Equipment Control Module | Furnace |
Air Conditioner
Heat Stage 2
Heat Stage 1
Cool Stage 1
Cool Stage 2
Fan
24VAC Hot Heating 24VAC Hot Cooling Dry Contact 1 Dry Contact 2 24VAC Common Humidify
Outdoor Air Temp
Remote Room Sensor
OAT/RRS Com
O/B W2 | W2 | |
W/W1 | W/W1 | |
Y1 / W2 | Y1 | |
Y/Y2 | Y/Y2 | |
G | G | |
Rh | R | |
Rc |
| |
D1 |
| |
D2 | DHUM | |
C | COM | |
HUM | Humidifier Solenoid | |
OAT | ||
Valve * | ||
RRS | Outdoor Sensor * | |
SRTN | Remote Room | |
| Sensor * |
Y1 |
Y/Y2 |
R |
C |
* Indicates connection may not be required/available.
A09123
Fig. 32 − Variable Speed, Step Modulating, Multi−Stage and Single−Stage
Furnace with Two−Stage Air Conditioner
78
