The Five Major Parts of Your Car’s A/C System

The Five Major Parts of Your Car’s A/C System

| By: Christian Brothers Automotive

The experts at Christian Brothers Automotive Buda are going to talk about the five parts that make up your car’s A/C system today.

It’s true you A/C also utilizes of many other hoses and refrigerant charging ports, but the five parts mentioned here do the heavy lifting. If you think your car’s air conditioning isn’t up to scratch, come visit your local auto repair experts at Christian Brothers Automotive in Buda, Texas, near Kyle. We’ll get the cold air blowing and show you the nice difference in auto repair.

1. Compressor

The most essential component of any air conditioning system is the compressor. Your nice, cool air depends on it! The four main functions that your vehicle’s compressor carries out include:

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

2. Condenser

Your vehicle’s A/C condenser is usually located in the front of the radiator, giving it the nickname of the mini-radiator. When the compressor is pressurizing the refrigerant, the condenser works to reduce the temperature and pressure of hot gasses coming from the refrigerant. In addition, the condenser is also responsible for moving the cooled liquid refrigerant to the receiver/dryer or accumulator.

3. Receiver/Dryer or Accumulator

Whether or not you have receiver/dryer or accumulator depends on the model of your vehicle. A receiver/dryer is present in vehicles that have a thermal expansion valve. An accumulator, on the other hand, is found in vehicles that have an orifice tube.

The receiver/dryer works to separate gas from liquid. The compressor can be ruined if any liquid gets in. That’s because a compressor isn’t designed for liquids, just gasses. This part also takes out moisture using a desiccant. Desiccants can be compared to the small, bead-filled packet you find in packaging for new electronics. Finally, there are also filters that protect the A/C system from contaminants.

The accumulator is responsible for monitoring and controlling the amount of refrigerant that goes into the evaporator. It also stores excess refrigerant, filters debris and removes moisture.

4. Thermal Expansion Valve or Orifice Tube

As stated previously, cars with a thermal expansion valve utilize a receiver/dryer while a vehicle with an orifice tube utilizes an accumulator. Regardless, the Thermal Expansion Valve or Orifice Tube should be located between the condenser and evaporator. Together, they monitor the amount of pressure and temperature of your A/C system and calculate the exact amount of refrigerant that can safely go into the evaporator.

5. Evaporator

Another part that’s crucial if you want cold, refreshing air hitting your face is the evaporator. You’ll find this component right behind the dashboard. It’s in charge of cooling the air with the refrigerant before it is blown into the cabin of your vehicle.

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