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5
OPERATION
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. 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.
THE THERMOSTAT BASE
Other than and , the following buttons and switches are
located behind the door on the bottom of the thermostat cover
(see fig. 6). Pull the door down to open it.
The Thermostat Buttons and Switches
1
(Red arrow) Raises temperature setting.
2
(Blue arrow) Lowers temperature setting.
3
SET TIME/SET TEMP button.
4
VIEW PRGM (program) button.
5
RUN PRGM (program) button.
6
HOLD TEMP/ADV DAY button.
7
FAN switch (ON, AUTO).
8
SYSTEM switch (COOL, OFF, HEAT, EMER).
The Display
9
Indicates day of the week.
10
HEAT is displayed when the SYSTEM switch is in the
HEAT position. COOL is displayed when the SYSTEM
switch is in the COOL position. COOL or HEAT is displayed
(flashing) when the compressor is in lockout mode.
11
Alternately displays current time and temperature.
12
EMERGENCY is displayed when the SYSTEM switch is in
the EMER position.
13
Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
14
The word HOLD is displayed when the thermostat is in the
HOLD mode.
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
SET TEMP
ADV DAY
Figure 6. Thermostat display, buttons, and switches
3
2
1
4 5 6 7 8
EMER MALF AUX
SU
HOLD
SA
COOL
EMERGENCY
AM
MO TU WE TH FR
HEAT
9 910
1012 1113 14
11
COOL EMER
OFF HEAT
AUTOSET TIME VIEW PRGM RUN PRGM HOLD TEMP FAN ON
temperature at the selected temperature until the next
program period begins. Then the thermostat will automati-
cally revert to the program.
• HOLD TEMPERATURE — The thermostat can hold any
temperature within its range for an indefinite period, without
reverting to the programmed temperature. Press HOLD
TEMP/ADV DAY 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 PRGM button to start
program operation again.
• °F/°C CONVERTIBILITY — Press SET TIME/SET TEMP
and HOLD TEMP/ADV DAY buttons until the temperature
display is in Celsius (°C). To display Fahrenheit (°F), repeat
the process.
• TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostat has been accurately set in our factory. However,
if you wish, you may adjust your new thermostat tempera-
ture display to match your old thermostat. This can be
accomplished (within a ±4° range) as follows:
1. Press VIEW PRGM and HOLD TEMP/ADV DAY buttons
at the same time.
2. Press or to adjust the displayed temperature to
your desired setting.
3. Press RUN PRGM to resume normal program operation.
• COPY DAY FUNCTION — This feature allows Monday’s
program to be copied into the rest of the week’s program-
ming. This feature is only available the first time you
program your thermostat. To use this feature, simply
enter the program for Monday as described in PROGRAM-
MING YOUR THERMOSTAT, and then press RUN PRGM.