Thermostat Compatibility Checker

Remove the faceplate of your existing thermostat. Then, select the wires you have using the diagram below.

W/W1

Y/Y1

O/B

AUX

W/B

Y/O

Other

G2/G3

S/S1/S2

1/2/3/4

H/Hum/Hum1

H2/Hum2

D/DH/Dhum/Dehum

DH2/Dhum2/Dehum2

Show More Check Compatibility Reset

Please Note: If your existing thermostat has 110/240V wires (look for black wires capped with wire nuts), it is a high voltage system and is, unfortunately, not compatible with the iDevices Thermostat.