10
•
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 turns off, the thermostat will not allow it to re-start until the 5 minute
delay expires. A blinking snowflake 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
depressing the
RESET
button. This will erase any programmed settings.
•
System Reset:
The thermostat can be reset to factory software settings including the program. All user
entered settings will be lost. The reset will also override the 5 minute compressor protection feature. To
reset the thermostat, gently press the reset button on the front panel using a paper clip or similar small
pointed object.
•
Filter Change Reminder:
The thermostat features a reminder for the user to change the heating/cooling
system filter(s). When the system fan is operating, the internal thermostat timer is activated. When the
timer reaches 500 hours, the filter icon will appear in the LCD. To view the time: Depress the
PROGRAM
and
RUN
keys simultaneously. The time in hours will be dis-
played. To reset the filter icon from this position, depress and
hold the PROGRAM key for 3 seconds. The counter will reset to
000 Hr.
•
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 initi-
ated. Two fresh AA Alkaline batteries should be installed as soon
as the warning icon illuminates.
Image shows the filter counter
at 208 hours.
The filter icon illuminates in the
primary display at 500 hours.
The image shows the low
battery warning icon in the
lower right corner
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