f.Press until the setting is 10°F (6°C) above room temperature.

Your cooling system and fan should stop.

g.Set the System switch to OFF and the Fan switch to AUTO. The cooling system and fan should be off.

Operation

Change the clock for Daylight/Standard Time

a.Press once. The time is displayed.

b.Press and hold or until the correct time is displayed.

c.Press once.

The current time and day and the current temperature are displayed.

Set the Fan and System switches

The switches on the bottom of the thermostat faceplate (Fig. 16 page 11) control the operation of your fan and the heating and cooling system. Set the Fan switch first and then set the System switch.

 

Switch

Setting

Result

 

 

 

 

 

Fan

Auto

A single-speed fan turns on automatically with the air conditioner or furnace.

 

 

 

 

A two-speed fan usually runs on high with the air conditioner and on low with the furnace.

 

 

 

Auto is the normal setting for most homes.

 

 

 

 

 

 

 

On

The fan runs continuously. Use this setting for improved air circulation during special occasions

 

 

 

or for more efficient air cleaning.

 

 

 

Note: In a heat-only system, the fan runs continuously only if the fan wire has been connected to

 

 

 

the G terminal on the back of the thermostat.

 

 

 

 

 

69-0654-5

 

OPERATION 17

Page 17
Image 17
Honeywell CT3300 Operation, Change the clock for Daylight/Standard Time, Set the Fan and System switches, Setting Result