4
THE THERMOSTAT BUTTONS AND SWITCHES
Before you begin programming your thermostat, you should be familiar
with its features and with the display and the location and operation of
the thermostat buttons (see
Figure 8
). Your thermostat consists of two
parts: the
thermostat cover
and the
base
. To remove the cover, gently
pull it straight out from the base. To replace the cover, line up the cover
with the base and press gently until the cover snaps onto the base.
9
Indicates day of the week.
10
Flame icon
( ) is displayed when the SYSTEM switch is in the
HEAT position.
Snowfl ake icon
(
) is displayed (non-fl ashing)
when the SYSTEM switch is in the COOL position.
Snowfl ake
icon
(
) will be displayed (fl ashing) when the compressor is in
lockout mode.
11
Alternately displays current time and temperature.
12
Displays currently programmed set temperature (this is blank
when SYSTEM switch is in the OFF position).
13
The word
HOLD
is displayed when the thermostat is in the
HOLD mode.
FIGURE 8 – Thermostat buttons,
display and switches
CHECK THERMOSTAT OPERATION
COOLING SYSTEM
This thermostat has a time delay between cooling cycles to allow
the head pressure in the compressor to stabilize. If the temperature
is adjusted to call for cool within 5 minutes of the last cycle the
Snowfl ake icon
(
) will blink indicating the thermostat is locked
out. After 3 to 5 minutes, the compressor will start and the
Snowfl ake
icon
(
) will stop fl ashing. This helps prevent the compressor from
cycling too quickly and is normal operation for the thermostat.
1. Move SYSTEM switch to
COOL
position.
2. Press
to adjust thermostat setting below room temperature.
The blower should come on immediately on high speed, followed
by cold air circulation.
3. Press
to adjust temperature setting above room temperature.
The cooling system should stop operating.
HEATING SYSTEM
1. Move SYSTEM switch to
HEAT
position. If the heating system has
a standing pilot, be sure to light it.
2. Press
to adjust thermostat setting above room temperature.
The heating system should begin to operate.
3. Press
to adjust temperature setting below room
temperature. The heating system should stop operating.
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and display,
read the following information to learn about the many features of
the thermostat.
•
SIMULTANEOUS HEATING/COOLING PROGRAM STORAGE
–
When programming, you can enter both your heating and cooling
programs at the same time. There is no need to reprogram the
thermostat at the beginning of each season.
•
TEMPERATURE OVERRIDE
– Press
or
until the
display shows the temperature you want. The thermostat will
override current programming and keep the room temperature at
the selected temperature until the next program period begins.
Then the thermostat will automatically revert to the program.
•
HOLD TEMPERATURE
– The thermostat can hold any
temperature within its range for an indefi nite period, without
reverting to the programmed temperature. Press HOLD button.
HOLD will be displayed. Then choose the desired hold temperature
by pressing
or
. The thermostat will hold the room
temperature at the selected setting until you press RUN button to
start program operation again.
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate the
cooling system.
CAUTION
NOTE: To prevent static discharge problems, touch side
of thermostat to release static build-up before touching
any keys.
If at any time during testing your system does not operate properly,
contact a qualifi ed service person.
FAN OPERATION
If your system
does not
have a
G
terminal connection, skip to
Heating System
.
1. Turn on power to the system.
2. Move fan switch to
ON
position. The blower should begin to operate.
3. Move fan switch to
AUTO
position. The blower should stop
immediately.
1
(Up arrow) Raises
temperature setting.
2
(Down arrow)
Lowers temperature
setting.
3
TIME button.
4
PRGM (program)
button.
5
RUN (program)
button.
6
HOLD button.
7
FAN switch
(
ON, AUTO
).
8
SYSTEM switch
(
COOL, OFF, HEAT
).
1
8
9
11
10
7
6
5
4
3
2
12
13
THE DISPLAY
Do not set to OFF mode during periods when freezing
temperatures could occur.
CAUTION
