How Does an Air Conditioner Work?07/18/2016 The temperatures are climbing to record figures throughout the country and many homes are utilizing some type of air conditioner to battle the summer heat. While we are all appreciative that your air conditioner runs, the professionals at Cytech Heating & Cooling in the Upper Rio Grande Valley would like to tell you how it works. The Basics There’s plenty of science regarding keeping your house cool. Your air conditioner operates in a parallel way to your refrigerator, however 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 converts 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 soaks in heat from your indoor air and expands back into vapor. This vapor then transfers 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 central components 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 found inside your home, in your garage or sometimes in your attic. Warm air moves throughout 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 increases 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 endless loop of science. We know that it’s not as top-priority to you how it works, but that it’s working. If you’d like to talk about staying cool and comfortable in the Upper Rio Grande Valley give us a call at 956-630-3522 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.