call for heat. After two hours the thermostat will quit calling for heat for one minute (this allows some furnaces to reset) and call for heat again. If the temperature still does not rise, it will continue to call for heat. This normally indicates the heating system is not working correctly. You may wish to consult your furnace manufacturer or
service person. The display will indicate CHECK STAT if one of the
following occurs.
•One of the buttons is stuck down or in. Check buttons, make sure nothing is pushing them in.
•The thermostat sensor is not functioning. If using a remote sensor, check connections, wiring and power.
•The humidity sensor is not function- ing. After checking the above, press PROGRAM RUN to reset the display. If this does not clear the display, disconnect power for five
minutes. If these checks fail to solve the problem, the thermostat should be replaced.
Adjustable Humidity Display.
The room humidity display can be adjusted to read higher or lower by following the configuration menu and adjusting the humidity to a higher or lower value (up to 20% RH). The sensed humidity is calibrated at the factory. If you want to adjust it, refer to the CONFIGURATION section (page 4, step 3).
Programmable Automatic Humidity Reduction.
This feature automatically lowers humidity when the outside tempera- ture drops. This is to prevent the interior windows/walls from reaching the dew point where water condenses on surfaces. To achieve automatic
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humidity reduction, the thermostat lowers the humidity when furnace cycles are long. When the furnace runs shorter cycles, it increases humidity.
For suggested settings see table below.
OFF | Factory default — no humidity |
| reduction. |
|
|
LO | Well insulated homes requiring |
| little humidity reduction. |
|
|
HI | Poorly insulated homes or homes |
| with a lot of condensation on |
| windows/walls. |
If your window insulation is poor, you need high humidity reduction. If your window insulation is good, you need low humidity reduction (factory setting). Selection of OFF will cancel this feature. To adjust this feature, refer to the CONFIGURATION section (page 4, step 4).
Features
