Open chiller mainly consists of compressor, evaporator, condenser, electronic control systems, chilled water, chilled water machine accessories, components, water-cooled chiller box by the compressor, evaporator, condenser, water pumps, water tanks, electric control system frozen parts consisting of open water-cooler, so you can see, the difference between the two is a water-cooled chiller box can be built into the pump and water tank, otherwise known as the open chiller. 1, according to its use of screw refrigeration compressor different categories. Screw refrigeration compressor is divided into two kinds of twin-screw and single screw. Twin screw refrigeration compressor having a pair of mutually bite together, helical rotor teeth opposite spin direction. Single screw refrigeration compressor having an outer cylindrical surface machining of six helical screw rotor slots. About butterfly, both sides of the rod vertically mounted racks 11 identical planetary gear. 2, according to the condensation method is divided into water-cooled screw chillers and air-cooled screw chillers. 3, according to the formal structure of the compressor seal into open, semi-enclosed and fully enclosed. 4. The functions are divided into single-cold air conditioning and heat pump type. 5, according to the use of refrigerant R134a and R22 divided into two kinds. 6, according to the evaporator structure divided into common type and full-liquid type. Jiang million chilled water machine, water-cooler-long open-plating chilled water cooling machine (certified merchants) provided by the Dongguan City-long Refrigeration Electrical and Mechanical Equipment Engineering Co., Ltd .. Dongguan City-long Refrigeration Electrical Equipment Engineering Co., Ltd. (www.dgxuelong.com) is a professional engaged in "sales, installation, maintenance, electrical and mechanical equipment (excluding Holds for repair of electrical equipment), refrigeration equipment," the business, the company adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Fu.