How does an air conditioner cool down air?

Answer 1

The refrigerant absorbs heat from whatever area is being cooled, whether it be the passenger compartment of a vehicle or the interior of a building. The refrigerant is then pressurized and superheated. Once superheat is achieved, the heat from the refrigerant is rapidly exchanged with the ambient air, and the refrigerant which is returned is much colder. A fan blows air over this cold refrigerant in the condenser, and the cold air flows through the vents to cool the area which is supposed to be cooled.

That's a bit of a simplified version, but you should get the gist of it.