Generally refers to chilled water supply and chilled water return, chilled water supply, chilled water return; the abbreviations are usually CWS and CWR, and can also be chilled water supply and chilled water return, cooling water supply, cooling water return, but the probability is relatively low.
The water cooling system for primary and secondary water is a water-to-water cooling system, which is generally a water cooling system used for air conditioning.
Primary Water: This is the chilled water that has passed through the refrigeration host. The supply/return water temperature is relatively low. For example, the supply and return water temperatures are 7/12°C respectively. The primary circulation pump sends water to the refrigeration host. Circulates in the room to lower the air temperature.
Second waterarea: The heat removed by the refrigeration unit during the production of primary water is transferred to the secondary water. It is pumped to the water tower via secondary water circulation and is used as air to reduce the temperature of the circulating water and continuously discharge the heat removed during primary water production.