White Rodgers 1F80-0261 Emerson Blue 2" Single Stage Thermostat Installation Instruction

6

1.  Move SYSTEM switch to COOL position.

2. Press 

 to adjust thermostat setting below room 

temperature. The blower should come on immediately on 
high speed, followed by cold air circulation. However, if the 
setpoint temperature is fl ashing, the compressor lockout 
feature is operating (see Confi guration menu, item 6).

6)  Select Compressor Lockout CL OFF or ON - Selecting 

CL On will cause the thermostat to wait 5 minutes between 
cooling cycles. This is intended to help protect the 
compressor from short cycling. Some newer compressors 
already have a time delay built in and do not require this 
feature. Your compressor manufacturer can tell you if the 
lockout feature is already present in their system. When the 
thermostat compressor time delay occurs, it will fl ash the 
setpoint for up to fi ve minutes.

7)  Select Backlight Display - The display backlight improves 

display contrast in low lighting conditions. When the “C” 
terminal is connected, selecting backlight CdL On will keep 
the light on continuously. Select backlight OFF will turn the 
light on momentarily when any key is pressed. When the 
“C” terminal is not connected, regardless of the backlight 
selection, the light will be on momentarily when any key is 
pressed.

8)  Select Temperature Display Adjustment 4 LO to 4 HI - 

Allows you to adjust the room temperature display up to 4° 
higher or lower. Your thermostat was accurately calibrated 
at the factory but you have the option to change the display 
temperature to match your previous thermostat. The 
current or adjusted room temperature will be displayed on 
the display.

9)  Select F° or C° Readout - Changes the display readout to 

Celsius or Fahrenheit as required.

10)  Select Filter Replacement Reminder and Set Run Time 

Select the “Change Filter” reminder On or OFF. If selected 
On, press RUN/HOLD to select the time period from 25 to 
1975 hours in 25 hour increments. In a typical application, 
200 hours (default) of run time is approximately 30 days. 
After the selected time of blower operation, the thermostat 
will display “Change Filter” as a reminder to change or 
clean your air fi lter. When “Change Filter” is displayed, 
press the RUN/HOLD button to clear the display and restart 
the time to the next fi lter change. A selection of OFF will 
cancel this feature.

If at any time during testing your system does not operate 
properly, contact a qualifi ed service person.

Turn on power to the system.

If your system does not have a G terminal connection, skip to 
Heating System.

1.  Move fan switch to ON position. The blower should begin to 

operate.

2.  Move fan switch to AUTO position. The blower should stop 

immediately.

1.  Move SYSTEM switch to HEAT position. If the auxiliary 

heating system has a standing pilot, be sure to light it.

2. Press 

 to adjust thermostat setting to 1° above room 

temperature. The system should begin to operate. 

3. Press 

 to adjust temperature setting below room 

temperature. The heating system should stop operating.

• 

HOLD TEMPERATURE — With the SYSTEM switch set 
to HEAT or COOL, momentarily press RUN/HOLD button. 
HOLD will be displayed. Use 

 or 

 to adjust the 

temperature. The thermostat will hold the room temperature 
at the selected setting until you press RUN/HOLD button to 
start program operation again.

• 

TEMPERATURE OVERRIDE (TEMPORARY HOLD)    — 
Press 

 or 

 until the temperature you want is displayed. 

The thermostat will override current programming and 
keep the room temperature at the selected temperature for 
2 hours or until the next program period begins. Then the 
thermostat will automatically revert to the program.

3. Press 

 to adjust temperature setting above room 

temperature. The cooling system should stop operating.