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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 tempera-
ture. The heating system should begin to operate.
3. Both stages of the heating system should begin to operate
when the setpoint is set greater than 3˚F above ambient.
4. Press
to adjust temperature setting below room tem-
perature. The heating system should stop operating.
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, pull it straight out from the base. To replace the cover, line
up the cover with the base and press until the cover snaps onto
the base.
The Thermostat Buttons and Switches
1 Raises temperature setting.
2 Lowers temperature setting.
3 TIME button.
4 PRGM (program) button.
5 RUN (run program) button.
6 HOLD temperature button.
7 FAN switch (ON, AUTO).
8 SYSTEM switch (COOL, OFF, HEAT).
The Display
9 Indicates day of the week.
10 Flame icon ( ) is displayed when the SYSTEM switch is in
the HEAT position. Snowflake icon ( )is displayed (non-
flashing) when the SYSTEM switch is in the COOL position.
Snowflake is displayed (flashing) if the thermostat is in
lockout mode to prevent the compressor from cycling too
quickly.
11 Displays BATT when the 2 "AA" batteries are low and
should be replaced.
12 Alternately displays current time and temperature.
13 The word HOLD is displayed when the thermostat is in the
HOLD mode. HOLD is displayed flashing when the thermo-
stat is in a temporary HOLD Mode.
14 Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
Cooling System
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50 F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press
to adjust thermostat setting below room tempera-
ture. The blower should come on immediately on high speed,
followed by cold air circulation
3. Both stages of the cooling system should begin to operate
when the setpoint is set greater than 3˚F below ambient.
4. Press
to adjust temperature setting above room tem-
perature. The cooling system should stop operating.
TIME
PRGM
RUN
3
4
5
9
1 + 2
MO TU WE TH FR
AM
FLTR
15
12
14
Figure 5. Thermostat display, buttons, and switches
15 Displays FLTR when the system has run for the pro-
grammed filter time period as a reminder to change or clean
your air filter.
16 One indicates first stage, +2 indicates second stage.
CONFIGURATION MENU
The configuration menu allows you to set certain thermostat
operating characteristics to your system or personal requirements.
Press RUN to make sure the thermostat is in the run program
mode, then press PRGM and RUN at the same time to enter the
configuration menu. The display will show the first item in the
configuration menu.
The configuration menu table summarizes the configuration
options. An explanation of each option follows.
Press HOLD to change to the next menu item or press TIME to
go backwards to the previous item in the menu. To exit the menu
and return to the program operation, press RUN. If no keys are
pressed within fifteen minutes, the thermostat will revert to
normal operation.
4
CAUTION
FAN
SYSTEM
HOLD
ON
AUTO
COOL OFF HEAT
Fltr
8
6
7
16
SA
SU
PM
HOLD
BATT
10
13
12
11
2
9
10
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