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INSTALLER/CONFIGURATION MENU
1. This control can be configured for:
MS2 – Multi-Stage System - No Heat Pump (2 heat/2
cool)
HP1 – Heat Pump with one stage of compressor (2
heat/1 cool)
HP2 – Heat Pump with two stage compressor or two
compressor system, Gas or Electric backup; (Dual Fuel
see menu item 27) (4 heat/2 cool)
SS1 – Single Stage System and 3 wire zone systems see
wiring diagrams.
2. 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. Note: Resetting the thermostat
switches the option to GAS.
3. O/B Terminal selection – Selects the operation of the
reversing valve (when item 1 is set to HP1 or HP2 only).
When set to "O" the changeover valve will be energized
in COOL to accommodate the majority of heat applica-
tions. If the heat pump requires the changeover valve to
energize in HEAT, select "B".
4. Programs per week – This control can be configured for
7 independent day or 5/1/1 day programming or nonpro-
grammable modes. Default is 7-day mode. The display
indicates "7 Days" as default. Other options "5 Days" or
"0 Days" can be selected. If "0 Days" is selected for non-
programmable mode, the step for EMR will be skipped, as
this feature will not be available in this mode.
5. System Switch Configuration (MS2/SS1) – This ther-
mostat is configured for Heat and Cool with Auto change-
over default (Cool-Off-Heat-Auto). It can be configured as
Heat & Cool (Cool-Off-Heat), or Heat Only (Off-Heat), or
Cool Only (Cool-Off).
When the control is in heat pump configuration (HP1/
HP2), the system switch configuration will have an
additional mode available, Em for Emergency Mode.
6. Energy Management Recovery (EMR) – (this step is
skipped if configured as non-programmable). When set
to "On" causes the thermostat to start heating or cooling
early to make the building temperature reach the program
setpoint at the time you specify.
Example: The heating program is 65°F at night and 70°
at 7 AM. If the building temperature is 65°F, the difference
is 5°F. Allowing 5 minutes per °F rise, the thermostat set-
point will change to 70° at 6:35 AM. Cooling allows more
time per °F, because it takes longer to reach temperature.
7, 8 & 9. Cycle Rate Selection – The factory default setting
is fast cycle (FA Cr) in all modes (Heat, Cool, Emer). To
change to slow cycling (SL, Cr), press touch keys
or
toggle between FA & SL. The cycle rates are below:
Mode Fast rate Slow rate
Heat (SS1, MS2) 0.6°F 1.5°F
Cool (SS1, MS2) 1.2°F 1.7°F
Heat Pump (HP1, HP2) 1.2°F 1.7°F
Emer Heat (HP1, HP2) 0.6°F 1.7°F
10. Select Compressor Lockout (CL) – Selecting (CL On)
will cause the thermostat to wait 5 minutes between cool-
ing cycles. This is intended to help protect the compressor
from short cycling. Some of the newer compressors have
a time delay built in and do not require this feature to be
activated in the thermostat. Your compressor manufactur-
er can tell you if this lockout feature is already present in
their system. When the thermostat compressor time delay
is activated, it will flash the set point for up to five minutes.
11. Select Continuous Backlight (dL) – In low lighting con-
ditions, display backlight improves the display contrast.
When C terminal is connected, selecting dL On will turn
the backlight on continuously. Selecting dL Off will turn
the backlight on momentarily after any key is pressed.
When C terminal is not powered (battery only), dL On
enables the momentary backlight whenever a key is
pressed.
12. Select Backlight Intensity – This thermostat has the
ability to provide two selectable intensities of the back-
light: HI and LO. You can toggle the selection between HI
and LO.
13. Select Temperature Display Adjustment 5 LO to 5 HI
This allows you to adjust the room temperature display
by -5°F to +5°F in 1° steps. Your thermostat was accu-
rately calibrated at the factory, however you have the
option to change the display temperature value to match
the previous thermostat, if you so prefer.
CONFIGURATION MENU
Screen
Reference
Number
SS1
MS2
HP1
HP2
Press
key
Displayed
Factory
(Default)
Press
or
to select from
listed options
Comments
34
(60) Cd 0-99 Selects compressor off delay in seconds, dF selected On
35
(80) AO -5 - 79 Selects Auxiliary Heat cut out temperature. This item appears if HP1
or HP2 is selected and outdoor sensor is installed and enabled.
36
(0) PP 1, 2, 3 Selects Pre-occupancy purge. Not available if 4 is 0
37
(OFF) EC On Selects Economizer or Damper Operation (default). Not available if 4
is 0
41
(OFF) Change
UV Lamp
On Selects Change UV Lamp feature.
42
350 Days 25-1975 Change UV Lamp duration days.
43
OFF
Change Filter
On Selects Change Filter feature.
44
200 Hrs 25-1975 Change Filter duration hours.
6