WIRING DIAGRAMS (cont.)
Thermostat
RVS Cooling | O/B |
Heat Stage 3 (furnace) | W |
Heat/Cool Stage 1 | Y1 |
Heat/Cool Stage 2 | Y/Y2 |
Fan | G |
24VAC Hot Heating ** | Rh |
24VAC Hot Cooling | Rc |
24VAC Common | C |
Furnace
W2
W/W1
Y1
Y/Y2
G
R
DHUM
COM
Heat Pump
O |
W2* |
Y1 |
Y/Y2 |
R |
C |
* Some heat pumps may designate W1.
**Remove jumper when using split power (Indoor and Outdoor Units utilize separate transformers).
A12241
Fig. 9 - Variable Speed, Multi-Stage, Stage Modulating and Single-Stage
Furnace with 2-Stage Heat Pump
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