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Wiring diagrams
Below are the wiring diagrams for common HVAC equipment.
Conventional heating and cooling system
G
S
Y1
Y2
M1
M2
C
RC
RH
O/B
W1
W2
Y1 Y2 C
Y1 Y2 W1 W2 R C G
For dual heat and cooling system,
if applicable.
Remove the jumper between Rh, Rc, or R terminals, adjust the DIP switch
on the back of the thermostat to 'Disconnect' if you have connected both
RC-wire and RH-wire to the wallplate, otherwise switch it to the 'Connect'
side.
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