White Rodgers 1F90W-71 manual Operating Your Thermostat

Models: 1F90W-71

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14.Between heating and cooling seasons, I want to turn my system off. Can I do this without affecting my thermostat pro- gramming?

Any time you wish to turn your system off,

simply press

SYSTEM

until the display shows

HEAT-OFF-COOL-AUTO

OFF. This will not affect your thermostat’s programming in any way. To turn the sys-

tem back on, press SYSTEM until HEAT,

HEAT-OFF-COOL-AUTO

COOL, etc. is displayed. The system will automatically begin operating according to the current thermostat program, unless the thermostat is in the HOLD mode. See

OPERATING YOUR THERMOSTAT.

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 your clock, follow the instruc- tions for setting current time and day. See ENTERING YOUR PROGRAM. Thermo- stat programming is not affected when you change the clock.

16.Do I have to reprogram my thermostat after I change the batteries?

When the thermostat is on the wall and the system has power, the thermostat is being powered by a 24v AC 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 are no

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White Rodgers 1F90W-71 manual Operating Your Thermostat