FIVE WIRE
THREE-WIRE
HEATING-ONLY
BLOWER DOOR SWITCH
BLK
BLK
WHT
WHT
GND
GND
AUXILIARY
115-V FIELD-
J-BOX
SUPPLIED
DISCONNECT
FURNACE
Fig. 25 - - Heating and Cooling Application Wiring Diagram with 1- -Stage Thermostat
Fig. 24 - - Furnace Control
NOTE 2
W
C
R
G
W
C
R
O
N
T
R
G
O
COM
L
NOTE 1
Y
24-V
TERMINAL
BLOCK
NOTES:
1.
Connect Y-terminal in furnace as shown for proper blower operation.
2.
Some thermostats require a "C" terminal connection as shown.
3.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
Representative drawing only, some models may vary.
21
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
THERMOSTAT
Y
FIELD-SUPPLIED
TERMINALS
DISCONNECT
CONDENSING
UNIT
TWO
WIRE
A190023
208/230- OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
GND
A190079