Honeywell T8665C Thermostat User Manual


 
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Setting Fan Key
Press Fan key until desired mode
(On or Auto) displays:
On: Fan operates continuously.
Auto: Fan operates only when heating
or cooling.
Setting Temporary Temperatures
You can override the current schedule period to
temporarily change the temperature setting
until the next schedule period, or you can
change and hold the temperature setting
indefinitely. You can also change the
temperature setting until a designated day and
period (for example, while you are on vacation).
Changing Temperature to Temporary
Setting Until Next Schedule Period
Press increase or decrease key until the
desired temperature setpoint displays.
While selecting a temporary setting, only the setpoint
displays.
The temporary temperature setting you select
displays for approximately three seconds. The
display reads “Temporary” until the next period
begins or when you cancel the temporary
temperature setting.
M1456
3
Temporary Setting
Fan