PROGRAMMING
Wired Remote Temperature Sensing
One remote temperature sensor can be installed indoor or outdoor and connected to the thermostat by a maximum cable length of 100 meters (300 ft). Three terminals, +, S & - are provided on the terminal block to connect to the White- Rodgers standard wired remote sensor. This sensor will be read by the thermostat only when 24VAC is present.
When used as indoor sensor, the readings can be weighted with the local sensor for specific program periods. User can enable or disable the remote sensor in the installer configu- ration mode and also the outdoor temperature can be selected to show on the display.
Once in the installer configuration mode, momentarily press the
or
touch key until display indicates Remote (at the top left of the LCD) and OFF (default – in clock digits).
Pressing
or
touch key will toggle the operation and display from Remote OFF to Remote On.
When Remote On is selected, press
key for the display to indicate Remote In (for indoor remote).
The
or
keys will toggle the operation and display from Remote In to Outdoor Remote.
When any remote is selected the temperature will display in the clock digits for one second alternating with the current time for three seconds when in Run Schedule mode. Outdoor Remote will indicate at the top left of display for outdoor remote reading.
Only Remote will show at top left for indoor remote reading. (oF or oC will not indicate with remote temperature readings).
Sensing Range:
Outdoor temperature range is
Indoor temperature range is 32 oF to 99 oF
Weight of Remote Reading:
When in view schedule mode the weight of the indoor remote sensor will be shown in the left actual temperature digits designated as A2 (default for average weight), H4 (high weight) or L1 (low weight). The period (Morning, Day, Evening, Night) will also be shown to the right of the weight value in the actual temperature digits.
When in view schedule mode, press
and
keys at the the same time to sequence the indoor remote temperature sensor weight from A2 to H4 to L1 and back to A2 for each of the program period times for each day. (The H4 weight is twice the weight of A2 and A2 is twice the weight of L1).
When Remote In is selected (with Remote selected to On), press
key for the display to indicate the status of the local sensor LS On (default for thermostat local sensor opera- tional). The
and 
keys will toggle the function and display from LS (shown in actual temperature digits) and On (shown in clock digits) to LS OFF to designate the local sensor is disabled.
The local sensor may be disabled only if the indoor remote sensor is enabled and functional.
If the indoor remote sensor is disabled or not functional, the local sensor will automatically enable and display in the run schedule mode.
The actual temperature displayed in the run mode is the mathematical weighted sum of the two temperature sensors
– local and indoor remote.
(Outdoor remote sensor is not used for this computation).
If the remote sensor is absent or not enabled then the actual temperature will be as measured by the local sensor.
Dual Fuel Temperature Set Point
The Thermostat can monitor outside temperature through an outdoor remote sensor if installed and switch to gas heat and inhibit the compressor when in heat pump mode and outside temperature is below a user selectable value. This tempera- ture is called the dual fuel temperature set point. This eliminates the need for a fossil fuel kit.
For this feature to be functional the following conditions are to be met:
1.The thermostat must be in heat pump mode;
2.The outdoor temperature sensor must be enabled and operational.
Once in the installer configuration mode, momentarily press 
or
touch screen key until the display indicates dF (for dual fuel) in the actual temperature digits and 5 (default) in clock digits.
Pressing the
or
touch keys will increment the dual fuel temperature setpoint from 5 to 50 (default unit is Fahrenheit). When the dual fuel temperature setpoint is any value above
5oF this feature is enabled. If the actual outdoor temperature is lower than this temperature setpoint the heat pump will be inhibited. If the balance point temperature setpoint is 5oF the feature is disabled.
When the dual fuel feature is enabled, the shut down of the compressor stage(s) are delayed a programmable time with a default of 60 seconds after the auxiliary stage is energized to minimize the time that the system may blow cooler air.
Only when the dual fuel feature is enabled and the
is pressed after the dual fuel feature dF is selected, the display will indicate Cd (for compressor delay) in actual temperature digits and 60 (default) in clock digits.
Pressing the
or
touch keys will increment the compres- sor delay time to 99 seconds or decrement down to 0 second.
If the
or
touch keys are held depressed, the setpoint will increment or decrement one degree at the rate of one degree every one half second for the first three seconds and thereafter at double the speed.
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