Wiring Diagrams | 57SM Series Heat Pump
8733942411 (2017/06)Revised 07-17
Figure # 67
HEATER PACKAGE WIRE HARNESS PLUG
CONNECTED TO MAIN CONTROL BOX
BL - W2
MAKE SURE BOTH ARE OFF BEFORE SERVICING.
CAUTION: UNIT CONTAINS MULTIPLE POWER SUPPLIES -
WT - W1
GY - C
NOTE: L1 AND L2 PROVIDE POWER TO
CONTROL TRANSFORMER AND BLOWER MOTOR
L1
L2
DENOTES FIELD TERMINATED COMPONENTS
DENOTES OPTIONAL WIRING
DENOTES OPTIONAL WIRING
L1
L2
POWER FEED 1
POWER FEED 2
HR2B
HEATER CIRCUIT 1
HEATER CIRCUIT 3
HEATER CIRCUIT 4
HLS3
HT3
HT4
HLS1
HT1
HLS2
HR1A
HR1B
HT2
HLS4
HEATER CIRCUIT 2
RD
BK
HR2A
RD
BK
RD
BK
RD
BK BK
RD
RD
BK
RD
BK
FOR REFERENCE ONLY Actual unit wiring may
vary from this example. Always refer to the wiring
diagram attached to the unit.
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