Selecting system mode
1. Press SYSTEM to display options.
2. Press SYSTEM again to select an option. You may need to press two or three times to make a
selection—the selected option blinks.
3. Press DONE to save setting.
Possible system modes:
HEAT: Controls only the heating system.
COOL: Controls only the cooling system.
OFF: Heating/cooling systems are off.
AUTO: Selects heating or cooling depending on the indoor temperature.
EM HEAT (heat pumps with aux. heat): Controls auxiliary/emergency heat. Compressor is locked out.
Note: The AUTO and EM HEAT system settings may not appear, depending on how your thermostat
was installed.
Adjusting program schedules
1. Press SCHED, then EDIT. Screen displays day buttons at top.
2. Press day buttons (MON–SUN) to select days.
3. Press s or t to set Wake time for selected day(s).
4. Press s or t to set Heat and Cool temperature for this time period.
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