Air Refrigeration systems contain at least two heat exchangers usually called the evaporators and the condensers. In the evaporator, refrigerant changes from the liquid to gaseous state while extracting heat from the cooling fluid (Air or Water). In the condenser refrigerant changes from the vapour to the liquid state rejecting heat an external fluid.

Air Refrigeration systems contain at least two heat exchangers usually called the evaporators and the condensers. In the evaporator, refrigerant changes from the liquid to gaseous state while extracting heat from the cooling fluid (Air or Water). In the condenser refrigerant changes from the vapour to the liquid state rejecting heat an external fluid.