This is activated by the contactor during heating and cooling
except during defrost and emergency heat operation.
Compressor
This is activated by the contactor for heating and cooling
except during emergency heat. It is protected by an internal
overload.
Defrost Control
This provides time/temperature initiation and termination of
the defrost cycle.
Loss of Charge Protector
If the system loses refrigerant charge, the control will open
to allow the compressor contactor to open.
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