15.I live in an area where daylight savings time is observed. How do I change the thermostat clock twice a year without affecting thermostat programming?
To change the clock, follow the instructions for setting current time and day (see EN- TERING YOUR PROGRAM). Thermostat programming is not affected when you change the clock.
16.Do I have to reprogram my thermostat after I change the battery?
When the thermostat is on the wall and the system has power, the thermostat is being powered by a 24 VAC source. If power is lost, or if the thermostat is removed from the wall, the program will be retained for ap- proximately one minute if there is no bat- tery installed or if the installed battery is dead. If you are changing the battery after seeing a flashing BAT on the display, the installed battery may be dead. If you re- move the old battery and install a fresh one within one minute, you should not lose your thermostat programming. After installing a new battery, follow the procedures in CHECK YOUR PROGRAMMING to deter- mine whether your programming was main- tained.
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