man relaxing in air conditioning

How Does an Air Conditioner Work?

The temperatures are reaching record highs throughout the states and most homes are running some type of air conditioner to beat the seasonal heat. Though we are all thankful that your air conditioner runs, the experts at Custom Air Systems Inc in Indian River County would like to teach you how it works.

The Basics

There’s a lot of science involved in keeping your house cool. Your air conditioner runs in a comparable way to your refrigerator, but your AC has a more difficult responsibility to handle. Both your fridge and AC cool with a reoccurring loop of refrigerant, in your air conditioner this refrigerant loops from inside to outside your home. This refrigerant quickly changes from a liquid to gas and back to a liquid again. It enters your home as a sub-cooled liquid and as it evaporates it absorbs heat from your indoor air and expands back into vapor. This vapor then moves back to your outdoor unit where the heat is released and is then condensed back into a sub-cooled liquid.

Four Components

There are 4 core components to your air conditioner unit: a compressor, an evaporator coil, the condensing coil and an expansion valve.

The evaporator coil is the location your refrigerant evaporates from a sub-cooled liquid into a super-heated vapor. This component can be located inside your home, in your garage or sometimes in your attic. Warm air transports throughout the cold evaporator coil and the heat is taken from the air. This cooled air is then released throughout your home.

Your compressor is located in your outdoor condensing unit. The super-heated vapor from your evaporator coil goes into the compressor which surges the pressure of the vapor until it is converted into hot, high pressure vapor. The hot vapor then goes back into the condenser coil where less hot outdoor air flows across the coil, heat is released outdoors and the refrigerant is converted back into a sub-cooled liquid. This sub-cooled liquid is then returned to the indoor evaporator coil and through an expansion valve or metering device. The process is then repeated.

That completes your physics lesson of the day…your air conditioner runs on an endless loop of science. We understand that it’s not as top-priority to you how it works, but that it’s working. If you’d like to chat about staying cool and comfortable in Indian River County give us a call at 772-571-1080 or set up an appointment using our online scheduler. With the help of our team and science we’re going to make it through this sweltering summer.