Product Data Supplement

Transcription

1 EnergyXv2 Factory Installed Energy Recovery Centurion Commercial Rooftop Units 2 to 2 Nominal Tons with PURON (R-410A) Refrigerant and COMFORTLink Controls Product Data Supplement This manual provides product information related with the usage and application of the Centurion product series with the factory installed EnergyXv2 energy recovery system. It is to be used in conjunction with the Centurion base rooftop unit product data manual and is not intended to take the place of the base unit manual or to be a complete document by itself.

2 TABLE OF CONTENTS FEATURES AND BENEFITS OPTIONS AND ACCESSORIES MODEL NUMBER NOMENCLATURE AHRI PERFORMANCE RATINGS PHYSICAL DATA OPTIONS & ACCESSORY DATA TYPICAL SELECTION PROCEDURE CONTROLS OPERATING SEQUENCE APPLICATION DATA GUIDE SPECIFICATIONS APPENDIX APPENDIX A BASE DIMENSIONS APPENDIX B ACCESSORY DIMENSIONS APPENDIX C EXHAUST FAN PERFORMANCE APPENDIX D TYPICAL WIRING DIAGRAMS APPENDIX E ELECTRICAL DATA FEATURES AND BENEFITS The Centurion EnergyX is a factory integrated, single piece, fully tested and certified energy recovery system specifically designed for the Centurion series rooftop product family (vertical return duct only). It is factory installed on the Centurion rooftop unit and shipped as a single, integrated system. The EnergyX system uses exhaust air to provide latent and sensible energy exchange from the intake air prior to entering either the unit DX coil or heating section. This preconditioning of air allows even higher system operating efficiencies and increased comfort control. Operating cost savings of up to 4 tons per 1,000 cfm in cooling and 80,000 Btu/hour per 1,000 cfm in heating can be achieved by the EnergyX system. This also allows for a reduction in base unit capacity and installation costs, while providing lower life-cycle energy consumption during operation. The ARI Guideline V Combined Efficiency (CEF) values (analogous to a system EER value) are well above conventional packaged rooftop EER values of the same tonnage size. In addition, EnergyX units are compliant with the ASHRAE leakage rates for classification of air streams, which allows the EnergyX system to be used for bathroom or toilette exhaust airstreams. EnergyX Energy Recovery Wheel Cassette is rated in accordance with ARI 1060 and is UL/CUL certified. The EnergyX and Rooftop Unit system is ETL certified as a single system. The Centurion EnergyX v2 system includes the following standard features: Uses base unit roofcurb no additional curb or support rail is required Double wall, fully gasketed hinged access panels with quarter-turn latches. Direct drive, variable speed, intake and exhaust blower motors with backwards curved fans (except 2-6 ton CV unit which uses forward curved fans). Outdoor Air Airflow Monitoring capability with low-flow alarm indication (except 2-6 ton CV unit) CO2 sensor compatible for DCV operation (except 2-6 ton CV unit) Replaceable, exhaust and intake 2-in airflow filters Single point electrical connection for entire system (rooftop unit and ) Variable speed Exhaust Airflow Offset exhaust fan control for maintaining building pressure requirements without pressure sensing tubing Stop Jog logic that prevents dirt and contaminants from building on the wheel by rotating the wheel (units with economizer option only) LED screen for configuration, setup and balancing (except 2-6 ton Constant Volume unit). Rotary, silica gel desiccant coated energy recovery wheel Pre-assembled intake hood. Field assembled exhaust hood. Five year wheel warranty. The EnergyX v2 with its modulating airflow capability allows a designer to increase the amount of outside air significantly more than normal. Benefits of using the EnergyX v2 energy recovery system include: Reduced rooftop unit sizing - The more air that passes through the energy recovery device reduces the load (and potential unit size) on the rooftop unit s compressors and heating system Higher system cooling and heating efficiencies - Since the EnergyX v2 uses chemical conditioning as opposed to mechanical compression conditioning, the operating efficiency (RER) of the energy recovery and system (CEF) is significantly higher. Typically, the higher the airflow through the EnergyX unit, the higher the system efficiency (CEF) value. Since the EnergyX v2 also conditions ventilation air in the heating mode, the necessary amount and/or operation of the rooftop unit heat system is reduced. Reduced Base Rooftop Unit Sizing Because the EnergyX v2 pre-conditions the outside air, the base rooftop can typically be down sized for both heating and cooling modes of operation Better part-load conditioning as the EnergyX is able to modulate its airflow, the ability to match the changing zone part-load capacity (in cooling and in heating) is greatly increased.

3 Higher air change rates Larger amounts of ventilation air allows the zone air to be flushed out more often. This can contribute significantly to reduced sickness and more productive operating environments. Smaller, lighter wheel - Synthetic Silica Gel energy recovery wheels do the same (or more) work as larger, thicker, heavier (and expensive) metal wheels. Standard RTU curbs The EnergyX v2 design allows the system (RTU + module) to use the standard rooftop unit roof curb without any additional extensions or support rails. Outside Air CFM monitoring The standard Modulating EnergyX v2 features OA CFM monitoring and alarm capability. Synthetic Silica Gel Desiccant Wheels Synthetic Silica Gel Desiccant wheels do the same (or more) work as larger, thicker, heavier (and expensive) metal wheels. EnergyX v2 energy recovery wheels are AHRI 1060 performance certified. Sustainability The EnergyX unit uses an AirXchange energy wheel which is a true sustainable wheel since it can easily be cleaned outside of the unit for the life of the unit. As a result, the original factory recovery performance can be maintained and sustained throughout the life of the unit. Easily removable energy transfer matrix segments allow the wheel to survive inadvertent physical damage by being able to replace parts of the wheel, rather than the entire wheel (all units except 2-6 ton constant volume unit). OPTIONS AND ACCESSORIES The following optional features & accessories are available with the EnergyX system: Frost Protection In extremely cold climates, this option monitors wheel pressure drop and outside temperature. When outside air temperature is 20F or lower and the pressure drop measurement confirms frost build-up, the wheel activates and exhaust fan energizes to remove accumulated frost. Motor Status Switch This factory option monitors the operation of all EnergyX motors, which includes the intake, exhaust and rotating energy wheel motors. If lack of operation is detected when the motor is commanded to operate, the motor status alarm condition is activated in the rooftop unit ComfortLINK controls. Not available on 2-6 ton CV unit. Filter Maintenance Switch This factory--installed option monitors pressure drop across the outside air and exhaust air filters. If excess pressure drop is detected, the filter alarm condition is activated in the rooftop unit ComfortLINK controls. Exhaust and Outside Air filters are included. Not available on 2-6 ton CV unit. Economizer and Power Exhaust This factory option uses a modulating enthalpy economizer bypass and exhaust damper system for free cooling situations. The bypass method eliminates the need for costly and single-point failure, tilting-wheel mechanisms. 2-position OA dampers This field installed accessory uses two spring-return, two position actuators to operate a two-position damper for the intake air flow and exhaust airflows. The damper operates from the fully shut to fully open positions.

4 Centurion 48/0PG EnergyX Model Number Nomenclature Tons Position: Example: 4 8 P G D C 0 6 A A A B B Product Series FIOP Codes 48PG Single packaged CV Rooftop unit w ith Puron refrigerant and gas heat EnergyX 0PG Single packaged CV Cooling only Rooftop unit w ith - - Standard unit, No EnergyX Puron refrigerant and optional electric heat E - Low CFM EnergyX - constant volume 2-6 tons only S - Low CFM EnergyX - modulating Heat Options T - High CFM EnergyX - modulating Gas Heat Options (48PG only) V - Low CFM EnergyX - modulating w ith Motor Status sw itch Low Heat Standard Heat Exchanger - D W - High CFM EnergyX - modulating w ith Motor Status Sw itch Med Heat Standard Heat Exchanger - E X - Low CFM EnergyX - modulating w ith Frost Protection High Heat Standard Heat Exchanger - F Y - High CFM EnergyX - modulating w ith Frost Protection Low Heat Stainless Steel Heat Exchanger * - L Z - Low CFM EnergyX - modulating w / Frost Prot. & Motor Status sw itch Med Heat Stainless Steel Heat Exchanger* - M 1 - High CFM EnergyX - modulating w / Frost Prot. & Motor Status sw itch High Heat Stainless Steel Heat Exchanger* - N Factory Design Revision Electric Heat Options (0PG only) Voltage-Phase-Hz No Factory-Installed Electric Heat Low kw Factory-Installed Electric Heat - A 3-208/ Medium kw Factory-Installed Electric Heat - B - 208/ High kw Factory-Installed Electric Heat - C Base Unit Controls Coil Options Electro-Mechanical - M - - Standard Al/Cu coils Comfort Link DDC Controls - C A - Pre-coated Al/Cu condenser B - E-coated Al/Cu condenser Nominal Cooling Capacity (Tons) C - E-coated Al/Cu condenser and E-coated evaporator 2 Tons - 03 D - Cu/Cu condenser 3 Tons - 04 E - Cu/Cu condenser and Cu/Cu evaporator 4 Tons - 0 F - E-coated Cu/Cu condenser Tons - 06 G - E-coated Cu/Cu condenser and un-coated Cu/Cu evaporator 6 Tons - 07 H - E-coated Cu/Cu condenser and E-coated Cu/Cu evaporator 7. Tons - 08 J - Standard AlCu coils w ith Humidi-MiZer system 8. Tons - 09 K - Pre-coated Al/Cu condenser w ith Al/Cu Humidi-MiZer system 10 Tons - 12 L - E-coated Al/Cu condenser w ith Al/Cu Humidi-MiZer system 12. Tons - 14 N - Cu/Cu condenser w ith Al/Cu Humidi-MiZer system M - E-coated Al/Cu all coils: condenser, evap & Humidi-MiZer system P - Cu/Cu all coils: condenser, evaporator & Humidi-MiZer system Control Options Comfort Link Only Options ** Indoor Fan Options None - - A - Low Range Motor / Drive w ith Vertical Supply and Return Air Configuration CO2 Sensor - A B - Mid-Low Range Motor / Drive w ith Vertical SA/RA Return Air Smoke Detector - B C - Mid-High Range Motor / Drive w ith Vertical SA/RA CO2 Sensor, Return Air Smoke Detector - C D - High Range Motor / Drive w ith Vertical SA/RA Fan and Filter Sw itches - D J - Low Range Motor / Drive w ith Vertical SA/RA and Phase Loss CO2 Sensor, Fan and Filter Sw itches - E K - Mid-Low Range Motor / Drive w ith Vertical SA/RA and Phase Loss CO2 Sensor, Return Air Smoke Detector, Fan and Filter Sw itches - F L - Mid-High Range Motor / Drive w ith Vertical SA/RA and Phase Loss Return Air Smoke Detector, Fan and Filter Sw itches - G M - High Range Motor / Drive w ith Vertical SA/RA and Phase Loss Return and Supply Air Smoke Detectors - H E - Low Range Motor / Drive w ith Horizontal Supply & Return Air Configuration CO2 Sensor, Return and Supply Air Smoke Detectors - J F - Mid-Low Range Motor / Drive w ith Horizontal SA/RA CO2 Sensor, Fan and Filter Sw itches, RA & SA Smoke Detectors - K G - Mid-High Range Motor / Drive w ith Horizontal SA/RA Fan and Filter Sw itches, Return and Supply Air Smoke Detectors - L H - High Range Motor / Drive w ith Horizontal SA/RA N - Low Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Electro-Mechanical Only Options P - Mid-Low Range Motor / Drive w ith Horizontal SA/RA and Phase Loss None - - Q - Mid-High Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Return Air Smoke Detector - B R - High Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Return and Supply Air Smoke Detectors - H Notes * 2- ton models: low NOx combined with stainless steel exchanger ** CO2 sensor requires economizer option Additional combination restrictions may apply. Contact your Carrier Sales Representative for details.

5 Centurion 48/0PM EnergyX Model Number Nomenclature 1 2 Tons Position: Example: 4 8 P M D C 1 6 A A A B B Product Series FIOP Codes 48PG Single packaged CV Rooftop unit w ith Puron refrigerant and gas heat EnergyX 0PG Single packaged CV Cooling only Rooftop unit w ith - - Standard unit, No EnergyX Puron refrigerant and optional electric heat S - Low CFM EnergyX - modulating T - High CFM EnergyX - modulating Heat Options V - Low CFM EnergyX - modulating w ith Motor Status sw itch Gas Heat Options W - High CFM EnergyX - modulating w ith Motor Status Sw itch Low Heat Standard Heat Exchanger - D X - Low CFM EnergyX - modulating w ith Frost Protection Med Heat Standard Heat Exchanger - E Y - High CFM EnergyX - modulating w ith Frost Protection High Heat Standard Heat Exchanger - F Z - Low CFM EnergyX - modulating w / Frost Prot. & Motor Status sw itch Low Heat Stainless Steel Heat Exchanger - L 1 - High CFM EnergyX - modulating w / Frost Prot. & Motor Status sw itch Med Heat Stainless Steel Heat Exchanger - M High Heat Stainless Steel Heat Exchanger - N Factory Design Revision Electric Heat Options Voltage-Phase-Hz No Factory-Installed Electric Heat Low kw Factory-Installed Electric Heat - A - 208/ Medium kw Factory-Installed Electric Heat - B High kw Factory-Installed Electric Heat - C Base Unit Controls Coil Options Electro-Mechanical - M - - Standard coils, no Humidi-MiZer system Comfort Link DDC Controls - C B - E-coated Novation condenser only, Al/Cu evaporator C - E-coated all coils: Novation condenser & Al/Cu evaporator Nominal Cooling Capacity (Tons) - model designation E - Standard Novation condenser, Cu/Cu evaporator 1 Tons - 16 G - E-coated Novation condenser only, Cu/Cu evaporator 18 Tons - 20 H - E-coated all coils: Novation condenser & Cu/Cu evaporator 20 Tons - 24 J - Standard coils w ith Humidi-MiZer system 2 Tons - 28 L - E-coated Novation condenser only, Al/Cu evaporator & Humidi-MiZer system M - E-coated all coils: Novation condenser, Al/Cu evaporator & Humidi-MiZer system Control Options P - Standard Novation condenser, Cu/Cu evaporator & Cu/Cu Humidi-MiZer system Comfort Link Only Options ** None - - Indoor Fan Options CO2 Sensor - A A - Low Range Motor / Drive w ith Vertical Supply and Return Air Configuration Return Air Smoke Detector - B B - Mid-Low Range Motor / Drive w ith Vertical SA/RA CO2 Sensor, Return Air Smoke Detector - C C - Mid-High Range Motor / Drive w ith Vertical SA/RA Fan and Filter Sw itches - D D - High Range Motor / Drive w ith Vertical SA/RA CO2 Sensor, Fan and Filter Sw itches - E J - Low Range Motor / Drive w ith Vertical SA/RA and Phase Loss CO2 Sensor, Return Air Smoke Detector, Fan and Filter Sw itches - F K - Mid-Low Range Motor / Drive w ith Vertical SA/RA and Phase Loss Return Air Smoke Detector, Fan and Filter Sw itches - G L - Mid-High Range Motor / Drive w ith Vertical SA/RA and Phase Loss Return and Supply Air Smoke Detectors - H M - High Range Motor / Drive w ith Vertical SA/RA and Phase Loss CO2 Sensor, Return and Supply Air Smoke Detectors - J E - Low Range Motor / Drive w ith Horizontal Supply & Return Air Configuration CO2 Sensor, Fan and Filter Sw itches, RA & SA Smoke Detectors - K F - Mid-Low Range Motor / Drive w ith Horizontal SA/RA Fan and Filter Sw itches, Return and Supply Air Smoke Detectors - L G - Mid-High Range Motor / Drive w ith Horizontal SA/RA H - High Range Motor / Drive w ith Horizontal SA/RA Electro-Mechanical Only Options N - Low Range Motor / Drive w ith Horizontal SA/RA and Phase Loss None - - P - Mid-Low Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Return Air Smoke Detector - B Q - Mid-High Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Return and Supply Air Smoke Detectors - H R - High Range Motor / Drive w ith Horizontal SA/RA and Phase Loss Notes ** CO2 sensor requires economizer option Additional combination restrictions may apply. Contact your Carrier Sales Representative for details.

6 AHRI CAPACITY RATINGS Rooftop Unit Type CFM Range Wheel Nominal Pressure Drop (in-wg) CFM (OA) EFFECTIVENESS (%) 1 Sensible Latent Temp Clg Temp Htg Constant Volume Low CFM ERC PG Low CFM ERC Modulating High CFM ERC Low CFM ERC PG Modulating High CFM ERC-3628C Low CFM ERC-3628C PM Modulating High CFM ERC-4646C Low CFM ERC-3628C PM 28 Modulating High CFM ERC-262C LEGEND AHRI Air-Conditioning, Heating and Refrigeration Institute Energy Recovery Ventilator CFM Cubic Feet per Minute Clg Cooling Notes 1. Per AHRI Standard 1060

7 AHRI COMBINED EFFICIENCY FACTORS GAS HEAT S Atlanta Miami Phoenix Syracuse Rooftop Unit RTU AHRI EER Type CFM Range RTU AIRFLOW (CFM) AIRFLOW (CFM) RER CEF RER CEF RER CEF RER CEF CV Low CFM PG Modulating Low CFM Modulating High CFM CV Low CFM PG Modulating Low CFM Modulating High CFM CV Low CFM PG Modulating Low CFM Modulating High CFM CV Low CFM PG Modulating Low CFM Modulating High CFM CV Low CFM 2, PG Modulating Low CFM 2, Modulating High CFM 2,400 1, PG Modulating Low CFM 3,000 1, High CFM 3,000 3, PG Modulating Low CFM 3,400 1, High CFM 3,400 3, PG Modulating Low CFM 4,000 1, High CFM 4,000 3, PG Modulating Low CFM,000 1, High CFM,000 3, PM Modulating Low CFM 6,000 3, High CFM 6,000 6, PM Modulating Low CFM 7,200 3, High CFM 7,200 6, PM Modulating Low CFM 8,000 3, High CFM 8,000 6, PM Modulating Low CFM 10,000 3, High CFM 10,000 8, NOTES CEF = Combined Efficiency factor. As described in AHRI Guideline V, the CEF is the efficiency of a system incorporating an component with a unitary packaged air conditioner, heat pump, etc. Units vary according to the application. CEF is a dimensionless value as it may be expressed in Btu/(W h) or in W/W. CEF is calculated per ARI Guideline V calculations using nominal flow rates and temperatures. CEF is analogous to a "system EER" where the system consists of the RTU +. Actual CEF value will vary based on actual location, airflows and temperatures. Contact your Carrier Sales Engineer for additional information. CV = Constant Volume

8 Rooftop Unit RTU AHRI EER 0PG PG PG PG PG AHRI COMBINED EFFICIENCY FACTORS COOLING ONLY S Type 0PG Modulating 0PG Modulating 0PG Modulating 0PG Modulating 0PM Modulating 0PM Modulating 0PM Modulating 0PM Modulating NOTES CFM Range RTU AIRFLOW (CFM) AIRFLOW (CFM) RER Atlanta Miami Phoenix Syracuse CV Low CFM Modulating Low CFM Modulating High CFM CV Low CFM Modulating Low CFM Modulating High CFM CV Low CFM Modulating Low CFM Modulating High CFM CV Low CFM Modulating Low CFM Modulating High CFM CV Low CFM 2, Modulating Low CFM 2, Modulating High CFM 2,400 1, CEF RER CEF RER CEF RER Low CFM 3,000 1, High CFM 3,000 3, Low CFM 3,400 1, High CFM 3,400 3, Low CFM 4,000 1, High CFM 4,000 3, Low CFM,000 1, High CFM,000 3, Low CFM 6,000 3, High CFM 6,000 6, Low CFM 7,200 3, High CFM 7,200 6, Low CFM 8,000 3, High CFM 8,000 6, Low CFM 10,000 3, High CFM 10,000 8, CEF = Combined Efficiency factor. As described in AHRI Guideline V, the CEF is the efficiency of a system incorporating an component with a unitary packaged air conditioner, heat pump, etc. Units vary according to the application. CEF is a dimensionless value as it may be expressed in Btu/(W h) or in W/W. CEF is calculated per ARI Guideline V calculations using nominal flow rates and temperatures. CEF is analogous to a "system EER" where the system consists of the RTU +. Actual CEF value will vary based on actual location, airflows and temperatures. Contact your Carrier Sales Engineer for additional information. CEF CV = Constant Volume

9 PHYSICAL DATA MODULATING CAPABLE ENERGYX S Model PG 2-6 TON PG TON PM TON PM 2 TON EnergyX SIZE LOW CFM HIGH CFM LOW CFM HIGH CFM LOW CFM HIGH CFM LOW CFM HIGH CFM EnergyX TYPE Modulating Air Flow Capability Modulating Air Flow Capability Modulating Air Flow Capability Modulating Air Flow Capability Wheel OA (CFM) WHEEL EA (CFM) ECONOMIZER OPTION Max Economizer OA (CFM) 2,00 2,27 6,600 4,30 10,000 11,22 13,00 10,20 Max Economizer EA (CFM) 2,100 2,07 4,400 4,200 9,22 9,22 9,700 9,000 ENERGY RECOVERY WHEEL TYPE Enthalpy Lightweight Polymer with Silica Gel Desiccant Coating Enthalpy Lightweight Polymer with Silica Gel Desiccant Coating Enthalpy Lightweight Polymer with Silica Gel Desiccant Coating Enthalpy Lightweight Polymer with Silica Gel Desiccant Coating MODEL ERC-1904 ERC-213C ERC-213C ERC-3628C ERC-3628C ERC-4646 C ERC-3628C ERC-262C SIZE (Dia. X Depth) (in.) 19 x 1 2 x 3 2 x 3 36 x 3 36 x 3 46 x 3 36 x 3 2 x 3 DRIVE MOTOR HP N/A N/A N/A 1/20 1/20 1/6 1/20 1/6 SUPPLY FAN #1 QTY - TYPE 1 - Backward Curved 1 - Backward Curved 1 - Backward Curved 1 - Backward Curved DRIVE TYPE Direct Direct Direct Direct BLOWER SIZE 400mm 400mm 00mm 00mm 00mm MOTOR HP SUPPLY FAN #2 (Note 1) Note 1 Note Backward 1 - Backward QTY - TYPE N/A N/A N/A N/A Curved Curved DRIVE TYPE N/A N/A N/A Direct N/A Direct BLOWER SIZE N/A N/A N/A 00mm N/A 00mm MOTOR HP N/A N/A N/A 3.62 N/A 3.62 EXHAUST FAN #1 QTY - TYPE 1 - Backward Curved 1 - Backward Curved 1 - Backward Curved 1 - Backward Curved DRIVE TYPE Direct Direct Direct Direct BLOWER SIZE 400mm 00mm 00mm 00mm MOTOR HP EXHAUST FAN #2 (Note 2) Note 2 Note 2 QTY - TYPE N/A N/A 1 - Backward Curved 1 - Backward Curved DRIVE TYPE N/A N/A Direct Direct BLOWER SIZE N/A N/A 00mm 00mm MOTOR HP N/A N/A AIR FILTERS TYPE SUPPLY AIR (QTY) SIZE (in) EXHAUST AIR (QTY) SIZE (in) 2-in. Pleated, 30% Efficiency (2) 16 x 16 x 2 (2) 16 x 16 x 2 (2) 16 x 16 x 2 (2) 16 x 16 x 2 2-in. Pleated, 30% Efficiency 2-in. Pleated, 30% Efficiency 2-in. Pleated, 30% Efficiency (2) 1 x 20 x 2 (2) 20 x 20 x 2 (2) 20 x 20 x 2 (2) 20 x 20 x 2 (2) 20 x 2 x 2 (4) 16 x 2 x 2 (3) 16 x 2 x 2 (4) 16 x 2 x 2 (2) 20 x 2 x 2 (4) 16 x 2 x 2 WATER ENTRAINMENT FILTER TYPE Aluminum Mesh Aluminum Mesh Aluminum Mesh Aluminum Mesh QUANTITY SIZE (L x W)(in) 1 30 x 13 1/ /8 x 17 1/ /2 x 18 1/ /2 x 20 1/4 (3) 18 x 2 x 2 (4) 16 x 2 x 2 Notes 1. Second supply fan standard on PM 1-2 ton units with High-CFM EnergyXv2. Not applicable on PM 1-2 ton Low-CFM units. 2. Second exhaust fan standard on all units except PM 1-2 ton Low-CFM EnergyXv2 without Economizer. LEGEND Energy Recovery Unit OA Outside Air EA Exhaust Air

10 PHYSICAL DATA CONSTANT VOLUME ENERGYX S PG Model EnergyX size 2-6 TON LOW CFM EnergyX TYPE ECONOMIZER OPTION Constant Volume Airflow Wheel OA (CFM) WHEEL EA (CFM) Max Economizer OA (CFM) 2000 Max Economizer EA (CFM) 2000 ENERGY RECOVERY WHEEL TYPE MODEL (AirXchange) Enthalpy Lightweight Polymer with Silica Gel Desiccant Coating ERC-1906 SIZE (Dia. X Depth) (in.) 22. X 2 DRIVE MOTOR HP 0.10 SUPPLY FAN QTY - TYPE DRIVE TYPE FAN ISOLATION 1 - Forward Curved Direct Neoprene Rubber Pads BLOWER DIMENSIONS (in.). x. MOTOR HP 0.4 EXHAUST FAN QTY TYPE DRIVE TYPE FAN ISOLATION 1 - Forward Curved Direct Neoprene Rubber Pads BLOWER DIMENSIONS (in.). x. MOTOR HP 0.4 ECONOMIZER EXHAUST FAN * QTY - TYPE DRIVE TYPE FAN ISOLATION 2 - Forward Curved Direct Neoprene Rubber Pads BLOWER DIMENSIONS. x. MOTOR HP 0.4 FILTERS TYPE 2-in. Pleated, 30% Efficiency EXHAUST AIR (QTY) - SIZE (2) 10 x 20 x 2 SUPPLY AIR (QTY) - SIZE (1) 10 x 20 x 2 WATER ENTRAINMENT FILTER TYPE Aluminum Mesh QUANTITY 1 SIZE (L X W)(in) 37 13/16 x 8 1/2 * Economizer exhaust fan only applicable on units with the optional economizer LEGEND Energy Recovery Unit OA Outside Air EA Exhaust Air

11 OPTIONS & ACCESSORIES CATEGORY ITEM OPTION * ACCESSORY ** Dampers Motorized 2-Position OA & EA Dampers X Airflow Frost protection Motor status sensor Filter status sensor Economizer *** X X X X Roof Curbs Horizontal Return Adaptor Curb X * Factory-installed ** Field-installed *** CO2 sensor option per base rooftop unit configuration. CO2 sensor requires Modulating EnergyX with factory installed economizer. EnergyX units can be field converted to horizontal supply per conditions/restrictions of the base rooftop unit. The return configuration cannot be field converted to a horizontal configuration except through use of the Horizontal Return Adaptor Curb. NOTES: 1. Contact your local Carrier representative for accessory and option package information. 2. Some options may increase product lead times. 3. Motor status sensor and Filter Maintenance Sensor not available on 2-6 ton Constant Volume unit. 4. Additional options (including CO2 sensors) are available as part of the base rooftop unit configuration. See the applicable Centurion PG or PM product data manual. Contact your Carrier representative for additional information.

12 TYPICAL SELECTION PROCEDURE When calculating which EnergyX unit to use on a given application, it is strongly recommended that the Carrier Packaged RTU Builder (PRB) Selection Software be used. This is because there are a number of variables which become complex when manual calculations are performed, but can easily be accounted for in a computer operation. Most specifically, the AHRI certified ratings use Standard CFM values, but due to real world operation, variances in altitude and air density are very important. The Carrier PRB software uses altitude corrected airflows (ACFM). See Carrier s Packaged Rooftop Builder selection software for automated calculation of unit selection and Combined Efficiency Factor (CEF) values. Typical Energy Recovery unit selection involves the following steps: 1. Determine the zone cooling and heating requirements at the design conditions. 2. Select Energy Recovery unit based on desired outdoor airflow rate. Note: It is recommended that the outdoor airflow and exhaust airflow rates be designed at the same or close to the same value. If the difference between the two airflows becomes large enough, the energy recovery unit s cooling capacity, heating capacity and overall efficiency will be negatively impacted. 3. Calculate the Energy Recovery unit s leaving air conditions and unit capacities based on the outside airflow rate, temperature (db & wb) and exhaust airflow rate and temperatures (db and wb) at the design temperatures and maximum ventilation rate. 4. Subtract the Energy Recovery unit s cooling and heating capacities from the design zone requirements. The value that remains is the necessary design size of the rooftop unit.. Use the Energy Recovery unit s leaving air temperatures (db and wb) as the ventilation air temperatures entering the rooftop unit to be mixed with the return air before passing through the rooftop unit s evaporator. 6. After selecting the desired Energy Recovery unit and rooftop unit, use AHRI s Guideline V to calculate the Combine Efficiency Factor (system EER). Additional information on Energy Recovery capacity calculations and leaving air temperature calculations can be found in the two AHRI documents below: AHRI Guideline V CALCULATING THE EFFICIENCY OF ENERGY RECOVERY VENTILATION AND ITS EFFECT ON EFFICIENCY AND SIZING OF BUILDING HVAC SYSTEMS AHRI Standard PERFORMANCE RATING OF AIR-TO-AIR HEAT EXCHANGERS FOR ENERGY RECOVERY VENTILATION EQUIPMENT

13 CONTROLS The EnergyX v2 Energy Recovery Ventilator () module is controlled by a digital controller located inside the EnergyX chassis. It communicates with the Centurion ComfortLINK controller via a UPC translator module which connects to the Centurion rooftop unit s ComfortLINK controller via a LEN cable. All controller settings and configuration are input via the ComfortLINK scrolling marquee display. Some EnergyX v2 modules include an LED screen and adjustable control knob for use with setting outdoor airflow, exhaust airflow and CO2 setpoints. (Note: CO2 sensor requires a factory installed economizer). The EnergyX v2 energy recovery unit pre-conditions the outdoor air before it mixes with the return air and enters the rooftop unit evaporator coil. As a result, the EnergyX v2 operation is mostly independent of the rooftop unit operation except to allow the space conditioning needs to be met without RTU compressor operation or RTU heat operation for a significantly wider range of ambient temperatures (than a unit without an energy recovery module). This is achieved either by the pre-conditioning of the EnergyX v2 wheel or the economizer (if equipped). The EnergyX will pre-condition the outside air in the cooling and heating modes of operation. For more information regarding controller operation, see the EnergyX v2 Start-Up, Operations, and Troubleshooting supplement manual. FRONT VIEW Control Box Protocol converter control board with LED screen Setpoint knob & pushbutton (some models) Unit Rooftop Unit Outdoor Air Hood Accessory Control Box Optional switches & transducers Exhaust Air Hood High Voltage Control Box Front View REAR VIEW Rooftop Unit Supply Filters Unit Supply Fan(s) Wheel Assembly (Note: if optional factory installed economizer is used, economizer is on far side of wheel module) Exhaust Filters Return Air Dampers Exhaust Fan(s) Figure 1 EnergyXv2 Component Layout, Modulating Units Drawings shown with panels removed for demonstration purposes only. ( ton unit shown)

14 OPERATING SEQUENCE General The sequence below describes the sequence of operation for a Centurion unit with ComfortLINK controls and an EnergyX v2. For more information regarding controller operation, see the EnergyX v2 Start-Up, Operations, and Troubleshooting supplement manual. The EnergyX module will not activate unless the RTU fan is on. The EnergyX v2 default condition is to remain off in the unoccupied mode, however, this can be over-ridden via the control set-points. Cooling Operation When the ComfortLINK controller recognizes that the conditioned zone requires cooling (via the space temperature sensor or space thermostat) the EnergyX module is activated. The EnergyX control module follows the sequence of operation logic as listed below. Step 1 Economizer Operation First, the EnergyX module checks if the outside air is suitable for free cooling via the outside air enthalpy sensor. If the outside air is suitable for free cooling and the unit has an economizer, the EnergyX will operate in ventilation mode where the wheel will remain off but the economizer will modulate in free-cooling. If the unit is in Unoccupied mode, then the unit will not operate in economizer mode and will proceed to step-2. Step 2 Wheel Operation If the outside air is not suitable for free cooling, then the EnergyX will operate in either cooling or heating mode as called for by the rooftop unit ComfortLINK controller. Note: if the unit is in Unoccupied mode, the default configuration is that the EnergyX module will not operate. This can be over-ridden by an adjustable setpoint in the controller. Cooling Operation If the outside air is not suitable for free cooling then the EnergyX wheel will activate and the supply fan will activate per the CFM setpoint. Modulating EnergyX Units Only - If a CO2 sensor is used (connected to the RTU ComfortLINK controller) the supply fan will modulate between the DCV minimum and DCV maximum setpoints. The exhaust fan will modulate to follow the supply fan operation per the Exhaust CFM-offset value. If the economizer opens more than %, the wheel utilizes a stop-jog operation to periodically rotate the wheel and minimize potential dirt build-up and excess wear on one section of the wheel. (Note: CO2 sensor requires a factory installed economizer). Constant Volume EnergyX Units Only - A CO2 sensor cannot be used with the 2-6 ton Constant Volume EnergyX unit because it serves no purpose for constant volume energy recovery. A typical CO2 system used for Demand Control Ventilation allows the rooftop unit economizer to close below the normal minimum ventilation position unless a high CO2 signal is received. This reduces operational cost by not allowing excess ventilation air unless required due to high occupancy load. The high CO2 signal indicates the presence of larger number of occupants and a need for higher volumes of ventilation air. In this situation, the economizer would then open to a position above the normal minimum ventilation position to bring in more outdoor air. However, in a constant volume EnergyX unit, the constant volume outdoor air ventilation setting is already set at this higher volume of outdoor air. Use of a CO2 sensor would artificially reduce the pre-conditioning affect and thus reduce the efficiency of the operation. Heating Operation When the ComfortLINK controller sees that the space requires heating via the space temperature sensor or when the thermostat or calls for heating, the EnergyX module is activated. The wheel will rotate and the supply fan will activate per the CFM setpoint. Modulating EnergyX Units Only - If a CO2 sensor is used (connected to the RTU ComfortLINK controller) the supply fan will modulate between the DCV minimum and DCV maximum setpoints. The exhaust fan will modulate to follow the supply fan operation per the Exhaust CFM-offset value. Supply and Exhaust Air Frost Control Operation When the factory installed frost protection option is used, the EnergyX module will sense pressure differential across the energy recovery cassette. The supply blower will be shut-off if the pressure differential across the energy recovery cassette exceeds the adjustable set point value. The blower will remain off for minutes. The exhaust blower and wheel will remain on, in order to remove any frost build-up on the wheel. EnergyX Wheel Maintenance and Blower Indicator Operation When the optional factory installed wheel maintenance indicator is used, a proxy sensor monitors the EnergyX wheel and sends a corresponding alarm signal when appropriate. Pressure switches are used to detect and activate the unit alarm when blowers are not running. EnergyX Filter Maintenance Indicator Operation When the optional factory installed filter maintenance indicator is used, a factory--installed differential pressure switch measures pressure drop across the outside air filter and activates a field--supplied dry contact indicator when the pressure differential exceeds the adjustable switch setpoint. EnergyX operation is not interrupted.

15 APPLICATION DATA Energy Recovery Energy recovery devices such as the EnergyX typically result in substantial energy savings over other outdoor air devices. Specifically, the EnergyX adds sensible and latent capacity as well as additional stages of cooling and heating operation to the Rooftop Unit. Due to the EnergyX s significantly lower input watts than the corresponding RTU compressor(s), proper control strategies for this device maximize its operation to reduce the run time of the RTU compressor(s). This results in a much higher system efficiency than can typically be achieved by using a rooftop unit of the same total capacity. The EnergyX v2 with its modulating airflow capability allows a designer to increase the amount of outside air significantly more than normal with the following benefits: Reduced rooftop unit sizing - The more air that passes through the energy recovery device reduces the load (and potential unit size) on the rooftop unit s compressors and heating system Higher system cooling and heating efficiencies - Since the EnergyX v2 uses the power of rotary enthalpy transfer as opposed to mechanical compression conditioning of the ventilation air resulting in a much higher operating efficiency (RER) of the energy recovery unit and system Combined Efficiency Factor (CEF). The higher the airflow through the EnergyX v2, the higher the system efficiency (CEF) value. Since the EnergyX v2 also conditions ventilation air in the heating mode, the necessary amount and/or operation of the rooftop unit heat system is reduced. Better part-load conditioning as the EnergyX is able to modulate its airflow, the ability to match the changing zone part-load capacity (in cooling and in heating) is greatly increased. Higher air change rates Larger amounts of ventilation air allows the zone air to be flushed out more often. This can contribute significantly to reduced sickness and more productive operating environments. All ventilated spaces are good candidates for energy recovery systems. The applications that benefit most are those that require a large amount of outside air for a space that has a low internal load. This is true because most outside air loads are latent which requires a larger rooftop unit to accommodate both internal and ventilation loads. Advantages of the unit include the ability to reduce the size of the rooftop unit, provide better humidity levels and provide a stable, tempered space. Examples of applications are classrooms, churches, conference rooms, game rooms, auditoriums, movie theaters, day care centers, nursing homes, funeral homes, dormitories, and clinics. Retrofits of existing systems to handle outside air without modifying the rooftop unit are excellent applications. Other examples are bars, restaurants, casino/game rooms, barber/beauty shops, bingo halls, locker rooms, recreational facilities and health clubs. Animal shelters such as veterinary clinics and kennels have been very successful implementations. Retail spaces and manufacturing facilities are also good applications. If the outside air requirement is greater than 10% of a rooftop unit s supply air rating the EnergyX v2 unit should be considered to enhance the comfort of the occupants and reduce the tonnage of the rooftop unit. Carrier s Packaged RTU Builder selection software program offers a quick, simple look at the advantages and payback of the EnergyX v2 system. ASHRAE 62.1 Air Classification Requirements The EnergyX v2 allows for easy compliance with the current ASHRAE Standard 62.1 Air Classification Requirements. Pollutant transfer via Desiccant is a non issue since by virtue of the ASHRAE classes of air the main determinant is EATR or cross transfer of air by leakage from exhaust to supply. Since the EATR is an AHRI Certified measurement of an AHRI certified wheel device, the user can be assured of meeting the air dilution requirements of ASHRAE 62.1 and therefore the air classification requirements. Industrial Applications are by definition those that are Class 4 air (or worse). Most wheel manufacturers do not encourage application of wheels to these types of applications. When required, many wheel manufacturers make specialty wheels with specific mechanical purge construction for industrial applications, that can be used to field-replace the factory provided wheels. Contact the applicable wheel manufacture for specific application details. Choosing the proper airflow is essential. Unit selection guidance for the EnergyX v2 is in definite contrast to typical unit sizing and selections. Typical unit sizing methods are to select the energy recovery device per the desired amount of outdoor air and then calculate the total capacity of the resulting energy recovery unit. This capacity is then subtracted from the desired total capacity for the conditioned zone. The remaining value is the necessary capacity of the rooftop unit. By conventional cooling & heating capacity guidance, the effort is to reduce the amount of outside (ventilation air) as much as possible since this additional ventilation air results in increased load on the rooftop unit compressor and heating sections. Note that all units can be used in applications that require more or less airflow than the published CFM operating range as long as the airflow range is within the capabilities of the EnergyX v2 fan system. This option can be used for high-static applications. Although performance is optimized at equal exhaust and supply airflow rates, the selection program and the EnergyX v2 unit can be used with unequal airflow amounts. The unit must be sized for the largest airflow amount. The smaller airflow used cannot be less than 0% of the larger airflow in the published range.

16 Energy recovery wheels Carrier s EnergyX v2 energy recovery wheels consist of a welded stainless steel hub, spoke and rim assembly, which is independent of the heat transfer matrix. The heat transfer matrix is contained in patented energy transfer segments, removable from the wheel without requiring tools. The energy wheel uses a unique parallel plate geometry and polymer film substrate to provide an optimized heat exchanger design. The polymer film construction is not subject to corrosion in coastal locations or swimming pool areas. The transfer of water by adsorption/desorption is not dependent on temperature. Therefore, the silica gel enthalpy wheel works to reduce latent load at difficult part-load conditions. Silica gel technology The EnergyX v2 energy recovery wheels use the desiccant material known as silica gel, which is a highly porous solid adsorbent material that structurally resembles a rigid sponge. It has a very large internal surface composed of myriad microscopic cavities and a vast system of capillary channels that provide pathways connecting the internal microscopic cavities to the outside surface of the sponge. Silica gel enthalpy wheels transfer water by rotating between two airstreams of different vapor pressures. The vapor pressure differential drives molecules into/from these cavities to transfer moisture from the more humid airstream to the drier airstream. Adsorption: silica gel vs. molecular sieve The graph below shows the effect of Relative Humidity on Desiccant Capacity characteristic curve for adsorption of water on silica gel. It shows the percent weight adsorbed versus relative humidity of the airstream in contact with the silica gel. The amount of water adsorbed rises linearly with increasing relative humidity (RH) until RH reaches near 60%. It then plateaus at above 40% adsorbed as relative humidity approaches 100%. For contrast, the curve for molecular sieves rises rapidly to plateau at about 20% absorbed at 20% RH. The Effect of Relative Humidity on Dessicant Capacity graph explains the following application considerations: Molecular sieves are preferred for regenerated applications such as desiccant cooling and dehumidification systems that must reduce the processed airstreams to very low relative humidities. Silica gel has superior characteristics for recovering space conditioning energy from exhaust air and handling high relative humidity outside conditions. Fungal growth and moisture transfer Carrier EnergyX v2 units have silica gel-based desiccant wheels. The water molecules are individually transferred by desorption/adsorption to and from the silica gel surfaces. Water is present on the wheel in a molecular layer only, and condensation does not occur. Therefore, Carrier's energy recovery wheels experience dry moisture transfer; there is no bulk liquid water present that could support fungal growth. Water transfer to and from the wheel's desiccant surfaces occurs in the vapor phase; there are no wet surfaces and liquid water does not enter the airstream. Silica gel is also highly selective for water, based on the strong preference of the gel surface for the dipolar water molecule over other compounds.

17 Frost control requirements Energy recovery systems require frost protection or a means of defrosting in climates that experience severe winter conditions. Frost formation results in a reduction and eventual blockage of airflow through the energy wheel. Frost formation causes reduced airflow through the heat exchanger. Without frost control, energy recovery and airflow may be significantly reduced. The frost threshold temperature is the point at which frost begins to accumulate on heat exchanger surfaces. It is a function of both outside temperature and indoor relative humidity. The Frost Threshold Comparison figures compares the frost threshold of a plate-type sensible heat exchanger with that of an enthalpy wheel. Note that frost forms at temperatures between 22 F and 30 F in a plate-type heat exchanger, frost threshold temperatures for enthalpy wheels are generally 20 to 30 degrees lower, approximately 0 F to 20 F. This is because the enthalpy wheel removes water from the exhaust airstream, effectively lowering the exhaust s dew point. The water removed is subsequently picked up through desorption by the entering outdoor air. Depending on the indoor relative humidity in areas where winter outside temperatures are between F and 22 F, enthalpy wheel based recovery systems have a significant advantage over sensible plate type units because there is no additional cost for frost control. Even in cold areas, in most cases, enthalpy wheel based systems for schools and office buildings can be designed without frost control because most of the frosting hours are at night when the building is unoccupied. Consult bin data, such as that provided by ASHRAE, to qualify daytime applications in cold climates for frost-free operation. In regions where winter temperatures are extreme, Carrier s energy recovery wheels can be used effectively with the Frost Protection Factory Installed Option (FIOP) NOTE: Refer to ASHRAE for bin data in cold climates where the threat of wheel frosting is frequent. Consult this information to ensure appropriate preheat techniques are used during occupied times. Frost prevention for frost control is required in extremely cold climates to preserve performance and assure the continuous supply of outdoor air. Enthalpy wheel frost control strategies take advantage of inherently low frosting thresholds. This results in minimized energy use and maximized design load reductions. In regions that experience extreme winter conditions, the Frost Protection FIOP allows the exhaust fan to operate below the frost threshold temperature; however, a temperature sensor would disable the supply fan when the outdoor-air temperatures reach the frost control set point. The outdoor-air temperature sensor is located in the outdoor air intake of the section. To avoid depressurization of the space, fresh air dampers may be required as part of the building s ventilation system. Economizers As promulgated by ASHRAE, economizers reduce operating expenses and compressor run time by providing a source of free cooling and a means of ventilation to match changing application needs. When properly designed (per ASHRAE standards), the economizer will control the amount of outdoor air allowed into the building and is integrated with the operation of the compressors. Carrier economizers are properly designed and allow free cooling to occur when the outdoor air is suitable depending upon the control strategy chosen. It has also been proven (by multiple independent sources) that using economizers with a Demand Control Ventilation (CO2) strategy will result in considerable energy savings over a manual damper, 2- position damper or no damper applications. This is because manual and 2-position dampers allow air to be brought in at a fixed rate, with no variability as the outside air conditions change. Economizers with DCV control allows the outside ventilation air to be reduced to the minimum building ventilation requirements as required by the actual occupancy load, which in term reduces the load on the unit compressors. It is recommended that an economizer option always be used with the EnergyX v2. This allows for true free cooling operation when the outside air conditions allow for it. The Frost Thresholds Temperatures table below lists typical frost threshold temperatures for Carrier s EnergyX v2 energy recovery wheels over a wide range of indoor-air temperatures and relative humidity. Frost control is not required until outdoor air temperatures are below the threshold. Wheel Cleaning The EnergyX v2 includes a year wheel warranty as a standard product feature. Wheels are self cleaning from dry dust and dirt due to laminar airflow through the wheel. If volatile organic compounds (VOC s) are present present, wheels need to be deep cleaned just like evaporator coils must be in order to maintain latent recovery performance. Since it is easier and less risky to clean a wheel outside of the HVAC unit than within, EnergyX v2 unit construction allows for easy wheel segment removal. It is recommended that a different wheel segment be cleaned each time the unit air filters are changed in order to ensure periodic entire wheel cleaning. Wheel cleaning can be done simply and easily by hand. Proper wheel cleaning does not remove wheel desiccant. See the EnergyX v2 Controls & Troubleshooting Supplement Instructions for additional wheel cleaning and service information.

18 GUIDE SPECIFICATIONS EnergyX TM v2 Packaged Energy Recovery Ventilator Nominal Airflow Capacity Range: 300 CFM to 8,000 CFM Compatible Rooftop Unit Model Numbers: 48PG models PM models PG models PM models Part 1 General 1.01 System Description EnergyX v2 (Energy Recovery Ventilation) unit is an electrically controlled ventilation air pre-conditioner utilizing an AHRI 1060 certified energy recovery cassette to reduce the cooling and heating loads placed on the primary HVAC unit by untreated outdoor air. Building exhaust air shall be introduced to the EnergyX v2 unit through ductwork. Unit shall be designed as a factory-installed option to be used with Centurion 48PG and 48PM gas heat or 0PG and 0PM cooling only rooftop units for use in vertical supply and return applications only Quality Assurance A. Unit shall be designed in accordance with UL Standard 199. B. Energy Recovery unit shall be ETL tested and certified. C. Rooftop unit and Energy Recovery unit shall be ETL certified as one single system. D. Roof curb or curb extension shall be designed to conform to NRCA Standards. E. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation. F. Unit casing shall be capable of withstanding ASTM No. 141 (Method 6061) 00-hour salt spray test. G. Unit shall contain ARI 1060 certified Energy Recovery Cassette. H. Unit EATR leakage rates shall be capable of meeting ASHRAE Standard 62.1 requirements for use of class-2 exhaust with class-1 ventilation air. Part 2 Products 2.01 Equipment (Standard) A. General The EnergyX unit shall be a factory assembled, single piece unit. Contained within the unit enclosure shall be all factory wiring with a single, pre-determined point of power input and a single point of 24-volt control wiring. B. Unit Cabinet 1. Unit cabinet shall be constructed of galvanized steel coated with a prepainted baked enamel finish. 2. All models shall have hoods installed over outside air intake and exhaust openings. Outside air hood shall have aluminum water entrainment filters. 3. All models have 1-in., 2 pound density fiberglass insulation. 4. Hinged access doors with compression latches shall be provided on all units for access to fans and filters. Hinged doors shall be provided with at least one handle capable of being locked.. Exhaust air stream shall have back-draft dampers to prevent air penetration during off cycles. 6. Holes shall be provided in the base rails for rigging shackles to facilitate overhead rigging. C. Blowers Ton PG unit with Constant Volume Low CFM EnergyX unit: a) Blowers shall be direct drive with constant speed motors. Single-phase units shall have four-speed motors. Three-phase units shall have four-speed motors. b) Blower wheel shall be made from steel with a corrosion resistant finish. It shall be a dynamically balanced, double-inlet type with forward-curved blades. c) Blowers shall be mounted on neoprene vibration isolation pads. d) Motors shall be high efficiency and have thermal overload protection Ton units with Modulating Volume CFM EnergyX unit: a) Blowers shall be direct drive with variable speed motors. b) Blower wheel shall be made from steel with a corrosion resistant finish. It shall be a dynamically balanced, double-inlet type with backward-curved blades. c) Blowers shall be mounted on neoprene vibration isolation pads. d) Motors shall be high efficiency and have thermal overload protection. D. Filter Section 1. Standard filter section shall accept commercially available, 2-in. pleated filter(s). 2. Factory-installed exhaust and outdoor air filters shall be 2-in. pleated type with a M 8 minimum efficiency rating. E. Controls and Safeties The EnergyX unit shall operate in conjunction with rooftop unit fan. F. Electrical Requirements All unit power wiring shall enter unit cabinet at a single location. G. Energy Recovery Cassette 1. The energy recovery media shall have a minimum of 70% effectiveness at nominal unit airflow. 2. Energy wheel performance shall be ARI Standard 1060 Certified and bear the ARI Certified Product Seal. 3. The energy recovery cassette shall be an UL Recognized component for electrical and fire safety. 4. The wheel shall be coated with silica gel desiccant, permanently bonded without the use of binders or adhesives.. Coated wheels shall be washable with detergent or alkaline coil cleaner and water. 6. The silica gel shall not dissolve or deliquesce in the presence of water or high humidity. 7. The substrate shall be made of a lightweight polymer and shall not degrade or require additional coatings for application in coastal environments. 8. The wheel polymer layers shall be wound continuously with one flat and one structured layer in an ideal parallel plate geometry providing laminar flow and minimum pressure drop.

19 9. The polymer layers shall be captured in a stainless steel wheel frame or aluminum and stainless steel segment frames that provide a rigid and self-supporting matrix. 10. Energy recovery wheels greater than 19 inches in diameter shall be provided with removable wheel segments. 11. Wheel frame shall be a welded hub, spoke and rim assembly of stainless, plated, and or coated steel and shall be self supporting without the wheel segments in place. 12. All wheels shall use removable wheel segment design, except 2-6 ton constant volume unit. 13. Wheel segments shall be removable without the use of tools to facilitate maintenance and cleaning. 14. Wheel rim shall be continuous rolled stainless steel and the wheel shall be connected to the shaft by means of taper locks. 1. Wheel bearings shall provide an L-10 life of 400,000 hours. 16. Drive belts of stretch urethane shall be provided for wheel rim drive without the need for external tensioners or adjustment Options and Accessories 1. Supply and exhaust air frost control option a) Factory-installed frost protection module shall sense pressure differential across the energy recovery cassette. b) Supply blower shall be shut-off if the pressure differential across the energy recovery cassette exceeds an adjustable set point. Blower shall remain off for an adjustable time period. c) Exhaust blower and wheel shall remain in operation in order to remove any frost build-up on the wheel. 6. Motorized 2-postion damper accessory - a) The motorized 2-position supply and exhaust dampers shall include a factory-installed, 2-position, 24-volt motor. b) Damper actuators shall be spring-return actuators. c) Dampers shall open when the energy recovery module is in operation and close when unit is off. 7. CO2 Sensor a) The modulating airflow energy recovery unit shall be capable of incorporating a CO2 sensor for use with Demand Control Ventilation. b) The CO2 sensor shall connect to the base rooftop unit s digital controller. c) The modulating airflow energy recovery unit shall use at a minimum, a high & low CFM airflow setpoints when a CO2 sensor is used. 8. Roof Curb a) The energy recovery module shall use the standard rooftop unit roofcurb. b) Roofcurb extensions, support rails or other devices that come in contact with the roof surface to support the energy recovery module shall not be allowed. c) A horizontal adaptor curb shall be used to convert vertical return air applications into horizontal return air applications. The unit supply airflow shall be convertible via the base rooftop unit operation & restrictions. 2. Maintenance indicator package a) A factory-installed switch shall monitor the energy recovery blower and wheel motor amp draw and send a signal to field-supplied 24-v indicator upon amperage surge that maintenance required. 3. Filter maintenance indicator a) A factory-installed differential pressure switch shall measure pressure drop across the outside air filter and activate a field-supplied 24-v indicator when airflow is restricted. It shall not interrupt EnergyX operation. Switch set point shall be adjustable. 4. Free cooling with enthalpy and stop/jog control a) An enthalpy sensor shall prevent the wheel from rotating if the outside air conditions are acceptable for free cooling. Both exhaust and supply blowers will remain on. b) Stop-Jog-Control shall energize the wheel periodically during the free cooling operation of the EnergyX to prevent dirt build-up on the wheel.. Economizer option a) The economizer shall be integrated in the energy recovery module and shall allow air to bypass the energy recovery wheel for free cooling and fail-safe operation. Tilting wheel mechanisms shall not be allowed. b) The economizer damper shall be motorized with factoryinstalled, 24-volt Belimo actuator. c) The EnergyX shall be capable of using the economizer in a free cooling mode of operation. d) The economizer shall utilize enthalpy sensor controls when in the economizer mode.

20 APPENDIX APPENDIX A: BASE DIMENSIONS Gas Heat Units 48PG Low CFM Constant Volume 48PG Modulating 48PG Modulating 48PM Modulating 48PM 28 Modulating Cooling Only Units 0PG Low CFM Constant Volume 0PG Modulating 0PG Modulating 0PM Modulating 0PM 28 Modulating APPENDIX B: ACCESSORY DIMENSIONS Field installed 2-position motorized damper Horizontal Return Curb Adaptor Drawings PG EnergyX v2 Horizontal-Return roofcurb adaptor PG EnergyX v2 Horizontal-Return roofcurb adaptor PM EnergyX v2 Horizontal-Return roofcurb adaptor APPENDIX C: EXHAUST FAN PERFORMANCE PG Low & High CFM Modulating Exhaust Fan Curves PG Low & High CFM Modulating Exhaust Fan Curves PM Low & High CFM Modulating Exhaust Fan Curves PM 28 Low & High CFM Modulating Exhaust Fan Curves APPENDIX D: TYPICAL WIRING SCHEMATICS Base Rooftop unit typical control wiring diagrams: Control wiring diagram 48PG Control wiring diagram 0PG Control wiring diagram 0PM Base Rooftop unit power wiring diagrams: Power wiring diagram 48/0PG Power wiring diagram 48/0PM EnergyX v2 module typical wiring diagram APPENDIX E: ELECTRICAL DATA 48PG03-07 with Constant Volume Low CFM EnergyX 48PG03-14 with Modulating EnergyXv2 48PM16-28 with Modulating EnergyXv2 0PG03-07 with Constant Volume Low CFM EnergyX 0PG03-14 with Modulating EnergyXv2 0PM16-28 with Modulating EnergyXv2 no conv outlet, no economizer 0PM16-28 with Modulating EnergyXv2 with conv outlet, no economizer 0PM16-28 with Modulating EnergyXv2 no conv outlet, with economizer 0PM16-28 with Modulating EnergyXv2 with conv outlet, with economizer

21 Appendix A - Base Unit Dimensions 48PG03-07 Low CFM - Constant Volume

22

23 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS 2'-1-1/2" 64.6 Corner B 1'-9-1/2" /2" Corner C SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. CONDENSER ACCESS CLEANOUT PANEL 48HG0420 REV - ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. " '-6" /2" 13.8 Corner A 1'-3" RETURN AIR 6" 14. 1'--1/2" SUPPLY AIR 2'-11-1/2" '-6-1/2" '-2-1/2" Z 2'-4" RETURN AIR OPENING VERTICAL SUPPLY AIR OPENING VERTICAL ALT. CONDENSATE DRAIN 3/4"-14 NPT 1'-9" /4" [19.1] POWER SUPPLY KNOCKOUT (THRU CURB) 9" 22. 1'-4-1/2" ALT GAS LOCATION Corner D X 3'-4" AIR INTAKE HOOD (INCLUDED WITH ) 3'-6-1/2" '-6" FLUE DISCHARGE HOOD (INCLUDED WITH ) DISCONNECT CONVENIENCE OUTLET HACR BREAKER (OPTIONS) FILTER ACCESS DOOR 7'-6" INDOOR MOTOR ACCESS DOOR LOW 0-7/8" [22.4] OUTSIDE AIR HOOD 1-1/2" '-6-1/2" POWER SUPPLY ACCESS COVER 1-1/2" '-6-1/2" POWER SUPPLY KNOCKOUT 4-1/2" 11. BOTTOM OF EXHAUST AIR HOOD Y 4'-0-1/2" INSIDE RAILS LEFT SIDE 2-1/2" 67.2 DATE 08/04/09 3'-1" 93.4 SUPERCEDES N/A OUTSIDE OF PANEL RETURN AIR CONTROL BOX ACCESS DOOR SUPPLY AIR 7'-0-1/2" 210. INSIDE RAILS HEAT SECTION ACCESS DOOR FRONT 48PG WITH MODULATING ENERGY X

24 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS WHEEL AND FILTER ACCESS DOOR SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0420 OUTSIDE AIR HOOD ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 1/2"-14 GAS CONNECTION 1'-2-1/2" /2" 82.6 SECTION A-A SCALE 1 : 20 4'-6" " /4"-14 NPT CONDENSATE DRAIN CONDENSER ACCESS CLEANOUT PANEL CONDENSER COIL 3'-7-1/2" A EXHAUST AIR HOOD " 12. OUTSIDE OF PANEL RIGHT SIDE OUTSIDE OF PANEL A '-1-1/2" REAR 9-1/2" CONDENSATE ACCESS COVER DATE 08/04/09 SUPERCEDES N/A 48PG WITH MODULATING ENERGY X REV -

25 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS 2'-1-1/2" 64.6 Corner B 2'-3-1/2" 69.2 Y 8-1/2" Corner C SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0421 REV - ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 6" '-1-1/2" ALT. CONDENSATE DRAIN 3/4"-14 NPT Corner A 1'-4" RETURN AIR 1'-9-1/2" 44. SUPPLY AIR -1/2" " '-8" '-11" '-10-1/2" Z 2'-10" RETURN AIR OPENING VERTICAL SUPPLY AIR OPENING VERTICAL 2'-2" /4" [19.1] POWER SUPPLY KNOCKOUT (THRU CURB) Corner D 7-1/2" '-6" 44.3 ALT GAS LOCATION X 4'-0" AIR INTAKE HOOD (INCLUDED WITH ) 4'-4-1/2" FLUE DISCHARGE HOOD (INCLUDED WITH ) 12'-4" /2" 83. 2'-11" DISCONNECT CONVENIENCE OUTLET HACR BREAKER (OPTIONS) LOW 0-7/8" [22.4] OUTSIDE AIR HOOD FILTER ACCESS DOOR 8'-6-1/2" INDOOR MOTOR ACCESS DOOR CONDENSER ACCESS CLEANOUT PANEL POWER SUPPLY ACCESS COVER POWER SUPPLY KNOCKOUT 3-1/2" 83. 2'-11" /2" BOTTOM OF EXHAUST AIR HOOD 4'-10" INSIDE RAILS LEFT SIDE 2-1/2" 64.7 DATE 08/04/09 3'-10-1/2" SUPERCEDES N/A OUTSIDE OF PANEL RETURN AIR CONTROL BOX ACCESS DOOR SUPPLY AIR 8'-1" INSIDE RAILS HEAT SECTION ACCESS DOOR FRONT 48PG WITH MODULATING ENERGY X

26 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS WHEEL AND FILTER ACCESS DOOR SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0421 OUTSIDE AIR HOOD EXHAUST AIR HOOD ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 1/2-14 GAS CONNECTION 1'-3" " SECTION A-A SCALE 1 : 20 '-3" " 28.9 CONDENSER ACCESS CLEANOUT PANEL 3/4"-14 NPT CONDENSATE DRAIN CONDENSER COIL 4'-3" A " 12. OUTSIDE OF PANEL RIGHT SIDE OUTSIDE OF PANEL A '-8" REAR 9-1/2" CONDENSATE ACCESS COVER DATE 08/04/09 SUPERCEDES N/A 48PG WITH MODULATING ENERGY X REV -

27 SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. Corner B Corner C Y REV - RTU Weight Center of Gravity (inches) Center of Gravity (mm) Weight Center of Gravity (inches) Center of Gravity (mm) TYPE TYPE (lbs) (kg) X Y Z X Y Z TYPE (lbs) (kg) X Y Z X Y Z 48PM16 Low CFM High CFM PM20 Low CFM High CFM PM24 Low CFM High CFM ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 1. FOR OUTDOOR USE ONLY. 2. WEIGHTS SHOWN ARE FOR 48PM16-24 LOW HEAT WITH ALUMINUM COILS, AND STANDARD DRIVE. FOR WEIGHTS OF OPTIONAL EQUIPMENT CONSULT THE PRODUCT DATA MANUAL. 3. DO NOT LOCATE ADJACENT S WITH FLUE DISCHARGE FACING ENERGY RECOVERY INLET. 4. MINIMUM CLEARANCES (LOCAL CODES OR JURISDICTIONS MAY PREVAIL): RIGHT SIDE: 72 CONDENSER AIRFLOW LEFT SIDE: 120 OUTDOOR AIRFLOW & EXHAUST FRONT SIDE: 36 SICE 72 CONDENSER AIRFLOW 96 COIL REMOVAL 42 TO ANOTHER (PER NEC) 36 TO UNGROUNDED SURFACE (PER NEC) 42 TO GROUNDED SURFACE (PER NEC) FLUE OUTLET: 48 TO COMBUSTIBLE SURFACES, UTILITY METERS, REGULATORS OR RELIEF REAR SIDE: 72 CONDENSER AIRFLOW 36 SICE ACCESS 12 HORIZONTAL SUPPLY BOTTOM: 14 BOTTOM OF BASE PAN TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB 10 BOTTOM OF BASE RAIL TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB TOP: 72 CONDENSER EXHAUST FENCE: LOUVERED OR CHAIN LINK FENCES REQUIRE NO CLEARANCE FOR AIRFLOW. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. REMOVABLE FENCE/BARRICADE REQUIRES NO SICE CLEARANCE. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. DIMENSIONS ARE FROM OUTSIDE OF BASE RAIL. FOR REDUCED SICE AND OPERATIONAL CLEARANCES CONTACT CARRIER SALES & APPLICATION ENGINEER.. DOWN SHOT DUCTS DESIGNED TO BE ATTACHED TO ACCESSORY ROOF CURB ONLY. IF IS MOUNTED SIDE SUPPLY, DUCTS MUST BE SUPPORTED BY CROSS BRACES AS DONE ON ACCESSORY ROOF CURB. 6. HORIZONTAL RETURN REQUIRES ACCESSORY CURB ADAPTOR. 7. DIMENSIONS IN [ ] ARE IN MILLIMETERS AND WEIGHT IN KILOGRAMS. 8. S MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE FROM CLASS A, B OR C ROOF COVERING MATERIAL IF SET ON BASE RAILS. '-7-1/2" '-1" Corner A Z Corner D 1'-10-1/2" 69.1 X CENTER OF GRAVITY 1'-10" DIRECTION OF AIRFLOW OUTSIDE AIR HOOD 2-1/2" 9.2 '-1" 14.6 OUTSIDE AIR HOOD 2-1/2" " 12.4 EXHAUST AIR HOOD 2-1/2" 9.2 '-1" 14.6 EXHAUST HOOD 9" /2" " 9.3 7/8" DIA HOLE [22] (CONTROL) 3'-7-1/2" '-7" LEFT SIDE 3" DIA HOLE [76] (POWER) DATE 08/04/09 SUPERCEDES FRONT N/A 48PM W/ MODULATING ENERGYX 0TG06986

28 WHEEL AND FILTER ACCESS DOOR SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. OUTSIDE AIR HOOD EXHAUST AIR HOOD REV - RTU Weight Center of Gravity (inches) Center of Gravity (mm) Weight Center of Gravity (inches) Center of Gravity (mm) TYPE TYPE (lbs) (kg) X Y Z X Y Z TYPE (lbs) (kg) X Y Z X Y Z 48PM16 Low CFM High CFM PM20 Low CFM High CFM PM24 Low CFM High CFM FOR OUTDOOR USE ONLY. 2. WEIGHTS SHOWN ARE FOR 48PM16-24 LOW HEAT WITH ALUMINUM COILS, AND STANDARD DRIVE. FOR WEIGHTS OF OPTIONAL EQUIPMENT CONSULT THE PRODUCT DATA MANUAL. 3. DO NOT LOCATE ADJACENT S WITH FLUE DISCHARGE FACING ENERGY RECOVERY INLET. 4. MINIMUM CLEARANCES (LOCAL CODES OR JURISDICTIONS MAY PREVAIL): RIGHT SIDE: 72 CONDENSER AIRFLOW LEFT SIDE: 120 OUTDOOR AIRFLOW & EXHAUST FRONT SIDE: 36 SICE 72 CONDENSER AIRFLOW 96 COIL REMOVAL 42 TO ANOTHER (PER NEC) 36 TO UNGROUNDED SURFACE (PER NEC) 42 TO GROUNDED SURFACE (PER NEC) FLUE OUTLET: 48 TO COMBUSTIBLE SURFACES, UTILITY METERS, REGULATORS OR RELIEF REAR SIDE: 72 CONDENSER AIRFLOW 36 SICE ACCESS 12 HORIZONTAL SUPPLY BOTTOM: 14 BOTTOM OF BASE PAN TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB 10 BOTTOM OF BASE RAIL TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB TOP: 72 CONDENSER EXHAUST FENCE: LOUVERED OR CHAIN LINK FENCES REQUIRE NO CLEARANCE FOR AIRFLOW. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. REMOVABLE FENCE/BARRICADE REQUIRES NO SICE CLEARANCE. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. DIMENSIONS ARE FROM OUTSIDE OF BASE RAIL. FOR REDUCED SICE AND OPERATIONAL CLEARANCES CONTACT CARRIER SALES & APPLICATION ENGINEER.. DOWN SHOT DUCTS DESIGNED TO BE ATTACHED TO ACCESSORY ROOF CURB ONLY. IF IS MOUNTED SIDE SUPPLY, DUCTS MUST BE SUPPORTED BY CROSS BRACES AS DONE ON ACCESSORY ROOF CURB. 6. HORIZONTAL RETURN REQUIRES ACCESSORY CURB ADAPTOR. 7. DIMENSIONS IN [ ] ARE IN MILLIMETERS AND WEIGHT IN KILOGRAMS. 8. S MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE FROM CLASS A, B OR C ROOF COVERING MATERIAL IF SET ON BASE RAILS. ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. FLUE DETAIL CENTER OF GRAVITY DIRECTION OF AIRFLOW CONDENSATE ACCESS COVER 8-1/8 [1476] 3/4"-14 NPT CONDENSATE RIGHT SIDE REAR DRAIN " '-10-1/2" DATE 08/04/09 SUPERCEDES N/A 48PM W/ MODULATING ENERGYX 0TG06986

29 SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. Corner B Corner C Y REV - RTU Weight Center of Gravity (inches) Center of Gravity (mm) TYPE TYPE (lbs) (kg) X Y Z X Y Z 48PM28 Low CFM PM28 High CFM ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 1. FOR OUTDOOR USE ONLY. 2. WEIGHTS SHOWN ARE FOR 48PM28 LOW HEAT WITH ALUMINUM COILS, AND STANDARD DRIVE. FOR WEIGHTS OF OPTIONAL EQUIPMENT CONSULT THE PRODUCT DATA MANUAL. 3. DO NOT LOCATE ADJACENT S WITH FLUE DISCHARGE FACING ENERGY RECOVERY INLET. 4. MINIMUM CLEARANCES (LOCAL CODES OR JURISDICTIONS MAY PREVAIL): RIGHT SIDE: 72 CONDENSER AIRFLOW LEFT SIDE: 120 OUTDOOR AIRFLOW & EXHAUST FRONT SIDE: 36 SICE 72 CONDENSER AIRFLOW 96 COIL REMOVAL 42 TO ANOTHER (PER NEC) 36 TO UNGROUNDED SURFACE (PER NEC) 42 TO GROUNDED SURFACE (PER NEC) FLUE OUTLET: 48 TO COMBUSTIBLE SURFACES, UTILITY METERS, REGULATORS OR RELIEF REAR SIDE: 72 CONDENSER AIRFLOW 36 SICE ACCESS 12 HORIZONTAL SUPPLY BOTTOM: 14 BOTTOM OF BASE PAN TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB 10 BOTTOM OF BASE RAIL TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB TOP: 72 CONDENSER EXHAUST FENCE: LOUVERED OR CHAIN LINK FENCES REQUIRE NO CLEARANCE FOR AIRFLOW. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. REMOVABLE FENCE/BARRICADE REQUIRES NO SICE CLEARANCE. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. DIMENSIONS ARE FROM OUTSIDE OF BASE RAIL. FOR REDUCED SICE AND OPERATIONAL CLEARANCES CONTACT CARRIER SALES & APPLICATION ENGINEER.. DOWN SHOT DUCTS DESIGNED TO BE ATTACHED TO ACCESSORY ROOF CURB ONLY. IF IS MOUNTED SIDE SUPPLY, DUCTS MUST BE SUPPORTED BY CROSS BRACES AS DONE ON ACCESSORY ROOF CURB. 6. HORIZONTAL RETURN REQUIRES ACCESSORY CURB ADAPTOR. 7. DIMENSIONS IN [ ] ARE IN MILLIMETERS AND WEIGHT IN KILOGRAMS. 8. S MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE FROM CLASS A, B OR C ROOF COVERING MATERIAL IF SET ON BASE RAILS. '-7-1/2" '-1" Corner A Z Corner D 2'-0-1/2" X 16'-0" CENTER OF GRAVITY DIRECTION OF AIRFLOW OUTSIDE AIR HOOD 2-1/2" 9.2 '-1" 14.6 OUTSIDE AIR HOOD 2-1/2" " 12.4 EXHAUST AIR HOOD 2-1/2" 9.2 '-1" 14.6 EXHAUST HOOD 9" /2" " 9.3 7/8" DIA HOLE [22] (CONTROL) 4'-0" '-7" LEFT SIDE 3" DIA HOLE [76] (POWER) DATE 08/04/09 SUPERCEDES N/A FRONT 48PM 28 W/ MODULATING ENERGYX 0TG06987

30 WHEEL AND FILTER ACCESS DOOR SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. OUTSIDE AIR HOOD EXHAUST AIR HOOD REV - RTU Weight Center of Gravity (inches) Center of Gravity (mm) TYPE TYPE (lbs) (kg) X Y Z X Y Z 48PM28 Low CFM PM28 High CFM ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 1. FOR OUTDOOR USE ONLY. 2. WEIGHTS SHOWN ARE FOR 48PM28 LOW HEAT WITH ALUMINUM COILS, AND STANDARD DRIVE. FOR WEIGHTS OF OPTIONAL EQUIPMENT CONSULT THE PRODUCT DATA MANUAL. 3. DO NOT LOCATE ADJACENT S WITH FLUE DISCHARGE FACING ENERGY RECOVERY INLET. 4. MINIMUM CLEARANCES (LOCAL CODES OR JURISDICTIONS MAY PREVAIL): RIGHT SIDE: 72 CONDENSER AIRFLOW LEFT SIDE: 120 OUTDOOR AIRFLOW & EXHAUST FRONT SIDE: 36 SICE 72 CONDENSER AIRFLOW 96 COIL REMOVAL 42 TO ANOTHER (PER NEC) 36 TO UNGROUNDED SURFACE (PER NEC) 42 TO GROUNDED SURFACE (PER NEC) FLUE OUTLET: 48 TO COMBUSTIBLE SURFACES, UTILITY METERS, REGULATORS OR RELIEF REAR SIDE: 72 CONDENSER AIRFLOW 36 SICE ACCESS 12 HORIZONTAL SUPPLY BOTTOM: 14 BOTTOM OF BASE PAN TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB 10 BOTTOM OF BASE RAIL TO COMBUSTIBLE SURFACES WHEN NOT USING ROOF CURB TOP: 72 CONDENSER EXHAUST FENCE: LOUVERED OR CHAIN LINK FENCES REQUIRE NO CLEARANCE FOR AIRFLOW. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. REMOVABLE FENCE/BARRICADE REQUIRES NO SICE CLEARANCE. CLEARANCE FOR COMBUSTIBLE SURFACES AND NEC CODES APPLY. DIMENSIONS ARE FROM OUTSIDE OF BASE RAIL. FOR REDUCED SICE AND OPERATIONAL CLEARANCES CONTACT CARRIER SALES & APPLICATION ENGINEER.. DOWN SHOT DUCTS DESIGNED TO BE ATTACHED TO ACCESSORY ROOF CURB ONLY. IF IS MOUNTED SIDE SUPPLY, DUCTS MUST BE SUPPORTED BY CROSS BRACES AS DONE ON ACCESSORY ROOF CURB. 6. HORIZONTAL RETURN REQUIRES ACCESSORY CURB ADAPTOR. 7. DIMENSIONS IN [ ] ARE IN MILLIMETERS AND WEIGHT IN KILOGRAMS. 8. S MAY BE INSTALLED ON COMBUSTIBLE FLOORS MADE FROM CLASS A, B OR C ROOF COVERING MATERIAL IF SET ON BASE RAILS. FLUE DETAIL CENTER OF GRAVITY DIRECTION OF AIRFLOW CONDENSATE ACCESS COVER 70-1/8 [1781] 3/4"-14 NPT CONDENSATE RIGHT SIDE REAR DRAIN " '-0-1/2" DATE 08/04/09 SUPERCEDES N/A 48PM 28 W/ MODULATING ENERGYX 0TG06987

31 Appendix A - Base Unit Dimensions 0PG03-07 Low CFM - Constant Volume

32 Appendix A - Base Unit Dimensions 0PG03-07 Low CFM - Constant Volume

33 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS 2'-1-1/2" 64.6 Corner B 1'-9-1/2" /2" Corner C CONDENSER ACCESS CLEANOUT PANEL Y SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0422 REV - ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. " '-6" 43.0 Corner A 1'-3" RETURN AIR 6" 14. 1'--1/2" SUPPLY AIR -1/2" '-11-1/2" '-6-1/2" '-2-1/2" Z 2'-4" RETURN AIR OPENING VERTICAL SUPPLY AIR OPENING VERTICAL ALT. CONDENSATE DRAIN 3/4"-14 NPT 1'-9" /4" [19.1] POWER SUPPLY KNOCKOUT (THRU CURB) 9" 22. 1'-4-1/2" ALT GAS LOCATION Corner D X 10'-6" DISCONNECT CONVENIENCE OUTLET HACR BREAKER (OPTIONS) OUTSIDE AIR HOOD FILTER ACCESS DOOR 7'-6" INDOOR MOTOR ACCESS DOOR 1-1/2" '-6-1/2" LOW 0-7/8" [22.4] POWER SUPPLY ACCESS COVER 1-1/2" '-6-1/2" POWER SUPPLY KNOCKOUT EXHAUST AIR HOOD 4-1/2" 11. BOTTOM OF 4'-0-1/2" INSIDE RAILS LEFT SIDE 2-1/2" 67.2 DATE 08/04/09 3'-1" 93.4 SUPERCEDES N/A OUTSIDE OF PANEL RETURN AIR CONTROL BOX ACCESS DOOR SUPPLY AIR 7'-0-1/2" 210. INSIDE RAILS ELECTRIC HEAT SECTION ACCESS DOOR FRONT 0PG WITH MODULATING ENERGY X

34 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS WHEEL AND FILTER ACCESS DOOR SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0422 OUTSIDE AIR HOOD EXHAUST AIR HOOD ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 4'-6" " /4"-14 NPT CONDENSATE DRAIN CONDENSER ACCESS CLEANOUT PANEL CONDENSER COIL 3'-7-1/2" RIGHT SIDE OUTSIDE OF PANEL REAR '-1-1/2" /2" CONDENSATE ACCESS COVER DATE 08/04/09 SUPERCEDES N/A 0PG WITH MODULATING ENERGY X REV -

35 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS 2'-1-1/2" 64.6 Corner B 2'-3-1/2" 69.2 Y 8-1/2" Corner C SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0423 REV - ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. 6" '-1-1/2" ALT. CONDENSATE DRAIN 3/4"-14 NPT Corner A 1'-4" RETURN AIR 1'-9-1/2" 44. SUPPLY AIR -1/2" " '-8" '-11" '-10-1/2" Z 2'-10" RETURN AIR OPENING VERTICAL SUPPLY AIR OPENING VERTICAL 2'-2" /4" [19.1] POWER SUPPLY KNOCKOUT (THRU CURB) Corner D 7-1/2" '-6" 44.3 ALT GAS LOCATION X 4'-0" '-4" /2" 83. 2'-11" DISCONNECT CONVENIENCE OUTLET HACR BREAKER (OPTIONS) LOW 0-7/8" [22.4] OUTSIDE AIR HOOD FILTER ACCESS DOOR 8'-6-1/2" INDOOR MOTOR ACCESS DOOR CONDENSER ACCESS CLEANOUT PANEL POWER SUPPLY ACCESS COVER POWER SUPPLY KNOCKOUT 3-1/2" 83. 2'-11" /2" BOTTOM OF EXHAUST AIR HOOD 4'-10" INSIDE RAILS LEFT SIDE 2-1/2" 64.7 DATE 08/04/09 3'-10-1/2" SUPERCEDES N/A OUTSIDE OF PANEL RETURN AIR CONTROL BOX ACCESS DOOR SUPPLY AIR 8'-1" INSIDE RAILS ELECTRIC HEAT SECTION ACCESS DOOR FRONT 0PG WITH MODULATING ENERGY X

36 DATA SHOWN FOR STANDARD WITH LOW HEAT, STANDARD COILS, STANDARD IFM DRIVE AND NO FACTORY OPTIONS SUBMISSION OF THESE DRAWINGS OR DOCUMENTS DOES NOT CONSTITUTE PART PERFORMANCE OR ACCEPTANCE OF CONTRACT. 48HG0423 OUTSIDE AIR HOOD EXHAUST AIR HOOD REV - ED P.O. BOX 4808 TECHNOLOGIES SYRACUSE, NY CARRIER THIS DOCUMENT IS THE PROPERTY OF CARRIER CORPORATION AND IS DELIVERED UPON THE EXPRESS CONDITION THAT THE CONTENTS WILL NOT BE DISCLOSED OR USED WITHOUT CARRIER CORPORATION'S WRITTEN CONSENT. '-3" " 28.9 CONDENSER ACCESS CLEANOUT PANEL 3/4"-14 NPT CONDENSATE DRAIN CONDENSER COIL 4'-3" RIGHT SIDE OUTSIDE OF PANEL '-8" REAR 9-1/2" CONDENSATE ACCESS COVER DATE 08/04/09 SUPERCEDES N/A WHEEL AND FILTER ACCESS DOOR 0PG WITH MODULATING ENERGY X