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2-stage Boiler
R
C
W1
W2
* Remove RH/RC factory jumper
C terminal to be connected to heating
transformer common
Fig. 11 - Dual Stage Boiler with Fan Coil, Dual Stage Cool
Step 5. Power On HVAC Equipment
After you've completed the wiring, you can apply power to the heating
and air conditioning equipment. The Comfort Series Wi- Fi Thermostat
receives power from the equipment and will automatically power on.
Y1
Y2
R
C
G
W2
W
Y2
C
RH
RC
G
Y
N/C
AUX
O/B
19
2-stage AC
Fan Coil
Y1
Y2
R
C
A13348
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