1. The overall frame and bottom plate of the unit are made of galvanized steel plate with polyester spraying treatment on the outer surface, so that the whole unit should not be rusted.

2. The unit structure is convenient, compact and simple. The compressor, evaporator and condenser are arranged in layers up and down, and other refrigeration components are arranged along the periphery of the frame, which is convenient for users to fully grasp the operating status of the unit, and plays an effective role in the transportation of the evaporator and condenser, installation of the machine room and daily operation. protection and easier maintenance. The layout of the unit has undergone three-dimensional optimization design, the layout is compact, and the optimized shape ratio requires less maintenance and repair space, occupies a small area of the machine room, and significantly saves space.

1. Semi-hermetic twin screw compressors with special designed for HFC134a,featuring in high efficiency compression and operation under full load and part load condition;

2. Precisely manufactured twin rotor and aerospace-grade bear result in reliable performance, low noise and stable operation;

3. The built-in oil separator has 3 stages of separation ensuring a high effectively oil separation even at high discharge velocity. The improved oil lubrication remarkablely reduces the oil content and the superheat of the discharge gas, thereby furtherly enhances oil separation performance.

4.Controlled by microcomputer, the compressor achieves automatically capacity regulation by stepless slide valve, as a result to enhance the system efficiency under part load condition.

1.The copper tube of flooded type evaporator are completely dipped inside the boiling liquid refrigerant. Thanks to this design, the unit performance and COP are enhanced obviously;

2.Super high efficiency copper tube are designed with patent technology. The external screw on the tube increases the evaporation of the refrigerant and is beneficial for the drop condensation, so it reduces the heat transfer temperature difference between tube internal surface and external surface effectively;

3. In order to achieve perfect water perturbation and turbulent heat transfer, the internal surface of the copper tube is also special designed;

4.Because the chilled water flows inside the tube, it's quite easy to clean and maintenance.

1. The shell and tube heat exchanger adopts high-efficiency double-threaded copper tubes, which improves the heat exchange effect between the refrigerant on the shell side and the cooling water on the tube side, and the heat exchange efficiency is about 30% higher than that of ordinary heat transfer copper tubes.

2. The condenser adopts a unique air intake method, which evenly distributes the flow of refrigerant, prolongs the condensation distance, and achieves the best heat exchange effect. It also increases the subcooling degree of the unit, which can effectively improve the cycle efficiency of the unit.

3. The design, manufacture and inspection of the condenser are in line with the national standards and regulations for pressure vessels such as GB/150 "Steel Pressure Vessels" and JB/4750 "Pressure Vessels for Refrigeration Devices".

1. The unit start-up and microcomputer control part are integrated in the same control cabinet and located at the front of the unit, which is convenient for the on-site operators to operate in the machine room and between the units. All electrical parts maintenance can be carried out at the front of the unit.

2. The electrical control box is made of high-quality steel plate, and the outer surface has been treated with galvanized powder, which makes it weather resistant and can effectively protect the electrical components of the unit.

3. For the safety of the operator, once the host is powered on, the operator will not be able to open the isolation board of the control and electrical components to ensure the safety of the operator.