Honeywell T8131C Owner's Manual page 5

Select LEAVE if you want an energy-saving
temperature while you are away at work or
school. (This will be a lower temperature during
heating season, or a higher temperature during
cooling season.)
Select RETURN if you want the house at a
comfortable temperature for activities before
bedtime. When deciding what time to set for
your RETURN period, include extra lead time,
depending on the outside temperature and
your furnace response time, to give the furnace
a head start to heat the house before you
arrive home. (Again, higher for heating or lower
for cooling.)
Select SLEEP if you want an energy-saving
temperature while you are sleeping. (For more
comfortable sleeping, some people choose not
to raise the cool temperature during the night.)
Fill in the times and temperatures you desire
for weekdays and weekends. If you decide not
to program the thermostat, it automatically
controls heating at 68 F (20 C) and cooling at
78 F (26 C), 24 hours a day. Also, you do not
need to enter a time and temperature program
for all periods if your schedule does not require
it. For example, a house that is occupied
during weekdays would not require programs
for LEAVE and RETURN.
When pressing the keys, use the ball of your
finger or a soft pencil eraser.
NOTE: Using sharp fingernails or pencil
points can damage the keypad.
If you make an error at any time during
programming, just press the Run Program
key, and continue again at the last step.
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