Water Chillers for Air Conditioning

• Type: Water-Cooled
• Cooling Method: Water-cooled
• Unit Structure: Integral
• Selected Voltage: 380V/50HZ
• Compressor Number: 1
• Noise Level: Low
• Model NO.: SW-620S
• Application Fields: Plastic/Food/Hotel/Construction Industry
• Application Machine: Machining Center
• Certification: RoHS, UR, UL, CE
• Condition: New
• Model: Sw-620s
• Cooling Capacity: 620kw
• Refrigerant: R22/R134A/R407c/R410A/R507/R404
• Compressor Type: Screw
• Evaporator: Shell and Tube Heat Exchanger
• Condenser: Shell and Tube Heat Exchanger
• Water Inlet Temp.: 12 Degree C
• Water Outlet Temp.: 7 Degree C
• Energy Regulation: 0-33%-66%-100%
• Touch Screen: Bangpu or PLC
• Transport Package: Plywood Case/ Wooden Package
• Specification: SW-620S
• Trademark: Shenglin
• Origin: Shanghai, China
• HS Code: 8418692090
• Production Capacity: 5000 Units Chiller

Product Description

Product options

1. Salt water evaporatoStepless energy regulation

1. Pump/Cooling tower control
2. Special power supply
3. Remote communication connector

Products Features
1. Twin screw compressor brand is employed, with high efficiency, low noise level, less wearing and long operation time.

1. Four stage volume control or 0%-100% automatic regulation.
2. Use PLC microcomputer control from Germany SIEMENS. LCD touch screen, both English and Chinese human-machine interface.
3. Complete breakdown protection: high and low pressure protection, air discharge protection, oil level protection, water flow protection, reverse and lack phase protection, chilled water anti-freezing protection, cooling water overheat protection.
4. Wide range of variable chilled water temperature to meet the low temperature industrial requirements.

Product specification
Refrigerant: R22/R407C
Evaporator max water pressure drop: 1.0Mpa
Evaporator: fouling factor 0.018m².ºC/KW
Condenser: fouling factor 0.044m².ºC/KW
Power supply: 380V/3P/50Hz
Allowable voltage fluctuate: ±5%
Allowable frequency fluctuate: ±2%

Compressor
Select semi-closed 5:6 asymmetric twin-screw compressor from world-renowned brand. The possibility of shaft seal leakage is zero. Using a rotating exhaust design, the latest development of the fourth generation line, optimize the circumference speed, excellent design of gear so that the unit has higher compression efficiency. Motor chamber compression chamber integrally cast, high precision. Double pressure compensated rotor housing, very strong, no expansion even in the state of high pressure, and it effectively reduces the noise.

Heat exchanger
The condenser and evaporator of this series unit adopts shell and tube heat exchanger, using new high efficient heat exchanger structure. Heat exchanger adopts the most advanced and efficient heat exchanger tube bundle with unique geometric characteristics and enhanced tube nucleate boiling required vaporization core, strengthen the fluid in the tube and delay perturbation at the same time, the water side fouling, heat transfer enhancement, the inside wall in order to get the best performance, compared to the previous design, the unique design of the heat transfer efficiency is increased by 30%.

Evaporator evaporation tube with inner grooved on outer concave tooth enhanced heat transfer technology, condenser tube with inner grooved cutter teeth technology, improves the evaporator and condenser heat transfer efficiency and the evaporation temperature, and improve the energy efficiency ratio for the unit.

PLC
A good Chinese-English interactive interface is to achieve automatic control function before the LCD display real-time statues of the machine work, precise monitoring unit operating at optimal state, the touch panel sealed, waterproof, dust-proof,
corrosion-resistant, long-key life. Equipped with cooling pumps, cooling water pumps and cooling tower fan interlock control function.


Water cooled screw chiller(single compressor) technical parameter

SW-
Type		100S	135S	175S	190S	235S	260S	300S	320S	350S	380S
Nominal cooling capacity	kw	98.0	135.0	175.6	191.1	233.3	255.6	301.1	317.8	347.8	380.0
	10^4 kcal/h	8.4	11.6	15.1	16.4	20.1	22.0	25.9	27.3	29.9	32.7
Operating control method	Use PLC microcomputer control
Power Supply	380V/3N/50HZ
Start up type	Y-△
Compressor	Type	Semi-closed 5:6 asymmetric twin-screw compressor
	Input power(kw)	23.0	30.0	39.0	42.0	51.0	56.0	63.0	66.0	73.0	80.0
	Rated current(A)	39.2	51.6	64.7	71.0	86.4	94.1	105.9	111.4	122.7	133.8
	Energy regulation	0-33%-66%-100%			0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m^3/h)	16.9	23.2	30.2	32.9	40.1	44.0	51.8	54.7	59.8	65.4
	Water pressure drop(kPa)	45.0	45.0	48.0	48.0	50.0	50.0	50.0	55.0	55.0	55.0
	Interface size	DN65		DN80		DN100					DN125
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m^3/h)	20.8	28.4	36.9	40.1	48.9	50.0	50.0	55.0	55.0	55.0
	Water pressure drop(kPa)	42.0	42.0	45.0	45.0	48.0	48.0	48.0	52.0	52.0	52.0
	Interface size	DN65		DN80		DN100					DN125
Refrigerant	Type	R22
	Refrigerant volume(kg)	16.0	22.0	25.0	30.0	35.0	40.0	45.0	50.0	53.0	56.0
Overall dimensions	Length(mm)	2450	2450	2700	2850	2850	2850	2850	3250	3250	3250
	Width(mm)	660	660	660	890	890	920	920	920	960	985
	Height(mm)	1450	1590	1590	1600	1690	1690	1690	1690	1750	1750
Weight	Machine weight(kg)	850	1050	1150	1270	1340	1430	1640	1710	1780	1850
	Operating weight(kG)	900	1150	1300	1420	1540	1670	1890	1930	1970	2050

 

SW-
Type		415S	495S	520S	570S	620S	640S	740S	820S	870S	980S
Nominal cooling capacity	kw	415.0	495.0	521.1	571.1	617.8	642.2	741.8	821.1	871.7	981.8
	10^4 kcal/h	35.7	42.6	44.8	49.1	53.1	55.2	64.3	70.6	75.4	84.9
Operating control method	Use PLC microcomputer control
Power Supply	380V/3N/50HZ
Start up type	Y-△
Compressor	Type	Semi-closed 5:6 asymmetric twin-screw compressor
	Input power(kw)	88.0	103.0	108.0	118.0	126.0	130.0	150.0	167.0	177.0	199.0
	Rated current(A)	148.8	172.8	182.5	197.7	212.8	219.6	253.0	280.7	298.1	335.2
	Energy regulation	0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m^3/h)	71.4	85.1	89.6	98.2	106.3	110.5	128.6	141.2	150.8	169.9
	Water pressure drop(kPa)	55.0	58.0	62.0	62.0	68.0	68.0	68.0	70.0	70.0	72.0
	Interface size	DN125				DN150				DN200
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m^3/h)	86.5	102.9	108.2	118.5	127.9	132.8	154.4	170.0	181.2	204.1
	Water pressure drop(kPa)	55.0	58.0	62.0	62.0	68.0	68.0	68.0	70.0	70.0	72.0
	Interface size	DN125		DN150						DN200
Refrigerant	Type	R22
	Refrigerant volume(kg)	60.0	65.0	70.0	80.0	90.0	95.0	110.0	125.0	133.0	145.0
Overall dimensions	Length(mm)	3250	3250	3250	3250	3250	3650	3650	3650	3800	3800
	Width(mm)	1000	1050	1050	1050	1100	1130	1130	1250	1250	1300
	Height(mm)	1750	1752	1770	1770	1770	1870	1870	1870	1870	1950
Weight	Machine weight(kg)	2080	2300	2570	2850	2900	3100	3450	4050	4230	4450
	Operating weight(kg)	2330	2550	2950	3000	3200	3450	3750	4450	4600	4850

1. Cooling condition: Chilled water inlet/outlet temperature 12/7 ºC, cooling water inlet/outlet temperature 30ºC/35ºC
2. Temperature term: Chilled water outlet temperature 5ºC~15ºC; cooling water inlet temperature 19ºC~33ºC.

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Ms. Meiling