• 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/flame indicates this feature has been activated. Once the 5 minute delay
expires, the snowflake/flame 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 displayed. 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: Battery voltage is sampled every 4 seconds.
When the battery voltage drops to a certain level, the low battery warning
will appear.
FEATURES
Image shows the filter counter at 208
hours. The filter icon illuminates in the
primary display at 500 hours.
Image shows battery icon appears
in lower right corner of display.
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