A water chiller is a kind of equipment used for refrigeration, which is mainly used to cool water or other liquids to the desired temperature. Water chillers are usually used in industrial production and can provide cooling for equipment and machines on the production line. In addition, water chillers are also widely used in medical, chemical, food and other fields. The water cooler is composed of compressor, condenser, evaporator and control system, which can be cooled quickly and efficiently. Its working principle is to use the compressor to compress the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas, dissipate heat through the condenser, condense the gas into liquid, and then absorb heat through evaporator to form a cold water cycle. Water cooler has the advantages of stable work, high efficiency, energy saving and environmental protection, which can improve production efficiency and reduce energy consumption. At the same time, the water cooler also has an intelligent control system, which can realize automatic control and monitoring to ensure the safe and reliable operation of the equipment. Generally speaking, water chillers are powerful and widely used refrigeration equipment, which can provide reliable cooling solutions for various industries.