Honeywell CHRONOTHERM T8621A - Manual (Page 20)

20
T8621A,C,D
PROGRAMMING THE THERMOSTAT
STEP 2
SET THE PROGRAM TIMES AND
TEMPERATURES FOR ONE DAY
Choose a day to program first. Monday
is used in the examples. Start by pro-
gramming the MORNING time and
temperatures. The thermostat requires
a MORNING program every day. Set
additional programs as desired.
Program the MIDDAY time and heat-
ing temperature if desired.
NOTE: It is possible to cancel any pe-
riod showing on the display except
MORNING by pushing the CAN-
CEL PERIOD key. To move to the
next period while programming,
simply press the PERIOD key again.
Press and release. Note that the display
shows MORNING and the preprogram-
med time and temperature.
If the display reads COOL, press and
release to switch to HEAT.
Press and hold until MONDAY (or the
desired day) appears in the display.
Press and hold until the display shows
the time that the temperature should be
at the comfort setting.
Press and hold until the display shows
the desired heating temperature.
If the display flashes while holding
down TEMPERATURE WARMER or
COOLER, the setting limit has been
reached. If thermostat is an auto-
changeover model, the heating tempera-
ture must be at least 3 degrees below the
air conditioning temperature. For ex-
ample, if the cooling setting is 75
°
F, the
maximum heating setting is 72
°
F. To
set a higher heating temperature, first
raise the cooling setting.
Press and release. The display shows
MIDDAY, but no time or temperature.
Press and hold until the display shows
the time to start the energy saving pe-
riod.
Press and hold until the display shows
the desired temperature.
SET
PT
MON TUE WED THU FRI HEAT
MORNING
AM
SET
PT
MON TUE WED THU FRI HEAT
MORNING
AM
SET
PT
MON TUE WED THU FRI HEAT
MORNING
AM
SET
PT
MON TUE WED THU FRI HEAT
MORNING
AM
SET
PT
MON TUE WED THU FRI HEAT
MORNING
AM
PERIOD
DAY
SET
HEAT/COOL
AHEAD
BACK
WARMER
COOLER
SET
PT
MON TUE WED THU FRI HEAT
DAYTIME
SET
PT
MON TUE WED THU FRI HEAT
DAYTIME
AM
SET
PT
MON TUE WED THU FRI HEAT
DAYTIME
AM
MIDDAY
MIDDAY
MIDDAY
AHEAD
BACK
PERIOD
WARMER
COOLER