How Does an Air Conditioner Work?

The temps are reaching record highs across the country and many homes are running some type of air conditioner to battle the smoldering heat. Though we are all thankful that your air conditioner is functioning, the experts at Gee & Missler Heating & Air Conditioning in Wyandotte wants to give you a glimpse at just how an AC system works.

The Basics

There’s a plethora of science regarding keeping your living space at a comfortable temperature. Your air conditioner runs in a parallel way to your refrigerator, of course your AC has a larger responsibility to manage. Both your fridge and AC cool with a constant loop of refrigerant, in your air conditioner this refrigerant loops from inside to outside your home. This refrigerant effortlessly converts from a liquid to gas and back to a liquid again. It enters your residence as a sub-cooled liquid and as it evaporates it absorbs heat from inside the home and expands back into vapor. This vapor then transfers back to your outdoor unit where the heat is let go 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 where your refrigerant evaporates from a sub-cooled liquid into a super-heated vapor. This component can be located in the home, in your garage or possibly in your attic. Warm air transports through 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 increases the pressure of the vapor until it is converted 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 pushed outdoors and the refrigerant is converted back into a sub-cooled liquid. The sub-cooled liquid returns to the indoor evaporator coil via an expansion valve or metering device. This continues repeatedly throughout the process.

That concludes your physics lesson of the day…your air conditioner functions 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 Wyandotte you can reach us at 734-284-1224. You’ll be able to get through this hot weather thanks to science and the support from our experts.

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