Carrier 50JS - Manual (Page 9)

Fig. 12—Wiring Schematics
A00073
FIELD SPLICE
TERMINAL (MARKED)
TERMINAL (UNMARKED)
SPLICE
SPLICE (MARKED)
FACTORY WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
ACCESSORY OR OPTIONAL
WIRING
TO INDICATE COMMON
POTENTIAL ONLY:
NOT TO REPRESENT WIRING AHA ADJUSTABLE HEAT ANTICIPATOR
C CONTACTOR
CAP CAPACITOR
CB CIRCUIT BREAKER
COMP COMPRESSOR MOTOR
CTD COMPRESSOR TIME DELAY
DB DEFROST BOARD
DFT DEFROST THERMOSTAT
DR DEFROST RELAY
EQUIP EQUIPMENT
FU FUSE
GND GROUND
HR HEATER RELAY
HTR HEATER
IFM INDOOR FAN MOTOR
LPS LOW PRESSURE SWITCH
OFM OUTDOOR FAN MOTOR
QT QUADRUPLE TERMINAL
RVS REVERSING VALVE SOLENOID
S.B. SLOW BLOW FUSE
TC THERMOSTAT - COOLING
TDR TIME DELAY RELAY
TH THERMOSTAT - HEATING
TRAN TRANSFORMER
NOTES:
1. IF ANY OF THE ORIGINAL WIRES FURNISHED ARE REPLACED, IT MUST BE
REPLACED WITH TYPE 90 DEGREE C WIRE OR IT’S EQUIVALENT.
2. SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES.
3. USE 75 DEGREE COPPER CONDUCTORS FOR FIELD INSTALLATION.
4. FOR HIGH SPEED IFM, DISCONNECT RED
WIRE FROM TDR 3 AND CONNECT BLK WIRE FROM IFM.
FOR MEDIUM SPEED, DISCONNECT RED WIRE
FROM TDR 3 AND CONNECT BLU WIRE FROM IFM.
5. DEFROST TIMER TO BE SET AT 90 MINUTES EXCEPT FOR 50JS048, 060 MODELS
SET AT 50 MINUTES.
LEGEND
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