What Are The Major Parts Of An Air Conditioner?

Air conditioners are essential to keep homes and offices cool and comfortable, especially during hot summer. But have you ever wondered what goes into making an air conditioner work efficiently? Air conditioner systems are a complex system that comprises various components, and each component plays a significant role in keeping the system running smoothly. As the temperature rises, it is crucial to ensure that your air conditioner is functioning properly.  If you are in need of an AC tune-up in Layton, UT, and surrounding areas, E.R.S. Heating & Cooling is the company to call. With years of experience, we provide high-quality AC services to our customers, ensuring their comfort during hot weather conditions.

The air conditioner systems consist of the following:


The compressor is the most vital component of an air conditioner. It works by compressing the refrigerant gas, which turns it into a high-pressure, high-temperature gas. This gas then moves to the next component in the system, the condenser.


A condenser is a unit that is located outside the home, and its primary function is to release the heat that is absorbed by the refrigerant. It works by passing air over the coils containing the hot refrigerant, allowing the heat to escape. Once the heat is released, the refrigerant turns into a liquid, moving to the next component, the expansion valve.

Expansion Valve

The expansion valve is a small part that controls refrigerant flow from the condenser to the evaporator. The valve reduces the pressure of the refrigerant, allowing it to expand and cool down before it enters the evaporator.


The evaporator is responsible for absorbing the heat from the air inside your home. It’s a coil located inside the air handler, which contains the cold refrigerant liquid. As the air passes over the coil, the refrigerant absorbs the heat from the air and turns back into a gas.


A Refrigerant is a substance that transfers heat from one place to another. It absorbs the hot air inside your home and carries it outside to be released by the condenser. The refrigerant then cycles back to the evaporator, where it continues the cooling process.


The fan circulates the air through the system. It works by blowing air over the evaporator and condenser coils, allowing heat exchange. The fan helps to ensure that cool air is distributed throughout your home evenly. Incase you need AC installation in Ogden, visit the website.


It is the control center of your air conditioning system. It is responsible for monitoring the temperature in your home and regulating the cooling system accordingly. It allows you to set the desired temperature and automatically turn the system on and off as needed to maintain the desired temperature.

In conclusion, an air conditioner is a complex system that requires various components to work together seamlessly to provide efficient cooling. The compressor, condenser, expansion valve, evaporator, refrigerant, fan, and thermostat all play critical roles in the proper functioning of an air conditioning system. It is important to ensure that all these components are functioning correctly.