The Beautiful Science Behind Air Con

Air Con

Every average home in Sydney has one or more AC machines to ensure optimal comfort in the interiors. Whether you have ducted air con Sydney or any other type of system, have you ever wondered how these amazing machines work? While most people take air conditioners for granted, it’s interesting to explore the internal operational mechanism. Regardless of the weather condition outdoors, ACs ensure comfortable temperatures indoors.

In this post, you will get to know the beautiful science that makes your AC fully operational. This way, you will also get to know when your AC starts malfunctioning. Accordingly, you can call in the professionals for air conditioning Sydney repairs.

How do AC machines work?

Well, an average AC machine consists of refrigerant, a special chemical, along with three key parts. These are the compressor, the condenser coil, and the evaporator coil. These components operate in proper synchronization. In the process, they transform gas to liquid state, and then to gaseous form once again. The compressor increases the pressure and temperature of the refrigerant gas when it is dispatched to the condenser coil. Next, it is converted to a liquid state.

After the refrigerant makes its way indoors, it travels through the evaporator coil. Then the liquid evaporates, which eventually cools the indoor coil. Also, the fan keeps blowing the air indoors through the cold evaporator coil. The refrigerant absorbs the heat present indoors. The air keeps circulating throughout the area, as the external compressor receives the evaporated and heated gas. The process continues till the necessary temperature is achieved indoors.

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Different components present in an AC

Now, you know that your AC operates on the coordination of three key components. These components, along with the refrigerant, determine how the functioning would take place. Have a closer look at how these components function.

Evaporator unit

The evaporator unit lies inside your AC machine. It is responsible for drawing warmer air from outside across the evaporator coil. The refrigerant then cools this air. Next, this cool air gets pumped back to the interiors of your home through the ducts. From time to time, you need to hire professionals to clean the evaporator unit. They do the needful to keep away debris and dirt from the ducts.


The compressor present in your AC serves as the pump. It is responsible for decreasing the volume of the gas. It also has an impact on the pressure and temperature during the condensing process.


The condenser unit is present outdoors and is responsible for eliminating heat from the refrigerant. This heat was previously absorbed by the evaporator coil present indoors. The refrigerant, in condensed form, flows to the evaporator from the condenser. Here, it cools the air by absorbing the heat. This generates a comfortable and cool feeling, as your interiors receive the breeze. Since condensers are placed outside the house, generally on concrete pads and roofs, you need to hire professionals to clean the debris and foliage from time to time.

 Apart from these components, the functioning of your AC also depends on the thermostat and ductwork. To keep your AC in proper functional conditions, make sure to follow up the routine maintenance schedule with certified professionals.

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