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14. 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 your clock, follow the instruc-
tions for setting current time and day. See
ENTERING YOUR PROGRAM. Thermo-
stat operation is not affected when you
change the clock.
15. 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 maintained for
13. Between heating and cooling seasons, I
want to turn my system off. Can I do this
without affecting my thermostat program-
ming?
Any time you wish to turn your system off,
simply press
SYSTEM
HEAT - OFF - COOL - AUTO
until the display shows
OFF. This will not affect thermostat pro-
gramming in any way. To turn the system
back on, press
SYSTEM
HEAT - OFF - COOL - AUTO
until HEAT, COOL,
or AUTO is displayed. The system will auto-
matically begin operating according to the
current thermostat program, unless the ther-
mostat is in the HOLD mode. See OPER-
ATING YOUR THERMOSTAT.