How does an air conditioner work?

An air conditioner works by absorbing the heat from inside your home and moving it outside. This is done by three main components a compressor, an evaporator, and a condenser. The compressor pulls in a cool low pressure gas and squeezes it into a hot high pressure gas. The high pressure gas then goes through the condenser coil and gets cooled and converted into a high pressure liquid. The liquid refrigerant then heads to the evaporator coil where it is forced through a tiny opening. On the other side of that opening the refrigerant pressure drops and the refrigerant evaporates from a liquid into a gas. As the liquid changes to gas and evaporates, it extracts heat from the air around it. The heat in the air is needed to separate the molecules of the fluid from a liquid to a gas. After the working fluid leaves the evaporator, it is a cool, low pressure gas. It then returns to the compressor to begin its trip all over again.

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