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5. Press MODE button to return to 1-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
2- Zoning ON/OFF—Selection
This selection enables or defeats the 4 cycles per hour limit and the
5 minute timeguard. These timers MUST be enabled for normal
operation and disabled for zoning applications. In zoning applica-
tions, the zone control center performs these timing functions.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 2-.
3. Press MODE button once to display current selection of ON or
OF (OFF). Factory default is OFF.
4. Use up and down buttons to move between ON and OFF.
Select ON for zoning applications ONLY and OFF for all
other applications.
5. Press MODE button to return to 2-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
3- Fahrenheit/Celsius—Selection
This selection operates the thermostat in either Fahrenheit or
Celsius. Factory default is Fahrenheit.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 3-.
3. Press MODE button once to display current selection of F or
C. Factory default is F.
4. Use up and down buttons to move between F and C.
5. Press MODE button to return to 3-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
4- Clean Filter Timer—Selection and Value Adjustment
Select hours of blower operation (heating, cooling, or fan) before
CLEAN FILTER icon is displayed. With OFF selected, icon will
never come on, disabling this feature. Time selection can be from
400 to 3600 hours by selecting numbers 1 through 9. (Time is 400
X number selected.) Factory default is 2 (800 hours). Recom-
mended selections are: disposable filter 400 to 800 hours, media
filter 1200 to 1600 hours, or electronic air cleaner 1600 to 2400
hours of blower operation. With "L" selected, the icon is turned on
by a 24 VAC signal applied to the thermostat "L" terminal. This
allows an external sensor to indicate when the filter is dirty.
TO SELECT or ADJUST:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 4-.
3. Press MODE button once to display current selection of OF, 1,
2, 3, 4, 5, 6, 7, 8, 9, or L. Factory default is 2.
4. Use up and down buttons to move between available choices.
5. Press MODE button to return to 4-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
5- G OFF or ON with W—Selection
This selection determines whether the G (fan) output is to be ON
or OFF when any W (furnace or strip heat) output is ON. Most
furnaces and fan coils require only a W input to turn on both heat
and blower. For these applications, select OFF. Some auxiliary
heaters require a separate G signal to turn on the blower. In this
case, select ON.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 5-.
3. Press MODE button once to display current selection of ON or
OFF. Factory default is OFF.
4. Use up and down buttons to change between ON and OFF.
5. Press MODE button to return to 5-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
6- High-Ambient Auxiliary Heat Lockout—Selection and Value
Adjustment
Present in HP models only. Outdoor temperature sensor must be
attached. This selection allows lockout of any electric heat (W
output) when outdoor temperature is above a selected temperature.
Temperatures of 15˚ to 55˚ F (or equivalent values in C) can be
selected. Feature can be disabled by selecting OFF. Emergency
heat (EHEAT mode) always overrides this feature.
TO SELECT or ADJUST:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 6-.
3. Press MODE button once to display current selection of OF,
15, 20, 25, 30, 35, 40, 45, 50, or 55. Factory default is OFF.
4. Use up and down buttons to move between available choices.
5. Press MODE button to return to 6-. Up and down buttons now
move between option choices 1- through 6-. Or press FAN
button to exit configuration mode.
Thermostat configuration is now completed.
Step 5—Fan, Mode, Reset Filter Button Operation
1. Pressing FAN button will select AUTO or ON fan operation.
Fan annunciator displays current selection.
2. Pressing MODE button will select OFF, HEAT, COOL,
AUTO. Heat pumps will also have an EHEAT mode. Mode
annunciator displays current selection.
3. Pressing RESET FILTER button will reset filter timer. An-
nunciator will display CLEAN FILTER on LCD display after
the selected number of hours of blower operation. This will
remind homeowner to clean or replace filter. When the "L"
terminal controls the CLEAN FILTER icon, the RESET
FILTER button has no effect.
Step 6—Check Thermostat Operation
FAN OPERATION
1. Press FAN button, starting fan operation. Fan annunciator
switches from AUTO to ON.
2. Press FAN button, stopping fan operation. Fan annunciator
switches from ON to AUTO.
HEATING OPERATION
1. Press MODE button until HEAT is displayed under the mode
annunciator.
2. Press up button until LCD readout reads 10 degrees above
room temperature. Heating system should begin to operate
within 5 minutes.
COOLING OPERATION
1. Press MODE button until COOL is displayed under the mode
annunciator.
2. Press down button until LCD readout reads 10 degrees below
room temperature. Cooling system should begin to operate
within 5 minutes.
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