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52C,P Package Terminal Air Conditioners and Heat Pumps

Wiring Diagrams

INDEX

UNIT TYPE VOLTAGE FIGURE NO. (1 Ph-60 Hz) Heat Pump Units 208/230, 1 265 208/230, 2 265

Heat/Cool Units AA,CP 52CE, PE RC,RP AA,CP RC,RP

LABEL DIAGRAM

AA,CP 52CQ, PQ RC,RP

52CQ501184 52CQ501204

208/230, 265 208/230, 265

Cooling Only Units

3 4 5 6 FIGURE NO. 7

52CQ501184 52CQ501204 52CQ501184 52CQ501514 LABEL DIAGRAM 52CQ501512

52PC

208/230, 265 PART NO. Accessory EM-KIT

ITEM Energy Management (EM) Kit AA CP RC RP -- -- -- --

LEGEND Standard Chassis Corrosion Protection Wall Thermostat Control (Standard Chassis) Wall Thermostat Control (with Corrosion Protection)

LEGEND

CAP COMP CON CR FCS FGT FM FR GND HR1 HR2 HTR IFT IT NEC OFT OL PCBD PLS PRI PR RVR RVS -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Capacitor Compressor Motor (2) Circuit Plug Cap Compressor Relay Fan Cycle Switch Freeze Guard Thermostat Fan Motor Fan Relay Ground Heater Relay Heater Relay Heater Indoor Frost Thermistor Indoor Thermostat National Electrical Code Outdoor Frost Thermostat Overload Printed Circuit Board Primary Limit Switch Primary Primary Relay Reversing Valve Relay Reversing Valve Solenoid SEC SLS SSS ST SW TRANS -- -- -- -- -- -- Secondary Secondary Limit Switch Speed Selector Switch Start Thermistor Switch Transformer Component Connection (Marked) Component Connection (Unmarked) Terminal Board Connection Field Splice << Splice (Marked) Terminal Connection -- Male/Female Field Control Wiring Accessory or Optional Wiring Factory Wiring To indicate common potential only, not to represent wiring.

NOTES: 1. Recommended for use on gounded power supply only. 2. Compressor and fan motor thermally protected. 3. Use copper conductors only. 4. All wiring must conform with NEC and local codes. 5. Dashed lines indicate components when used. 6. Field control wire suitable for NEC class 2 control circuit, at 24 volts. (Fig. 2, 4, and 6) 7. Service cords are standard on all models. All 265-volt corded models will require a field-installed electrical subbase.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 132 Catalog No. 535-20054 Printed in U.S.A. Form 52C,P-2W Pg 1 4-03 Replaces: 52C,P-1W Book 1 4 Tab 9a 11a

Fig. 1 -- 52CQ, PQ -- 208/230-1-60 and 265-1-60 Standard Units

2

TYPICAL THERMOSTAT INTERFACE T'STAT OUTPUT: RC CONTROLER OUTPUT: UNIT OPERATION: `G' -- 24 VAC `FR' -- LINE VAC FAN `G' -- 0 VAC `FR' -- 0 VAC `Y' -- 24 VAC `HR1 & HR2' -- LINE VAC HEATING `O' -- 0 VAC `RVR' -- LINE VAC `W' -- 24 VAC `HR1 & HR2' -- LINE VAC HEATING `Y' -- 24 VAC `CR' -- LINE VAC COOLING `O' -- 24 VAC `RVR' -- 0 VAC `R' -- 24 VAC `R' -- 24 VAC OUTPUT POWER TO WALL `C' -- COMMON `C' -- COMMON THERMOSTAT 1. If `W' is ON, then `FR' is forced ON (regardless of `G') & `CR' is forced OFF. 2. If `Y' is ON, then `FR' is forced ON (regardless of `G'). 3. If IFT (indoor coil) is < 20° F, then `CR' is forced OFF until IFT is > 50° F.

Fig. 2 -- 52CQ, PQ -- 208/230-1-60 and 265-1-60 Units with Wall Thermostat Control

3

Fig. 3 -- 52CE, PE -- 208/230-1-60 and 265-1-60 Standard Units

4

TYPICAL THERMOSTAT INTERFACE T'STAT OUTPUT: `G' -- 24 VAC `G' -- 0 VAC `W' -- 24 VAC `W' -- 0 VAC `Y' -- 24 VAC `Y' -- 0 VAC RC CONTROLER OUTPUT: `FR' -- LINE VAC `FR' -- 0 VAC `HR1 & HR2' -- LINE VAC `HR1 & HR2' -- 0 VAC `CR' -- LINE VAC `CR' -- 0 VAC UNIT OPERATION: FAN HEATING COOLING

`R' -- 24 VAC `R' -- 24 VAC OUTPUT POWER TO WALL `C' -- COMMON `C' -- COMMON THERMOSTAT 1. If `W' is ON, then `FR' is forced ON (regardless of `G') & `CR' is forced OFF. 2. If `Y' is ON, then `FR' is forced ON (regardless of `G'). 3. If IFT (indoor coil) is < 20° F, then `CR' is forced OFF until IFT is > 50° F.

Fig. 4 -- 52CE, PE -- 208/230-1-60 and 265-1-60 Units with Wall Thermostat Control

5

Fig. 5 -- 52PC -- 208/230-1-60 and 265-1-60 Cooling Only Units

6

TYPICAL THERMOSTAT INTERFACE T'STAT OUTPUT: `G' -- 24 VAC `G' -- 0 VAC `Y' -- 24 VAC `Y' -- 0 VAC RC CONTROLER OUTPUT: `FR' -- LINE VAC `FR' -- 0 VAC `CR' -- LINE VAC `CR' -- 0 VAC UNIT OPERATION: FAN

COOLING

`R' -- 24 VAC `R' -- 24 VAC OUTPUT POWER TO WALL `C' -- COMMON `C' -- COMMON THERMOSTAT 1. If `W' is ON, then `FR' is forced ON (regardless of `G') & `CR' is forced OFF. 2. If `Y' is ON, then `FR' is forced ON (regardless of `G'). 3. If IFT (indoor coil) is < 20° F, then `CR' is forced OFF until IFT is > 50° F.

Fig. 6 -- 52PC -- 208/230-1-60 and 265-1-60 Cooling Only Units with Wall Thermostat Control

7

Fig. 7 -- Energy Management Kit -- All Models

Copyright 2003 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 132 Catalog No. 535-20054 Printed in U.S.A. Form 52C,P-2W Pg 8 4-03 Replaces: 52C,P-1W Book 1 4 Tab 9a 11a

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