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What is Central Air Conditioning System

What is central air conditioning system“? You may be asking this question if you are in the market for a new air conditioner. Many people don’t know what this type of system is, but it’s essential to understand it and what it does.

We will discuss here the basics of a central air conditioning system. We will explain what it is, what it does, and how it works. After reading this post, you’ll have a better understanding of these systems and be able to decide if one would be suitable for your home!

Central Air Conditioner: Definition

A central air conditioner is a system that cools and dehumidifies the air in your home. It replaces heated air with cool air that has passed through cold coils before being pushed into your living areas. Installers usually install it in the attic or garage, and it consists of two different types: split systems and packaged systems.

Split systems have an outdoor unit that contains the compressor and condenser and an indoor unit that includes the evaporator. A set of refrigerant lines connects the two systems. Packaged systems have all their components in one unit, usually located on the roof or outside the house on a concrete pad.

Parts of a Central AC System

The outdoor unit

The central AC system has an outdoor unit that contains the compressor, condenser coil, fan, and electrical components. The outdoor unit is in the attic or garage.

Evaporator coil

You can find the evaporator coil in the indoor unit. It is a set of coils that remove heat from the air as it passes through them. The cooled air is then pushed into your living areas.

Refrigerant lines

The refrigerant lines are what connect the outdoor and indoor units. They carry the refrigerant between the two systems.


The ducts carry the cooled air from the indoor unit to your living areas. It acts as an air tunnel connecting your home’s numerous rooms. Then, the cool air travels throughout the home through supply ducts from the air handler. Warm air goes back to the air handler through return ducts, where it is filtered and cooled. Ducts distribute conditioned air evenly and silently throughout the home when correctly sized.


The thermostat is what controls the central AC system. It turns the system on and off and regulates the temperature. You can place it in the living room or another main area.

How Does A Central Air Conditioner Work?

A central air conditioner works by drawing heat out of your home and pushing it outside. The refrigerant in the system absorbs the heat and transfers it to the outdoor unit. The compressor then pumps the refrigerant through the system, and the evaporator coils remove the heat from your home. The cooled air is then pushed back into your living areas.

Benefits of Central Air Conditioning System

A central air conditioning system has many benefits. Some of them include:

Provides cleaner air

Through the return air ducts, your central AC system circulates air by sucking it out of the rooms in your home. The air filter pulls in the air during this operation. The filter’s density determines how much dust, lint, pet dander, and allergies you may remove from the air.

Even temperature distribution

Another advantage of a central AC system is that it can evenly distribute cool air throughout your home. It is especially beneficial if you have a large home or one with many rooms.

Lower energy bills

A central AC system is also more energy-efficient than other cooling methods, such as window units. It means that you’ll save money on your energy bills each month.

Better humidity control

A central air system decreases humidity levels around your house, a huge advantage. A standalone unit will not be able to keep up with the humidity and a central air system.

Dehumidifying the air improves indoor air quality and helps to create a healthier atmosphere by lowering pollutants in the air and preventing mould formation. Depending on your environment, a whole-home dehumidifier may be required to complement your central AC system for ideal indoor air quality.


A central air conditioning system is a great way to keep your home cool and comfortable. It has many benefits, such as providing cleaner air, evenly distributing cool air, and better humidity control. If you’re looking for a more efficient cooling system for your home, a central AC system is the way to go.

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