The Air Conditioner's Evaporator

Inside the air conditioner's evaporator, the liquid is allowed to expand. As it does so, it evaporates into a gas. This part of the tubing is indoors. As the low temperature gas flows through the evaporator a fan blows hot room air across the tube. The gas absorbs the heat and the room air, now cooled down, is blown back into the room. The heated gas next flows back into the air conditioner's compressor and the cycle begins again. As indicated by the flow patterns, the evaporator is in the part of the tubing that runs inside the dwelling and the compressor and condenser are in the parts of the tubing outside the house.

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