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CT3451 PROGRAMMABLE THERMOSTAT
9 69-1620—1
4. Sleep
a. Press Select. Press ▼ or ▲ key to set Sleep
time.
b. Press Select. Press ▼ or ▲ key to set Sleep
temperature.
5. Repeat steps 1-4 in Setting Saturday and Sunday
Program section to set the Sunday program.
6. Press Select. End is displayed. Programming is
complete. The thermostat reverts to displaying the
current day time and temperature in five seconds.
7. Repeat programming steps to set heat or cool
program, as desired.
10 OPERATE YOUR THERMOSTAT
Displaying Temperature Setting
❑ Press ▼ or ▲ key once to display present
temperature setting. After approximately five seconds,
the thermostat displays the current time and room
temperature.
Setting Temporary Temperature Hold
❑ Press ▼ or ▲ key to set a temporary temperature
setting.
NOTE: The temporary temperature setting remains in
effect until the next program period. To cancel,
press Hold twice.
Setting Indefinite Temperature Hold
The Hold key allows you to indefinitely hold a
temperature. When Hold is active, the letters Hld are
displayed continuously. Hold can be canceled by
pressing the Hold key again.
❑ Press Hold.
❑ Press ▼ or ▲ key to set indefinite temperature
setting.
11 SET FAN AND SYSTEM
SWITCHES
Manually control Fan and System settings using the
switches located at the bottom of the thermostat case.
See. Fig. 14 for switch locations.
Fig. 14. Time/temperature display and System/Fan
switches.
Fan Switch
❑ The Fan switch settings are:
On: The fan runs continuously. Use for
improved air circulation.
Auto: Normal setting for most homes. In cooling,
the fan starts and stops with the cooling equip-
ment. In heating, the fan is controlled directly by
the heating equipment and starts a few minutes
after the heating equipment turns on (on most
systems). When the thermostat fuel switch is
set to the E position for electric heat, the fan
starts and stops with the heating equipment.
❑ Slide the Fan switch on the thermostat to the desired
fan setting.
M2056
4
SET
M2056
5
SET
M1855
6
SET
M2053
8
TEMPORARSET Y
M12640
A
TEMPORARY
WED
PM
M12641
A
M20515
S
Y
S
T
E
M
Cool Off Heat
Auto On
FAN
Hold
Select
TU
E
PM