What Basic Contruction of air condition?

Question

What Basic Contruction of air condition?

Answer 1

Can't tell you how to build one, but here is basically how a 'split unit' air conditioner works:

The exterior unit contains coils (like a car radiator), a compressor, an expansion valve and a fan.

The circulatory system is charged with a refrigerant gas called Freon which is compressed, causing it to become a hot, high pressure gas. This hot gas runs through the coils and with the help of a fan, the heat is dissipated outside.

This results in the cooling of the freon which then condenses into a liquid. The cooled liquid then runs through an expansion valve, making it evaporate into cold, low pressure gas; this is piped into the unit inside the room.

The cold liquid gas passes through another series of coils and a  multi-speed fan draws the air in the room (hottest near the ceiling as heat rises) and blows it back into the room at a lower temperature. This also removes moisture which is drained into a pipe leading outside.

Continuous recycling (and drying) of the air through the cooled coils lowers the room temperature progressively. A thermostatic switch  turns the compressor on and off periodically to maintain the desired room temperature.

Answer 2

There are three basic componenents to a central air conditioning system: a condenser/compressor outdoors, an evaporator/air handler indoors, and ducts to distribute cool air and return warmed air. Here's a diagram of a central air conditioner, along with information on how to choose a system:

http://www.thisoldhouse.com/toh/article/...