12-10. Freeze protection system
The 110 Indoor or 110 Outdoor freeze protection system is comprised of the ceramic heating blocks.
The ceramic heating blocks will heat up whatever portion of the heat exchanger the blocks are strapped
to.
The two heating blocks focus on protecting the inlet and outlet piping inside the 110 Indoor or 110
Outdoor, as well as the front drum pipe.
Ceramic heating blocks
The blocks will only activate based on what the freeze protection thermostat senses. The thermostat is
located on the fan motor. Electrical power is required for this feature to operate.
The heating blocks will activate if the thermostat senses a surrounding temperature below 36.5°F.
Once they are on, the heating blocks will only deactivate if surrounding temperatures reach above
46.4°F.
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