evaporator is a very essential device in air conditioning system because it is where the core process ac work in cooling the room temperature, this tool is made of small and circular copper tubes wrapped by an aluminum grating grille in this evaporator pipe there is a refrigant or called ac coolant this material is the most widely used is the type of freon if now there is a new cooling material called musicol, musicol is also the same as refrigant. this refrigant works the heat sucker and then circulated again by indoor blower, so in essence the air in the room will be absorbed by the evaporator with the help of the indoor blower, then enter into the pipe of the evaporator so that the heat of the air into the capillary pipe is absorbed by freon and changed into air colder.