With warmer temperature headed our way you want to be sure your ac works. You don’t want to get caught in 90 degree weather without your car’s a/c working properly. We will explain in simple terms how automotive ac works.
The Compressor
It all starts with your ac compressor. The ac compressor compresses cool low pressure from your evaporator. This high pressure gas. This gas is at a high temperature and must be cooled. This is where the condenser comes in.
The Condensor
You can think of the condenser as a type of radiator. If you’ve ever seen a radiator it has tiny fins or tunnels for cool air to flow through. Inside the condenser are pathways for the high pressure gas to flow through. As the gas flows through the condenser cool air lowers the temperature of the gas. The gas is then converted to a liquid.
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The Receiver / Dryer
The high pressure liquid flows through a Receiver or Dryer. This Dryer helps prevent moisture from entering the system and contaminating the refrigerant.
The Expansion Valve
After the Dryer the liquid enters an expansion valve. This valve allows the the high pressure liquid to be converted into a low pressure liquid. This liquid then flows through your evaporator. As the blower motor spins it pushes air through the fins of the evaporator to blow cold air through your vents.
The cycle continues to keep pumping cold air though your system. There are some variations on older vehicles. Although on modern vehicles this is how automotive ac works.
