The following components make up the AIr Conditioning System
The Refridgerant enters the compressor in vapor form and is compressed by the compressor, where the pressure increases and it enters the condenser at the front of your car (looks like a radiator) where it is collected and it turns into a liquid.
The liquid refridgerant then enters the evaporator under pressure (Look like a radiator, that is hidden behind the dashboard). It then turns back into a vapor, and due to the laws of physics it supercools, and warm air from the interior of the car is blown over the evaporator, which extracts the heat coolant in the car.
It then enters the compressor again to keep repeating the cycle.