The circulating water of industrial chillers is generally distilled water or pure water (Don't use tap water because there are too many impurities in it), and it should be replaced regularly. The frequency of circulating water replacement is determined according to the operating frequency and use environment, the low-quality environment is changed once per half a month to a month. the ordinary environment is changed once per three months, and the high-quality environment can change once per year. In the process of replacing the chiller circulating water, the correctness of the operation process is very important. The video is the operation process of replacing the chiller circulating water demonstrated by the S&A chiller engineer. Come and see whether your replacement operation is correct!