How Does an Air Conditioner Work?07/18/2016 The temperatures are reaching record highs across the U.S. and many homes are using some kind of air conditioner to combat the summer heat. Though we are all appreciative that your air conditioner is functioning, the professionals at Tri City Fuel & Heating Co., Inc. in West Columbia would like to teach you how it works. The Basics There’s plenty of science behind keeping your living space cool. Your air conditioner functions in a similar way to your refrigerator, but your AC has a bigger 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 alters 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 freed and is then condensed back into a sub-cooled liquid. Four Components There are 4 central sections to your air conditioner unit: a compressor, an evaporator coil, the condensing coil and an expansion valve. The evaporator coil is where 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 moves throughout the cold evaporator coil and the heat is taken from the air. This cooled air is then sent 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 raises 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 accomplishes your physics lesson of the day…your air conditioner runs on an never-ending loop of science. We understand that it’s not as crucial to you how it works, but that it’s working. If you’d like to talk about staying cool and comfortable in West Columbia give us a call at 803-796-9172 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.