Features : 1. Adopt imported semi-hermetic screw compressor as the mainframe, high refrigerating, efficiency, less parts, reliable running. 2. Can supply 0 ~ 4c glycol solvent and 5 ~ 20c cold water. This model can supply 20~ 30c cold water or large temperature difference cool water such as 8~ 20c ( intake and outlet) according the customers special requirements 3. The heat recycled type unit can provide high quality hot water. Applicable area : the mainframe of various technical cold source.