Menu | Press | Displayed | Press | or | Comments |
Reference | Key | (Factory | to select from |
| |
Number |
| Default) | listed options |
| |
6 | and | L |
| OFF | Select Display Light On or OFF |
|
| (On) |
|
|
|
7 | and | Temp | 4 LO to | Select temperature display adjustment higher or | |
|
| (0 HI) |
| 4 HI | lower |
8 | and | oF |
| oC | Select oF / oC Display (temperature units in Fahren- |
|
|
|
|
| heit or Celsius) |
9 | and | Change Filter |
| On | Select filter replacement indicator OFF or On |
|
| (OFF) |
|
|
|
| and | Change Filter | 25 to 1975 | If Change Filter selected On, selects time interval for | |
|
| (200 h) |
|
| Change Filter Indicator. (in 25 hour increments) |
10 | and |
|
|
| Returns to normal operation |
1)System Configuration - Selects SS (Single Stage) or HP
(Heat Pump) operating mode. Default configuration is SS.
For Heat Pump operation choose HP.
2)Select CS (Cool Savings™) - With Cool Savings™ enabled, the thermostat will make small adjustments to the Setpoint temperature during periods of high demand to reduce cooling system running time and save energy. When the cooling system has been running for more than 20 minutes, humidity in the home will be lower and a higher setpoint temperature will feel comfortable. After 20 minutes of run time, the thermostat will start increasing the setpoint temperature in steps of less than one degree as the system continues to run. These adjustments will eventually cause the system to satisfy the thermostat and turn the system off to reduce the energy consumption. When the Cool Savings feature is active and making adjustments, the display will show “Save”. The amount of the adjustments to the setpoint temperature is dependent on the Cool Savings value that is set, 1 being the least adjustment and 6 being the most adjustment. With this feature set to OFF, no change will occur when the cooling system is continuously running during the periods of high demand. Periods of high demand will normally occur during the late afternoon and early evening on the hottest days of the summer.
3 & 4) Select Cycle Rate Selection - The factory default setting for Single Stage Heat is Medium Cycle (ME). For Single Stage Cool the default setting is fast (FA). To change cycle
rate, press the 
and 
buttons.
The cycle rate differentials for different settings are:
MODE | Fast | Medium | Slow |
| (FA) | (ME) | (SL) |
SS Heat | 0.6°F | 0.8°F | 1.2°F |
SS Cool | 1.2°F | - | 1.7°F |
5)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 flash the setpoint for up to five minutes.
6)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.
7)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.
8)Select F° or C° Readout - Changes the display readout to Celsius or Fahrenheit as required.
9)Select Filter Replacement Reminder and Set Run Time Select the “Change Filter” reminder On or OFF. If selected
On, press 
and 
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 filter. When “Change Filter” is displayed,
press the 
and 
button to clear the display and restart the time to the next filter change. A selection of OFF will cancel this feature.