Air Cooled Free Cooling Screw Chiller

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We offer a comprehensive range of free cooling chillers with different types of compressors and optimized for various applications, starting from air conditioning solutions to process cooling to data center cooling. The whole portfolio includes highly efficient, feature-rich models to select from.

Free Cooling Screw Chiller Features:
1. Cooling capacity from 260~550kW.
2. Hanbell screw compressor.
3. Ambient temperature 0℃ or 5℃ can start free cooling.

Parameter Table 1

Model	LSBLGFC***BGS		260	280	300	320	340
Nominal Cooling Condition	Cooling Capacity	kW	257	276	302	322	339
		USRT	73	79	86	92	97
		Btu/h	875000	942000	1031000	1099000	1158000
	Cooling Input Power	kW	86	97	103	106	114
IDC Working Condition	Cooling Capacity	kW	257	276	302	322	339
Free Cooling 5℃	Ambient Temperature	℃	5	5	5	5	5
	Cooling Capacity	kW	180	193	212	226	238
	Input Power	kW	19.8	24.2	24.2	24.2	28.2
Free Cooling 0℃	Ambient Temperature	℃	0	0	0	0	0
	Cooling Capacity	kW	277	298	327	348	367
	Input Power	kW	19.8	24.2	24.2	24.2	28.2
Power Supply			3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz
Maximum Input Power		kW	125	140	150	154	165
Maximum Input Current		A	216	243	259	266	285
Compressor	Model		Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor
	Quantity	Unit	1	1	1	1	1
	Start Mode		Y-△	Y-△	Y-△	Y-△	Y-△
	Energy Regulation		25%-100%	25%-100%	25%-100%	25%-100%	25%-100%
No. of Refrigerant Circulation Circuits			1	1	1	1	1
Evaporator	Type		Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger
	Water Flow Rate	m3/h	52.9	57.0	62.4	66.5	70.1
	IDC Water Side Pressure Drop	kPa	160	160	160	160	160
	Connecting Pipe Diameter	DN	100	100	100	125	125
Fan	Type		Axial Fan	Axial Fan	Axial Fan	Axial Fan	Axial Fan
	Quantity		4	6	6	6	6
	Total Air Volume	m3/h	97480	104920	114920	122480	129000
	Total Power of The Fan	kW	8.8	13.2	13.2	13.2	13.2
Refrigerant	Type		R134a	R134a	R134a	R134a	R134a
Refrigerant	Charge	kg	83	89	97	104	109
Water Pump	Input Power	kW	11.0	11.0	11.0	11.0	15.0
Water Pump	External Head	m	23	23	25	23	23
Net Dimension	L	mm	2762	4108	4108	4108	4108
	W	mm	2260	2260	2260	2260	2260
	H	mm	2540	2540	2540	2540	2540
Net Weight		kg	2800	3200	3600	3800	4050
Running Weight		kg	2940	3360	3780	3990	4253
Notes: 1. The designed secondary refrigerant is 45% ethylene glycol, which meets the minimum environmental temperature of -30 ℃ for antifreeze requirements. If there are other operating parameters required, please contact us. 2. Nominal cooling condition: ambient temperature is 35℃，secondary refrigerant inlet/outlet temperature is 12/7℃. IDC cooling condition：secondary refrigerant inlet/outlet temperature is 15/10℃. Free cooling：secondary refrigerant inlet/outlet temperature is 15/10℃. 2. The maximum working pressure on the water side of the chiller is 1.0MPa, and the fouling coefficient is 0.018 m2 ℃/kW. 3. Applicable ambient temperature range:-30～46℃； 4. If there are changes due to improving product performance, please refer to the parameters on the nameplate of the chiller.

Parameter Table 2

Model	LSBLGFC***BGS		390	430	460	550
Nominal Cooling Condition	Cooling Capacity	kW	389	432	464	543
		USRT	111	123	132	155
		Btu/h	1328000	1474000	1584000	1853000
	Cooling Input Power	kW	128	143	154	181
IDC Working Condition	Cooling Capacity	kW	389	432	464	543
Free Cooling 5℃	Ambient Temperature	℃	5	5	5	5
	Cooling Capacity	kW	273	302	325	380
	Input Power	kW	35.2	39.6	39.6	44.0
Free Cooling 0℃	Ambient Temperature	℃	0	0	0	0
	Cooling Capacity	kW	421	467	502	587
	Input Power	kW	35.2	39.6	39.6	44.0
Power Supply			3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz	3N～/ 380V/ 50Hz
Maximum Input Power		kW	186	208	223	262
Maximum Input Current		A	322	360	387	454
Compressor	Model		Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor	Semi Enclosed Screw Compressor
	Quantity	Unit	1	1	1	1
	Start Mode		Y-△	Y-△	Y-△	Y-△
	Energy Regulation		25%-100%	25%-100%	25%-100%	25%-100%
No. of Refrigerant Circulation Circuits			1	1	1	1
Evaporator	Type		Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger	Shell and Tube Heat Exchanger
	Water Flow Rate	m3/h	80.4	89.2	95.9	112.2
	IDC Water Side Pressure Drop	kPa	160	160	160	160
	Connecting Pipe Diameter	DN	125	125	125	150
Fan	Type		Axial Fan	Axial Fan	Axial Fan	Axial Fan
	Quantity		6	8	8	10
	Total Air Volume	m3/h	148000	164200	176480	206480
	Total Power of The Fan	kW	13.2	17.6	17.6	22.0
Refrigerant	Type		R134a	R134a	R134a	R134a
Refrigerant	Charge	kg	125	139	150	175
Water Pump	Input Power	kW	22.0	22.0	22.0	22.0
Water Pump	External Head	m	27	26	25	24
Net Dimension	L	mm	4108	5524	5524	6870
	W	mm	2260	2260	2260	2260
	H	mm	2540	2540	2540	2540
Net Weight		kg	4200	5100	5673	7073
Running Weight		kg	4410	5355	5956	7426
Notes: 1. The designed secondary refrigerant is 45% ethylene glycol, which meets the minimum environmental temperature of -30 ℃ for antifreeze requirements. If there are other operating parameters required, please contact us. 2. Nominal cooling condition: ambient temperature is 35℃，secondary refrigerant inlet/outlet temperature is 12/7℃. IDC cooling condition：secondary refrigerant inlet/outlet temperature is 15/10℃. Free cooling：secondary refrigerant inlet/outlet temperature is 15/10℃. 2. The maximum working pressure on the water side of the chiller is 1.0MPa, and the fouling coefficient is 0.018 m2 ℃/kW. 3. Applicable ambient temperature range:-30～46℃； 4. If there are changes due to improving product performance, please refer to the parameters on the nameplate of the chiller.

Free cooling is an ideal solution for all applications requiring a year-round cooling load. Whether it be data centers, mission critical, grow facilities or any type of process cooling.

No.	Name	Brand	Country	Feature	Remark
1	Compressor	Hanbell	Shanghai,China	Semi enclosed screw type, efficient and reliable
2	Shell and tube heat exchanger	Saft	Zhejiang,China	Efficient shell and tube heat exchanger (dry/falling film) Uniform liquid separation and good oil return
		Yinggu	Zhejiang,China
3	Fin Heat Exchanger	Shenglin	Hebei,China	Internally threaded copper tube, hydrophilic aluminum foil, high efficiency, and less prone to scaling
4	Electronic expansion valve	Sanhua	Zhejiang,China	High precision, precise control, long lifespan, rapid adjustment, and sharp response
5	Pressure sensor	Sensata	Jiangsu,China	Stable performance
		Sanhua	Zhejiang,China
6	Axial fan	Xingxin	Hebei,China	Compact structure, low noise, high efficiency
		Kemao	Zhejiang,China
7	Safety valve	Castel	Shanghai,China	Stable quality, safe and reliable
8	Electric three-way valve	Johnson Controls	Shanghai,China	Low resistance and reliable action
9	Water pump	CNP	Zhejiang,China	High efficiency and stable quality	Optional
10	Dry filter	Sanhua	Zhejiang,China	High dryness, replaceable filter element
		Dun An	Zhejiang,China
11	Flow switch	Anchao	Shanghai,China	Stable quality and long lifecycle
		Kaobo	Shanghai,China
12	Controller	Punp	Guangzhou,China	Stable performance and reliable quality
		Syslab	Shenzhen,China
13	Contactor	Schneider	Shanghai,China	Stable performance and reliable quality
		Siemens	Suzhou,China
14	Thermal relay	Schneider	Shanghai,China	Stable performance and reliable quality
		Siemens	Suzhou,China
15	Circuit breaker	Schneider	Shanghai,China	Stable performance and reliable quality
		Siemens	Suzhou,China

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