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INSTALLER/CONFIGURATION MENU
21 MENU Change Filter (OFF) On Selects Filter Change-out Indicator On or OFF.
MENU Change Filter (200 h) 25-1975 h Change Filter time in 25 hour increments. This
menu only appears if On is selected in above.
22 MENU (OFF)
Change UV Lamp
On Selects UV Lamp
Timer: On/OFF
MENU (350)
Change UV Lamp
25-1975 Selects number of Days between changing UV
Lamp
23 MENU Cool On (o) Heat On (b) Selects operation of the reversing valve terminal
(O/B) output as an O or B terminal
24 MENU RUN SCHED Returns to Normal Operation
1) GAS or Electric (ELE) fan operation. If the heating system
requires the thermostat to energize the fan, select ELE.
Select GAS if the heating system energizes the fan on a
call for heat.
2) Select Cool Savings™ – Cool Savings allows you to
select a temperature offset (from 1-6 degrees). When
the compressor runs for long periods, the thermostat will
internally slowly/gradually adjust the room temperature
display lower, subtracting a maximum of the number of
degrees you select.
This energy saving feature is based on the principal that
long compressor run times lower indoor humidity and
make slightly higher temperature feel comfortable. Cool
Savings operates only when the compressor runs 20
minutes or longer, normally on the hottest summer days.
When Cool Savings is operating the thermostat will fl ash
"Cool Savings" to indicate it is slowly adjusting the dis-
play temperature lower.
To turn this feature on in the Cool mode press Cool
Savings. The display will show “Save” next to the set-
point temperature. When Cool Savings is making adjust-
ments to the room temperature display “Save” will be
fl ashing and the displayed room temperature may vary
within the adjustment range you selected.
If "Save" is not displayed and this feature is OFF, no
change will occur when the cooling system is continuously
running during periods of high demand.
3) Energy Management Recovery: (this step is skipped if
confi gured 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: E On is selected and your heating is 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 tempera-
ture.
4 & 5) Cycle Rate Selection – The factory default setting for
Heat and Cool modes is medium cycle (ME). To change
cycle rate, press the
or button.
Cycle rate differentials for different settings are:
MODE Fast Medium Slow
FA ME SL
Heat (SS1, MS2) 0.4°F 0.6°F 1.7°F
Cool (SS1, MS2) 0.9°F 1.2°F 1.7°F
6) Select Compressor Lockout CL OFF or ON – Selecting
CL ON will cause the thermostat to wait 5 minutes be-
tween cooling cycles. This is intended to help protect the
compressor 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 fl ash
the setpoint for up to fi ve minutes.
7) System Mode Confi guration – This thermostat is confi g-
ured for Heat and Cool (SYSTEM switch with Cool Off
Heat) default. It can also be confi gured for Heat and Cool
with Auto changeover (Heat, Auto, Cool, Off), Heat only
with fan (Off Heat), Heat only without fan, Auto only
(Auto Off), and Cool only (Cool Off).
8) 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 turn the
light on momentarily after any button is pressed. When the
"C" terminal is not powered, the light will be on momentarily
after any button is pressed no matter whether the backlight
is selected ON or OFF.
9) 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 dis-
play temperature to match your previous thermostat. The
current or adjusted room temperature will be displayed.
10) Select F° or C° Readout – Changes the display readout
to Celsius or Fahrenheit as required.
11) Select Audio Prompting (Beeper) On or Off – Factory
default setting is on (b, On). If you wish to turn off the
beeper select OFF.
12) Program Options: Selects confi guration for 7 day (7) or
5/1/1 day (3) programming or non-programming (0) mode.
The default setting is 7, indicating 7 day programming.
The programs per week can be changed to 3 or 0 by
pressing the
or buttons. A selection of 0 days for
non-programmable will eliminate the need for EMR, and
that step in the menu will be skipped.
13) Program Steps per day – This control can be confi gured
for 4 or 2 program steps per day. Default is "2 PS" and
can be toggled between 4 PS and 2 PS.
14 & 15) Select Automatic Schedule – 1F97 only, with just
one touch of the Auto Schedule key this feature allows
you to program a desired comfort temperature into all the
program periods along with a 6° set back for night periods
of both Heat and Cool programs. Factory default is "On"
for both. When Heat AS On and Cool AS On are acti-
vated while in Heat or Cool mode, select desired setpoint