Auto Repair

5 Parts Of A Car AC System

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The five parts listed below are responsible for all the heavy lifting done in a car’s AC system. Of course, the system will also utilize various hoses and refrigerant charging parts, but these five components are the most important parts of the system.

1. Condenser

The car’s AC condenser is typically located in front of the radiator, which gives it the nickname of the mini-radiator. When the compressor is pressurizing the refrigerant, the condenser will work to reduce the temperature and pressure of the hot gasses coming from the refrigerant.

Additionally, the condenser is responsible for moving the cooled liquid refrigerant to the receiver/dryer or accumulator.

2. Compressor

The compressor is the most essential component of a car AC system. The main functions of the compressor include the following:

  • Moving air to the condenser.
  • Pressurizing refrigerant to cool the air.
  • Sensing temperature changes both inside and outside the car.
  • Monitoring and controlling temperature output.

3. Accumulator Or Receiver/Dryer

The model of your vehicle will ultimately determine whether you have an accumulator or receiver/dryer. A receiver/dryer is found in vehicles that feature a thermal expansion valve. An accumulator, meanwhile, is featured in vehicles that have an orifice tube.

Your receiver/dryer is responsible for separating gas from liquid. The compressor can be ruined if any liquid enters. This is because a compressor is not designed for liquids, just gasses. This part will also take out moisture utilizing a desiccant. Desiccants can be compared to small, bead-filled packets one might find in the packing of new electronics.

Finally, there are also filters that work to protect the AC system from contaminants. The accumulator is there to monitor and control the amount of refrigerant that enters the evaporator. It will also store any excess refrigerant and filter debris, while also removing moisture.

4. Thermal Expansion Valve Or Orifice Tube

Cars with a thermal expansion valve will use a receiver/dryer, while a car that has an orifice tube will use an accumulator. Nevertheless, the thermal expansion valve or orifice tube should be found between the evaporator and condenser.

Together, they will monitor the amount of pressure and temperature of the AC system. The exact amount of refrigerant will be calculated to safely enter the evaporator.

5. Evaporator

The evaporator is also an important part of a car’s AC system. You can find this component behind the dashboard. It’s primary responsibility is to cool the air with the refrigerant before it is blown into the cabin of the car.

Heath’s Auto Service In Scottsdale, AZ

At Heath’s Auto Service, we offer a comprehensive range of services and repairs to meet all your automotive needs. From routine maintenance like oil changes and tire rotations to more complex repairs involving brake systems, engine diagnostics, and transmission issues, our highly skilled technicians are equipped with the latest tools and technology to ensure your vehicle is serviced to the highest standards. Contact our team today!

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