When I chose to have central air conditioner put into my home, I started doing some looking online. I didn’t want to make such a huge investment without being knowledgeable about the technology. I thought I had a pretty great method of how an air conditioner operated, although I was bad. The majority of cooling units are split devices, which consists of an indoor air-handling component and an outdoor condensing device. The indoor air handler houses a supply fan, a cooling coil, and the expansion unit. The outdoor component contains a compressor and a condenser coil. The a/c works to chill down and dehumidify indoor air by passing it over a cold coil surface. The indoor coil is entirely made up of rows of wires that pass refrigerant through the coil. As the hot air passes over the indoor cooling area, it heats the cold refrigerant and transforms it into a hot gas. The gas is then taken from the coil to the compressor, and finally, the outdoor condenser. The heat is then changed, creating condensate, as the refrigerant is condensed back into a liquid form. The idea is simply repeated over and over, creating a cooling effect in the home. The seasonal energy efficiency rating (SEER) says how effectively the a/c manages the cooling idea. The bigger the SEER rating, the more energy efficient the equipment, and the less the operational costs. Units with a bigger SEER, but, cost far more to get. I decided that it was worth a much more large initial investment to trim down operational costs every day.