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How Does Air Conditioning Work?

If you're the curious type, you want to know more than just how to turn on the AC -- you want to know how it works! Below, we've broken it down into fairly simple terms.

How Does Air Conditioning Work?

Let's start with the basics. According to Live Science, "The basic concept is that a chemical called a refrigerant loops from inside the home to outside and back again, absorbing and casting out heat in the process." The refrigerant then cools down and re-enters the home, beginning the cycle over again.

The four major components of an air conditioner are:

  1. Evaporator
  2. Compressor
  3. Condenser
  4. Expansion device
Fans within an air conditioning unit blow warm air over the coil, at which point the refrigerant absorbs the heat. This cools the air down, while turning the refrigerant into a gas.

The gaseous refrigerant then moves into the compressor, where it's further compressed and heated up. That's when the refrigerant makes its way to the condenser, where it's condensed back into a liquid as heat dissipates. Finally, the refrigerant will flow into the evaporator to be turned back into a low-pressure gas.

Rusk Heating & Cooling is centrally located just beneath the Brent Spence Bridge. We are minutes from anywhere in the Greater Cincinnati and Northern Kentucky area. Contact us for 24 hour emergency service:


Greater Cincinnati: 513-771-4040
Indiana: 812-926-3939
Northern Kentucky: (859) 405-0414

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