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Screw Water-cooled Chiller

Unit Feature
1.Basic chiller
The refrigerating capacity of series units ranges from 176kW to 3600kW. Through years of market validation, it is proved to have reliable quality and stable operation.
2.Heat recovery chiller
The unit adopts heat recovery condenser to produce domestic hot water of 45-55C by using the exhaust waste heat of compressor.
3.Dual-compressor parallel design
The full-liquid unit adopts unique dual-compressor parallel design, with partial load operation efficiency at international leading standard.
4.Highly intelligent control system
Adopt industrial controller, equipped with Chinese display and user-friendly interface, convenient to operate.
5.Reliable product quality
Each unit is tested in strict accordance with the provisions of national standards by using the full-performance test bench designed and produced by Hefei General Machinery Research Institute. It is permitted to leave the factory only when all performance indexes reach or exceed the national standard requirements.

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Product Description

Unit Model Denotation Method

1_0000_fHkUwqSYr

Example: SL920HM indicates total heat-recovery type screw water-cooled chiller using flooded evaporator, with the model code of 920

Screw Water-cooled Chiller

Unit Technical Parameter

Technical Parameters for Screw Water-cooled Chiller (R134a)

Basic type			SLB180	SLB220	SLB260	SLB310	SLB350	SLB400	SLB450	SLB500	SLB550	SLB600	SLB670	SLB740	SLB800
Total heat recovery type			SLB180H	SLB220H	SLB260H	SLB310H	SLB350H	SLB400H	SLB450H	SLB500H	SLB550H	SLB600H	SLB670H	SLB740H	SLB800H
Nominal working condition of refrigeration	Nominal refrigerating capacity	kW	185	223	265	305	344	393	452	504	554	607	672	740	808
	Nominal refrigerating capacity	104kcal/h	15.9	19.2	22.8	26.2	29.6	33.8	38.9	43.3	47.6	52.2	57.8	63.6	69.5
	Rated power	kW	39	47	55	64	72	82	94	104	114	123	135	149	162
	COP	kW/kW	4.74	4.74	4.81	4.76	4.77	4.79	4.80	4.84	4.85	4.93	4.97	4.96	4.98
Power supply		--	3/N/PE AC380/220V 50Hz
Safety protection		--	Semi-hermetic screw type/25%~100% stepless adjustment
Compressor	Type	--	High/low-pressure,safety valve,water cut-off delay,anti-freezing,motor overload,open-phase and phase sequence
Compressor	Qty	set	1
Evaporator	Type	--	U-type dry shell and tube (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	32	38	46	52	59	68	78	87	95	104	116	127	139
	Water resistance	kPa	50	50	60	60	60	60	65	65	65	65	65	65	65
Condenser	Type	--	Horizontal shell and tube type (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	40	48	57	66	74	84	97	108	119	131	144	159	174
	Water resistance	kPa	40	40	40	40	40	40	45	45	45	50	50	60	60
Sensible heat recovery type (optional)	Heat recovery Qty	kW	46	56	66	76	86	98	113	126	139	152	168	185	202
	Hot water flow	m3/h	8	10	11	13	15	17	19	22	24	26	29	32	35
	Hot water resistance	kPa	20	20	20	20	20	20	20	20	20	20	25	25	25
Total heat recovery type (optional)	Heat recovery refrigerating capacity	kW	143	172	205	249	281	321	369	411	452	495	548	604	659
	Heat recovery Qty	kW	195	229	274	328	369	421	487	544	592	644	713	788	869
	Heat recovery power	kW	52	57	69	79	88	100	118	133	140	149	165	184	210
	Heat recovery water flow	m3/h	34	39	47	56	63	72	84	94	102	111	123	136	149
	Heat recovery water resistance	kPa	40	40	40	40	40	40	45	45	45	45	50	50	60
R134a charge Qty	Basic type	kg	40	46	55	64	77	84	94	102	110	120	128	142	160
	Sensible heat recovery type	kg	41	50	58	67	75	86	95	107	115	126	138	153	164
	Total heat recovery type	kg	45	55	63	74	80	90	100	110	118	129	140	155	166

Note:

1. Nominal working condition of refrigeration:Outlet water temperature of chilled water is 7℃and calculate the water flow according to "nominal refrigerating capacity"x 0.172㎡/(h.kW); inlet water temperature of cooling water is 30 C and calculate the water flow according to "nominal refrigerating capacity"x 0.215㎡(h.kW);

2. Working condition of heat recovery: Inlet-outlet water temperature of heat recovery is 45/50℃ outlet water temperature of chilled water is 7℃; water flow is same with the chilled water flow under nominal working condition of refrigeration; the unit supplies hot water at the same time of refrigeration operation, but it cannot supply hot water only;

3. The outlet water temperature of chilled water is 5-15℃and that of heat recovery is 35-60 ℃; the fouling coefficient of evaporator water side is 0.018m2℃/kW and that of condenser water side is 0.44㎡.℃/kW;

4. For more detailed information including unit dimension, weight, and wiring etc., please refer to more specific large sample.

Screw Water-cooled Chiller

Technical Parameters for Screw Water-cooled Chiller (R134a)

Basic type			SLB400J	SLB450J	SLB500J	SLB550J	SLB600J	SLB670J	SLB740J	SLB800J	SLB870J	SLB920J	SLB980J	SLB1050J
Total heat recovery type			SLB400HJ	SLB450HJ	SLB500HJ	SLB550HJ	SLB600HJ	SLB670HJ	SLB740HJ	SLB800HJ	SLB870HJ	SLB920HJ	SLB980HJ	SLB1050HJ
Nominal working condition of refrigeration	Nominal refrigerating capacity	kW	401	454	500	555	602	679	735	809	873	925	985	1055
	Nominal refrigerating capacity	104kcal/h	34.5	39.0	43.0	47.7	51.8	58.4	63.2	69.6	75	80	85	91
	Rated power	kW	71	80	87	97	104	116	128	141	153	161	171	183
	COP	kW/kW	5.65	5.68	5.75	5.72	5.79	5.85	5.74	5.74	5.71	5.75	5.76	5.77
Power supply		--	3/N/PE AC380/220V 50Hz
Safety protection		--	High/low-pressure，oil level，safety valve，water cut-off delay，anti-freezing，motor overload，open-phase and phase sequence
Comp-pressor	Type	--	Semi-hermetic screw type/25%-100% stepless adjustment									Semi-hermetic screw type/12.5%-100% stepless adjustment
Comp-pressor	Qty	set	1									2
Evaporator	Type	--	Falling film type (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	69	78	86	95	104	117	126	139	150	159	169	181
	Water resistance	kPa	56	56	58	58	59	59	60	60	60	60	60	60
Condenser	Type	--	Horizontal shell and tube type (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	86	98	108	119	129	146	158	174	188	199	212	227
	Water resistance	kPa	62	62	63	64	64	65	65	66	66	66	66	66
Total heat recovery type (optional)	Heat recovery refrigerating capacity	kW	321	363	400	444	482	543	588	647	699	741	788	844
	Heat recovery Qty	kW	418	472	518	576	623	701	762	839	909	965	1030	1101
	Heat recovery power	kW	97	109	118	132	141	158	174	192	210	224	242	257
	Heat recovery water flow	m3/h	72	81	89	99	107	121	131	144	156	166	177	189
	Heat recovery water resistance	kPa	56	56	57	58	58	59	59	60	60	60	60	60
Refrigerant R134a charge Qty	Basic type	kg	140	148	152	158	170	175	180	185	240	250	255	260
Refrigerant R134a charge Qty	Total heat recovery type	kg	154	163	167	174	187	193	198	204	270	280	290	290

Basic type			SLB1150J	SLB1230J	SLB1330J	SLB1420J	SLB1530J	SLB1600J	SLB1720J	SLB1850J	SLB2050J	SLB2200J	SLB2350J	SLB2500J
Total heat recovery type			SLB1150HJ	SLB1230HJ	SLB1330HJ	SLB1420HJ	SLB1530HJ	SLB1600HJ	SLB1720HJ	SLB1850HJ	SLB2050HJ	SLB2200HJ	SLB2350HJ	SLB2500HJ
Nominal working condition of refrigeration	Nominal refrigerating capacity	kW	1154	1233	1332	1422	1531	1605	1724	1853	2040	2202	2350	2490
	Nominal refrigerating capacity	104kcal/h	99	106	115	122	132	138	148	159	175	189	202	214
	Rated power	kW	200	212	228	243	263	276	296	318	349	375	400	422
	COP	kW/kW	5.77	5.82	5.84	5.85	5.82	5.82	5.82	5.83	5.85	5.87	5.88	5.90
Power supply		---	3/N/PE AC380/220V 50Hz
Safety protection		---	High/low-pressure,oil level,safety valve,water cut-off delay,anti-freezing,motor overload,open-phase and phase sequence
Compressor	Type	---	Semi-hermetic screw type/12.5%-100% stepless adjustment
Compressor	Qty	set	2
Evaporator	Type	---	Falling film type (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	198	212	229	245	263	276	297	319	351	379	404	428
	Water resistance	kPa	62	62	62	65	65	65	70	70	71	71	72	72
Condenser	Type	---	U-type dry shell and tube (designed bearing water pressure of 1.0MPa)
	Water flow	m3/h	248	265	286	306	329	345	371	398	439	473	505	535
	Water resistance	kPa	70	70	70	70	72	72	75	75	76	76	77	77
Total heat recovery type (optional)	Heat recovery refrigerating capacity	kW	924	987	1066	1136	1219	1285	1380	1483	1632	1761	1880	1992
	Heat recovery Qty	kW	1195	1274	1372	1458	1556	1662	1783	1911	2105	2271	2426	2566
	Heat recovery power	kW	271	287	306	322	337	377	403	428	473	510	546	574
	Heat recovery water flow	m3/h	206	219	236	251	268	286	307	329	362	391	417	441
	Heat recovery water resistance	kPa	66	66	66	66	70	70	72	72	73	73	73	73
Refrigerant R134a charge Qty	Basic type	kg	270	280	290	300	310	315	320	335	420	430	450	460
Refrigerant R134a charge Qty	Total heat recovery type	kg	300	310	330	340	350	360	360	380	460	475	490	500

Note:

1. Nominal working condition of refrigeration: Outlet water temperature of chilled water is 7 ℃and calculate the water flow according to "nominal refrigerating capacity"x 0.172㎡/(h.kW); inlet water temperature of cooling water is 30℃and calculate the water flow according to "nominal refrigerating capacity"x 0.215㎡(h.kW);

2. Working condition of heat recovery:Inlet-outlet water temperature of heat recovery is 45/50 ℃; outlet water temperature of chilled water is 7℃; water flow is same with the chilled water flow under nominal working condition of refrigeration; the unit supplies hot water at the same time of refrigeration operation, but it cannot supply hot water only;

3. The outlet water temperature of chilled water is 5-15℃and that of heat recovery is 35-60℃; the fouling coefficient of evaporator water side is 0.018 m2℃/kW and that of condenser water side is 0.44m2.℃/kW;

4. For more detailed information including unit dimension, weight, and wiring etc., please refer to more specific large sample.

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