This switch is crucial for proper a c performance.
High pressure switch ac unit.
High pressure refrigeration pressure switches the high pressure switch will kill the compressor circuit if the pressure exceeds the rating on the pressure switch.
One on the low pressure side before the ac compressor and one on the high pressure side.
The a c pressure switch is a type of device called a transducer which changes internal resistance in response to changes in pressure.
When the pressure in your a c rises or lowers too much this switch turns off the compressor to protect it and the rest of the system from damage.
Lefoo lf08ps low high pressure switch 10 40psi wire terminal normal open air water pressure control air conditioner condenser 5 0 out of 5 stars 4 14 88 14.
The a c pressure switch is mounted on both the high and low sides of your a c.
If the incorrect pressure is sensed the switch will open the a c compressor clutch circuit to.
So you do often have two different ac refrigerant pressure switches on your car.
The ratings will vary depending on the type of refrigerant the air conditioner or heat pump uses the system.