How Does an Air Conditioner Work?

The temps are reaching record numbers throughout the states and most homes are using some variety of air conditioner to beat the seasonal heat. Though we are all thankful that your air conditioner is functioning, the experts at County Line Mechanical LLC in Reinholds wants to give you a glimpse at just how an AC system works.

The Basics

There’s a plethora of science behind keeping your home at a comfortable temperature. Your air conditioner functions in a parallel way to your refrigerator, of course your air conditioner has a larger job to manage. Both your fridge and AC cool with a reoccurring loop of refrigerant, with your AC this refrigerant loops from inside to the outdoors. This refrigerant quickly alters from a liquid to gas and back to a liquid again. It flows into your home as a sub-cooled liquid and as it evaporates it takes in 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 central components to your AC system: 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 in the home, in your garage or even in your attic. Warm air transports across the cold evaporator coil and the heat is separated from the air. This cooled air is then released throughout the space inside your home.

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

That accomplishes your physics lesson of the day…your air conditioner operates on an never-ending loop of science. We know that it’s not as top-priority to you how it works, but that you are staying cool. If you’d like to chat about staying cool and comfortable in Reinholds contact us at 717-216-0846. Thanks to science and our pros, you’ll get through this hot summer.

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