Use and Care Guide

2
System operation settings
1 Press the Mode button to cycle to the next
available System mode.
2 Cycle through the modes until the required
System mode is displayed and leave it to
activate.
NOTE: Available System modes vary by model and
system settings.
System modes:
‒ Auto
‒ Heat
‒ Cool
‒ Off
‒ Em. Heat (TH4210U only)
Set the time and date
Time
1 Press Menu, and then press to go to TIME.
Press Select.
2 Press
or to choose between 12 or 24 hour.
Press Select.
3 Use
or to adjust the hour. Press Select.
4 Use
or to adjust the minutes. Press Select
to exit Time menu.
Date
1 If previously setting time, continue to Step
2. If at the Home screen, press Menu on your
thermostat.
2 Press
or to go to DATE. Press Select.
3 Use
or to adjust year. Press Select.
4 Use the
or to adjust month. Press Select.
5 Use the
or to adjust Date. Press Select to
save and exit Date menu.
Fan operation settings
1 Press the Fan button to cycle to the next
available Fan mode.
2 Cycle through the modes until the required Fan
mode is displayed and leave it to activate.
NOTE: Available Fan modes vary with system
settings.
Fan modes:
‒ Auto: Fan runs only when the heating or cooling system is
on.
‒ On: Fan is always on.