Equipment Control Module | Furnace | ||
Heat Stage 2 | O/B W2 |
| |
Heat Stage 1 | W/W1 | W1 | |
N/A | Y1 / W2 | Y1 | |
Cool Stage 1 | Y/Y2 | Y/Y2 | |
Fan | G | G | |
24VAC Hot Heating | Rh | R | |
24VAC Hot Cooling | Rc |
| |
** Dry Contact 1 | D1 |
| |
Dry Contact 2 | D2 | DHUM | |
24VAC Common | C | COM | |
Humidify | HUM | Humidifier Solenoid | |
Outdoor Air Temp | OAT | ||
Valve * | |||
Remote Room Sensor | RRS | Outdoor Sensor * | |
OAT/RRS Com | SRTN | Remote Room | |
|
| Sensor * | |
Air Conditioner
Y |
R |
C |
*Indicates connection may not be required/available.
**Option 19 set to 2.
A09152
Fig. 37 − Single−stage Furnace with Air Conditioner and Split Power
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