Car-Air-Conditioner-Compressor



Automotive Compressor

Car-air-conditioner-compressor – pumps the low-pressure refrigerant from the evaporator, into high-pressure, high –temperature gas refrigerant, and enters the condenser which is located in front of the radiator. The heat is dissipated into the atmosphere and the refrigerant turned into liquid. It enters the receiver/dryer and the moisture, dirt, and iron particles are removed.

It then enters the evaporator, where the heat inside the passenger compartment is removed. The refrigerant turns into gas, and enters the compressor. The cycle repeats again. A sight-glass on top of the receiver/dryer is to allow us to see the refrigerant inside, it should be like water. If you see bubbles,

Clutch

it means the refrigerant is not enough. When the air condition switch is turn to “on”, the compressor clutch engages and run in unison with the engine. A thermostat on the dashboard controls how cold we want. When the set temperature is reached the thermostat cuts off the electrical circuit to the magnetic clutch, and stops the compressor from turning.On top of the compressor you will

Gauge Manifold find two service valves. They are the suction and discharge service valves. When servicing the car-air-conditioner-compressor, a gauge manifold set is hook up with the compressor. The blue hose is connected to the suction service valve, and the red hose is connected to the discharge service valve. The yellow hose is connected to the refrigerant tank. The yellow hose must be purged to

Service Valves avoid atmospheric air entering the system. Run the engine at 600 rpm and slowly open the blue hand valve, watch the pressure rising as the refrigerant enters the system. Close the blue hand valve and let it run for 5 minutes. Continue charging until a pressure of 37 psig is reached on the

Receiver Dryer compound gauge and 206 psig on the pressure gauge. Close blue hand valve. Closed refrigerant valve, and remove gauge manifold and refrigerant tank. Check the sight glass of receiver/dryer, it should be clear like water. The engine and the compressor must be very clean all the time. Check for loose or cracked fan belt, replace if necessary. Schedule a periodic preventive maintenance to your vehicle so that breakdown can be avoided. With some basic tools. you can do the above work yourself and save a lot of money!

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