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50HP Water-Cooled Screw Chiller

Product Manual:

The water-cooled screw chiller is manufactured with advanced production technology, with good quality, compact structure and beautiful appearance. It can be widely used in various types of air conditioning systems in civil buildings such as plastics, electroplating, electronics manufacturing, pharmaceuticals, chemical, food processing and other industrial sites and hotels, shopping malls and office buildings.

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Product Details Technical Parameters

Product Details / Product details

Product Manual:

The water-cooled screw chiller is manufactured with advanced production technology, with good quality, compact structure and beautiful appearance. It can be widely used in various types of air conditioning systems in civil buildings such as plastics, electroplating, electronics manufacturing, pharmaceuticals, chemical, food processing and other industrial sites and hotels, shopping malls and office buildings.


Unit Characteristics:

1. The original imported international brand BITZER Germany (Bitzer) HANBELL China Taiwan (Hanbell) high-efficiency energy-saving compressors are matched with high-quality condensers and evaporators, with high efficiency, high stability, low noise and long service life. The industrial-grade PLC unit is centrally controlled, and the energy ratio of the compressor can be timely and accurately controlled to match the cooling capacity of the unit to the cooling load, ensuring that the unit runs at the best efficiency and reducing operating costs.


2. The internal integration of multiple safety protection and processing functions such as water cutoff, low temperature, high and low pressure, antifreeze, phase loss, delay start, reverse phase overload, motor overheating oil pressure difference, etc.


3. Full Chinese operation interface, menu prompts, arbitrarily set unit operating status, home appliance operation environment.


4. The capacity control can adopt four-stage (100%-75%-50%-25%) or three-stage (100%-66%-33%) and stepless control system.


5. The unique built-in oil pressure system does not need an oil pump to ensure that the compressor maintains the best lubrication effect. The oil separator adopts a double-layer filtering method, which has good oil filtering effect and the heat converter can exert its maximum capacity.


6. High-efficiency internally threaded copper pipes enhance the heat transfer effect and are more energy efficient. Using the latest CAD/CAM design and processing technology, CNC machining center is completed, compact structure, small size, and durable. The U-shaped structure of the heat exchange tube bundle is convenient for maintenance and prevents refrigerant leakage.


7. It is made of imported steel pipes with high-speed drilling machines and other professional equipment. The steel pipes are in closer contact with the fins, and the heat exchange efficiency is higher. It has the advantages of small size, light weight, more compact and reasonable structure, etc.


8. There is no need to install cooling tower cooling water pumps and other equipment, which is suitable for areas with lack of water resources and poor water quality. It can be installed in open spaces such as the roof of a building without a dedicated machine room, saving space.

Technical Parameters / Technical parameters

Parameter table of water-cooled screw chiller:

Parameters      Model

LT-040DW

LT-050DW

LT-060DW

LT-075DW

LT-085DW

LT-100DW

LT-120DW

LT-140DW

LT-160DW

LT-180DW

Cooling Capacity

kcal/h             

103888

130204

152564

212420

241660

276060

342280

375820

405060

517720

KW 

120.8

151.4

177.4

247

281

321

398

437

471

602

Input total power

KW 

30.9

37.9

43.9

56.8

65

74

90.3

97.6

112.2

135.9

Maximum operating current

A

70

94

128

123

140

160

195

221

254

291

Power supply


3ph-380v 50HZ(200V/220V/415V  50HZ/60HZ))




The refrigerant

name


R22




Charge

kg

22

27

33

42

48

55

68

77

88

105

way to control


External balance temperature sensitive thermal expansion valve




Compressor

Type


Semi-closed screw type




Power

KW 

37.3

46.1

51.9

69.9

81.7

96.2

109.4

97.6

112.2

135.9

Start method


Y-△




Energy adjustment range

0-25-50-75-100




Evaporator

Type


Korean shell and tube




Frozen water

m3/h

20.7

26

30.4

42.3

48.2

55

68.2

74.9

80.7

103.2

Inlet and outlet pipe diameter

lnch

3"

3"

3"

3"

4"

4"

4"

5"

5"

6"

Condenser

Type


Shell and tube




Frozen water

m3/h

26

32.5

37.8

52.1

59.3

67.7

83.7

91.6

100

126.5

Inlet and outlet pipe diameter

lnch

3"

3"

3"

3"

4"

4"

4"

5"

5"

6"

Safety protection device

Compressor overheat protection, unit overload protection device, high and low pressure protection device, antifreeze protection device, power supply reverse phase/phase loss protector




Fusible bolt, water flow open and close




Mechanical Dimensions

long

mm

1960

2130

2450

2450

2750

2750

2750

2750

3460

3460

width

mm

855

855

985

985

1050

1050

1050

1050

1250

1350

high

mm

1540

1540

1600

1600

1600

1600

1730

1730

1730

1760

Unit weight

kg

820

950

1120

1300

1560

1720

2030

2200

2410

2630

Running weight

kg

970

1060

1270

1480

1780

1960

2250

2430

2470

2920

 

 

Parameters           Model

LT-200DW

LT-220DW

LT-240DW

LT-280DW

LT-320DW

LT-360DW

LT-400DW

LT-440DW

LT-480DW

Cooling capacity

kcal/h             

595120

675100

763680

751640

810120

1035440

1190240

1350200

1527360

KW 

692

785

888

874

942

1204

1384

1570

1776

Input total power

KW 

153.9

172.4

194.8

195.2

224.4

271.8

307.8

344.8

389.6

Maximum operating current

A

333

383

431

442

508

582

666

766

862

power supply


3ph-380v 50HZ(200V/220V/415V  50HZ/60HZ))

The refrigerant

name


R22

Charge

kg

112

125

137

160

182

205

230

225

278

way to control


External balance temperature sensitive thermal expansion valve

compressor

Type


Semi-closed screw type

power

KW 

153.9

172.4

194.8

97.6×2

112.2×2

135.9×2

153.9×2

172.4×2

194.8×2

Start method


Y-△

Energy adjustment range

0-25-50-75-100

Evaporator

Type


Korean shell and tube

Frozen water

m3/h

118.6

134.6

152.2

151.7

178.8

196

222.2

241

268.6

Inlet and outlet pipe diameter

lnch

6"

6"

6"

6"

6"

8"

8"

8"

8"

Condenser

Type




Shell and tube

Frozen water

m3/h

145

164.1

185.6

186.1

219.8

241.4

275.1

298.2

330.5

Inlet and outlet pipe diameter

lnch

6"

6"

6"

5"×2

5"×2

6"×2

6"×2

6"×2

6"×2

Safety protection device

Compressor overheat protection, unit overload protection device, high and low pressure protection device, antifreeze protection device, power supply reverse phase/phase loss protector

Fusible bolt, water flow open and close

Mechanical Dimensions

long

mm

3460

3460

3460

3750

3750

4230

4230

4230

4420

width

mm

1350

1350

1550

1320

1320

1580

1580

1580

1760

high

mm

1760

1760

1820

2150

2150

2230

2230

2230

2360

Unit weight

kg

2950

3050

3160

4230

4730

5380

5810

5920

6450

Running weight

kg

3210

3270

3420

4560

5150

5860

6050

6330

6730

 

Remarks:

1. The cooling capacity is calculated based on the chilled water inlet temperature of 12°C, outlet temperature of 7°C; cooling inlet temperature of 30°C, and outlet temperature of 35°C.


2. Working range: chilled water temperature range: 5°C to 35°C; chilled water inlet and outlet temperature difference: 3°C to 8°C, cooling water temperature range: 18°C to 30°C;


3. Cooling temperature difference between inlet and outlet air: 3.5℃ to 10℃.


Reserve the right to change the above parameters or dimensions without notice

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