compressor failure by “locking out” the compressor. This ensures that the compressor will stay off for at least five minutes on each cycle. When the thermostat is in compressor
Programmable Fan Control.
This feature allows you to have your fan operate continuously through one or more programmed time periods.
This is useful if you want to have constant air circulation during a specific time period. If you do not use this feature, the fan will cycle normally with the heating and cooling system.
To program the fan, follow the steps in the PROGRAMMING section. In each time period, you can press the FAN key to select a continuous fan or a normally cycling fan. The display will show PRG FAN ON when continuous
fan is selected. This means at the time you set the period to start, the fan will come on and run until the next program time period
Example: Your thermostat is pro- grammed with the original factory settings for the Monday OCCU period in the heating mode.
Pressing PROGRAM VIEW will display OCCU, 8AM, 70 and PRG FAN ON. Pressing the FAN key will toggle the programmable fan off and a second press would turn it back on. When PRG FAN ON is in the upper right of the display, your thermostat is programmed to adjust the temperature to 70° at 8AM and also bring the fan on to run constantly until the next program time period.
At the next time period you may choose to continue the program fan feature. Change to the next program period and press the FAN key until
PRG FAN ON is on the display. The fan will continue to run through this period as well as the previous one.
If the thermostat is in a period with continuous fan and you want the fan to cycle, press the FAN key. PRG FAN ON on the display will turn off.
Air Filter Change-Out Indicator.
This feature allows the thermostat to display 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 key. This resets the timer and starts counting the hours until the next filter change.
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