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CHECKPOINT:C WIRE
√
Do your have a C wire connected to you old thermostat ?
YES
Great, please continue
to the NEXT PAGE.
NO
Go to install
with a ECM.
RC RH G Y W C RC RH G Y W C
TIPS:
The wiring on your old thermostat may look different, just check to see if there’s
a C wire.
Install your thermostat
with a C wire
If you have a C wire, it will power your thermostat. you won’t need the Electric
Control Module included in the box.
TIPS:
TO install accessories(humidifier, dehumidifier or ventilator)please refer to the wiring
diagrams at wiring.
3130
A1
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