Water-cooled unit commonly known as freezer, chiller, ice water machine, freezing water machine, cooling machine, etc., because of the wide use of all walks of life, so the name is countless.The principle of its properties is a multifunctional machine that removes liquid vapors through a compression or heat absorption refrigeration cycle.The steam compression chiller consists of four main components of the steam compression refrigeration cycle compressor, evaporator, condenser, and part of the metering device in the form of a different refrigerant.