79
Variable Speed/Multi-Stage
Equipment Control Module Furnace Air Conditioner
Heat Stage 2 O/B W2 W2
Heat Stage 1 W/W1 W1
N/A Y1 / W2 Y1
Cool Stage 1 Y/Y2 Y/Y2 Y
Fan G G
24VAC Hot Heating Rh R R
*
24VAC Hot Cooling Rc
Dry Contact 1 D1
Dry Contact 2 D2 DHUM
24VAC Common C COM C
Humidify HUM
Outdoor Air Temp OAT
Remote Room Sensor RRS
OAT/RRS Com SRTN
Outdoor Sensor *
Humidifier Solenoid
Valve *
Remote Room
Sensor *
A08140
Fig. 35 -- Variable Speed/Multi-- Stage Furnace with Single--Stage
Air Conditioner
* Indicates connection may not be required/available.