Installation Guide

1.12 Determine your heating/cooling system type

Important! Heating/cooling system type must be set so that your thermostat

operates properly and does not damage your system.

1.12a If you have a traditional system (natural gas forced air with A/C), your

thermostat is set up by default to control this system.

Go to Step 2 .

1.12b If your system is:

 • Multistageequipment

 • Anytypeofheatpump

 • Hydronic

 • Other

 YouMUSTchangethesystemtypebysettingsystemfunction1.

See “Setting functions and options” in the User Guide.

Not sure of your heating/cooling system type?

Refer to FAQ on wifithermostat.com/support