Water-Cooled Screw Chiller

Industrial chiller with semi-hermetic screw compressor

Cooling capacity: 30 ton to 1000 ton
Refrigerant: R22/R407C (standard), R134A/R513A (optional)
Power source: 3Ph 380V~415V 50Hz/60Hz
Compressor: semi-hermetic screw compressor (brand options: Bitzer, Hanbell, Refcomp, etc.)
Chilled water temperature range: +5°C to +35°C (adjustable temperature)
Temperature control accuracy: ±1°C to 2°C (adjustable)
Inverter or soft start (optional)
Min. dimensions (L×W×H): 3240×850×1340mm

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Features

These compressors utilize semi-hermetic screw compressors from renowned brands such as Hanbell, Refcomp, and Bitzer. The 5:6 rotor design delivers 20-30% higher efficiency than standard models and enables smooth, stepless capacity modulation.
They perform exceptionally well under full load, are well-suited for sustained high-load operation, and offer significant energy savings under steady-state conditions.
The microcomputer controller maintains temperature stability with high precision and also provides remote monitoring and self-diagnostic capabilities. Selected models can integrate the Internet of Things and big data to help operators track and optimize performance.

The evaporator and condenser use inner-grooved copper tubes, corrugated tubes or trapezoidal tubes to improve heat transfer. Some models use flooded evaporators to increase the heat exchange area and improve cooling stability.
Protective devices are included to prevent high and low pressure, overload, freezing, and compressor overheating. Some models also feature a safety valve and fusible plug for added protection during long-term operation.
These chillers boast a COP exceeding 4.5, ensuring high efficiency and low noise levels due to water cooling. Heat recovery options are also available for optimal energy utilization.

Technical Specifications

Water-Cooled Screw Chiller (Single Compressor)

Model (HTS-***)				40W	50W	60W	80W	90W	120W	135W	170W	200W	240W	280W	300W
Nominal cooling capacity		7℃	kcal/h	102770	134848	144910	193844	228416	268664	314674	399384	496736	578436	677680	764540
			kW	119.5	156.8	168.5	225.4	265.6	312.4	365.9	464.4	577.6	672.6	788	889
		12℃	kcal/h	122980	161422	173376	231942	273308	321554	376594	477988	594518	692386	811066	915126
			kW	143	187.7	201.6	269.7	317.8	373.9	437.9	555.8	691.3	805.1	943.1	1064.1
Input power			kW	30.3	38	41.9	54,8	62.1	72.1	86.2	105.6	133	151.6	178.6	206.8
Power source				3Ph 380V~415V 50Hz/60Hz
Refrigerant	Type			R22/R407C
	Charge		kg	22	27	33	42	48	55	68	88	110	121	143	165
	Control			Thermostatic expansion valve
Comperssor	Type			Semi-hermetic screw compressor
	Power		kW	30.3	38	41.9	54.8	62.1	72.1	86.2	105.6	133	151.6	178.6	206.8
	Start mode			Y-△
	Capacity control		%	0-25-50-75-100
Evaporator	Type			Shell and tube evaporator/SS plate heat exchanger
	Chilled water volume (7℃)		m³/h	20.5	26.1	29.5	39.5	45.6	49.7	62.4	81	98	115	135.7	153
	Water pressure drop		kPa	32	35	38	42	42	45	40	43	45	45	43	47
	Pipe connection		inch	3	3	3	3	3	4	4	5	6	6	6	8
Condenser	Type			Shell and tube condenser
	Cooling water volume		m³/h	25	32.3	36.6	49.2	56	61.7	77	101	125	125	170	191
	Water pressure drop		kPa	42	42	43	43	43	45	48	46	48	48	45	47

	Pipe connection		inch	3	3	3	3	3	4	4	6	6	6	6	8
Safety devices				Compressor internal protection Overcurrent protection High/low pressure protection Over temperature protection Flow rate protection Phase sequence/phase missing protection Low level coolant protection Anti-freezing protection Exhaust overheat protection
Dimensions	Length		mm	3240	2550	2550	3040	3030	3045	3550	3550	3605	3900	4300	4500
	Width		mm	850	920	1070	980	1050	1060	1110	1185	1300	1380	1480	1480
	Height		mm	1340	1480	1390	1800	1765	1765	1765	1820	1955	1750	1780	1780
Net weight			kg	900	1050	1200	1800	1900	2050	2500	2650	3150	3350	3850	4160
Running weight			kg	1050	1200	1350	1980	2150	2250	2700	2900	3400	3650	4150	4460

The data above is based on the following operating conditions:

Chilled water inlet/outlet temperatures: 12℃/7℃
Cooling water inlet/outlet temperatures: 30℃/35℃

Note: For units using R407C refrigerant, the cooling capacity is about 5% lower compared to R22 models.
We reserve the right to modify the specifications without further notice.

Water-Cooled Screw Chiller (Dual Compressors)

Model (HTS-***)				100WD	120WD	160WD	180WD	240WD	270WD	300WD	340WD	400WD	480WD	520WD	560WD	600WD
Nominal cooling capacity		7℃	kcalh	269696	289820	387688	482632	537328	629348	764196	798968	993472	1156872	1245280	1355360	1529080
			kW	313.6	337	450.8	561.2	624.8	731.8	888.6	928.8	1155.2	1345.2	1448	1576	1778
		12℃	kcal/h	322844	346752	463884	577576	643108	753188	914696	955976	1189036	1384772	1490380	1622132	1830252
			kW	375.4	403.2	539.4	671.6	747.8	875.8	1063.6	1111.6	1382.6	1610.2	1733	1886.2	2128.2
Input power			kW	76	83.8	109.6	132.2	144.2	172.4	206.4	211.2	266	303.2	327	357.2	403.6
Power source				3Ph 380V-415V 50Hz/60Hz
Refrigerant	Type			R22/R407C
	Charge			27×2	33×2	42×2	48×2	55×2	68×2	77×2	88×2	110x2	121×2	132x2	143×2	165×2
	Control			Thermostatic expansion valve
Compressor	Type			Semi-hermetic screw compressor
	Power		kW	38×2	41.9×2	54.8×2	66.1×2	72.1×2	86.2×2	103.2×2	105.6×2	133x2	151.6×2	163.5×2	178.6×2	201.8x2
	Start mode			Y-△
	Capacity control		%	0-25-50-75-100
Evaporator	Type			Shell and tube evaporator
	Chilled water volume (7℃)		m³/h	52.2	59	79	91.2	99.4	124.8	151.6	162	169	231.4	254	271.4	306
	Water pressure drop		kPa	42	42	46	43	45	45	43	48	44	45	42	45	46
	Pipe connection		inch	4	4	5	6	6	6	8	8	8	8	10	10	10
Condenser	Type			Shell and tube condenser
	Cooling water volume		m³/h	64.6	73.2	98.4	112	123.4	154	191	202	248	290	318	340	382
	Water pressure drop		kPa	41	42	42	45	48	46	48	48	46	42	48	48	48
	Pipe connection		inch	3×2	3×2	3×2	3×2	4×2	4×2	4×2	5×2	5×2	5×2	6×2	6×2	6×2
Safety devices				Compressor internal protection Overcurrent protection High/low pressure protection Over temperature protection Flow rate protection Phase sequence/phase missing protection Low level coolant protection Anti-freezing protection Exhaust overheat protection
Dimensions	Length		mm	2800	2950	3150	3480	3480	3650	3650	3750	4230	4230	4350	4350	4420
	Width		mm	780	810	850	875	895	1120	1220	1300	1380	1480	1450	1560	1650
	Height		mm	1650	1650	1750	1850	1850	1950	1950	2100	2150	2250	2250	2300	2450
Net weight			kg	1850	2200	2650	2800	3450	3950	4100	4450	5000	5250	5500	5750	6000
Running weight			kg	2150	2500	2970	3400	4160	4350	4700	5050	5700	5950	6100	6350	6600

The data above is based on the following operating conditions:

Chilled water inlet/outlet temperatures: 12°C/7°C
Cooling water inlet/outlet temperatures: 30℃/35℃

Note: For units using R407C refrigerant, the cooling capacity is about 5% lower compared to R22 models.
We reserve the right to modify the specifications without further notice.

Water-Cooled Screw Chiller (Four Compressors)

Model (HTS-***)				320WF	360WF	440WF	540WF	680WF	760WF	960WF	1040WF	1120WF	1200WF
Nominal cooling capacity		7℃	kcal/h	775376	913664	1074656	1258696	1597536	1913328	2313744	2490560	2710720	3058160
			kW	901.6	1062.4	1249.6	1463.6	1857.6	2224.8	2690.4	2896	3152	3556
		12℃	kcal/h	927768	1093232	1286216	1506376	1911952	2289664	2769544	2980760	3244264	3660504
			kW	1078.8	1271.2	1495.6	1751.6	2223.2	2662.4	3220.4	3466	3772.4	4256.4
Input power			kW	219.2	248.4	288.4	344.8	422.4	508.4	606.4	654	714.4	807.2
Power source				3Ph 380V-415V 50Hz/60Hz
Refrigerant	Type			R22/R407C
	Charge		kg	42×4	48×4	55×4	68×4	88×4	108×4	121×4	132×4	143×4	165×4
	Control			Thermostatic expansion valve
Compressor	Type			Semi-hermetic screw compressor
	Power		kW	54.8×4	62.1×4	72.1×4	86.2×4	105.6×4	127.1×4	151.6×4	163.5×4	178.6×4	201.8×4
	Start mode			Y-△
	Capacity control		%	0-25-50-75-100
Evaporator	Type			Shell and tube evaporator
	Chilled water volume (7℃)		m³/h	158	182.4	198.8	249.6	324	382.8	462.8	508	542.8	612
	Water pressure drop		kPa	46	43	45	45	48	43	45	42	45	46
	Pipe connection		inch	8×2	8×2	10×2	10×2	10×2	10×2	12×2	12×2	8×4	8×4
Condenser	Type			Shell and tube condenser
	Cooling water volume		m³/h	196.8	224	246 8	308	404	476	580	636	680	764
	Water pressure drop		kPa	42	45	48	46	48	45	42	48	48	48
	Pipe connection		inch	5×2	5×2	6×2	6×2	8×2	4×4	4×4	6×4	6×4	6×4
Satety devices				Compressor internal protection Overcurrent protection High/low pressure protection Over temperature protection Flow rate protection Phase sequence/phase missing protection Low level coolant protection Anti-freezing protection Exhaust overheat protection
Dimensions	Length		mm	3150	3480	3480	3650	3750	3750	4230	4350	4350	4420
	Width		mm	1700	1750	1790	2240	2600	2900	2960	2900	3300	3300
	Height		mm	1750	1850	1850	1950	2100	2150	2250	2250	2300	2450
Net weight			kg	2650	2800	3450	3950	4450	4700	5250	5500	5750	6000
Running weight			kg	3200	3380	4160	4760	5270	5460	6100	6400	6680	6970

The data above is based on the following operating conditions:

Chilled water inlet/outlet temperatures: 12°C/7°C
Cooling water inlet/outlet temperatures: 30℃/35℃

Note: For units using R407C refrigerant, the cooling capacity is about 5% lower compared to R22 models.
We reserve the right to modify the specifications without further notice.

Typical Applications

Industrial Sector

Chemical & pharmaceutical: Ideal for controlling temperatures in reactors, keeping crystallisation processes stable, and ensuring precise conditions during drug production.
Plastics processing: Maintains the right mould temperatures in injection and extrusion lines, which speeds up production and improves surface quality.
Electronics manufacturing: Helps dissipate heat from laser cutting machines and semiconductor equipment, safeguarding sensitive parts.
Metal Processing: Supports cooling in electroplating and heat treatment, reducing thermal stress while prolonging equipment life.

Commercial Sector

It is suitable to ensure consistent year-round cooling for large-scale spaces like shopping malls, CBD complexes, and luxury hotels.
Water-cooled screw chillers keep temperatures steady in cold rooms and refrigerated cabinets to preserve the freshness of food and pharmaceuticals.

Special Applications

Medical & laboratory: Used in MRI scanner cooling and in PCR laboratories to maintain controlled environments, ensuring precise temperature stability and vibration-free operation.
New energy & automotive: Suitable to handle cooling needs for battery manufacturing lines and casting processes in vehicle production.

Data Centers & Power Sector

Supercomputing centers: Used to supply uninterrupted cooling for high-density server cabinets in data-heavy environments.
Power plants: Regulates the temperature of turbine lubrication oil and provides cooling for control room HVAC systems.

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How to choose between an air-cooled chiller and a water-cooled chiller?

Air-cooled chillers adapt well to a wide range of operating conditions. They are easier to install, require less maintenance, and can be used in many applications. However, for the same cooling capacity, their material cost is usually higher compared to water-cooled models.

Water-cooled chillers are more suitable when there is a stable water supply, good water quality, and ambient temperatures below 45 °C. They generally offer better cooling performance, lower energy consumption, and quieter operation. Their overall cost can be slightly lower, but installation is more complex as they require a cooling tower and water pump. Cleaning and servicing the shell-and-tube condenser also calls for trained technicians.

Which type of chiller is recommended for areas with limited water availability?

In regions where water supply is scarce or inconvenient to access, air-cooled chillers are the best option. They do not require an external cooling tower, making installation more flexible and maintenance simpler, while still providing reliable cooling performance.

What type of chiller is most suitable for data centers?

Data centers require cooling equipment that can operate year-round, deliver precise temperature control, and maximize energy efficiency. Variable-frequency centrifugal chillers and magnetic bearing centrifugal chillers are the best options fo data centers, as they can maintain stable room temperatures with a precision of ±0.5 °C while offering superior energy-saving performance.

What type of industrial cooling equipment is suitable for plastic manufacturing?

In plastic manufacturing, precise temperature control and high heat exchange efficiency are important to ensure consistent product quality. Falling film screw chillers are an excellent option, offering temperature control accuracy of up to ±0.3°C. This precision helps maintain the molding quality of optical-grade plastics while delivering outstanding cooling performance.