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Air Conditioning - Automotive

How Car Air Conditioning works :

First lets note that the Air Conditioning system is a sealed unit. This means you do not need to check or add anything unless there is a leak. The A/C System is filled with freon (R134A) in liquid form.

When the Air Conditioner is turned on the freon is allowed to flow as a liquid into the expansion valve witch allows just that. The freon expands into a gas form through the evaporator and the reaction makes it icy cold. A fan motor blows air across the evaporator making cold and into the car through the dash vents.

Next, the freon is sucked into the compressor and compressed into a high pressure - high temperature vapor. The freon is the pushed through the condenser (located in front of the radiator) to allow moving air to cool the freon vapor back into a liquid before it flows back into the receiver dryer/accumulator where any moisture is removed and it waits it turn to flow through the expansion valve once again to start the cycle all over.

AIR CONDITIONING HOME REPAIRS AND TESTS
Its easy to test for correct operation of your Cars Air Conditioning system. All you need is a few minutes and a cooking thermometer.   See how to test your A/C

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