Honeywell chronotherm t8621a Manual De Usuario

21

68-0058—1

T8621A,C,D

 PROGRAMMING THE THERMOSTAT

Program the EVENING time and tem-
perature, if desired.

Program the NIGHT time and tempera-
ture, if desired.

Set the cooling temperatures for all the
periods programmed.The program times
are the same for both heating and cool-
ing. Only the cooling temperatures need
to be programmed if programming has
been completed for heating. If you
change program times for cooling, you
are also changing the times for heating.

Press and release. The display shows
EVENING but no time or temperature.

Press and hold until the display
shows the time the temperature should
be at the comfort setting.

Press and hold until the display shows
the desired heating temperature.

Press and release. The display shows
NIGHT and the preprogrammed time
and temperature.

Press and hold until the display shows
the time to start the energy saving period.

Press and hold until the display shows
the desired heating temperature.

Press and release. The display shows
COOL, the preprogrammed cooling
temperature and the programmed start
time for NIGHT.

Press and hold until the display shows
the desired cooling temperature for
NIGHT.

If the display blinks while holding
down TEMPERATURE WARMER or
COOLER, the setting limit has been
reached. If thermostat can switch auto-
matically between heating and cooling,
the heating temperature must be at least
3 degrees F below the air conditioning
temperature. For example, if the heat-
ing setting is 72

°

 F, the minimum cool-

ing set-ting is 75

°

 F. To set the cooling

temperature lower, first lower the heat-
ing setting.

SET
PT

MON TUE WED THU FRI

HEAT 

EVENING

PM

SET
PT

MON TUE WED THU FRI

HEAT 

EVENING

PM

SET
PT

MON TUE WED THU FRI

HEAT 

EVENING

PM

SET
PT

MON TUE WED THU FRI

HEAT 

NIGHT

PM

SET
PT

MON TUE WED THU FRI

HEAT 

NIGHT

PM

SET
PT

MON TUE WED THU FRI

HEAT 

NIGHT

PM

SET
PT

MON TUE WED THU FRI

COOL 

NIGHT

PM

SET
PT

MON TUE WED THU FRI

COOL 

NIGHT