Honeywell CT8775A Owner's Manual - Page 13

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. ROOM SET ❑ 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 indicator points to Room when the room temperature is displayed. M19489 Fig. 6. Temperature Setting Display. ROOM SET M19490 Fig. 7. Room Temperature Display. 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. 13 69-1676-1