The major parts of an air conditioner are:

• Compressor - squeezes the working fluid (Freon) and supports its refrigerated cube contour-based motion;
• Condenser - radiator, which is located on the outside portion of the air conditioner. Its name reflects the air conditioner working process - transition of Freon from the gaseous phase to the liquid phase (condensation). For the high efficiency is mostly made of cooper and aluminum;
• Evaporator - radiator, which is located on the internal portion of the air conditioner. In the evaporator Freon transits from the liquid phase to the gaseous phase (evaporation). Is mostly made of cooper and aluminum;
• Thermostatic expansion valve - flap throttle, relieving Freon pressure in front of evaporator;
• Fans - blow air over the coils to improve their ability to dissipate heat (to the outside air) and cold (to the room being cooled).