A water chiller functions as a tool used to lower the temperature of water. Most chillers use refrigerant in a self-contained cycle to facilitate heat exchange from water where the refrigerant is then pumped to a location where the waste heat is sent over to the atmosphere. However, There are other methods in performing this action. In hydroponics, Pumps, Lights and ambient heat can warm the reservoir water temperatures, Leading to plant root and health problems. For ideal plant health, A chiller may serve as to lower the water temperature below ambient level, 68 f 20 c stands as a reliable temperature for most plants. This results in healthy root production and efficient absorption of nutrients. In chilled water, Air conditioning frequently serves as to cool a construction s air especially in, And equipment situations where many individual rooms must be such as, Controlled separately a hotel. A chiller lowers water temperature to between 40 f 4 c and 45 f 7 c before the water is pumped to the location to be cooled.