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2
Low Battery Indicator.
Temperature calibration.
Batteries required to maintain clock function.
Compressor short cycling protection available
B and O terminals available.
IMPORTANT SAFETY INFORMATION
Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off
position before installing, removing, cleaning, or servicing this thermostat.
Read all of the information in this manual before installing this thermostat.
Use a professional contractor to install this thermostat.
This is a 24VAC low-voltage thermostat.
DO NOT INSTALL ON VOLTAGES HIGHER THAN 30 VAC.
All wiring must conform to local and national building and electrical codes and ordinances.
Do not short (jumper) across terminals on the gas valve or at the system control to test
installation. This will damage the thermostat and void the warranty.
Do not switch the system to cool if the temperature is below 50ºF (10ºC).
This may damage the air conditioning system.
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