Water Cooled Screw Chiller, 200kW~2200kW

This product has been discontinued and removed from our shelves.

Application

The water cooled screw chiller is designed and manufactured for cooling and heat recovery applications in large residential and commercial structures such as malls, office buildings, hotels, and hospitals.

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Parameters

Cooling tower condition, R22 type water cooled screw chiller

Model			200W	240W	280W	320W	380W	460W	500W	580W	700W	820W	940W	1100W
Cooling capacity		KW	198	246	281	317	379	452	503	577	704	817	934	1066
Input power		KW	41	52	59	63	75	90	98	110	136	154	172	195
Power supply			380V / 3PH / 50HZ						380V / 3PH / 50HZ
Energy control			25% ~ 100%						25% ~ 100%
Compressor	Type		Semi Hermeic Screw Type						Semi Hermeic Screw Type
	Qty		1						1
	Start model		Y-△						Y-△
	Refrigerant	Type	R22 /R407c						R22 /R407c
		Charge(kg)	34	49	56	60	62	74	81	92	111	128	145	164
		Control	EXV						EXV
Evaporator	Type		Shell & Tube						Shell & Tube
	Pressure drop	KPa	70 ~ 90						70 ~ 90
	Pipe connection size (DN)		80	100	100	100	100	125	125		150
	Water in/out temp.	℃	12/7						12/7
	Cooled water flow	m³/h	33.4	42.3	48.3	54.5	65	77	86	99	121	140	161	183
Condenser	Type		Shell & Tube						Shell & Tube
	Pressure drop	KPa	70 ~ 90						70 ~ 90
	Pipe connection size (DN)		80	100	100	100	100	125	125		150
	Water in/out temp.	℃	30/35						30/35
	Cooling water flow	m³/h	41.7	51.3	58.5	66	78	93	103	118	145	167	190	217
Structure			Vertical						Vertical	Horizontal
Dimension	L	mm	2500	2500	2500	3050	3050	3050	3050	3440	3440	3440	3440	3480
	W	mm	1120	1120	1120	1120	1120	1120	1120	1220	1340	1340	1340	1340
	H	mm	1920	1920	1920	1920	1920	2000	2000	1620	1650	1650	1650	1680
Net weight		KG	1560	1650	1750	1750	1750	2370	2760	2880	3400	3500	3780	4250
Running weight		KG	1660	1750	1870	1950	1950	2570	3000	3100	3700	3850	4050	4600
Protection measures			1.High &low voltage protection; 2.Anti-freezing protection; 3.Temperature control; 4.Power anti-phase protection; 5.High & low pressure protection; 6.High pressure exhaust temperature protection; 7.Built-in motor overheating protection; 8.Over-current protection; 9. Safe valve; 10.Check valve

Notes:
1. Maximum bearing pressure at water side is 1MPa.
2. Both total and partial heat recovery are optional.
3. Different power supplies are optional.

Cooling tower condition, R134a type water cooled screw chiller

No. Model				200W	240W	280W	320W	380W	440W	500W	540W	680W	480W	560W	640W	760W	880W	1000W	1200W	1360W
Cooling capacity		KW		196	243	271	310	373	430	493	540	685	486	535	621	746	850	986	1081	1371
Input power		KW		44.6	53	59	67	79	87	98	108	134	105	119	133	158	175	196	216	267
Power supply				380V / 3PH / 50HZ									380V / 3PH / 50HZ
Energy control				25% ~ 100%									25% ~ 100%
Compressor	Type			Semi Hermeic Screw Type									Semi Hermeic Screw Type
	Qty			1									2
	Start model			Y-△									Y-△
	Refrigerant	Type		R134a									R134a
		Charge(kg)		35	41	45	51	61	68	79	85	107	82	90	102	122	136	158	170	214
		Control		EXV									EXV
Evaporator	Type			Shell & Tube									Shell & Tube
	Pressure drop	KPa		70 ~ 90									70 ~ 90
	Pipe connection size (DN)			100	100	100	100	100	100	125	125	150	125	125	150	150	150	150	200	200
	Water in/out temp.		℃	12/7									12/7
	Cooled water flow		m³/h	29.2	42	46	53	64	73	85	93	118	84	92	107	128	146	170	186	236
Condenser	Type			Shell & Tube									Shell & Tube
	Pressure drop	KPa		70 ~ 90									70 ~ 90
	Pipe connection size (DN)			100	100	100	100	100	100	125	125	150	125	125	150	150	150	150	200	200
	Water in/out temp.		℃	30/35									30/35
	Cooling water flow		m³/h	35.9	51	56	65	78	88	102	112	141	102	112	130	155	176	203	223	282
Structure				Vertical				Horizontal					Vertical			Horizontal
Dimension	L	mm		2500	3480	3480	3050	3480	3480	3480	3480	3480	4550	4550	4550	4550	4550	4550	4550	4550
	W	mm		1000	1300	1300	1150	1300	1340	1340	1340	1340	1200	1200	1200	1500	1500	1500	1500	1620
	H	mm		1600	1600	1600	1930	1600	1680	1680	1680	1680	2000	2100	2150	1770	1820	1850	1850	1920
Net weight		KG		1650	1800	2450	2850	2950	3500	3600	3900	4360	4380	4580	4720	5380	5420	5920	6450	7150
Running weight		KG		1850	1950	2600	3020	3120	3650	3750	4100	4560	4500	4800	4950	5620	5660	6220	6750	7500
Protection measures				1.High &low voltage protection; 2.Anti-freezing protection; 3.Temperature control; 4.Owe anti-phase protection; 5.High & low pressure protection; 6.High pressure exhaust temperature protection; 7.Built-in motor overheating protection; 8.Over-current protection; 9. Safe valve; 10.Check valve

Notes:
1. Maximum bearing pressure at water side is 1MPa.
2. Both total and partial heat recovery are optional.
3. Different power supplies are optional.

Cooling tower condition, Flooded R22 type water cooled screw chiller

No. Model			400W	500W		560W		640W		760W		920W		1100W		1200W		800W	1000W	1120W	1280W	1520W	1840W	2200W	2400W
Cooling capacity		KW	402	487		561		637		747		910		1044		1190		804	974	1122	1274	1493	1820	2087	2381
Input power		KW	74	87		98		114		128		155		175		197		149	174	196	228	256	311	349	394
Power supply			380V / 3PH / 50HZ															380V / 3PH / 50HZ
Energy control			25% ~ 100%															25% ~ 100%
Compressor	Type		Semi Hermeic Screw Type															Semi Hermeic Screw Type
	Qty		1															2
	Start model		Y-△															Y-△
	Refrigerant	Type	R22 /R407c															R22 /R407c
		Charge(kg)	66		80		90		101		118		142		162		183	132	160	180	202	236	284	324	366
		Control	EXV															EXV
Evaporator	Type		Shell & Tube															Shell & Tube
	Pressure drop	KPa	70 ~ 90															70 ~ 90
	Pipe connection size (DN)		100		100		125		125		150		150		150		150	150	150	150	200	200	200	250	250
	Water in/out temp.	℃	12/7															12/7
	Cooled water flow	m³/h	69		84		97		110		128		157		180		205	138	168	193	219	257	313	359	410
Condenser	Type		Shell & Tube															Shell & Tube
	Pressure drop	KPa	70 ~ 90															70 ~ 90
	Pipe connection size (DN)		100		100		125		125		150		150		150		150	150	150	150	200	200	200	250	250
	Water in/out temp.	℃	30/35															30/35
	Cooling water flow	m³/h	82		99		113		129		150		183		210		239	164	198	227	258	301	366	419	477
Structure			Vertical															Vertical
Dimension	L	mm	3400		3400		3400		3400		3400		3400		3400		3400	4100	4200	4200	4200	4460	4950	5150	5200
	W	mm	1320		1400		1400		1460		1650		1650		1720		1720	1500	1550	1550	1650	1750	1750	1750	1900
	H	mm	1650		1680		1680		1700		1810		1810		1850		1850	1820	1860	1860	1900	1970	1970	1970	2020
Net weight		KG	1800		2450		2850		2950		3500		3600		3900		4360	4380	4580	4720	5380	5420	5920	6450	7150
Running weight		KG	1950		2600		3020		3120		3650		3750		4100		4560	4500	4800	4950	5620	5660	6220	6750	7500
Protection measures			1.High &low voltage protection; 2.Anti-freezing protection; 3.Temperature control; 4.Owe anti-phase protection; 5.High & low pressure protection; 6.High pressure exhaust temperature protection; 7.Built-in motor overheating protection; 8.Over-current protection; 9. Safe valve; 10.Check valve

Notes:
1. Maximum bearing pressure at water side is 1MPa.
2. Both total and partial heat recovery are optional.
3. Different power supplies are optional.

Cooling tower condition, Flooded R134a type water cooled screw chiller

No. Model			260W	300W	340W	400W	460W	560W	600W	760W	520W	600W	680W	800W	920W	1120W	1200W	1520W
Cooling capacity		KW	267	294	342	411	468	543	595	755	535	589	683	821	936	1086	1190	1510
Input power		KW	52	59	66	78	87	97	107	132	104	118	132	156	173	194	214	265
Power supply			380V / 3PH / 50HZ								380V / 3PH / 50HZ
Energy control			25% ~ 100%								25% ~ 100%
Compressor	Type		Semi Hermeic Screw Type								Semi Hermeic Screw Type
	Qty		1								2
	Start model		Y-△								Y-△
	Refrigerant	Type	R134a								R134a
		Charge	45	49	56	67	75	86	94	118	90	98	112	134	150	172	188	236
		(kg)
		Control	EXV								EXV
Evaporator	Type		Shell & Tube								Shell & Tube
	Pressure drop	KPa	70 ~ 90								70 ~ 90
	Pipe connection size (DN)		100	100	100	100	100	125	125	150	125	125	150	150	150	150	200	200
	Water in/out temp.	℃	12/7								12/7
	Cooled water flow	m³/h	46	51	59	71	81	93	102	130	92	101	118	141	161	187	205	260
Condenser	Type		Shell & Tube								Shell & Tube
	Pressure drop	KPa	70 ~ 90								70 ~ 90
	Pipe connection size (DN)		100	100	100	100	100	125	125	150	125	125	150	150	150	150	200	200
	Water in/out temp.	℃	30/35								30/35
	Cooling water flow	m³/h	55	61	70	84	95	110	121	153	110	122	140	168	191	220	242	305
Structure			Vertical								Vertical
Dimension	L	mm	3400	3400	3400	3400	3400	3400	3400	3400	4100	4200	4200	4200	4460	4950	5150	5200
	W	mm	1320	1400	1400	1460	1650	1650	1720	1720	1500	1550	1550	1650	1750	1750	1750	1900
	H	mm	1650	1680	1680	1700	1810	1810	1850	1850	1820	1860	1860	1900	1970	1970	1970	2020
Net weight		KG	1800	2450	2850	2950	3500	3600	3900	4360	4380	4580	4720	5380	5420	5920	6450	7150
Running weight		KG	1950	2600	3020	3120	3650	3750	4100	4560	4500	4800	4950	5620	5660	6220	6750	7500
Protection measures			1.High &low voltage protection; 2.Anti-freezing protection; 3.Temperature control; 4.Owe anti-phase protection; 5.High & low pressure protection; 6.High pressure exhaust temperature protection; 7.Built-in motor overheating protection; 8.Over-current protection; 9. Safe valve; 10.Check valve

Notes:
1. Maximum bearing pressure at water side is 1MPa.
2. Both total and partial heat recovery are optional.
3. Different power supplies are optional.

Features
Compressor a. Semi-closed dual screw design. Compressed parts are composed of two intermeshing rotors, designed to minimize vibration. The screw design leads to high efficiency and smooth air flow through the process of intake, compression and exhaust.
b. The equipment does not need to be manually lubricated.
c. The compressor's volume control system can easily perform partial load operation. The compressor can achieve 25%-100% sectional adjustment or non-sectional energy adjustment to be fully compatible with building loads.

Advantages
Moving components are only 1/4 of that of piston compressors. Vulnerable parts are minimized and the inhale and exhaust processes are smooth and continuous without pulse phenomenon. The equipment is not sensitive to wet compression and is highly resistant to strong liquid impact.
Shell and tube type heat exchanger Shell: pressure vessels are constructed form high-quality steel plate. Its manufacture and testing meets JB/T4750-2003 ‘Pressure Vessel for Refrigeration Equipment' standards. Exterior surface features flame-retardant water-proof heat-insulation and preservation materials. The evaporator baffle plate adopts PVC engineering plastic which has excellent corrosion resistance and good air impermeability to make the cooling water flow upwards and downwards along the baffle plate. This improves the heat exchange capacity of the evaporator.

The refrigerant inlet is equipped with a flow-equalizing device in order to uniformly distribute the refrigerant in the heat exchanger's copper tube. This improves the heat exchange efficiency of the whole unit.

The DAC corrugated inner grooved heat exchange tube is made from copper, improving its efficiency. The power side heat exchange capacity for refrigerant improves the cooling and heating effects of the unit.
Expansion valve The electronic expansion valve control system can reach a control accuracy up to 2600 steps. According to suction superheating and saturation pressure, combined with the electronic control system, we can precisely control the refrigerant flow, so as to ensure the unit is always in best running condition and the maximum capacity can be achieved. The adoption of highly efficient heat exchange tubes improves energy efficiency and effectiveness.

Distribution control cabinet The distribution control cabinet is composed of compressor starting equipment, a power protector and a micro-computerized controller. The micro-computerized controller can run stably and safely under a temperature range of -15℃ to 65℃. It is equipped with a RS-232 and RS-485 standard communication interface. It can receive a remote signal for starting up and shutting down.

Micro-computerized controller The cold water temperature can be set and displayed. Automatic energy control and startup and shutdown functions are available. The machine is operated through touch screen. The magnitude of the current (optional), running status, warning status and running time of compressor are displayed. The unit can automatically re-start after power recovery from power failure. Password protection function.

Safety equipment High and low voltage switch, anti-freezing temperature control, lube oil heater, high-pressure exhaust check valve, replaceable filter element dry filter, piezometer, emergency stop switch, overload protector, power protector, refrigerant injector.