The cold source of the chiller is the cooling water provided by the cooling tower and the cooling water provided by the fan. These two methods are distinguished from the choice of chiller. Generally, there are water-cooled chiller and air-cooled chiller. The difference is that the cooling methods are different, so in terms of structure, their condensers are also different, which are shell and tube type and fin type. Water-cooled chiller must rely on the cooling water tower to work, while air-cooled chiller is cooled by its own fan. The basic principle of chiller: commonly known as freezer, refrigerator, ice water machine, freeze water machine, cooler, etc., because it is widely used in various industries, it has many names. Its property principle is a multifunctional machine that removes liquid vapor through a compression or heat absorption refrigeration cycle. The steam compression chiller includes four main components: a vapor compression refrigeration cycle compressor, an evaporator, a condenser, and some metering devices, thus realizing different refrigerants. Absorption chiller uses water as a refrigerant and relies on water and lithium bromide solution to achieve a strong affinity for refrigeration effect!