Carrier Performance A07048 Installation Instructions Manual page 79

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