Compatibility Section：
For conventional (gas/oil/propane/electric), Heat-pump, and Dual Fuel Systems.
> 2-Heat & 2-Cool > 1-Heat & 1-Cool > Heat Only > Cool Only
> Heat Pump with Auxiliary Heating and Emergency Heating
C-wire is required to power the thermostat
04
Incompatible wiring and voltage
Please check the wall plate of your old thermostat to see if there's any indication as follows:
• Does not work with electric baseboard heat(110VAC~240VAC)
• Does not work with millivolt systems
• Does not support S terminals for indoors and outdoors sensors.
NOTE : If you are unsure, please contact a professional for help or call 1-800-264-3457
110 VAC
or
120 VAC
or
240 VAC
L1 L2
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