How Does an Air Conditioner Work?07/18/2016 The temperatures are hitting record highs throughout the U.S. and many homes are utilizing some variety of air conditioner to beat the summer heat. Although we are all grateful that your air conditioner runs, the experts at Banister's Heating & Air Conditioning Services in Carlsbad would like to teach you how it works. The Basics There’s a lot of science regarding keeping your living space cool. Your air conditioner functions in a comparable way to your refrigerator, but your AC has a more difficult responsibility to manage. 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 easily 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 travels 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 elements to your air conditioner unit: a compressor, an evaporator coil, the condensing coil and an expansion valve. The evaporator coil is the place your refrigerant evaporates from a sub-cooled liquid into a super-heated vapor. This component can be established inside your home, in your garage or possibly in your attic. Warm air transports across the cold evaporator coil and the heat is taken from the air. This cooled air is then transferred 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 never-ending loop of science. We realize that it’s not as important to you how it works, but that it’s working. If you’d like to discuss staying cool and comfortable in Carlsbad give us a call at 575-887-7777 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.