How an air conditioner works


(Source: energy.gov)

Air Conditioners use electric energy to transfer heat and humidity from the interior of your home or office to the relatively warmer outside environment. They employs the same operating principles and basic components as your home refrigerator.

The basic concept is that a chemical called refrigerant, loops from inside the home to outside and back again, absorbing and casting out heat in the process.

Simply put, the refrigerant comes into the home cold, it absorbs the heat, and it goes back into the unit outside where it releases the heat. Thus, the air conditioner unit makes refrigerant ready to soak up heat again.

The two refrigerants commonly used in residential air conditioners are R-22 and the newer R-410A. The R-22 is chemically known as hydrochlorofluorocarbons, or HCFC. According to the Environmental Protection Agency (EPA), all HCFCs were completely banned December 31st, 2014.

An in-depth explanation about home cooling and how air conditioner works is available here: https://energy.gov/energysaver/home-cooling-systems/air-conditioning

Indoor comfort

Human comfort is determined by a combination of the effects of relative humidity and ambient temperature. When there is excess humidity in the air, our body's ability to cool itself through perspiration is inhibited.

One way an air conditioner makes us feel cooler is by reducing the amount of moisture in the air.

If your air conditioning system is working efficiently, it will remove the proper amounts of both moisture and heat from your living area, resulting in the comfortable environment you want.

If not, you may never get the comfort level you desire for your home, regardless of the temperature setting you are using.

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