Water Cooled Low Temperature Chiller -25 Degree

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Features
Technical Data
Application
Certification
Part List
Reference

Products features

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

2. Four stage volume control or 0%-100% automatic regulation.

3. Use PLC microcomputer control from Germany SIEMENS. LCD touch screen, both English and Chinese human-machine interface.

4. 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.

5. Wider range of variable chilled water temperature to meet the low temperature industrial requirements.

Product options

1. Salt water evaporator

2. Stepless energy regulation

3. Whole heat recovery/partial heat recovery

4. Pump/Cooling tower control

5. Special power supply

6. Remote communication connector

7. Frequency conversion

Product specification

Refrigerant: R22/R407C/R134A/R410A

Evaporator/condenser max water pressure drop: 1.0Mpa

Evaporator: fouling factor 0.018m2.℃/KW

Condenser: fouling factor 0.044m2.℃/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, strengthened the flow disturbance inside the pipe, while delaying the scaling on the water side. The inner and outer walls are enhanced for heat transfer to achieve optimal performance. Compared to previous designs, the current unique design improves heat transfer efficiency 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 optimum state, the touch panel sealed, waterproof, dustproof, corrosion-resistant, long-key life. Equipped with cooling pumps, cooling water pumps and cooling tower fan interlock control function.

Low temperature chillers

SW series of low temperature chillers based on well-known brands as the host semi-hermetic screw compressor, built-in suction filter, oil filter, oil separators, safety valve and protection module, with no leakage, low noise, stable operation.

Low temperature water cooled screw chiller(single compressor) -25℃

SW-
Type		30ST	40ST	50ST	55AT	70ST	75ST	90ST	95ST	100ST	110ST
Nominal cooling capacity	kW	30.0	40.0	52.0	56.0	68.0	75.0	88.5	93.5	102.0	110.0
Nominal cooling capacity	104 kcal/h	2.6	3.4	4.3	4.7	6.0	6.4	7.3	7.7	8.6	9.5
Operating control method	Use PLC microcomputer control
Power Supply	380V/3N/50HZ
Startup type	Y-△
Compressor	Type	Semi-closed 5:6 asymmetric twin-screw compressor
	Input power(kw)	19.5	25.5	32.0	36.5	44.0	48.4	54.4	57.3	63.0	68.8
	Rated current(A)	33.0	43.6	54.6	62.3	75.8	82.6	93.0	97.8	107.7	117.5
	Energy regulation	0-33%-66%-100%			0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m3/h)	6.4	8.5	10.6	11.7	14.8	15.9	18.0	19.1	21.2	23.3
	Water pressure drop(kPa)	48.0	48.0	48.0	50.0	50.0	52.0	52.0	55.0	55.0	55.0
	Interface size	DN50				DN65				DN80
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m3/h)	8.6	11.4	14.1	15.5	19.6	21.0	23.7	24.9	27.7	30.3
	Water pressure drop(kPa)	45.0	45.0	46.0	48.0	48.0	50.0	50.0	53.0	53.0	53.0
	Interface size	DN50		DN65		DN80				DN100
Refrigerant	Type	R22
Refrigerant	Refrigerant volume(kg)	7.7	10.2	14.1	15.4	19.2	20.5	23.0	24.3	26.9	29.4
Overall dimensions	Length(mm)	2450	2450	2700	2850	2710	3010	3250	3250	3250	3250
	Width(mm)	660	660	660	890	990	990	1035	920	960	985
	Height(mm)	1450	1590	1590	1600	1630	1630	1630	1690	1750	1750
Weight	Machine weight(kg)	880	1080	1170	1290	1360	1440	1650	1720	1790	1860
Weight	Operating weight(kg)	1160	1360	1450	1620	1690	1770	1980	2140	2210	2280

SW-
Type		120ST	145ST	155ST	170ST	180ST	190ST	220ST	240ST	260ST	290ST
Nominal cooling capacity	kW	122.0	145.0	153.0	168.0	182.0	187.0	220.0	241.0	258.0	290.0
Nominal cooling capacity	104 kcal/h	10.5	12.5	13.2	14.4	15.6	16.1	18.9	20.7	22.2	24.9
Operating control method	Use PLC microcomputer control
Power Supply	380V/3N/50HZ
Startup type	Y-△
Compressor	Type	Semi-closed 5:6 asymmetric twin-screw compressor
	Input power(kw)	76.5	88.9	93.8	101.7	109.4	112.9	130.0	144.0	153.0	172.0
	Rated current(A)	130.6	151.7	160.2	173.5	186.8	192.8	222.1	246.4	261.7	294.2
	Energy regulation	0-25%-50%-75%-100%
Evaporator	Type	High efficiency dry type shell and tube heat exchanger
	Flow(m3/h)	25.4	29.7	31.8	35.0	37.1	39.2	44.5	49.8	53.0	59.4
	Water pressure drop(kPa)	55.0	55.0	58.0	60.0	60.0	65.0	65.0	72.0	74.0	74.0
	Interface size	DN100				DN125
Condenser	Type	High efficiency shell and tube heat exchanger
	Flow(m3/h)	33.4	38.9	41.3	45.2	48.2	50.6	58.1	64.8	68.8	76.7
	Water pressure drop(kPa)	54.0	54.0	56.0	58.0	58.0	62.0	62.0	70.0	72.0	72.0
	Interface size	DN100		DN125					DN150
Refrigerant	Type	R22
Refrigerant	Refrigerant volume(kg)	32.0	38.4	39.7	43.5	47.3	48.6	56.3	62.7	67.8	75.5
Overall dimensions	Length(mm)	3025	3250	3250	3250	3250	3650	3650	3650	3800	3800
	Width(mm)	1065	1050	1050	1050	1100	1130	1130	1250	1250	1300
	Height(mm)	1925	1752	1770	1770	1770	1870	1870	1870	1870	1950
Weight	Machine weight(kg)	2090	2300	2570	2850	2900	3080	3430	4030	4210	4430
Weight	Operating weight(kg)	2510	2720	2990	3270	3370	3450	3630	3980	4580	4760

Cooling condition: Chilled water inlet/outlet temperature -20/-25 ℃, cooling water inlet/outlet temperature 30℃/35℃
Temperature term: Chilled water outlet temperature -27℃~-17℃; cooling water inlet temperature 19℃~33℃.
Chilled water side should be added by 50% glycol water or 27% calcium chloride as anti-freeze.

Application:
The cooling ice for professional or recreational rinks. The low temperature chiller will keep the icy state.

No.	Name	Brand	Original
1	Compressor	Hanbell	Taiwan
2	PLC computer controller	SIEMENS	Germany
3	AC contactor	LG	Korea
	Thermal relay	LG	Korea
	Power protector	CARLO	Swiss
4	Heat exchanger	HENGDA/LENGDE	China
	Sight glass	ENERSON	USA
	Expansion valve	ENERSON	USA
	High and low pressure gauge	GYPG	China
	Flow switch	KAOBO	China

Country: Bolivia
Chiller type: water cooled
Cooling capacity: 130kW
Cooling medium: R407C
Supply power: 3P-380V-50Hz
Compressor brand: COPELAND
Compressor type: scroll
Water outlet tem.: 7℃

Country: Philippines
Chiller type: air cooled
Cooling capacity: 130kW
Cooling medium: R22
Supply power: 3P-380V-60Hz
Compressor brand: COPELAND
Compressor type: scroll
Water outlet tem.: 7℃

Country: Malaysia
Chiller type: water cooled
Cooling capacity: 175kW
Cooling medium: R22
Supply power: 3P-380V-50Hz
Compressor brand: HANBELL
Compressor type: screw
Water outlet tem.: 7℃

Country: UAE
Chiller type: air cooled
Cooling capacity: 41kW
Cooling medium: R22
Supply power: 3P-380V-50Hz
Compressor brand: COPELAND
Compressor type: scroll
Water outlet tem.: 7℃