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INSTALLER/CONFIGURATION MENU
4) Program Options 1F80 only – This control can be configured
for 5/2 day or 5/1/1 day programming or non-programming
mode. The default setting is P2, indicating 5/2 day program-
ming. The programs per week can be toggled to P3 or P0
by pressing the
or keys. A selection of 0 Days for
non-programmable will eliminate the need for EMR, and
that step in the menu will be skipped.
5 & 6)Select Cool Savings™ and value – Selects the Cool
Savings feature On or OFF. If selected On, press MENU to
select the amount of adjustment for the feature in Cool mode
with 1 (1°) being the least amount of adjustment and 6 (6°)
being the most amount of adjustment. Default value is 3
(3°). In normal operation "Saving" will appear under "Fan".
Cool Savings is an optional energy saving feature that can
reduce your cooling costs. It is based on the principal that
lower indoor humidity makes a slightly higher temperature
feel more comfortable. Cool Savings operates during periods
of high demand which normally occur on the hottest summer
days when the cooling system may run for hours to reach
the thermostat setting. Long cooling run times also lower the
indoor humidity. Cool Savings very slowly adjusts the setpoint
temperature to make the setpoint closer to the displayed
temperature, to a maximum number of degrees selected.
Adjusting the setpoint temperature over a long cooling run
time allows the system to reach your set temperature and
turn off. The room temperature will actually be higher than
the thermostat displays, but the reduction in humidity will
allow comfort at the slightly higher temperature. When Cool
Savings is making adjustments, "Save" will show next to the
setpoint temperature and the room temperature may vary
within the adjustment range selected.
If this feature is selected OFF, no change will occur when
the cooling system is continually running during periods of
high demand.
7) Energy Management Recovery: (this step is skipped if
configured to be non-programmable).
Energy Management Recovery (E) On enables the ther-
mostat to start heating or cooling early to make the building
temperature reach the program setpoint at the time you
specify. Heating will start 5 minutes early for every 1° of
temperature required to reach setpoint.
Example: If E On is selected and have your heating pro-
grammed to 65° at night and 70° at 7 AM. If the building
temperature is 65°, the difference between 65° and 70° is
5°. Allowing 5 minutes per degree, the thermostat setpoint
will change to 70° at 6:35 AM. Cooling allows more time per
degree, because it takes longer to reach set temperature.
8, 9 & 10) Cycle Rate Selection – The factory default settings
with SS/HP switch in SS position for Heat is medium
cycle (ME) and Cool is fast cycle (FA). For Heat Pump
(HP), the default setting is fast cycle (FA).
To change cycle rate, press the
or key.
Cycle rate differentials for different settings are:
MODE
Fast Medium Slow
FA ME SL
Heat (SS) 0.4°F 0.6°F 1.7°F
Cool (SS) 1.2°F – 1.7°F
Heat Pump (HP) 1.2°F – 1.7°F
11) Select Compressor Lockout CL OFF or ON – Selecting
CL ON will cause the thermostat to wait 5 minutes between
cooling cycles. This is intended to help protect the compres-
sor from short cycling. Some newer compressors already
have a time delay built in and do not require this feature. Your
compressor manufacturer can tell you if the lockout feature
is already present in their system. When the thermostat
compressor time delay occurs, it will flash the setpoint for
up to five minutes.
12) System Mode Configuration – This thermostat is config-
ured for Heat and Cool with Auto changeover (SYSTEM
switch with Cool Off Heat Auto) default. It can also be con-
figured for Heat and Cool (Cool Off Heat), Heat only with
fan (Off Heat), Heat only without fan, Auto only (Auto Off),
and Cool only (Cool Off).
13) Select Backlight Display – The display backlight improves
display contrast in low lighting conditions. When the "C"
terminal is powered, selecting backlight CdL ON will keep
the light on continuously. Select backlight OFF will keep the
light on momentarily after any key is pressed. When the "C"
terminal is not powered, the light will be on momentarily
after any key is pressed no matter whether the backlight is
selected ON or OFF.
14) Select Temperature Display Adjustment 4 LO to 4 HI.
Allows you to adjust the room temperature display up to 4°
higher or lower. Your thermostat was accurately calibrated
at the factory, but you have the option to change the display
temperature to match your previous thermostat. The current
or adjusted room temperature will be displayed on the left
side of the display.
15) Select F° or C° Readout – Changes the display readout to
Centigrade or Fahrenheit as required.
16 & 17) Temperature Limit Range Heat or Cool – This se-
lection sets the maximum HEAT (16) or minimum COOL
(17) temperature for the setpoint range. Select the limit
temperature using the
or keys. In the Run mode,
the setpoint temperature will not adjust past the limit tem-
perature selected. When the limit temperature is reached,
trying to raise or lower the setpoint past the limit will cause
“L” to be displayed in the times digits for about 6 seconds.
This feature is not available on earlier models.
18 & 19)Select Filter Replacement Reminder and Set Run
Time. Select the "Change Filter" reminder On or OFF. If
selected On, press MENU to select the time period from 25
to 1975 hours in 25 hours increments. In a typical system,
200 hours (default) of run time is approximately 30 days.
After the selected time of blower operation, the thermostat
will display "Change Filter" as a reminder to change or
clean your air filter. When "Change Filter" is displayed,
press MENU button to clear the display and restart the time
to the next filter change.