7
Understanding Additional Features
•
High Temperature Protection:
While in the
HEAT
position, if the room temperature reaches 93 F (34 C),
the thermostat will automatically shut off. In the unlikely event the room temperature reaches 99 F (37 c), a
mechanical bimetal switch will shut off the thermostat.
•
Low Temperature Protection:
While in the HEAT position, if the room temperature drops below 40 F (4
C), the thermostat will automatically initiate a call for heat.
•
Compressor Protection:
To protect the system compressor(s) from damage, the thermostat features a 5
minute delay. After the cooling system (or heat pump turns off), the thermostat will not allow it to re-start
until the 5 minute delay expires. A blinking snowflake or flame (heat pump) indicates this feature has been
activated. Once the 5 minute delay expires, the snowflake will illuminate continuously and the system will
be able to re-start when called upon.
NOTE:
For the purpose of unit installation, this delay can be overridden by pressing the RESET button.
This will erase any programmed settings.
•
System Reset:
The thermostat can be reset to factory software settings. All user entered settings will be
lost. The reset will also override the 5 minute compressor protection feature. To reset the thermostat, gen-
tly press the reset button on the front panel using a paper clip or similar small pointed object.
•
Low Battery Detection:
Low battery power is displayed by the illumination of a battery icon in the LCD.
The thermostat can operate for a period of 2 months once the warning has been initiated. Two fresh AA
Alkaline batteries should be installed as soon as the warning icon illuminates.
70803-IM 12/18/06 2:10 PM Page 7
