from heating to cooling as needed. To set your thermostat to this operating mode, press SYSTEM button until AUTO is displayed on the screen.
Pressing the 
and 
buttons at the same time will change the setpoint temperature displayed to the setpoint of the other mode. This will allow you to modify both the HEAT and COOL setpoints to accommodate a HOLD condition while in Automatic Changeover mode.
Air Filter
This feature allows the thermostat to display the words CHNG FLTR (change filter) after a set time of fan operation. This is a reminder to
change or clean your air filter. The factory set interval for CHNG FLTR to be displayed is 200 hours of fan operation. This can be set anywhere from 0 to 1950 hours in 25 hour increments. A selection of 00 will cancel this feature.
When CHNG FLTR is displayed, you can clear it by pressing the FILTER button. This resets the timer and starts counting the hours until the next filter change.
The following steps will allow you to change the number of hours for filter
1.If you see CHNG FLTR on the display, press the FILTER button once to reset the timer. If you do not see CHNG FLTR proceed to step 2.
When the FILTER button is pressed
once, the display will show the number of hours remaining before CHNG FLTR indicator will display.
2.Press the FILTER button. The display will show SET FILTER TIME and will show the number of hours to filter change.
3.Press TIME FWD or TIME
BACK to change the time to your
requirements.
4.Press PROGRAM RUN to return to the normal operating mode.
NOTE: If unsure what interval to use between filter changes or cleaning, contact the manufacturer of your heating/cooling equipment.
Temporary Program Override.
Any time your program is running and you would like to override it for
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