Honeywell CT8602C Owner's Manual - Page 4

batteries within approximately 30 seconds from the time the batteries are removed to prevent program loss and reprogramming. IMPORTANT: The low battery warning displays about two months before the batteries are dead. When the batteries are dead, the system shuts down. After batteries are replaced, thermostat requires reprogramming. Fig. 11-Battery placement. M2083 BATTERY PLACEMENT (NOTE CORRECT PLUS AND MINUS DIRECTION) MOUNTING THE THERMOSTAT Hang the thermostat on the tabs at the top of the base (Fig. 12a). Swing down and press on lower edge until thermostat snaps into place (Fig. 12b). Open the cover, and tighten the captive mounting screws (Fig. 12c). SETTING DAY AND TIME Set present day and time. When the thermostat is first turned on, the display will read 1:00 PM and room temperature. It will go off for a few seconds, then begin to flash on and off. Press SET PRESENT . DAY/TIME Press TIME or AHEAD Press SET PRESENT . DAY/TIME BACK to set the current time. Press to set the current day. Each press of the DAY DAY KEY advances the display one day. If the display does not come on: • Check mounting of thermostat to wallplate. If loose or misaligned, remove thermostat and reinstall on wallplate, making sure it is firmly attached. • Check to see that all the batteries are good and installed correctly. Fig. 12-Mounting thermostat on wallplate. A. B. PM MON RETURN HEAT ON C. PM MON RETURN HEAT ON RUN PROGRAM SET PRESENT DAY/TIME DAY HOLD TEMP SET HEAT/COOL WAKE SLEEP LEAVE RETURN TIME AHEAD TEMPERATURE PRESENT SETTING WARMER SKIP NEXT PERIOD BACK COOLER CHANGE TO LAST PERIOD 69-0446-2 4 M8849