44043-01 • 02/19/2010
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Operation
Selector Switches
The System Selector switch on the front of the thermostat
determines the operating mode of the thermostat. You may select
COOL, OFF, HEAT.
NOTE: Anytime you install or remove the thermostat from the
wallplate, slide the System Selector to the OFF position to prevent
the possibility of a rapid system On-Off.
The Fan switch should normally be located in the AUTO position.
The Fan will be turned on along with normal operation of your
system. In a normal gas or oil furnace, the Fan will be turned on
by your furnace after its warm-up delay. For electric heat and air
conditioning operation, the Fan will turn on with the system.
To run the Fan on continuously, slide the Fan switch to the ON
position.
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