9
1
1 If your system type is...
If your system type is:
q Single Stage Heat and Cool
q Heat Only or Cool Only
Congratulations, you’re done!
If your system type is:
q Heat Pump* with Backup Heat
Continue with Advanced Installation to match your thermostat to your system
type.
*Heat Pump—an air conditioner that provides cooling in the summer, and also
runs in reverse in the winter to provide heating.
This thermostat works on 24 volt or 750 mV systems. It will NOT work on multi-
stage conventional systems.
Advanced Installation
Enter System Setup
To enter system setup, press and hold
both the s and t buttons until the display
changes (approximately 5 seconds).
Changing Settings
1. Press the s or t button to change
the setting.
2. Press the s and t buttons
simultaneously for one second to
advance to the next function.
3. Press the RUN button to exit and save
settings.
Heat Off Cool Auto On
Fan
Function
Setting
5
5
M32779
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