To enter the configuration mode:
Press and hold FAN button for approximately 10 sec until room
temperature disappears and display reads "--". You are now in the
configuration mode.
NOTE:
If no button is pressed for 10 sec, thermostat will exit
mode and resume normal operation. To re-enter configuration
mode, FAN button must be pressed and held again.
While in Configuration Mode, these selections are available:
Fahrenheit or Celsius—Selection
Select between Fahrenheit or Celsius operation. Factory default is
Fahrenheit.
TO SELECT:
1. Enter configuration mode.
2. Press CHANGE DAY button to display F or C.
3. Use either up or down button to change between F and C.
G (Fan) ON with any W (Heat)—Selection
Select whether the G (fan) output is to be OFF or ON when a W
(furnace or strip heat) output is ON. Factory default is OFF.
TO SELECT:
1. Enter configuration mode.
2. Press HOLD button to display OF (off) or ON (on).
3. Use either up or down button to change between OF (off) and
ON (on).
High Ambient Electric Heat Lockout—Selection and Adjustment
Present in HP and 2S models only when configured as a heat
pump. Outdoor temperature sensor must be attached. Selection
allows lockout of any W (Electric Heat) when outdoor temperature
is above a selected value. Temperatures of 15 to 55°F (or
equivalent values in °C) can be selected. Feature can be enabled or
disabled. EMERGENCY HEAT mode disables. Factory default is
OFF (disabled).
TO SELECT:
1. Enter configuration mode.
2. Press COPY PREVIOUS DAY button.
3. Use up and down buttons to move between OF (off), 15, 20,
25, 30, 35, 40, 45, 50, or 55.
Clean Filter Timer—Selection and Adjustment
Select hours of blower operation before CLEAN FILTER icon is
displayed. Timer accumulates total blower hours. Selection can
range from 400 to 3600 hours or can be turned off. Factory default
is 2 (800 hours). Recommended 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.
TO SELECT:
1. Enter configuration mode.
2. Press RESET FILTER button to display OF (off) or digits 1
through 9.
3. Use up and down buttons to move between selections. Total
hours equals 400 times the displayed number. OF (off) turns
feature off.
4. During the selection process, the CLEAN FILTER icon will
remain on, even if OF (off) is chosen.
’Anticipator’—Adjustment
This adjustment controls the sensitivity and cycle rate of the
thermostat. Higher numbers decrease the sensitivity and slow the
cycle rate. Lower numbers increase sensitivity and increase cycle
rate. However, a limiting feature will not allow more than 4
equipment cycles per hour, regardless of setting. Values can range
from 1 to 9. Default is 3. This default selection will provide
optimum performance in nearly all installations. Try it first. Do not
change setting unless there is evidence of need to do so.
Unlike conventional anticipators, this setting is not to be deter-
mined by current draw. There is no need to measure, know, or
compensate for current. There is also no ’droop’ with this
thermostat, regardless of ’anticipator’ setting.
This adjustment controls only sensitivity and cycle rate—up to the
maximum of 4 cycles per hour.
TO ADJUST:
1. Enter configuration mode.
2. Press MODE button to display value between 1 and 9. Factory
default is 3.
3. Use up and down buttons to move between values.
Step 5—Hold, Fan, Mode Button Operation
1. Pressing HOLD button disables the time/temperature schedule
and
″
holds
″
the current desired temperature. When active, the
HOLD annunciator is turned on. A second press of the HOLD
button releases the hold feature and turns off the annunciator.
2. Pressing the FAN button alternately selects AUTO or ON fan
operation. Fan annunciator displays the current selection.
3. Pressing the MODE button will select OFF, HEAT, COOL,
and AUTO. Heat pumps also have an EHEAT mode. Mode
annunciator displays the current selection.
4. Operation of other buttons is explained in the Homeowner’s
Guide.
Step 6—Check Thermostat Operation
SELECT HOLD
1. Press HOLD button to select
″
hold
″
feature. This will prevent
the setpoint from changing until the desired time/temperature
schedule is entered.
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 display 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 display reads 10 degrees below room
temperature. Cooling system should begin to operate within 5
minutes.
Step 7—Select Desired Operation
1. Press FAN button to select AUTO or ON position. Fan
annunciator displays current selection.
2. Press MODE button to select OFF, HEAT, COOL, AUTO.
Heat pumps will also have an EHEAT mode. Mode annun-
ciator displays current selection.
3. Press up or down buttons to select desired temperature.
4. If daily cycles are to be programmed now, refer to Homeown-
er’s Guide for programming instructions.
5. If thermostat has not been programmed, press HOLD button to
retain desired temperature setting.
3
