The open chiller is mainly composed of a compressor, evaporator, condenser, electrical control system, and refrigeration accessory components. The open chiller only has a complete refrigeration and control system inside, and its water system is not perfect. Because its unit does not come with a water tank or pump, customers need to match it according to their actual situation. Advantages: The open chiller unit does not come with a water tank or water pump, making it convenient for customers to choose the appropriate water tank volume, water pump range, etc. according to their actual needs