DESCRIPTION SINGLE PACKAGE CONVERTIBLE SERIES HEAT PUMPS FEATURES

Transcription

1 (00 DESCRIPTION SINGLE PACKAGE CONVERTIBLE SERIES HEAT PUMPS BCCB036, 048 & 0 (8/, 4V) BECB036, 048 & 0 (575V) 3, 4 AND 5 NOMI NAL TONS (0 SEER) The series heat pumps are convertible single package units with a common cabinet and common roof curb for the 3, 4 and 5 ton sizes. The units were designed for residential and light commercial applications. They can easily be installed on a roof curb, slab, roof jack or frame. All units are selfcontained and assembled on rigid full perimeter base rails allowing for 3way fork lift access and overhead rigging. Every unit is completely charged, wired, piped and tested at the factory to provide for a quick and easy field installation. The units are available with supplemental electric heaters as fieldinstalled accessories. Both down and side discharge airflows are available without having to swap panels. The installer simply removes the duct covers for the desired configuration. Economizers may be used on either side or down discharge applications with no modifications required. All models include a year limited warranty on the complete unit. Compressors and electric heater elements each carry an additional 4year warranty. FEATURES CONTROLS These heat pumps utilize a timetemperature defrost circuit to provide optimal comfort control and ensure reliable operation. The nominal defrost times are field adjustable to, and 0 minutes. The defrost time is initiated and terminated by a liquid line control with a 0 minute override limit built into the defrost control. COMMON FOOTPRINT/COMMON CABINET The 3, 4 and 5 ton units all share the exact same cabinet and therefore the same roof curb. You now have the flexibility of setting one curb and, after the internal load has been determined, placing the proper tonnage unit on that curb. HIGH EFFICIENCY All units have a minimum SEER of 0, a COP of 3.0 (high) and.0 (low) and an HSPF of 6.8. These efficiencies exceed all legislated minimum levels and provide low operating costs. CONVERTIBLE AIRFLOW DESIGN Both the side and bottom duct openings are covered when they leave the factory. If a side supply/side return is desired, you simply remove the two side duct covers from the outside of the unit and discard them. If a bottom supply/return is desired, you simply remove the two bottom duct covers and discard them. No panel cutting or swapping is required! Convertible airflow design allows maximum field flexibility and minimum inventory. FACTORYINSTALLED OPTION Adjustable beltdrive blower is available on 5 ton, 3phase units from the factory to provide maximum air flow flexibility. FIELDINSTALLED ACCESSORIES Accessories were designed for quick and easy installation. The motorized damper and economizers simply slide in and electrical connections are made by modular plugs. Electric heaters mount easily and knockouts are provided in the internal partitions to connect the elements to the control box single point kit. The motorized air damper includes a slidin/plugin damper assembly with a rainhood and filters. The outdoor air dampers open when the indoor fan motor is energized. The damper is capable of providing 0% through 00% of outdoor return air opening. Cont'd.

2 FEATURES CONT'D. The manual outdoor damper provides 0% through % or 0% through 00% of return air opening (field adjustable). Designed for duct mounted side or bottom supply/return applications. Includes rain hood assembly and filter. The 4" high roof curb is shipped knocked down. A roof curb deck is not required because the bottom of the unit is insulated. WIDE RANGE OF INDOOR AIRFLOWS All models operate over a wide range of design conditions with a 3speed direct drive fan motor. Beltdrive blowers are also available on all models. FULL PERIMETER BASE RAILS The permanently attached base rails provide a solid foundation for the entire unit and protect the unit during shipment. The rails provide fork lift access from 3 sides and rigging holes are also provided so that an overhead crane can be used to place the units on a roof. SYSTEM PROTECTION Crankcase heaters and internal compressor protection are standard on all compressors. Every unit has a liquid line filterdrier, low pressure switch, high pressure switch and high temperature switch to protect all system components. A suction line freezestat is supplied on all threephase units to protect against loss of charge and coil frosting due to low economizer outdoor air temperature while the compressor is running. All units will provide cooling at ambient temperatures down to F. UTILITY CONNECTIONS MADE EASY Electric utility knockouts are provided in the unit underside as well as the side of the unit. A clearly identified location is provided to mount a field supplied electrical disconnect switch. Utility connections can be made quickly and with a minimum amount of field labor. SIMPLE CONTROL CIRCUIT Matenlock plug connectors are used where line and low voltage wires pass thru internal bulkheads. This allows for easier troubleshooting and component replacement. The electrical control box is not located in the compressor compartment so the access cover can be removed for troubleshooting without affecting the normal system operating pressures. CONVERTABLE ROOFTOP HEAT PUMP (Direct Drive Models) DIRECT DRIVE BLOWER MOTOR (BeltDrive Option also available on some models) TA BLE OF CON TENTS Description... Features... Ratings...3 Physical Data...3 Cooling Capacities 3 Ton...4 Cooling Capacities 4 Ton...5 Cooling Capacities 5 Ton...6 Heat ing Capacities...7 Sup ply Air Blower Perf. 3 & 4 Ton w/beltdrive...8 Sup ply Air Blower Perf. 5 Ton w/belt Drive...9 Sup ply Air Blower Perf. 3, 4 & 5 Ton w/direct Drive...9 Mo tor and Drive Data...9 Static Resistances...0 Heater / Limi ta tions...0 Field Wir ing...0 Elec tri cal Data Basic Units (DirectDrive)... Elec. DataHt. Pump/Elec.Ht. 3 Ton (Direct Drive)... Elec. DataHt. Pump/Elec.Ht. 4 & 5 Ton (DirectDrive)... Elec tri cal Data Basic Units (Belt Drive)...3 Elec. DataHt. Pump/Elec.Ht. 3 Ton (Belt Drive)...3 Elec. DataHt. Pump/Elec.Ht. 4 & 5 Ton (Belt Drive)...4 Unit Di men sions... Roof Curb Di men sions...7 Factory Installed Op tions / FieldInstalled Ac ces so ries...8 Typical Ap pli ca tions...9 Unitary Products Group

3 RATINGS CAPACITY RATINGS COOLING PERFORMANCE ARI RATINGS (SEE NOTE ) NOMINAL SOUND HEATING CAPACITY ELECTRIC HEAT CAPACITY RATING (SEE NOTE 3) HSPF (SEE NOTE ) 47 F 7 F KW bels MBH SEER EER MBH COP MBH COP V 4V 0V , 7, 0, & 7,0, & 0, & , 7, 0, & 7,0, & 0, & ,7,0,, & 7,0,, & 0,, & NOTE:. Ratings are in ac cor dance with ARI Standard.. Sound Ratings are in accordance with ARI Standard. 3. Heat ers available as accessories all with single point power sup ply. SEER = Sea sonal Energy Efficiency Ra tio the total cooling output in BTU's during a normal an nual us age period for cooling divided by the total elec tric power input in watthours during the same pe ri od. EER = Energy Efficiency Ratiothe cooling ca pac ity in BTU's per hour (BTUH) di vided by the power input in watts at any given set of rating conditions, ex pressed in BTUH per watt (BTUH/watt). COP = Co ef fi cient of Performance the total heating ca pac ity pro vided by the refrigera tion system, including cir cu lat ing fan heat but excluding sup ple men tary re sis tance (BTU's per hour) di vided by the total elec tric input (watts) x 3.4. SOUND POWER RATINGS Unit Size Sound Power (db 0 Watts) ESP Blower Octave Band Centerline Frequency (Hz) SWL IWG Speed KW db(a) LOW HIGH HIGH ft* *At a distance of 0 ft from the blower NOTE: These values have been accessed using a model of sound propagation from a point source into the hemispheric free field. The dba values provided are to be used for reference only. Calculation of dba values cover matters of system design and the fan manufacturer has no way of knowing the details of each system. This constitutes an exception to any specification or guarantee requiring a dba value or sound data in any other form than sound power level ratings. PHYSICAL DATA BASIC UNITS S CENTRIFUGAL BLOWER (Dia. x Wd. in.) x 0 x 0 x 0 AIR FAN MOTOR HP (DIRECTDRIVE) 3 BLOWER 4 FAN MOTOR HP (BELTDRIVE) ROWS DEEP INDOOR FINS PER INCH 6 COIL FACE AREA (Sq. Ft.) PROPELLER DIA. (in.) 4 OUTDOOR FAN MOTOR HP FAN 3 NOM. TO TAL ROWS DEEP OUTDOOR FINS PER INCH COIL FACE AREA (Sq. Ft.) AIR QUANTITY PER UNIT (" x " x ") FILTERS QUANTITY PER UNIT (4" X 5" X ") (SEE NOTE) TOTAL FACE AREA (sq. ft.) CHARGE REFRIGERANT (lbs./oz.) 7/ 8/4 8/4 COMPRESSOR HERMETIC, RECIPROCATING (Qty) NOTE: Filter racks can accommodate " or " thick filters. Unitary Products Group 3

4 COOLING CAPACITIES 3 TON (036) Air On Temperature of Air on Outdoor Coil Indoor 85 F 95 F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW Air On Temperature of Air on Outdoor Coil Indoor 05 F F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW These capacities are gross rat ings. For net ca pac ity, determine the KW of the supply air blower mo tor from the Blower Per form ance Ta ble, mul ti ply this value by 3.4 MBH / KW to determine the motor heat, and de duct this heat from the gross ca pac ity of the unit. These ratings in clude the compressor and the outdoor fan mo tors but not the supply air blower motor. The total out door fan motor power in put is 0. KW. Ref er to the Blower Per form ance Table for the KW of the supply air blower mo tor. NOMI NAL RAT ING ALL SEN SI BLE CA PAC ITY 4 Unitary Products Group

5 COOLING CAPACITIES 4 TON (048) Air On Temperature of Air on Outdoor Coil Indoor 85 F 95 F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW Air On Temperature of Air on Outdoor Coil Indoor 05 F F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW These capacities are gross rat ings. For net ca pac ity, determine the KW of the supply air blower mo tor from the Blower Per form ance Ta ble, mul ti ply this value by 3.4 MBH / KW to determine the motor heat, and de duct this heat from the gross ca pac ity of the unit. These ratings in clude the compressor and the outdoor fan mo tors but not the supply air blower motor. The total out door fan motor power in put is 0. KW. Ref er to the Blower Per form ance Table for the KW of the supply air blower mo tor. NOMI NAL RAT ING ALL SEN SI BLE CA PAC ITY Unitary Products Group 5

6 COOLING CAPACITIES 5 TON (0) Air On Temperature of Air on Outdoor Coil Indoor 85 F 95 F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW Air On Temperature of Air on Outdoor Coil Indoor 05 F F Coil Total Power Sensible Ca pac ity, MBH Total Power Sensible Capacity, MBH WB Cap. Input Entering Dry Bulb, F Cap. Input Entering Dry Bulb, F F MBH KW MBH KW These capacities are gross rat ings. For net ca pac ity, determine the KW of the supply air blower mo tor from the Blower Per form ance Ta ble, mul ti ply this value by 3.4 MBH / KW to determine the motor heat, and de duct this heat from the gross ca pac ity of the unit. These ratings in clude the compressor and the outdoor fan mo tors but not the supply air blower motor. The total out door fan motor power in put is 0. KW. Ref er to the Blower Per form ance Table for the KW of the supply air blower mo tor. NOMI NAL RAT ING ALL SEN SI BLE CA PAC ITY 6 Unitary Products Group

7 HEATING CAPACITIES RET. AIR CAP OUTDOOR AIR TEMPERATURE, F (7% RH) F & KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW MBH KW Unitary Products Group 7

8 AIR BLOWER PERFORMANCE 036 & 048 with Belt Drive 036 SIDE DUCT APPLICATIONS (/4/575 VOLTS) 036 AIR FLOW Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts AIR FLOW Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts NOTE: FOR 8 VOLTS, MUL TI PLY VAL UES BY *IN CLUDES ALLOWANCES FOR A WET INDOOR COIL AND " FILTERS. REFER TO THE STATIC RESISTANCES TABLE FOR RE SIS TANCE VALUES ON APPLICATIONS OTHER THAN HEAT PUMP UNITS WITH SIDE DUCT AIR FLOWS. 048 SIDE DUCT APPLICATIONS (/4/575 VOLTS) 048 AIR FLOW Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts AIR FLOW Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts NOTE: FOR 8 VOLTS, MUL TI PLY VAL UES BY *IN CLUDES ALLOWANCES FOR A WET INDOOR COIL AND " FILTERS. REFER TO THE STATIC RESISTANCES TABLE FOR RE SIS TANCE VALUES ON APPLICATIONS OTHER THAN HEAT PUMP UNITS WITH SIDE DUCT AIR FLOWS. 8 Unitary Products Group

9 AIR BLOWER PERFORMANCE 0 with Belt Drive 0 SIDE DUCT APPLICATIONS (/4/575 VOLTS) 0 0 AIR FLOW AIR BLOWER PERFORMANCE 036, 048 & 0 with Direct Drive Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts AIR FLOW Available External Static Pressure IWG* RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts NOTE: FOR 8 VOLTS, MUL TI PLY VAL UES BY *IN CLUDES ALLOWANCES FOR A WET INDOOR COIL AND " FILTERS. REF ER TO THE STATIC RESISTANCES TA BLE FOR RE SIS TANCE VAL UES ON AP PLI CA TIONS OTHER THAN HEAT PUMP UNITS WITH SIDE DUCT AIR FLOWS. / 4 / 575 VOLTS SIDE DUCT APPLICATIONS MOTOR AND DRIVE DATA BeltDrive Blower MOTOR SPEED HI MED LOW HI MED LOW HI MED LOW Available External Static Pressure IWG* Watts Watts Watts Watts Watts Watts Watts Watts Watts BLOWER RANGE (RPM) NOTE: FOR 8 VOLTS, MUL TI PLY VAL UES BY MO TOR* HP RPM FRAME SIZE SERVICE FACTOR ADJUSTABLE MOTOR PULLEY PITCH BORE DIA. (in.) (in.) FIXED BLOWER PULLEY PITCH BORE DIA. (in.) (in.) Unitary Products Group 9 BELT PITCH LENGTH (in.) DESIG NATION / / A / / A / / A36 *All motors have solid bases and are inherently protected. These motors can be se lected to op er ate into their serv ice factor because they are located in the moving air, upstream of any heating device *IN CLUDES ALLOWANCES FOR A WET INDOOR COIL AND " FILTERS. REF ER TO THE STATIC RESISTANCES TA BLE FOR RE SIS TANCE VAL UES ON AP PLI CA TIONS OTHER THAN HEAT PUMP UNITS WITH SIDE DUCT AIRFLOWS

10 STATIC RESISTANCES EXTERNAL STATIC PRESSURE DROP RESISTANCE, IWG DESCRIPTION Economizer, Electric Heat ers 5 KW KW Bottom Duct Connections Deduct these re sis tance values from the avail able external static pressure shown in the re spec tive Blower Per form ance Ta ble. The pres sure thru the econo mizer is greater for 00% outdoor air than for 00% return air. If the re sis tance of the re turn air duct system is less than 0.5 IWG, the unit will deliver less during full economizer op era tion. HEATER / LIMITATIONS HEATER SIZE NOM. KW UNIT SIZE, NOMINAL TONS VOLTAGE MINIMUM AIR 8 / 8 / 3,00,00,0,0,0,00,00,0,0,0,0,0,0,0,0,0,0,0,0,0 HEATER SIZE NOM. KW UNIT SIZE, NOMINAL TONS VOLTAGE MINIMUM AIR ,00,0,0,0,0,0,0 8/ and 4 volt heaters are UL ap proved. 8/ and 575 volt heat ers are CGA ap proved. CGA minimum is,0.,0,0,0,0,0,0.0,0 FIELD WIR ING CONTROL WIRING 4volt thermostat with subbase; 6TH4 for manual changeover. 6TH44 for automatic changeover. Only required on units with suppiemental electric heat. POWER WIRING REFER TO ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH, THE WIRING AND OVERCURRENT PROTECTION REFER TO ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH, THE WIRING AND OVERCURRENT PROTECTION 0 Unitary Products Group

11 ELECTRICAL DATA Ba sic Unit (Direct Drive) POWER SUP PLY 8/ 8/ / 8/ / 8/ VOLTAGE LIMITATIONS (SEE NOTE ) COMPRESSOR MIN. MAX. RLA LRA NOTES:. Utili za tion Range A in ac cor dance with ARI Standard 0.. Dual element, time de lay type OUTDOOR FAN MOTOR, FLA AIR BLOWER MOTOR, FLA MINIMUM CIRCUIT AMPACITY MAX. MAX. FUSE HACR SIZE, BREAKER (SEE NOTE ) SIZE, 5 5 ELECTRICAL DATA Heat Pump with Supplemental Elec tric Heat (Direct Drive) POWER HEATER ACCESSORY NUMBER AIR BLOWER MOTOR FLA KW ELECTRIC HEATERS STAGES TOTAL MINIMUM CIRCUIT AMPACITY MAX. FUSE SIZE MAX. SIZE HACR BREAKER 8 CE06 CE06 CE04006 CE06 CE CE06 CE06 CE04006 CE06 CE CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE0746* CE04046* CE0446* CE0446* CE04058 CE08 CE08 Dual element, time delay type Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused * These elec tric heat ers DO NOT in clude a fuse box. If a fuse box is required to meet a local code ((eg., Chi cago), the following fuse block ac ces so ries are avail able for field in stal la tion. Elec tric Heat Correction Fac tors Nomi nal Volt age Voltage KW Cap Mul ti pier Fuse Block FB0 FB0546 8/ Volts 4 Volts Unitary Products Group

12 Unitary Products Group POWER HEATER ACCESSORY NUMBER AIR BLOWER MOTOR FLA ELECTRIC HEATERS MINIMUM CIRCUIT AMPACITY MAX. FUSE SIZE MAX. SIZE HACR BREAKER KW STAGES TOTAL CE06 CE06 CE04006 CE06 CE CE06 CE06 CE04006 CE06 CE CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE0746* CE04046* CE0446* CE0446* CE04058 CE08 CE CE06 CE06 CE04006 CE06 CE06 CE CE06 CE06 CE04006 CE06 CE06 CE CE055* CE075* CE0405 CE0 CE0 CE CE055* CE075* CE0405 CE0 CE0 CE CE0746* CE04046* CE0446* CE0446* CE0446* CE04058 CE08 CE08 CE (See Notes on Page ) ELECTRICAL DATA Heat Pump with Sup ple men tal Electric Heat (Direct Drive)

13 ELECTRICAL DATA Ba sic Unit (BeltDrive) POWER SUP PLY 8/ 8/ / 8/ / 8/ VOLTAGE LIMITATIONS (SEE NOTE ) COMPRESSOR MIN. MAX. RLA LRA NOTES:. Utili za tion Range A in ac cor dance with ARI Standard 0.. Dual element, time de lay type OUTDOOR FAN MOTOR, FLA AIR BLOWER MOTOR, FLA MINIMUM CIRCUIT AMPACITY MAX. MAX. FUSE HACR SIZE, BREAKER (SEE NOTE ) SIZE, 5 5 ELECTRICAL DATA Heat Pump with Supplemental Elec tric Heat (Belt Drive) POWER HEATER ACCESSORY NUMBER AIR BLOWER MOTOR FLA KW ELECTRIC HEATERS STAGES TOTAL MINIMUM CIRCUIT AMPACITY MAX. FUSE SIZE MAX. SIZE HACR BREAKER 8 CE06 CE06 CE04006 CE06 CE CE06 CE06 CE04006 CE06 CE CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE0746* CE04046* CE0446* CE0446* CE04058 CE08 CE08 Dual element, time delay type Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused * These elec tric heat ers DO NOT in clude a fuse box. If a fuse box is re quired to meet a local code ((eg., Chi cago), the fol low ing fuse block ac ces so ries are avail able for field in stal la tion. Elec tric Heat Correction Fac tors Nomi nal Voltage Voltage KW Cap Mul ti pier Fuse Block FB0 FB0546 8/ Volts 4 Volts Unitary Products Group 3

14 4 Unitary Products Group POWER HEATER ACCESSORY NUMBER AIR BLOWER MOTOR FLA ELECTRIC HEATERS MINIMUM CIRCUIT AMPACITY MAX. FUSE SIZE MAX. SIZE HACR BREAKER KW STAGES TOTAL CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE055* CE075* CE0405 CE0 CE CE0746* CE04046* CE0446* CE0446* CE04058 CE08 CE CE055* CE075* CE0405 CE0 CE0 CE CE055* CE075* CE0405 CE0 CE0 CE CE055* CE075* CE0405 CE0 CE0 CE CE055* CE075* CE0405 CE0 CE0 CE CE0746* CE04046* CE0446* CE0446* CE0446* CE04058 CE08 CE08 CE (See Notes on Page 3) ELECTRICAL DATA Heat Pump with Sup ple men tal Electric Heat (BeltDrive)

15 UNIT DIMENSIONS ( 3, 4 & 5 TON) (DirectDrive Units) OUTDOOR COIL RETURN AIR AIR OUTDOOR AIR OUTDOOR AIR (Economizer) All dimensions are in inches. They are sub ject to change without notice. Certified di mensions will be provided upon request. UTILITIES ENTRY DATA CLEARANCES Front 4" " (Less Econo mizer) Back 36" (With Economizer or Fixed Air/Motorized Air Damper) Left Side (Filter Access) 4" (Less Econo mizer) 36" (With Econo mizer) Right Side (OD Coil) 4" Below Unit " Above Unit 7" (For Outdoor Air Discharge) NOTE: Units and duct work are ap proved for zero clear ance to com bus ti ble ma te ri als when equipped with elec tric heat ers. Units may be installed on com bus ti ble floors made from wood or class A, B or C roof covering ma te rial. Units must be in stalled ou doors. Overhanging structures or shrubs should not Unitary Products Group HOLE KNOCKOUT SIZE (DIA.) A 7/8" * B " * USED FOR Control Wir ing (Side or Bottom)** Power Wiring (Side or Bottom) *Knockouts in the bot tom of the unit can be located by the slice in the insulation. **Do not remove the " knockout ring.

16 UNIT DIMENSIONS CONT'D. ( 3, 4 & 5 TON) 7 REAR VIEW SIDE AND RETURN AIR DUCT OPENINGS DUCT COVERS Units are shipped with all air duct openings covered. For side duct applications;.remove and discard the supply and return air duct cov ers..connect ductwork to duct flanges on the rear of the unit. For bottom duct applications;. Remove the side supply air duct cover to gain ac cess to the bottom supply air knockout panel.. Remove and discard the bottom knockout panel. 3. Replace the side duct cover. 4. With filter section ac cess panel removed from the unit, remove and discard the bottom return air knockout panel. 5. Replace the filter access panel CON DEN SATE DRAIN (must be trapped) REAR VIEW DE TAIL A UNIT WITH ECONOMIZER RAIN HOOD L.H. END VIEW B 3 A 8 4 REAR VIEW DE TAIL B UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAIN HOOD A L.H. END VIEW DIMENSION A FIXED OUTDOOR AIR DAMPER MOTORIZED DAMPER Unitary Products Group

17 ROOF CURB DIMENSIONS 3, 4 & 5 TON COMPRESSOR AND OUTDOOR COIL END OF UNIT DUCT SIZES: Supply Air = 9" x 9" Return Air = 9" x 9" COMPONENT WEIGHTS AND CENTER OF GRAVITY UNIT WEIGHT* (lbs.) BASIC UNIT CORNER WEIGHTS* (location, lbs.) A B C D CORNER BACK OPTIONS / ACCESSORIES Electric Heat (Nominal KW) 5 7 KW 8 0 KW 3 KW 8 Economizer Motorized Outdoor Air Damper 6 Barometric Relief/Fixed Outdoor Air Intake Damper 0 Roof Mount ing Curb 9 BeltDrive Blower CORNER 3 4 APPROXIMATE CENTER OF GRAVITY FRONT CORNER CENTER OF GRAV ITY CO OUT DOOR COIL Unitary Products Group 7

18 FACTORY INSTALLED OPTIONS BELTDRIVE BLOWERS Adjustable beltdrive blowers, providing maximum flexibility to handle many airflow requirements, are available on all models. AIR FILTERS Units come standard with " throwaway filters. The unit filter racks can accommodate " or " filters without any modifications. FIELDINSTALLED ACCESSORIES SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZER Includes a slidein/plugin damper assembly with fully modulating spring return motor actuator capable of introducing up to 00% outdoor air, one outdoor air electronic enthalpy sensor and a rainhood with filters. The rainhood is painted to match the basic unit and must be fieldassembled before installation. Economizer dampers are % low leakage type. DUAL INPUT ELECTRONIC ENTHALPY ECONOMIZER Includes the same damper system and rainhood with filters as described for a single enthalpy economizer above except this accessory contains two enthalpy sensors. It uses a differential enthalpy control that compares the outdoor air versus the return air. The logic module then optimizes the economizer operation for additional savings over the single input economizer. MOTORIZED AIR DAMPER Includes a slidin/plugin damper assembly with a rainhood and filters. The outdoor air dampers open when the indoor fan motor is energized. The damper is capable of providing 0% through 00% of outdoor return air opening. MANUAL OUTDOOR DAMPER Provides 0% through % or 0% through 00% of return air opening (field adjustable). Designed for duct mounted side or bottom supply/return applications. Includes rain hood assembly and filter. ELECTRIC HEATERS Include nickel chromium elements, a terminal block, fuses (where required by UL), all the necessary connectors and hardware. All heaters utilize single point power supply hookup. Capacities from 5 KW thru KW heating are available. FUSE BLOCK KITS These kits have a fuse box with a fuse block and fuses. They're available for all 43 volt heaters and 8/3 volt heaters 7 KW and smaller. ROOF CURB This 4" high full perimeter roof curb is knocked down for field assembly and contains duct supports that can easily be shifted for the desired unit duct arrangement. No deck is required because the unit underside is insulated. START ASSIST KIT (Standard on 4 ton units) Provides increased starting torque for 3 and 5 ton single phase units in areas with low voltage conditions. It contains a.5 OHM PTCR temperature resistor with a support clip and hardware for mounting. ANTIRECYCLE TIMER A timer to prevent the unit compressor from short cycling. It assures 5 minutes off time between compressor cycles. OUTDOOR COIL GUARD Consists of grilletype sections for assembling over the outdoor coil to protect it from damage. WALL THERMOSTAT The units are designed to operate with 4volt electronic and electromechanical thermostats. All units can operate with single stage heat/single stage cool thermostats with or without the economizer. To obtain maximum economizer operating savings, a two stage cooling thermostat should be used. To obtain two stage cooling operation, a jumper wire must be removed on the low voltage relay board. (See unit wiring diagram.) OUTDOOR THERMOSTAT A 4volt thermostat providing two stages of control for units equipped with supplemental electric heaters. 8 Unitary Products Group

19 TYPICAL APPLICATIONS ROOF JACK INSTALLATION ROOF CURB INSTALLATION SLAB ON GROUND INSTALLATION TYPICAL ROOFTOP INSTALLATION FIELDSUPPLIED DISCONNECT SWITCH CONDENSAT E ROOF CURB TO POWER CONTROL WIRING TO INDOOR THERMOSTAT RETURN AIR DUCT AIR DUCT Unitary Products Group 9

20 The motorized air damper includes a slidin/plugin damper assembly with a rainhood and filters. The outdoor air dampers open when the indoor fan motor is energized. The damper is capable of providing 0% through 00% of outdoor return air opening. The manual outdoor damper provides 0% through % or 0% through 00% of return air opening (field adjustable). Designed for duct mounted side or bottom supply/return applications. Includes rain hood assembly and filter. 8//4 VOLT S ONLY 8//575 VOLT S ONLY Su per sedes: 5.06 TGC(99) 5.06 TGC (00) 05 York Drive Norman, OK 769 Subject to change without notice. Printed in U.S.A Copyright by York In ter na tional Cor po ra tion 998. All Rights Re served.