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Fig. 8—Heating and Cooling Application Wiring Diagram
A78461
115-VOLT FIELD-
SUPPLIED
FUSED
DISCONNECT
AUXILIARY
J-BOX
CONTROL
BOX
24-VOLT
TERMINAL
BLOCK
TWO-WIRE
HEATING-
ONLY
FOUR
WIRE
FIELD-SUPPLIED
FUSED DISCONNECT
CONDENSING
UNIT
TWO
WIRE
FURNACE
R
G
C
W R G Y
GND
GND
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
NOTE:
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
WHT
BLK
WHT
BLK
If any of the original wire,
as supplied, must be replaced, use
same type or equivalent wire.
NOTE: Connect Y-terminal as
shown for proper
operation.
W
Y
GND
THERMOSTAT
TERMINALS
6