Honeywell CT3400 Thermostat User Manual


 
STEP 4 Program The Thermostat
work or school. (This will be a higher tem-
perature during heating season, or a lower
temperature during cooling season.)
DAYTIME is the time period you can set for 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.)
EVENING is the time period you want the
house at a comfortable temperature for
activities before bedtime. (Again, higher
heat or lower cool.)
NIGHT is the time period you can set for an
energy-saving temperature while you are
sleeping. (Again, lower heat or higher cool.
Although for more comfortable sleeping,
some people choose not to raise the cool
temperature during the night.)
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PROGRAMMING
After the batteries are installed, the thermostat
can be easily programmed in your hand before
it is installed on the wall.
If you would prefer to program the thermostat
after it is installed on the wall, skip to page 16,
and return later to this programming section.
The following personal programming chart
(pages 11 and 12) may be helpful when plan-
ning your program schedule of time and tem-
perature settings for various times of the day.
Four time periods are available—MORNING,
DAYTIME, EVENING and NIGHT. Each
period has its own setting key.
MORNING is the time period you want the
house at a comfortable temperature when
you get up and while you get ready for
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You will set one schedule for weekdays, one for
Saturday, and another for Sunday, because
your requirements will probably be different for
each.
Fill in the times and temperatures you desire for
weekdays, Saturday, Sunday. The factory-pre-
programmed time and temperature settings are
shown in parentheses. If you decide not to
program the thermostat, it automatically con-
trols to these settings. The thermostat requires a
time and temperature program for the MORN-
ING period. You can program DAYTIME and
EVENING, or leave them blank. You can also
change NIGHT or cancel it (see page 15), as you
please.
Before programming, remove the clear plastic
overlay covering the display.
When pressing the keys, use the ball of your
finger or a soft pencil eraser. Use of sharp finger-
nails or pencil points can damage the keypad.
If at any time during programming you make an
error, just press the RUN PROGRAM key, and
continue again at the step where you left off.