C. Heat Pump Configuration (Steps 5 and 6)
To set the thermostat for heat pump operation, Advanced Setup
Step 5 must be configured to ON. Use the UP and DOWN
ARROW buttons to configure the step. The default is OFF.
Press the Mode button to continue to Step 6. Step 6 is used to
set the reversing valve polarity for the heat pump. The vari-
able can be set to either ‘‘B’’or ‘‘O.’’ Set the reversing valve
polarity to the correct value depending on the application. The
default is ‘‘O.’’
NOTE:
Step 6 will appear only if Step 5 is set to ON. Step 7
will appear only if Step 5 is set to OFF.
D. Electric Heat Configuration (Step 7)
Step 7 is used to configure the thermostat for electric heat.
The variable can be configured ON or OFF. The default is
OFF.
NOTE:
Step 7 will appear only if Step 5 is set to OFF.
E. Deadband (Step 8)
The deadband is the difference in temperature above the cool-
ing set point or below the heating set point that the thermo-
stat will wait before turning on the first stage of heating or
cooling. For example, if the cooling set point is 82 F (28 C)
and the deadband is 2 degrees, the first stage of cooling will
not be energized until the temperature reaches 84 F (30 C).
The range of values is 1 to 6 degrees. The default is
2 degrees.
F. Set Point Minimum Difference (Step 9)
The minimum difference between heating and cooling set points
can be user-configured. The range is from 0 to 6 degrees. The
default is 2 degrees. The minimum difference is enforced dur-
ing Autochangeover and Program On operation.
G. Cycles Per Hour Limit (Step 10)
The number of times that heating or cooling can be ener-
gized per hour can be configured. Set the variable to ‘‘d’’ for
no limit. Set the variable to ‘‘d1’’ to disable the 5-minute com-
pressor lockout. The variable can also be set from 2 to 6 cycles
per hour. The default is 6 cycles per hour.
CAUTION:
Damage to compressor could result if
5-minute compressor lockout is disabled or compressor
is allowed unlimited cycles. Do not set thermostat Ad-
vanced Setup Step 10 to ‘‘d’’ or ‘‘d1’’ unless specifically
recommended for the application.
H. Backlight Display (Step 11)
The display backlight can be set to ON (always on) or OFF
(turn off 8 seconds after usage). The default is ON.
I. Fahrenheit/Celsius Operation (Step 12)
The thermostat can be set to operate in Fahrenheit or Cel-
sius degrees. Set the variable to ‘‘F’’ for Fahrenheit opera-
tion. Set the variable to ‘‘C’’ for Celsius operation. The default
is ‘‘F.’’
VI. INSTALL ACCESSORIES
The Add-A-Wire™ accessory can be used with this thermostat.
Refer to the Add-A-Wire accessory installation instructions
for more information.
VII. PROGRAM THERMOSTAT SCHEDULES
Before programming the thermostat, plan the thermostat daily
schedule. The schedule is divided into 3 different day sched-
ules: Monday through Friday, Saturday, and Sunday. The sched-
ules for Monday, Tuesday, Wednesday, Thursday, and Friday
are the same. Each day has from 2 to 4 time periods (Occu-
pied 1, Occupied 2, Occupied 3, Unoccupied) depending on
the configuration of the thermostat. Each occupied time pe-
riod has a start time, stop time, heating set point, and cool-
ing set point. The unoccupied time period has a heating set
point and a cooling set point. The unoccupied time period is
active when ever an occupied time period is not active. Fill in
Table 3 as an aid to programming the daily schedules.
NOTE:
The Occupied 1 and Unoccupied time period tempera-
ture set points are the same for each day.
A. Programming Mode
To program the daily schedules, perform the following
procedure:
1. Enter programming mode by pressing the and holding
the Mode and UP ARROW buttons. The Occupied 1 an-
nunciator will appear on the thermostat display. Use
the UP ARROW and DOWN ARROW buttons to set the
maximum number of Occupied periods for each day. The
thermostat can be set to 1, 2, or 3. After the number of
Occupied periods has been selected, press the Mode but-
ton. See Fig. 8.
2. The cooling set point for Occupied 1 will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the cooling set point until the desired
temperature is shown. The range of acceptable values
is 35 to 99 F (1 to 37 C). Press the Mode button to con-
tinue. See Fig. 8.
3. The heating set point for Occupied 1 will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the heating set point until the desired
temperature is shown. The range of acceptable values
is 35 to 99 F (1 to 37 C). Press the Mode button to con-
tinue. See Fig. 8.
4. The cooling set point for Unoccupied will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the cooling set point until the desired
temperature is shown. The range of acceptable values
is 35 to 99 F (1 to 37 C) or ‘‘OF’’ (no unoccupied cool-
ing). To configure to ‘‘OF,’’ press UP ARROW after reach-
ing 99. Press the Mode button to continue.
5. The heating set point for Unoccupied will be dis-
played. Use the UP ARROW and DOWN ARROW but-
tons to raise or lower the heating set point until the
desired temperature is shown. The range of acceptable
values is 35 to 99 F (1 to 37 C) or ‘‘OF’’ (no unoccupied
heating). To configure to ‘‘OF,’’ press DOWN ARROW
after reaching 35. Press the Mode button to continue.
Fig. 8 — Setting Occupied 1 Set Points
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