Air conditioning inspection

All air conditioning systems reduce the temperature and adjust the humidity of the air in the home, to levels that provide a certain degree of comfort. The most common system used in the United States is the Basic Air Conditioning System with Central Air Cooling. Another less common type includes the water cooling system, gas chillers, and geothermal systems.

How do they work?

The air conditioning system with common central air cooling, draws the heat from the air in the home and takes it to the outside of the home. Air conditioners perform this by taking advantage of a basic physical law, the heat moves to areas that are colder. The heat inside the home is transferred to a coolant that carries the heat outside the home.

Currently the most effective refrigerant is Freon. Warm air in the home is blown to a spiral evaporator containing Freon Liquid (about 20 degrees F). The Freon absorbs heat from the air in the house, which cools the air. The hottest freon (about 50 degrees F), which has boiled and converted to gas, is then transferred to the outside of the home where it disperses the heat.

The question is, how is the heat dispersed, when it is already hot outside? A gas or liquid, when compressed, will have a higher temperature. A compressor is used to compress freon gas, thereby increasing its temperature by approximately 100 degrees F causing Freon to become much warmer than outside air. The outside air (about 85 degrees F) is then blown to the condensation coil containing the hot freon (about 150 degrees F). The air absorbs the heat of the compressed freon, in effect cooling it. The cold, but still compressed Freon (about 100 degrees F), is then returned to the house. To cool the temperature of the liquid freon further, the freon is dilated or decompressed (at about 20 degrees F). Freon is again ready to absorb heat from the air in the home.