INSTALLATION (cont.)
| Use with copper conductors only. Use wire con- | |
NOTE | ||
nectors approved for 12 AWG only. | ||
|
Make the appropriate connections to the thermostat as per diagram below. The wires are
4 Wire Installation
2 Wire Installation
CAUTION
Keep the air vents of the thermostat clean and unobstruct- ed at all times. Failure to do so can cause harm to your thermostat.
Align and affix the base to the electrical junction box or the optional adapter plate using two
Place the thermostat cover back onto the base hinge and close cover. Install screw to secure cover.
OPERATION
Slide thermostat switch to 
position.The thermostat normally displays the actual ambient temperature.
The thermostat displays the percentage of power usage (in "PC" mode only) required to maintain the desired temperature. For example:
100% power usage
70% power usage
30% power usage
To view the setpoint temperature, press the 
or 
button once. The 
icon appears and the thermostat displays the setpoint temperature. To change the setpoint, press the 
or 
button to raise or lower the temperature until the desired setpoint is reached.
To turn the backlight on, press the 
button, or the 
or 
button once.
To change the thermostat installer configuration, press and hold the 
button for 5 seconds. The features and (defaults) are selected by pressing the 
button once to scan the installer configuration selec- tions. The defaults are changed with the 
or 
button. (Please refer to the following table for the selections of your choice.)
The Emerson logo is a trademark and a service mark of Emerson Electric Co.
| Default | Options |
|
|
|
Backlight | LO (On) | LF (Off) |
|
|
|
Display Reading Adjustment* | H0.0 | L3.0 to H3.0 |
|
|
|
Proportional Control** | PO (On) | PF (Off) |
|
|
|
Anticipation*** | AS | |
|
|
|
Temperature Scale | SC (Celsius) | SF (Fahrenheit) |
|
|
|
*Adjusts room temperature display higher or lower to agree with a previous thermostat.
**Proportional Control allows the thermostat to modulate depending on power usage.
***Adjusts your thermostat anticipation based on the room and base- board heater size, e.g., in a room with a 3500 W baseboard heater, set your thermostat anticipation to AL.
The thermostat will save the setpoint temperature and installer configu- ration selections permanently, even after power outages.
To reset the thermostat, press the 
, 
, and 
buttons simultaneously.
To suspend the thermostat operation, slide the thermostat switch to
the 
position. In this position, the thermostat still has power but the display is turned off.
Heating Element Thermal Protection
Most heating elements have a protection device that activates when overheated. It is possible that if the device is worn out, it becomes more sensitive. This device has a chance of being activated when the heating element is on for a long period of time. When the thermal protection is activated, the electrical power ceases to supply the thermostat, and its display is turned off for a few minutes. The same phenomenon exists with a mechanical thermostat but nothing could indicate it. A thermal protection that opens too often can cause the thermostat to poorly regulate temperature and should be replaced by an electrician or the heating element manufacturer.
