Fan Switch (Auto/On) - Honeywell PRO TH3110B Operating Manual

Non-programmable digital thermostat
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Operating Manual
Fan switch
Set
switch to choose whether the fan
F F A A N N
runs continuously or only as needed.
Set the
switch to Auto or On.
F F A A N N
In "Auto" mode (the most commonly
used setting), the fan runs only when
the heating or cooling system is on.
If set to "On," the fan runs
continuously. Use this setting for
improved air circulation, or for
more efficient air cleaning.
6

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