The condensor is the other heat exchanger in a mobile A/C system. Like radiators and evaporators, condensors are also constructed as a series of tubes with fins around them. But unlike an evaporator, whose job is to absorb heat, the condensor’s job is to release heat. More specifically, to release the heat the refrigerant absorbed while it was flowing through the evaporator, very much the same way the radiator releases the heat from engine coolant that the coolant absorbed while it was flowing through the engine.