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Check Thermostat Operation
NOTE
To prevent static discharge problems, touch side of
thermostat to release static build-up before touching
any keys.
If at any time during testing your system does not operate
properly, contact a qualified service person.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Turn on power to system.
2. Press FAN key to ON position. The blower should begin
to operate.
3. Press FAN key to AUTO position. The blower should
stop immediately.
CAUTION
!
Do not allow the compressor to run unless the compres-
sor oil heaters have been operational for 6 hours and the
system has not been operational for at least 5 minutes.
Heating
1. Press SYSTEM key to select HEAT. If the auxiliary heating
system has a standing pilot, be sure to light it.
2. Press
to adjust thermostat setting to 1° above the
room temperature. The heat pump system should begin
to operate. The display should show "System On".
However, if the system configuration is set to HP1 or
HP2 and setpoint temperature display is flashing, the
5 minute compressor lockout feature is operating (see
Configuration menu, item 11).
3. Adjust temperature setting to 3° above room temperature.
If your system configuration is set at MS2, HP1 or HP2,
the auxiliary heat system should begin to operate and the
display will show "System On +2".
4. Press
to adjust the thermostat below room
temperature. The heating system should stop operating.
Emergency Mode
Applies only to Heat Pump Systems
Emergency Heat (System EM Position) bypasses the Heat
Pump to use the heat source wired to terminal W/E, W2
on the thermostat. EM is typically used when compressor
operation is not desired, or you prefer back-up heat only.
1. Press SYSTEM key to select EM. "EM Heat Mode" will
flash on the display.
2. Press
to adjust thermostat setting above room
temperature. The Emergency heating system will begin to
operate. The display will show "System On" flashing "EM
Heat Mode" and "Heat" to indicate that the Emergency
system is operating.
3. Adjust temperature setting to 3° above room temperature.
Any additional stages of auxiliary heat should begin to
operate and the display will show "System On +2".
4. Press
to adjust the thermostat below room
temperature. The heating system should stop operating.
OPERATING YOUR THERMOSTAT
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
Cooling
1. Press SYSTEM to select "Cool".
2. Press
to adjust the thermostat setting below room
temperature. The blower should come on immediately on
high speed, followed by cold air circulation. The display
should show "System On". If the setpoint temperature
display is flashing, the compressor lockout feature is
operating (see Configuration menu, item 11).
3. Adjust temperature setting to 3° below room temperature.
The second stage cooling should begin to operate and the
display should show "System On +2".
4. Press
to adjust the temperature setting above room
temperature. The cooling system should stop operating.
Choose the Fan Setting (Auto or On or Prog)
There are two fan features on the 1F95-1277
1. Fan Auto/On - Traditional Fan Settings
Press Fan to select Auto or On. The most commonly
used setting is Auto. Fan Auto runs the fan only when the
heating or cooling system is operating. Selecting Fan On
runs the fan continously for increased air circulation or to
allow additional air cleaning if the system is equipped with
an Electronic Air Cleaner.
2. FAN Prog - Comfort Circulating fan Feature
Pressing Fan until FAN Prog appears activates the
Comfort Circulating Fan Option. This causes the
thermostats to cycle the fan on for 10 minutes and off for
20 minutes if the thermostat has not called for heat or
cool during the past 60 minutes. This assures moderate
air ci rculation even when the heating and cooling
equipment is not cycling.
Choose the System Setting
(Cool, Off, Heat, Em, Auto)
Press the SYSTEM key to select:
Cool: Thermostat controls only the cooling system.
Off: Heating and Cooling systems are off.
Heat: Thermostat controls only the heating system.
Em: Setting is available only when the thermostat is
configured in HP1 or HP2 mode.
Auto: Auto Changeover is used in areas where both heating
and cooling may be required on the same day. AUTO allows
the thermostat to automatically select heating or cooling
depending on the indoor temperature and the selected heat
and cool temperatures. When using AUTO, be sure to set the
Cooling temperatures more than 1° Fahrenheit higher than
the heating temperature.
Manual Operation for
Non-Programmable Mode
Press the SYSTEM key to select "Heat" or "Cool" and use
the keys to adjust the temperature to your desired setting.
After selecting your desired settings you can also press
the SYSTEM key to select AUTO to allow the thermostat to
automatically change between "Heat" and "Cool".
9
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