Step 11. Operating The Thermostat; Step 12. Check Operation Of Heating And/Or Cooling System - Honeywell THE DIGITAL ROUND CT8775A Owner's Manual

STEP 11. OPERATING THE THERMOSTAT

NOTE: Batteries are not required because the temperature setting is held permanently in memory.
Backlit Display
The backlight can be turned on by turning the dial, or pushing the backlight button (see Fig. 5).
Display Temperature Setting
Turn the dial one click to display the temperature setting (see Fig. 6). A
indicator points to Set when the temperature setting is displayed.
If a change to the temperature setting is not made within five seconds, the
mode will switch to the room temperature display (see Fig. 7). A
points to Room when the room temperature is displayed.
Adjust Temperature Setting
Turn the dial clockwise to raise the temperature setting. Turn the dial counterclockwise to lower the temperature
setting.

STEP 12. CHECK OPERATION OF HEATING AND/OR COOLING SYSTEM

Heating System
Slide the system switch to Heat and the Fan switch to Auto (CT8775C only).
Turn the dial clockwise to raise the temperature setting several degrees above the room temperature.
A flame will appear in the display to indicate the thermostat has called for heating. The heating system should turn on.
Turn the dial counterclockwise to lower the temperature setting below the room temperature.
The flame will disappear from the display to indicate the thermostat has ended the call for heating. The heating
system should turn off.
indicator
13
Fig. 6. Temperature Setting Display.
Fig. 7. Room Temperature Display.
ROOM
SET
M19489
ROOM
SET
M19490
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