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Water Cooled Two Stage Screw Condensing Unit

Advantages：

With the rapid development of refrigeration market, there are more and more large-size refrigeration storages, ice making equipment and quick-frozen devices. Freon piston compressor has been difficult to meet the needs of these devices. Our SLLG Series semi-hermetic low temperature condensing unit can meet the refrigeration of -50~-30℃, and can be widely used in large-scale refrigeration equipment.

Water Cooled Two Stage Screw Condensing Unit Details

Features：

◆ The unit equipped with Taiwan Fusheng semi-hermetic two-stage screw compressor, which is with high efficiency, long life, less vibration and less noise;

◆ The unit equipped with complete configuration, which are world well-known refrigeration parts and accessories with high reliability.

◆ The unit has multi-protection for compressor counter rotation, over heat, over load, exhaust temperature, low oil level, oil flow and high-low pressure of the system.

◆ Economizer is integrated which enhance the cooling capacity during low temperature running.

◆ With multi-level energy regulation, energy can be adjusted according to the change of cooling load, which can effectively reduce energy consumption;

Main Parts:

●Two-stage low temperature screwcompressor●Oil separator ●Oil cooler ●Oil circle components ●Condenser(Only for water cooling unit) ●Reservoir ●Liquid pipe filter ●Sight glass ●Economizer ●Inhale filter ●Pressure protector ●Pressure gauge ●Control box(PLC+Touch pad)

Main tech parameters：

Remark: Below parameters are based on Refrigerant R22, please contact us for more details if any other kinds of refrigerants used.

Single compressor unit:

Type					SLLGS
					60JF	80JF	120JF
Compressor type	Type				SDL-220B	SDL-330B	SDL-450B
	Style				Semi-hermetic two-stage screw compressor
	Quantity				1	1	1
Cooling capacity and power	Evaporation -40℃			Cooling capacity(KW)	59.58	86.67	117.61
				Power(KW)	38.5	56.44	76.97
	Evaporation -50℃			Cooling capacity(KW)	37.64	54.76	74.3
				Power(KW)	38.03	56.16	76.95
	Evaporation -60℃			Cooling capacity(KW)	22.27	32.39	43.96
				Power(KW)	45.46	68.61	95.46
Storage temperature( ℃)					-50～-30℃
Refrigerant					R22
Power supply					380V/3P/50Hz
Condenser		Style			High efficient pipe-shell style
		Nominal flow (m^3/h)			23	34	46
		Cooling Water port size			2-1/2"	3"	4"
Port		Inhale port(mm)			Φ76	Φ108	Φ108
		Liquid supply port (mm)			Φ28	Φ28	Φ35
Boundary dimensions			L (mm)		2800	2900	2900
			W (mm)		1000	1100	1100
			H (mm)		1400	1500	1500

Unit design condition: cooling water inlet 30℃，outlet 35℃, running with economizer.

Unit with Two Compressors in Parallel:

Type					SLLGS2
					120JF	160JF	240JF
Compressor type	Type				SDL-220B	SDL-330B	SDL-450B
	Style				Semi-hermetic two-stage screw compressor
	Quantity				2	2	2
Cooling capacity and power	Evaporation -40℃			Cooling capacity(KW)	119.16	173.34	235.22
				Power(KW)	77	112.88	153.94
	Evaporation -50℃			Cooling capacity(KW)	75.28	109.52	148.6
				Power(KW)	76.06	112.32	153.9
	Evaporation -60℃			Cooling capacity(KW)	44.54	64.78	87.92
				Power(KW)	90.92	137.22	190.92
Storage temperature( ℃)					-50～-30℃
Refrigerant					R22
Power supply					380V/3P/50Hz
Condenser		Style			High efficient pipe-shell style
		Nominal flow (m^3/h)			46	68	92
		Cooling Water port size			4"	4"	5"
Port		Inhale port(mm)			Φ133	Φ157	Φ157
		Liquid supply port (mm)			Φ35	Φ42	Φ42
Boundary dimensions			L (mm)		2500	2700	2800
			W (mm)		1800	2100	2200
			H (mm)		1400	1500	1500

Unit design condition: cooling water inlet 30℃，outlet 35℃, running with economizer.

Unit with Three Compressors in Parallel:

Type					SLLGS3
					180JF	240JF	360JF
Compressor type	Type				SDL-220B	SDL-330B	SDL-450B
	Style				Semi-hermetic two-stage screw compressor
	Quantity				3	3	3
Cooling capacity and power	Evaporation -40℃			Cooling capacity(KW)	178.74	260.01	352.83
				Power(KW)	115.5	169.32	230.91
	Evaporation -50℃			Cooling capacity(KW)	112.92	164.28	222.9
				Power(KW)	114.09	168.48	230.85
	Evaporation -60℃			Cooling capacity(KW)	66.81	97.17	131.88
				Power(KW)	136.38	205.83	286.38
Storage temperature( ℃)					-50～-30℃
Refrigerant					R22
Power supply					380V/3P/50Hz
Condenser		Style			High efficient pipe-shell style
		Nominal flow (m^3/h)			69	102	138
		Cooling Water port size			4"	5"	6"
Port		Inhale port(mm)			Φ157	Φ157	2×Φ133
		Liquid supply port (mm)			Φ42	Φ54	Φ54
Boundary dimensions			L (mm)		2500	3500	3600
			W (mm)		1800	2100	2200
			H (mm)		1600	1700	1700