Contactor
Definition
A contactor controls power to your AC unit and normally carries high voltage. It’s usually controlled by lower voltage from your AC control board or thermostat.
Abbreviations
CONT
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Related Terms
Amp Clamp
An amp clamp is an electronic device that has clamps, used to measure amperage.
Expansion Valve
Controls how much refrigerant is allowed to flow into the evaporator coil
R-12
Common type of refrigeration used in older home AC systems
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