An air conditioning unit takes warm air from inside your business or home and places it into the outside air. Chemicals that convert from gas to liquid and back to gas are used during this process.

There are three parts to an air conditioning unit: a condenser, a compressor, and an evaporator. The evaporator is found inside your home or office. The other two parts are placed outside of the building they are cooling.

The chemical, in liquid form, gets to the compressor, which compresses the liquid into a hot gas. The hot gas is pushed to the condenser, and onto the evaporator where it is pushed into the air outside the home or office by the fan on the evaporator.

In essence, your air conditioning unit acts like a refrigerator without the box that traps the cool air.