There are five main components that are responsible for all the heavy lifting done in a car’s AC system. Let’s take a look at these crucial parts in detail.
1. Compressor
This is, without a doubt, the most important component of a car’s AC system. The compressor’s main functions include the following:
- Pressurizing refrigerant to cool the air.
- Moving air to the condenser.
- Monitoring and controlling temperature.
- Sensing temperature changes both inside and outside of the car.
2. Condenser
Typically located in front of the radiator, the car’s AC condenser is given the nickname of the mini-radiator. When the compressor is pressurizing the refrigerant, the condenser works to reduce both the temperature and pressure of the hot gasses coming from the refrigerant.
The compressor is also responsible for moving the cooled liquid refrigerant to the accumulator or the receiver/dryer.
3. Thermal Expansion Valve Or Orifice Tube
Vehicles that feature a thermal expansion valve use a receiver/dryer, while a vehicle that has an orifice tube will use an accumulator. Nonetheless, the thermal expansion valve or orifice tube should be located between the condenser and evaporator.
Together, they are responsible for monitoring the amount of pressure and temperature of the AC system. The exact amount of needed refrigerant will be calculated in order to safely enter the evaporator.
4. Accumulator
Your model of vehicle ultimately determines whether you have an accumulator or receiver/dryer. A receiver/dryer will be featured in vehicles that have a thermal expansion valve. An accumulator is used in vehicles that have an orifice tube.
The receiver/dryer is used to separate gas from liquid. The compressor can be destroyed if any liquid enters. This is because the compressor is not designed for liquids; just gasses. This component will also take out moisture utilizing a desiccant. These can be compared to small, bead-filled packets that you may find in electronics packaging.
Lastly, there are also filters that work to protect the AC system from contaminants. The accumulator is present to monitor and control the amount of refrigerant that enters the evaporator. The accumulator also stores any excess refrigerant and filters debris, while removing moisture, at the same time.
5. Evaporator
This is another important component of a car AC system. You will be able to find this part behind the dashboard. It’s main responsibility is to cool the air with the refrigerant before it is blown into the cabin of the car.
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Get your road trip inspection and preparation service done at Bridwell Automotive Center, located at 7171 E Lincoln Dr. Scottsdale, Arizona 85253 or call (480) 948-4781 for more information.
