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How Does Your AC Work?

man working on ac unit

Air conditioning systems help keep your home cool. However, many home and business owners do not understand just how their air conditioning systems work. And that is unfortunate. Knowing how your air conditioning system works can help you know exactly when to call in the repair and replacement professionals. Let’s go over the air conditioning process.

We can break down the air conditioning process into the following cycles of operation:

  • Evaporation
  • Compression
  • Let’s explore each cycle in a little more detail below.


The evaporation cycle in modern air conditioning is where the actual cooling happens. During this cycle, the air conditioning system pulls in the air and passes it through the evaporator coil. The evaporator coil has very cold liquid refrigerant chemicals running through it. When the air passes over the cooled coil, the heat from the air transfers to the refrigerant. This heat transfer process transforms the liquid refrigerant into a gas and cools the air. Once cooled, the system distributes it throughout your building.


The compression cycle in modern air conditioning actually doesn’t involve cooling the air at all. During the compression cycle, your air conditioner takes the gaseous refrigerant from the evaporation cycle, compresses it back into a liquid, and then moves back to the evaporator coil to start the process all over again.

During the compression cycle, your air conditioning system uses both a condenser coil and a compressor. The system runs the gaseous refrigerant through the condensation coil and passes outside air through it. This first stage in the process saps the heat from the refrigerant and transfers it to the outside air. Then, after the condensing coil saps as much heat as possible, the compressor finishes the job and passes the newly liquidized refrigerant back to the evaporator coil to start the process all over again.


Now that you know a little more about your HVAC system and how it functions, let’s talk about our repair services. Here at Ground Zero Plumbing & A/C LLC, we pride ourselves on being the go-to company for all your HVAC repair needs. So, if your system isn’t working like you want, or you’re experiencing a full-blown breakdown, then don’t fret. Just pick up the phone and contact our team of AC repair professionals for assistance today at (480) 568-2800!

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