This whole family of screw type air-cooled chillers with a wide range of cooling capacity and heating capacity can meet various load requirements in diverse occasions. The cooling capacity ranges from 146.7kW to 691 kW and the heating capacity ranges from 153.5kW to 739KW.

1. The screw type air-cooled chillers with small footprint and compact pipeline design only need add water pips outside. All of those benefits make the units easy to be installed and maintained.

2. Due to the intelligent control, the units can adjust the output of the compressor automatically according to the variable load. So that the units can operate in high efficiency and save energy at any time.

3. The screw type air-cooled chillers are equipped with the most advanced import twin-rotor screw semi-hermetic compressor with 5:6 teeth ratio. The unloading energy control device of the compressor can realize multi-grade and stepless energy adjustment.

4. The micro-computer control system we used has functions of safe protection, communication, failure judgment automatic adaptation, etc.

5. The units include two kinds - Integral type and modular type. So it can meet different load requests and save energy throughout the year. The integral type is an independent full-featured air-cooled chiller, while the modular type units usually are made of 2~8 modules. Besides, the modular type unit has large cooling capacity and standby function.

6. The main refrigeration parts we used are all the national or international famous products with excellent efficiency and reliable performance.

7. Multi-protection: High/low pressure protection, anti-freeze protection of chilled water, power-phase sequence protection, phase-lack protection, the water-flow inadequate protection, overheating protection of compressor motor, automatic start-up function after power cut.
Operating Condition of Nominal Cooling

Item	Chilled Water		Cooling water
	Inlet water temp.(℃)	Outlet water temp. (℃)	Inlet water temp.(℃)	Outlet water temp. (℃)
Cooling	12	7	35	---
Heating	40	45	7	6

Technical data

Model	LSF series
Power	380V—460V 3phase---50/60Hz
Refrigerant	R22	----	R407C	R134a
Cooling capacity	146.7~691.0KW
Heating capacity(heat pump)	153.5~739.0KW
COP value	3.2
Dimension	Width*Height*Length 2100*2400*xxxx (mm)