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WIRING DIAGRAMS(cont.)
Thermostat Furnace Air Conditioner
Heat Stage 1 W/W1
W/W1
Compressor Y/Y2
Y/Y2
Y
Not Used Y1
Fan G G
24VAC Hot Heating Rh R R
24VAC Hot Cooling Rc
Dry Contact 1 D1
Dry Contact 2 D2
24VAC Common C COM COM
Outdoor Air Temp OAT
Remote Room Sensor RRS
OAT/RRS Com OAT/RRS
Outdoor Sensor *
Remote Room
Sensor *
* Heat Stage 2 O/B W2
W2*
* Indicates connection may not be required/available.
A09157
Fig. 22 − Furnace with Air Conditioner