The utility model has the advantages of beautiful appearance, compact structure, small occupied space, simple and convenient installation and maintenance.

It adopts microcomputer intelligent control to automatically adjust the output energy of the compressor according to the change of load, so that it always maintains a high efficiency working state.

It has multiple protection functions such as power phase sequence, phase loss, high and low pressure, insufficient water flow, anti-icing of chilled water, overload of compressor and motor, and overheating of compressor, which makes the operation of the unit more reliable.

The small cooling capacity unit adopts the international famous brand scroll compressor, which has reliable performance, low noise and low vibration. The large cooling unit adopts high-efficiency and high-IPLV twin-screw compressor, 5:6 asymmetric tooth profile, high volumetric efficiency, and unloading energy control device, which can realize multi-stage energy regulation and higher operating efficiency.

Its main components are made of famous brand products at home and abroad, with superior performance and reliable operation, which makes the operation of the unit more stable and works better.

The use of a full liquid evaporator makes the unit more energy efficient and works better. The shell-and-tube condenser uses an optimized temperature field distribution and refrigerant flow field distribution to make the heat transfer efficiency higher.

The microcomputer intelligent controller can control the water temperature more accurately and ensure the constant temperature of the air-conditioned room. The well-designed control logic makes the unit run more stable and reliable, and at the same time achieves the best economic operation, and saves the operating cost for the user.