What does the AC compressor valve do?
The function of the valve is to balance the pressure of the fluids moving through the system by controlling the angle of the swash plate. This keeps the evaporator at a constant temperature slightly above freezing to maximize the auto air conditioning system operation.
When to open the compressor pressure relief valve?
Automotive A/C Parts The pressure relief valve is used in the auto air-conditioning compressor to prevent unusual pressure build-up within a system by opening it’s valve when the internal fluid pressure starts to exceed the preset pressure level and close it’s valve when the
How is the pressure relief valve in an air conditioner used?
Automotive A/C Parts. The pressure relief valve is used in the auto air-conditioning compressor to prevent. unusual pressure build-up within a system by opening it’s valve when the internal fluid. pressure starts to exceed the preset pressure level and close it’s valve when the. internal pressure decrease to the preset pressure level.
What happens when a compressor pressure switch fails?
When pressure switch fails, your compressor plunges in more and more air. At that point, your second safety measure, the pressure relief valve kicks in. Before the pressure reaches a dangerous level, your pressure relief valve will blow open and will start venting air into the atmosphere.
How to adjust the pressure on an air compressor?
Air Compressor Pressure Relief Valve Adjustment 1 Disconnect the pressure switch to let air plunge in constantly 2 Loosen the locking nut of the PRV 3 Start rotating the hexagonal cap once the pressure reaches 125 psi 4 See when the pressure releases. 5 Tighten the locking nut at the pressure level you want the PRV to activate 6 Check once more
How to fix a pressure relief valve on an air compressor?
Fill your compressor with some air. Locate the pressure relief valve and its ring. Pull the ring carefully. See if you can detect air venting. Push the end of the pin to shut off the air flow. If air vents out of the valve, then it’s good. If not, then you should take measures.
When does a pressure relief valve come into play?
A pressure relief valve comes into play if the compressor pressure switch stops working. So, what’s its purpose? Just like the name suggests, its purpose is to relief pressure. The pressure switch turns the compressor on and off based on the pressure build up.
When pressure switch fails, your compressor plunges in more and more air. At that point, your second safety measure, the pressure relief valve kicks in. Before the pressure reaches a dangerous level, your pressure relief valve will blow open and will start venting air into the atmosphere.
Air Compressor Pressure Relief Valve Adjustment 1 Disconnect the pressure switch to let air plunge in constantly 2 Loosen the locking nut of the PRV 3 Start rotating the hexagonal cap once the pressure reaches 125 psi 4 See when the pressure releases. 5 Tighten the locking nut at the pressure level you want the PRV to activate 6 Check once more