Air Conditioner

Air conditioning is really pretty simple when you get down to the basics. It is a sealed system composed of copper tubing, some electronics, and three basic components. A compressor, two heat exchangers or coils. The cycle goes like this;

  • The compressor compresses the refrigerant into high pressure vapor.
  • The refrigerant vapor enters the outside coil (condenser) where a fan blows air across it. This cools the refrigerant by removing heat and condenses it to liquid. This is the same as when steam is cooled. It will condense to liquid water.
  • The refrigerant which is now liquid is pushed along the refrigerant line to the inside coil (evaporator) where it encounters a metering device.
  • The metering device limits the amount of refrigerant entering the inside coil (evaporator) and creates a pressure drop across it.
  • This allows the refrigerant to expand from a small diameter tube to a larger one.