41644_model44360_web.pmd

24

OPERATION

24

System Selector Switch

The System Selector switch on the front of the thermostat determines the operating

system

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.

off

heat

cool

Fan Switch

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, air conditioning, and heat pump operation, the Fan will turn on with the system.

To run the Fan on continuously, slide the Fan switch to the ON position.
fanauto

on

25

Temporary Manual Override

25

To temporarily change the current set temperature without affecting your program:

or

or

hold

/return

■Press and hold for about 1 second to enter Manual Override mode. When display flashes, you can release the key.

■Press again to change to your desired Set Tempera- ture. Hold the key for 2 seconds to fast-advance the Set Temperature.

■Press to return to normal mode, or wait 5 seconds for it to return automatically.

■The current program number will flash to signify the Temporary Override.

■At the next program change time, the Temporary Override is cancelled, and the next program tem- perature becomes the setpoint temperature.

SET TEMP

3

COOL TEMP

SA

PM

3

COOL TEMP

To end the Temporary Manual Override:

hold

■ Press and wait for HOLD to display on the LCD.

■ Press again. This will return the set temperature to the current program set temperature.

/return