Equipment Control Module | Furnace |
Heat Pump
RVS Cooling
Heat Stage 3 (furnace) Heat Stage 2 (furnace)
Heat/Cool Stage 1
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 | |
Y1 / W2 | W/W1 | |
W/W1 | 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 * |
O |
W2** |
Y |
R |
C |
*Indicates connection may not be required/available.
**Some heat pumps may designate W1.
***Option 19 set to 2.
A09125
Fig. 34 − Variable Speed, Multi−Stage and Step Modulating Furnace with
Single−Stage Heat Pump
80
