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T8624C,D
PROGRAMMING THE THERMOSTAT • OPERATING THE THERMOSTAT
ON
AUTOON
M3763
AUTO
FAN
FAN
SET THE SYSTEM AND FAN
SWITCHES ON THE SUB-
BASE.
Depending on thermostat model,
some of the switch positions shown
may not be available on the ther-
mostat. Note the positions provided
on the subbase, then set the
switch(es) as desired.
First set the fan switch.
FAN ON: The fan runs continuously. Use for improved
air circulation during special occasions or for more effi-
cient electronic air
FAN AUTO: Normal setting
for most homes. The fan goes
on and off with the air condi-
tioner in summer. In winter, the
fan on most
systems starts a few minutes
after the furnace comes on. It
stops a few minutes after the
furnace goes off. The fan starts
and stops with the furnace in
some electric heat systems and
with the compressor in heat
pump systems.
Then set the system switch.
HEAT: The thermostat controls
your heating system.
AUTO (select models only): The thermostat controls
either your heating or cooling system, depending on
room temperature.
COOL: The thermostat controls your cooling system.
AUTOHEAT OFF
COOL
HEAT OFF
COOL
AUTO
HEAT OFFCOOLAUTO
M3762
HEAT OFFCOOLAUTO
OFF: Both the heating and cooling systems are off.
This completes the programming of the thermostat.
If the thermostat is removed from the wall to program, replace it following the procedure on page 5.
Operating the Thermostat
TEMPORARILY CHANGING THE PROGRAM
These features allow the program to be customized for
those times when someone comes home early, or stays
up late, or plans to be out for the evening.
To keep the current temperature through the
next program period:
SKIP
NEXT
PERIOD
Press and release. The name
of the period to be skipped
will flash in the display until
the next regularly scheduled
period starts.
To go back to the temperature of the previ-
ous program period:
CHANGE
TO LAST
PERIOD
Press and release. The dis-
play will show the name of
the previous period and flash
TEMPORARY until the next
regularly scheduled period starts.
Use the WARMER/COOLER keys to set the tempera-
ture.
You have completed programming the cooling tempera-
tures.
Press and release to start the program.
Go to Step 4.
STEP 4
cleaning.
TUE
LEAVERETURN
PM
M5044
TUE
WAKE TEMPORARY
PM
M5045