Feature: Environment friendly by using refrigerant HLR-0650WS Reliable and durable design with the latest semi-hermetic screw compressor. Flooded heat exchanger with enhanced heat transfer tubes for high heat transfer efficiency. Electronic expansion valve ensures good part load efficiency. Easy and reliable operation and maintenance by dual circuit design for HLR-0650WS.chiller. Easy operation by powerful PRO-DIALOG PLUS control . Compact design ensures passing through standard door frame. Latest noise reduction box for effectively reducing noise.