8 x 1 Vapor (in., OD) x Qty. Ø3/4 x 1 Piping Connections to Indoor Liquid (in., OD) x Qty. Ø1/4 x 2 Ø1/4 x 3 Ø1/4 x 4 Ø1/4 x 3, Ø3/8 x 1 Vapor (in., OD) x Qty. Ø3/8 x 2 Ø3/8 x 3 Ø3/8 x 4 Ø3/8 x 3, Ø5/8 x 1 Table 348:Indoor Unit Pipe Sizes. Indoor Unit Vapor Line Connection (in., OD) Liquid Line Connection (in., OD) 7,000 Btu/h 9,000 Btu/h Ø3/8 12,000 Btu/h Ø1/4 15,000 Btu/h 18,000 Btu/h 24,000 Btu/h Ø1/2 36,000 Btu/h Ø5/8 Ø3/8 Figure 75:Branch Distribution Ports to Indoor. A B C D Table 346:Indoor Unit Piping Connections. Indoor Unit Vapor Line Connection (in., OD) Liquid Line Connection (in., OD) 7,000 Btu/h 9,000 Btu/h 12,000 Btu/h 15,000 Btu/h 18,000 Btu/h Ø3/8 Ø5/8 Ø1/4 Ø3/8 24,000 Btu/h Ø1/2 Ø1/4 36,000 Btu/h Ø5/8 Ø3/8 Refrigerant Piping Design and Best Practices Connection sockets (included as a factory-supplied accessory with the indoor units) may need to be used when piping the indoor units to the branch distribution unit. Figure 76:Connection Socket Diagram. Table 347:Connection Socket Dimensions. Indoor Unit Vapor (in., OD) Liquid (in., OD) A B A B 18,000 Btu/h Ø3/8 Ø1/2, Ø1/2 Ø5/8 Ø1/4 Ø3/8 24,000 Btu/h Ø3/8 Ø1/2 N/A 36,000 Btu/h Ø1/2 Ø5/8 Ø1/4 Ø3/8 Connection Socket A DESIGN & PRACTICES 373 B

374 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Multi F MAX Outdoor Unit System Piping Connections, continued. 1. Align the center of the piping sections and tighten the flare nut by hand. 2. Tighten the flare nut with a torque wrench, using the arrows on the wrench as a guide, until a click is heard. 3. Wrap insulation around the connection. Figure 77:Possible Outdoor Unit or Branch Distribution Unit to Indoor Unit Connections. Multi F and Multi F MAX Indoor Unit Engineering Manual 1. 3/8 in. to 3/8 in. Connection Flare side to indoor unit 2. 3/8 in. to 1/2 in. Ø3/8 in. Connection Ø3/8 in. Flare nut Flare side to branch distribution unit or ODU 3. 1/2 in. to 5/8 in. Connection Torque wrench Flare nut Piping Piping Ø1/2 in. Connection socket Flare side pipe from branch distribution unit or ODU Spanner Flare nut Flare side to indoor unit Ø5/8 in. Field Piping Flare nut Piping Ø3/8 in. Connection socket Flare side to branch distribution unit or ODU 4. 1/4 in. to 3/8 Connection Flare nut Piping Ø1/4 in. Connection socket Flare side to branch distribution unit or ODU Flare side to indoor unit or pipe to indoor unit Ø1/2 in. Flare side to indoor unit Ø3/8 in. 374 DESIGN & PRACTICES

375 INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Brazing Practices Keep the piping system free of contaminants and debris such copper burrs, slag, or carbon dust during installation. 1. All joints are brazed in the field. Multi F refrigeration system components contain very small capillary tubes, small orifices, electronic expansion valves, oil separators, and heat exchangers that can easily become blocked. Store pipe stock in a dry place; keep stored pipe capped and clean. Blow clean all pipe sections with dry nitrogen before assembly. Refrigerant Piping 2. Proper system operation depends on the installer using best practices and utmost care while assembling the piping system. Use adapters to assemble different sizes of pipe. Do not use flux, soft solder, or anti-oxidant agents. Use a tubing cutter; do not use a saw to cut pipe. De-burr and clean all cuts before assembly. Figure 78:Refrigerant Pipe Brazing. Pipe to be brazed Nitrogen Pressure-reducing Valve Packless Valve 3. Brazing Joints: Use a dry nitrogen purge operating at a minimum pressure of three (3) psig and maintain a steady flow. Use a 15% silver phosphorous copper brazing alloy to avoid overheating and produce good flow. Protect isolation valves, electronic expansion valves, and other heat-sensitive control components from excessive heat with a wet rag or a heat barrier spray product Flare Connection Practices Improperly installed flare connections can lead to refrigerant leaks. 1. Place a couple of drops of refrigerant oil on the opening rim of the flare before assembling. Take care not to add any contaminants. 2. Align the center of the refrigerant pipe and corresponding connection and tighten the flare nut by hand. 3. Following the guidelines as outlined in Table 347 for the amount of torque to use, tighten the flare nut with a torque wrench until the wrench clicks. Figure 79:Flare Connection, Isometric View. Indoor Unit Piping Flare Nut Figure 80:Flare Connection, Side View. Tape Field-Supplied Piping Refrigerant Piping Design and Best Practices 4. When flare is sufficiently tightened and the system has been tested for refrigerant leaks, wrap insulation around the connection. Indoor Unit Piping Flare Nut Field-Supplied Piping When tightening the flare unit with a torque wrench, ensure the direction for tightening follows the arrow on the wrench. Table 349:Torque Wrench Tightening. Piping O.D. (in.) Torque (lbs. / ft.) 1/ / / / / Figure 81:Using the Torque Wrench. Wrench Indoor Unit Piping Open-End Wrench Flare Nut Field-Supplied Piping DESIGN & PRACTICES 375

376 INSTALLATION & LAYOUT BEST PRACTICES Piping Insulation Multi F and Multi F MAX Indoor Unit Engineering Manual Refrigerant Piping System Insulation All refrigerant piping including Y-branch connections, field-provided isolation ball valves, service valves, and elbows shall be completely insulated using closed cell pipe insulation. To prevent heat loss/heat gain through the refrigerant piping, all refrigerant piping including liquid lines and vapor lines shall be insulated separately. Insulation shall be a minimum 1/2 thick, and thickness may need to be increased based on ambient conditions and local codes. All insulation joints shall be glued with no air gaps. Insulation material shall fit snugly against the refrigeration pipe with no air space between it and the pipe. Insulation passing through pipe hangers, inside conduit, and/or sleeves must not be compressed. Protect insulation inside hangers and supports with a second layer. All pipe insulation exposed to the sun and outdoor elements shall be properly protected with PVC, aluminum vapor barrier, or alternatively placed in a weather-resistant enclosure such as a pipe rack with a top cover; and meet local codes. Pay special attention to insulating the pipes installed in the ceiling plenum. LG-provided Y-branches are shipped from the factory with pre-formed peel-and-stick foam insulation jackets, with a 1.84 lb./ft. 3 density, 1/2 thickness, and meet UL94 MF-1 flammability. The design engineer should perform calculations to determine if the factory-supplied insulation jackets are sufficient to meet local codes and avoid sweating. Maximum refrigerant piping temperature is +227 F; minimum refrigerant piping temperature is -4 F. Add additional insulation if necessary. Check the fit of the insulation jacket after the header fitting and all run-out pipes are installed. Mark all pipes at the point where the insulation jacket ends. Remove the jacket. Install field provided insulation on the run-out and main trunk pipes first. Install the LG-provided insulation plugs on the ends of all unused header ports. Peel the adhesive glue protector slip from the insulation jacket and install the clam-shell jacket over the fitting. Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene (EPDM) Insulation Wall Thickness Requirements Follow locals codes when selecting EPDM insulation wall thickness. Table 350:Insulation Guidelines for Typical and Special Circumstances. Classification Air-conditioned location Non-air conditioned location 1. Typical location 2. Special location 3. Typical location 4. Special location ø1/4 inches Liquid pipe ø3/8 inches 1/2 inches 1/2 inches 1/2 inches 1/2 inches ø1/2 inches 1/2 inches 1/2 inches 1/2 inches 1/2 inches ø3/8 inches Vapor pipe ø1/2 inches ø5/8 inches ø3/4 inches 1/2 inches 3/4 inches 3/4 inches 1 inch 1. Air-conditioned, Typical location: When the piping passes through an indoor area where the indoor unit operates. Apartment, classroom, office, mall, hospital, etc. 2. Air-conditioned, Special location 1. When the location is air conditioned, but there is severe temperature/humidity difference due to high ceilings Church, auditorium, theater, lobby, etc. 2. When the location is air conditioned, but internal temperature/humidity are high Bathroom, swimming pool, locker room, etc. 3. Non-air conditioned, Typical location: When the piping passes through an indoor area where the indoor unit does not operate. Hallway or a dormitory or school, etc. 4. Non-air conditioned, Special location: If conditions 1 and 2 below are present. 1. When the piping passes through an indoor area where the indoor unit does not operate. 2. When the humidity is high and there is no air flow in the location where the piping is installed. The thickness of the above insulation material is based on heat conductivity of 0.61 Btu/in/h/ft 2 / F. 376 DESIGN & PRACTICES

377 INSTALLATION & LAYOUT BEST PRACTICES Condensate Drain Piping Condensate Drain Piping Outdoor Outdoor unit requires condensate drain piping. Condensate drain pipe is constructed with materials approved by local code. See pages 353 to 358 for information in reference to outdoor unit placement and condensate drainage. Indoor All indoor units generate water during cooling operation, therefore, how to properly handle this condensation must be considered. Some indoor units include factory-installed drain pumps; others apply the gravity drain method. Depending on the location of the indoor unit, condensation can be drained directly to the outside of the building, or a common indoor unit drainage piping system can be installed, both incorporating PVC piping. Table 351:Indoor Unit Drain Piping Specifications. Indoor Unit Drain Type Drain Pipe Diameter (OD / ID, in.) Drain Amount (gal. / min. at ft. height) Art Cool Wall-Mounted Gravity 13/16 / 5/8 Art Cool Gallery Gravity 13/16 / 5/8 Standard Wall-Mounted Gravity 13/16 / 5/8 Ceiling-Concealed Ducted 27-1/2 in. Lift Drain Pump, (Low Static and High Static) Factory Installed Ø1-1/4 / Ø Four-Way Ceiling Cassette 27-1/2 in. Lift Drain Pump, Factory Installed Ø1-1/4 / Ø Vertical-Horizontal Air Handling Unit Gravity Ø3/4 / Figure 82:Diagram of an Indoor Unit with a Gravity Drain. Drain pan Metal clamp Flexible drain hose Insulation Insulation PVC elbow Drain pump PVC 1/50~1/100 slope PVC Flexible hose Ensure the indoor unit, refrigerant piping, power wiring / communication cables, and drain piping is properly supported with anchor bolts and clamp hangers positioned at 3.3 to 4.9 foot intervals. Flexible Drain Hose Some indoor units include a factory-provided flexible drain pipe for installation. Install the flexible drain pipe as straight as possible; sharp angles may cause the pipe to deteriorate and may crack over time. Connect the flexible drain pipe with a round clamp. If the flexible drain pipe is not installed properly, water will leak from the connection. Do not include a reverse slope in the drain connection. Figure 84:Flexible Drain Hose Connection. Clamp the Flexible Drain Hose Connection Figure 83:Diagram of an Indoor Unit with a Drain Pump. Max. 27-1/2 in /16 in. Drainage Gradient The gradient for drain piping should be at least 1/50 to 1/100. Ensure any holes through ceilings, walls, etc., are large enough to accommodate both the drain piping and any insulation. Figure 85:Drain Piping Gradient Recommendation. Indoor unit Gradient of at least 1/50~1/100 Refrigerant Piping Design and Best Practices DESIGN & PRACTICES 377

378 INSTALLATION & LAYOUT BEST PRACTICES Condensate Drain Piping Multi F and Multi F MAX Indoor Unit Engineering Manual Common Indoor Unit Drainage System It is usual work practice to connect individual indoor unit drain pipes to one common indoor unit drainage system. The diameter of the common vertical drain pipe should be as large as necessary. (For systems with <80,000 Btu/h total capacity of all connected indoor units, the standard size for the common vertical drain pipe is 0.98 ID, in. and 1.26 OD, in.) The diameter of the horizontal pipe should be the same or larger than the vertical drain pipe. To avoid property damage in the event of the primary drain becoming clogged, and to optimize drain system performance, it may be prudent to install a secondary drain line. Design the drain system to plan for winter operation (condensate line may freeze up if condensate does not properly drain away). Drain all generated condensate from the external condensate pan to an appropriate area. Install a trap in the condensate lines as near to the indoor unit coil as possible; to prevent overflow the outlet of each trap should be positioned below its connection to the condensate pan. All traps should be primed, insulated, and leak tested if located above an inhabited space. Figure 86:Example of a Common Indoor Unit Drainage System. 45 to 60 Angle 45 to 60 Angle 45 to 60 Angle 1/50 to 1/100 Slope 45 to 60 angle for protection against overflow Common horizontal drain pipe 27-1/2 in. It is recommended that a dedicated drain pipe be installed for the air conditioning system. If the indoor unit drainage system is shared with a rainwater drain, waste water, or any other type of building drain system, back flow, leaks, ice may form, or noxious odors may be present. Install a trap if the drain access to the outside faces an undesirable location (i.e., sewer), otherwise, noxious odors may infiltrate the air conditioning system. Position the vent down to prevent debris from entering the system Common vertical drain pipe Include trap at the end. Drain Leak Test A leak test should be performed 24 hours after the drainage system has been installed. Only use water for the test; other liquids are unacceptable. Figure 87:Properly Insulating the Drainage Piping. Drain Pipe Insulation To prevent condensate from forming on the drain piping, install fieldsupplied 0.4 inch thick polyethylene. The insulation should be securely fastened with all connected joints and ends properly covered. Insulation Not Required Insulation Requir ed Properly Fitting Insulation 378 DESIGN & PRACTICES

379 CUT SHEET Y-Branch Kit LG Y-Branch Kit PMBL5620 is required when installing two branch distribution units in parallel on one LG Multi F MAX system. The kit must be properly installed following instructions in the applicable LG manual. Field-supplied branch fittings are not permitted. Kit components must be kept free of debris and be dry before installation. All Y-Branch Kits include a clam shell, peel-and-stick insulation jacket. Table 353: Multi F MAX Y-Branch Connection Diameters. Model PMBL5620 Y-Branch Type Table 352:Fitting Properties. Material Design Pressure Port Identifier (inch) Liquid Ø3/8 Ø3/8 Ø3/8 Vapor Ø3/4 Ø3/4 Ø3/4 Y-Branch Type Figure 88:Y-Branch Port Identifier Diagram. 1 X Dimensions (inch) Liquid Vapor Figure 89:Y-Branch Dimensions Diagram. A 1 A = To Outdoor Unit B = To Branch Distribution Unit X Y Copper 551 psig 3 2 Y B Refrigerant Piping Design and Best Practices Table 354: Insulation Jacket Properties. Material Polyolefin Foam UL94 Flame Classification HF-1 Density 1.84 lbs./ft. 3 Thermal Conductivity.0208 Btu/h/ft. ºR Thickness 1/2 inch Figure 90:Y-Branch Insulation Jacket Diagram. Field-Supplied Insulation Tape Y-Branch Kit Insulation Liquid and Gas Pipe Joints Insulation for Field-Installed Piping DESIGN & PRACTICES 379

380 Multi F and Multi F MAX Indoor Unit Engineering Manual 380 DESIGN & PRACTICES

381 WIRING CONNECTIONS General Information on page 382 Power Wiring ( V) and Communications Cable Details on page 365 Indoor Unit Group Control on page 390

382 WIRING CONNECTIONS General Information Multi F and Multi F MAX Indoor Unit Engineering Manual Only qualified technicians in accordance with federal, state, and local codes, and manufacturer product diagrams and requirements should install the power wiring and communication cables. Use only copper wiring that is stranded, shielded with the wires separately insulated. Do not use a multi-conductor cable with more than five (5) wires in one (1) core. Power wiring and communications cable sizes must comply with applicable federal UL / ETL, state, and local codes. Verify that the branch switch and circuit breaker are set to OFF before installing the wiring system. Do not operate the air conditioning system until the refrigerant piping installation is complete. Operating the system before refrigerant piping is finalized may damage the compressor. Install a ground wire for the outdoor units, indoor units, and branch distribution units. Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously (circuit breaker should be resistant to electromagnetic currents). To avoid the possibility of explosion, fire, etc., do not connect the ground wiring to gas or sewage pipes, lightening rods, and telephone wires. Use clamps to prevent the wires from touching the piping. Use ring terminals to attach the wiring. Verify that all power wiring and communications cable terminals are securely attached; ensure enough slack is included in the wiring and cables to avoid damaging the connections. Use a conduit to protect the power wiring. Do not install a phase-advancing capacitor; the outdoor unit may overheat. Power Wiring and Communications Cable Installation For both Multi F and Multi F MAX systems, power is wired to the outdoor unit only. The outdoor unit will supply power to the branch distribution units (Multi F MAX systems only) and the indoor units through the power wiring / communications cable. Electrical Specifications 1. Multi F and Multi F MAX Outdoor : 1Ø, V, 60Hz 2. Indoor units / Branch Distribution (Multi F MAX systems only): 1Ø, V, 60Hz from the outdoor unit (Indoor units draw minimal power.) 3. Power supply wire type and size should be selected based on NEC and local codes. Maximum allowable voltage fluctuation ±10% of the nameplate rated value. 4. Properly ground the outdoor unit per NEC and / or local code. 5. Use only copper wiring that is stranded and shielded with the wires separately insulated. Power Wiring / Communications Cable Specifications From Multi F Outdoor to Indoor = 4 x 18AWG From Multi F MAX Outdoor to Branch Distribution = 4 x 16AWG From Multi F MAX Branch Distribution to Indoor = 4 x 18AWG Maximum Allowable Temperature for Wiring: 194 F Multi F System Maximum Cable Length: 82 ft. Multi F MAX System Maximum Cable Length: - Outdoor Unit to Branch Distribution Unit(s): ft. - Branch Distribution Unit(s) to Indoor Unit(s): 49.2 ft. Indoor Unit(s) to Wired Controller: Three-core cable Figure 91:Power Wiring to Multi F and Multi F MAX ODU. Line voltage (208/230V) GN/YL 13/16 inch Figure 92:Power Wiring and Communications Cable from the Multi F ODU to the IDUs, or from the Multi F MAX ODU to the BDUs and from the BD Unit to the IDUs. GN/YL 13/16 inch 382 WIRING CONNECTIONS

383 WIRING CONNECTIONS General Information Connecting the Power Wiring / Communications Cable Best practice dictates using ring or spade terminals to terminate power wiring at the power terminal block. If ring terminals or spade clips are not available, then: Do not terminate different gauge wires to the power terminal block. (Slack in the wiring may generate heat.) When terminating wires of the same thickness, follow the instructions demonstrated in the figures below. Firmly attach the wire; secure in a way to prevent external forces from being imparted on the terminal block. Use an appropriately sized screwdriver for tightening the terminals. Figure 93:Close up of a Typical Ring Terminal. Power Wiring Ring Terminal Do not overtighten the connections; overtightening may damage the terminals. Figure 95:Proper and Improper Power Wiring Connections. Figure 94:Close up of the Indoor Unit Terminal Block. :Copper Wire Wiring Connections Terminate multiple power wires of the same gauge to both sides. Do not terminate two wires on one side. Do not terminate different gauge wires to a terminal block. There is a risk of fire, electric shock, physical harm or injury, or death if the power wires are not properly terminated and / or firmly attached. Never apply line voltage power to the communications cable terminal block. If contact is made, the PCBs may be damaged. Always include some allowance in the wiring length when terminating. Provide some slack to facilitate removing the electrical panels while servicing. WIRING CONNECTIONS 383

384 WIRING CONNECTIONS General Information Figure 96:Multi F System General Power / Communications System Schematic. Indoor Power Supply Multi F and Multi F MAX Indoor Unit Engineering Manual Circuit Breaker Ground Wiring Outdoor Unit Figure 97:Multi F MAX System General Power / Communications System Schematic. BD Unit Power Supply Circuit Breaker BD Unit Ground Wiring Indoor Unit Outdoor Unit Secure the separate wires in the control box panel using zip ties. Secure wiring with accessory clamps so that it does not touch piping. Use a conduit for the cable Outside the unit, make sure the communications cable and the power wiring are separately shielded, otherwise, the outdoor unit operation may be affected by electrical noise and will malfunction or fail. 384 WIRING CONNECTIONS

385 WIRING CONNECTIONS Power Wiring ( V) and Communications Cable Details Find the outdoor unit terminal block by unscrewing the control access panel. Side panel of the outdoor unit has knockout holes for the conduits. After install is complete, seal up any gaps between the panel and the conduits. Clamp is included near the terminal block to help protect the connections from strain on the cables. Figure 98:Example of Power Wiring and Communications Cable Terminations. Terminal block Cord clamp Control Access Panel Screw Always have a trained technician properly ground the outdoor unit. If the outdoor unit is not properly grounded, there is a risk of electric shock. Use a conduit for the power wiring. The communications cable should be separated and isolated from the outdoor unit power wiring, computers, radio and television broadcasting facilities, as well as medical imaging equipment. Side panel Conduit hole Lock nut (field supply) Taping (for sealing) Conduit panel Connecting cable (1Ø, 208/230V) Power supply cable (1Ø, V) Indoor unit Indoor unit Indoor unit Indoor unit A B C D Wiring Connections Conduit (field supply) WIRING CONNECTIONS 385

386 WIRING CONNECTIONS Power Wiring ( V) and Communications Cable Details Figure 99: Multi F LMU18CHV System Power Wiring and Communications Cable. L1 L2 Power Supply Main Switch Multi F and Multi F MAX Indoor Unit Engineering Manual Circuit Breaker Fuse Three-wire Power Wiring (Including Ground) L1 L2 G Outdoor Unit Outdoor Unit Terminal Block L1 L2 1(L1) 2(L2) 3(A) 1(L1) 2(L2) 3(B) POWER WIRING 1(L1) 2(L2) 3 1(L1) 2(L2) 3 COMMUNICATION CABLE Indoor Unit Terminal Block Indoor Unit Terminal Block Unit A G Unit B All field-supplied wiring, components, and materials should follow national, state, and local codes and requirements. Use only stranded, shielded copper conductor. Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical noise, and motor current leakage. Do not connect the ground line to the pipes. Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously. Wiring cable size must comply with applicable national, state, and local codes. 386 WIRING CONNECTIONS

387 Wiring Connections WIRING CONNECTIONS Power Wiring ( V) and Communications Cable Details Figure 100:Multi F LMU24CHV System Power Wiring and Communications Cable. L1 L2 Power Supply Main Switch G Outdoor Unit Circuit Breaker L1 L2 G Outdoor Unit Terminal Block Fuse L1 L2 1(L1) 2(L2) 3(A) 3(B) 1(L1) 2(L2) 3(C) Three-wire Power Wiring (Including Ground) 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 Indoor Unit Terminal Block Indoor Unit Terminal Block Indoor Unit Terminal Block Unit A Unit B Unit C POWER WIRING COMMUNICATIONS CABLE All field-supplied wiring, components, and materials should follow national, state, and local codes and requirements. Use only stranded, shielded copper conductor. Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical noise, and motor current leakage. Do not connect the ground line to the pipes. Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously. Wiring cable size must comply with applicable national, state, and local codes. WIRING CONNECTIONS 387

388 WIRING CONNECTIONS Power Wiring ( V) and Communications Cable Details Figure 101:Multi F LMU36CHV System Power Wiring and Communications Cable. L1 L2 Power Supply Main Switch Multi F and Multi F MAX Indoor Unit Engineering Manual Circuit Breaker Fuse Three-wire Power Wiring (Including Ground) L1 L2 G G Outdoor Unit Outdoor Unit Terminal Block L1 L2 1(L1) 2(L2) 3(A) 1(L1) 2(L2) 3(B) 1(L1) 2(L2) 3(C) 1(L1) 2(L2) 3(D) 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 Indoor Unit Terminal Block Indoor Unit Terminal Block Indoor Unit Terminal Block Indoor Unit Terminal Block Unit A Unit B Unit C Unit D POWER WIRING COMMUNICATIONS CABLE All field-supplied wiring, components, and materials should follow national, state, and local codes and requirements. Use only stranded, shielded copper conductor. Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical noise, and motor current leakage. Do not connect the ground line to the pipes. Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously. Wiring cable size must comply with applicable national, state, and local codes. 388 WIRING CONNECTIONS

389 WIRING CONNECTIONS Power Wiring ( V) and Communications Cable Details Figure 102: Multi F MAX LMU540HV System Power Wiring and Communications Cable. L N Power Supply Main Switch Outdoor unit Three-wire Power Wiring (Including Ground) Circuit Breaker Fuse L N G Outdoor Unit Terminal Block L1 L2 1(L1 ) 2(L2 ) 3(A ) 1(L1 ) 2(L2 ) 3(B) Branch Distribution Unit (A) 1(L1) 2(L2) S 1(L1) 2(L2) S 1(L1) 2(L2) S 1(L1) 2(L2) S 1(L1) 2(L2) S 1(L1) 2(L2) S Branch Distribution Unit (B) * Same Wiring as Branch Distribution Unit (A) Wiring Connections 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3 Indoor Unit Terminal Block Indoor Unit Terminal Block Indoor Unit Terminal Block Indoor Unit Terminal Block POWER WIRING COMMUNICATIONS CABLE All field-supplied wiring, components, and materials should follow national, state, and local codes and requirements. Use only stranded, shielded copper conductor. Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical noise, and motor current leakage. Do not connect the ground line to the pipes. Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously. Wiring cable size must comply with applicable national, state, and local codes. WIRING CONNECTIONS 389

390 WIRING CONNECTIONS Indoor Unit Group Control Multi F and Multi F MAX Indoor Unit Engineering Manual Communication Cables Between Multiple Indoor Operating as a Group (Group Control) 1. If any indoor units were specified to operate in unison, use one (or multiple) three-core Group Control Kit (sold separately) containing extension and Y-splitter cables. One (1) group control cable kit for each indoor unit in the group except for the last indoor unit. 2. Always use an LG provided group control communications cable (Group Control Kit; sold separately) between the indoor unit and the wall-mounted zone controller. 3. NEVER splice, cut, or extend cable length with field provided cable. 4. A maximum of 16 indoor units can be connected to a wired remote controller (maximum wire length: 164 feet). Before running cable, decide which indoor unit will be the Master; set the remaining as Slave. The zone controller will be connected to the Master. 5. Identify each indoor unit operating as a group as Master or Slave. Adjust the pertinent DIP switch at each indoor unit. On wall mounted indoor unit models, set the assignment using the wireless remote controller. 6. Use a daisy chain configuration and connect all of the group s indoor units together starting at the Master unit. General Specifications Wired remote controllers can be connected to all indoor unit types. Wireless controllers can be used in conjunction with wired remote controllers. A dry contact unit can be connected with a central controller simultaneously. - The master indoor unit is recognized by the dry contact unit and the central controller. - Group Control only available for indoor units manufactured after February The central controller can control indoor units after setting the address of the master indoor unit only. - Slave indoor unit cannot be individually controlled by central controller. - Slave indoor unit will operate like master indoor unit. If an error occurs with the indoor unit, the error will be displayed on the wired remote controller. The following functions are available with group control: Selection of operation options (operation/mode/set temperature) Control of air flow rate (High/Medium/Low) Figure 103:Indoor Unit Group to Zone Controller Connections. On All Indoor Unit Styles CN-REMO LG Supplied On All Indoor Unit Styles CN-REMO LG Supplied Group Control Kit (PZCWRCG3) On All Indoor Unit Styles CN-REMO Cable connected to Zone Controller is the factory default connection. Table 355:Accessories Required for Group Control. Accessory Model Number Image Wired Remote Group Control Cable Assembly - Required for connecting multiple indoor units to a control group Wired Remote/Wired Remote Extension Cable - Required for extending the distance between indoor units or remote controllers in a control group PZCWRCG3 PZCWRC1 390 WIRING CONNECTIONS

391 ACRONYMS Table 356:Table of Acronyms. ABS Acrylonitrile Butadiene Styrene IAQ Indoor Air Quality AC Air Conditioner IDU Indoor Unit ACP Advanced Control Platform IUCF Indoor Unit Correction Factor ARI Air Conditioning and Refrigeration Institute KTL Korea Testing Laboratories ASHRAE American Society of Heating, Refrigeration, and Air Conditioning LATS LG Air Conditioning Technical Solution AWG American Wire Gauge LGAP LG Air Conditioner Protocol BDU Branch Distribution (Unit) MAT Mixed Air Temperature Btu/h British Thermal per hour MBh Thousands BTUs per hour CCR Corrected Ratio MCA Maximum Circuit Ampacity CDOA Coupled Dedicated MFS Maximum Fuse Size CFM Cubic Feet per Minute NEC National Electrical Code CR Combination Ratio OAT Temperature DB Dry Bulb ODU Outdoor Unit db(a) Decibels with A frequency weighting OUCF Outdoor Unit Correction Factor DDOAS Decoupled Dedicated PDI Power Distribution Indicator DFS Duct-Free Split PI Power Input DI Digital Input PTAC Packaged Terminal Air Conditioner DO Digital Output PVE Polyvinyl Ether EEV Electronic Expansion Valve RAT Return Air Temperature ELF Equivalent Length in Feet RCL Refrigerant Concentration Limit EPDM Ethylene Propylene Diene M-Class Rubber SC Sensible ESP External Static Pressure TC Total ETL Electronic Testing Laboratories VAV Variable Air Volume HACR Heating, Air Conditioning, and Refrigeration VRF Variable Refrigerant Flow H/M/L High / Medium / Low VRP Ventilation Rate Procedure Wiring Connections WIRING CONNECTIONS 391

392 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Commercial Air Conditioning Division Old Roswell Road Alpharetta, Georgia LG Electronics Products Support USA Follow the prompts for HVAC products. EM-MultiFODU Supersedes EM-MultiFODU Supersedes DFS-EM-AJ-001-US 014C25 Supersedes DFS-EM-AJ-001-US 014A03 Supersedes DFS-EM-AJ-001-US 013M09 Supersedes DFS-EM-AJ-001-US 013K30