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The System Selector switch on the front of the thermostat determines the operating mode of the thermostat.
You may select COOL, OFF, HEAT, AUTO. In order to take full advantage of this thermostat’s features, we
recommend using the AUTO mode. Refer to the Auto Season Changeover information on page 26.
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.
At the next program change, the Temporary Override is canceled, and the next program temperature becomes the setpoint temperature.
72
.
7I
.
70
.
24-25
OPERATION
System Selector Switch
Fan Switch
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AUTO COOL HEAT
TEMP
86
:
78
SET TEMP
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°
C
H
°
C
H
AM
PM
73
The Fan switch should normally be set 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, air conditioning, and heat pump operation, the Fan will turn on with the system.
To run the Fan continuously, slide the Fan switch to the ON position.
Temporary Manual Override
To temporarily change the current set temperature without affecting your program:
■ Press to return to normal mode, or wait 15 seconds for it to return
automatically.
■ The current program number will flash to signify the Temporary Override.
RETURN
ON AUTO
COOL OFF HEAT AUTO
Press and to change to your desired new temperature.
Press and hold or for about 1 second to enter Manual Override mode.
Display will flash.