steam double effect hitachi absorption · pdf filecooling capacity (%) ... the operating time...

Steam Double EffectHitachi Absorption Chillers422 - 7,032 kW (120 - 2,000 USRT)EX Series: Absorption Chillers (Steam Consumption Rate: 3.5 kg/h.RT)

422 - 7,032 kW (120 - 2,000 USRT)EXS Series: Absorption Chillers (Steam Consumption Rate: 3.8 kg/h.RT)

422 - 3,516 kW (120 - 1,000 USRT)V Series: Absorption Chillers (Steam Consumption Rate: 4.5 kg/h.RT)

kg/h・RTkg/h・RT

High-EfficiencySteam Consumption Rate

High-EfficiencySteam Consumption Rate

3.53.53.5

1st stageevaporator

7˚CChilledwater

Inter-mediate11˚C

15˚C 32˚C

Weaker solutionTo generator

From generator

Inter-mediate34.5˚C

37˚CCoolingwater

Refrigerant Solution

1st stageabsorber

2nd stageevaporator

2 stage evaporation and absorption cycle flow diagram

2nd stageabsorber

Ste

am

co

nsu

mp

tio

n (

%)

Cooling capacity (%)

Steam supply pressure (MPa)

Co

olin

g c

ap

acity (

%)

Hitachi Developed Next-Generation EX Series Absorption Chillers to Realize High Efficiency

by Fully Utilizing Creativity and Advanced Technologies

World's Highest Level 3.5 kg/h.RT (*1)

The movement to restrict the emission of greenhouse gas in order to prevent global warming is spreading

worldwide. Because air conditioning systems account for a large portion of the energy consumed in buildings and

factories, energy saving in air conditioning equipment plays an important role in cutting the emission of greenhouse

gas. Utilizing the cooling and heating technology and know-how which have been cultivated for many years,

Hitachi developed a new and powerful model of high-efficiency absorption chiller that is suited to saving energy and

cutting energy costs for air conditioning systems, and achieved the world's highest level 3.5 kg/h.RT (*1).

● 2-stage evaporation and absorption cycle

High efficiency was achieved by employing a 2-stage evaporation and absorption

cycle. By dividing the evaporation and absorption cycle into two (upper and lower)

stages and running the lower-stage evaporation and absorption cycle in the ranges of

15˚C to 11˚C chilled water temperature and 32˚C to 34.5˚C cooling water temperature,

the concentration of solution can be lowered to the same as that of light load

operation. As a result, the concentration difference between generator and absorber

can be increased and the flow rate of circulating absorbent in the whole cycle can be

reduced. Thus we succeeded in increasing cycle efficiency by reducing the flow rate

of circulating solution, which in turn cuts not only the heat radiation loss that results

from the cooling water's heat deprivation, but also the heat (steam) that is used for

heating in the high-temperature generator.

● High-efficiency plate heat exchanger

Low- and high-temperature solution heat exchangers are important elements that have

a great influence on the efficiency of the absorption chiller. We employed plate

heat exchangers of welded construction that are high in efficiency and can easily be

downsized and connected in series to keep flow velocity at an optimum level even

when the flow rate of circulating solution is low. Thus we succeeded in achieving high

efficiency and compact size at the same time.

● Drain heat exchangerThe drain heat exchanger exchanges heat between the warm refrigerant that is returned from the low-temperature generator and the cool

solution that comes from the absorber and thus preheats the solution that is sent to the high-temperature generator.

*1 EX series (chilled water temperature specification: 15˚C-7˚C)

■ World's highest level of efficiency realized (3.5 kg/h.RT *1).

■ Best suited for saving energy and cutting energy costs of air conditioning systems.

■ The longer the annual operating time, the higher the effect of cutting running cost.

■ Contributes to cutting emission of greenhouse gas.

■ Adapted for heavy load operation (annual operating time:4,000 hours or more) as standard.

Hitachi absorption chillers are distinguished not only by

their energy saving effect under rated conditions but also

by a high energy saving effect under partial loads. Its

energy saving effect is available also in winter and

intermediate seasons where cooling water temperature is

low. Besides, due to the unique solution circulating flow

control developed by Hitachi, they operate stably in a

whole range from high to low load conditions.

The figure at right shows a sample relational curve

between cooling capacity (%) and steam consumption(%).

● Optimal control of dilution operation time contributes to energy saving in the whole system

Solution diluting operation time before stopping the chiller is calculated and controlled by microcomputer to optimize stop time.

As a result, the operating time of the pump and cooling tower during dilute operation can be reduced, making it possible to save energy in

the whole system.

● Adapted for heavy load operation (annual operating time of 4,000 hours or more) as standard

In addition to the 2-stage evaporation and absorption cycle (EX series) and ACA flow (V series), a parallel flow system is employed to

realize a low-concentration cycle. Even under loads as heavy as 4,000 hours of annual cooling operation time, you can operate the system

at high reliability without worry.

● Safe operation assured by reinforced protective maintenance and abnormality prediction functions

Protective maintenance and abnormality prediction functions are incorporated to assure efficient and stable operation.

Standard steam supply pressure is 0.8 MPa (gauge).

When steam supply pressure is different from this value,

cooling capacity needs to be corrected according to the

figure at right for selecting a model.

<Example of model selection>

● When steam pressure is 0.4 MPa and the cooling

capacity is 330 RT

Required maximum capacity Q'＝＝452 RT

HAU-CW500EX (or V) needs to be selected.

※This graph is presented only for model selection. Be careful that it does not present the capacity change resulted from pressure fluctuation during operation.

330RT×100

73%

■ Protective maintenance and abnormality prediction items

1. Chilled water supercooling preventive function

2. Load limiting control

3. Purge frequency abnormality

4. Solution over-concentration prevention control

5. Cooling water temperature abnormality

6. Dirty cooling water tube

7. Dirty high-temperature generator tube

8. Refrigerant supercooling prevention control

Notes:1. 1 refrigerating ton (1 USRT) is 3,516 kW (3,024 kcal/h).2. Capacity control range is 100 - 20%3. Fouling factor is 0.000086m2K/W (0.0001 m2h˚C/kcal) for both chilled water and cooling water.4. Maximum working pressure is normally 780 kPa (8kgf/cm2G) for both chilled water and cooling water.5. Power source : 200V 3 phase.

6. We can manufacture models of 0.4 MPa (G) or 0.6 MPa (G) steam pressure specification. Please contact us if necessary.7. We can manufacture models of 6˚C or 5˚C chilled water outlet temperature specification. Model may change depending on capacity. Please contact us if necessary.8. Number of inside the mark ( ) is applied for 60Hz power supply.9. Specifications in this catalogue are subject to change without notice in order that HITACHI may bring the latest innovations to their customers.

USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120EXA

120

422

45.4

57

80

Odd number

123.0

71

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

420

65

20

3,050

2,150

2,550

6.8

6.4

150EXA

150

527

56.7

88

80

Odd number

154.0

106

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

525

65

20

3,050

2,150

2,550

6.8

6.4

180EXA

180

633

68.0

75

100

Odd number

186.0

82

150

Odd number

9.0 / 10.4

2.2 (3.7) + 1.1

0.4

630

65

20

3,600

2,150

2,550

7.9

7.4

210EXA

210

738

79.4

80

100

Even number

216.0

69

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

735

65

20

4,250

2,150

2,550

9.3

8.6

240EXA

240

844

Inlet : 15˚C Outlet : 7˚C

90.7

102

100

Even number


248.0

89

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

0.4

840

65

20

784

4,250

2,150

2,550

9.3

8.6

280EXA

280

985

105.8

54

125

Even number

288.0

70

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

980

65

20

5,050

2,150

2,550

10.8

10.0

300EXA

300

1,055

113.4

62

125

Even number

310.0

80

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,050

65

20

5,050

2,150

2,550

10.8

10.0

360EXA

360

1,266

136.1

50

125

Even number

370.0

50

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,260

100

20

4,900

2,500

3,150

16.1

14.5

400EXA

400

1,407

151.2

53

125

Even number

412.0

56

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,400

100

20

4,900

2,500

3,150

16.1

14.5

Temperature

Flow rate

Pressure loss

Connection piping size

Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Large temperature differential chilled water Chilled water 15˚C - 7˚C / Cooling water 32˚C - 37˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight

Electric capacity (50Hz / 60Hz)

USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120EX

120

422

72.6

70

100

Odd number

123.0

71

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

432

65

20

3,050

2,150

2,550

6.8

6.4

150EX

150

527

90.7

107

100

Odd number

155.0

108

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

540

65

20

3,050

2,150

2,550

6.8

6.4

180EX

180

633

108.9

73

125

Odd number

186.0

82

150

Odd number

9.0 / 10.4

2.2 (3.7) + 1.1

0.4

648

65

20

3,600

2,150

2,550

7.9

7.4

210EX

210

738

127.0

64

125

Even number

216.0

69

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

756

65

20

4,250

2,150

2,550

9.3

8.6

240EX

240

844


145.2

83

125

Even number


248.0

89

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

0.4

864

65

20

784

4,250

2,150

2,550

9.3

8.6

280EX

280

985

169.3

61

150

Odd number

288.0

71

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,008

65

20

5,050

2,150

2,550

10.8

10.0

300EX

300

1,055

181.4

70

150

Odd number

311.0

81

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,080

65

20

5,050

2,150

2,550

10.8

10.0

360EX

360

1,266

217.7

50

150

Odd number

371.0

100

200

Even number

12.2 / 11.7

3.7 + 2.2

0.4

1,296

100

20

4,900

2,500

3,150

16.1

14.5

400EX

400

1,407

241.9

59

150

Odd number

416.0

122

200

Even number

12.2 / 11.7

3.7 + 2.2

0.4

1,440

100

20

4,900

2,500

3,150

16.1

14.5

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Standard temperature differential specification Chilled water 12˚C - 7˚C / Cooling water 32˚C - 37˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450EX

450

1,582

272.2

90

200

Odd number

464.0

84

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,620

100

20

5,800

2,500

3,150

20.3

18.5

500EX

500

1,758

302.4

110

200

Odd number

518.0

101

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,800

100

20

5,800

2,500

3,150

20.3

18.5

560EX

560

1,969

338.7

53

200

Even number

578.0

50

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,016

100

25

7,200

2,500

3,150

25.0

22.9

630EX

630

2,215


381.0

67

200

Even number

656.0

63

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,268

100

25

7,200

2,500

3,150

25.0

22.9

700EX

700

2,461

423.4

90

200

Even number

Inlet : 32˚C Outlet : 37˚C (450～900EX), 38˚C (1000EX)

724.0

83

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

0.4

2,520

125

32

784

7,900

2,600

3,150

27.8

25.4

750EX

750

2,637

453.6

109

250

Even number

775.0

100

350

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,700

125

32

8,670

2,600

3,150

29.5

27.0

800EX

800

2,813

483.8

131

250

Even number

794.0

115

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

2,880

125

32

9,170

2,600

3,150

31.2

28.5

900EX

900

3,165

453.6

128

250

Even number

891.0

143

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,240

125

32

10,170

2,750

3,150

34.6

31.6

1000EX

1,000

3,516

504.0

173

250

Even number

860.0

140

350

Even number

18.9 / 18.5

7.5 + 2.2

0.75

3,600

125

32

11,170

2,750

3,150

37.8

34.5

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450EXA

450

1,582

170.1

82

150

Even number

462.0

84

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,575

100

20

5,800

2,500

3,150

20.3

18.5

500EXA

500

1,758

189.0

100

150

Even number

515.0

101

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,750

100

20

5,800

2,500

3,150

20.3

18.5

560EXA

560

1,969

211.7

68

150

Odd number

574.0

50

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

1,960

100

25

7,200

2,500

3,150

25.0

22.9

630EXA

630

2,215

238.1

85

150

Odd number

649.0

63

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,205

100

25

7,200

2,500

3,150

25.0

22.9

700EXA

700

2,461


264.6

114

150

Odd number

Inlet : 32˚C Outlet : 37˚C (450～900EXA), 38˚C (1000EXA)

720.0

83

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

0.4

2,450

125

32

784

7,900

2,600

3,150

27.8

25.4

750EXA

750

2,637

283.5

50

200

Even number

771.0

99

350

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,625

125

32

8,670

2,600

3,150

29.5

27.0

800EXA

800

2,813

302.4

53

200

Even number

791.0

115

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

2,800

125

32

9,170

2,600

3,150

31.2

28.5

900EXA

900

3,165

340.2

74

200

Even number

890.0

142

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,150

125

32

10,170

2,750

3,150

34.6

31.6

1000EXA

1,000

3,516

378.0

99

200

Even number

857.0

140

350

Even number

18.9 / 18.5

7.5 + 2.2

0.75

3,500

125

32

11,170

2,750

3,150

37.8

34.5

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


Steam consumption rate: 3.5 kg/h.RT



3 4



USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120EXSA

120

422

45.4

57

80

Odd number

125.0

73

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

456

65

20

3,050

2,150

2,550

6.3

5.9

150EXSA

150

527

56.7

88

80

Odd number

157.0

109

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

570

65

20

3,050

2,150

2,550

6.3

5.9

180EXSA

180

633

68.0

75

100

Odd number

189.0

85

150

Odd number

9.0 / 10.4

2.2 (3.7) + 1.1

0.4

684

65

20

3,600

2,150

2,550

7.5

7.0

210EXSA

210

738

79.4

80

100

Even number

220.0

71

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

798

65

20

4,250

2,150

2,550

8.9

8.2

240EXSA

240

844


90.7

102

100

Even number


251.0

91

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

0.4

912

65

20

784

4,250

2,150

2,550

8.9

8.2

280EXSA

280

985

105.8

54

125

Even number

292.0

72

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,064

65

20

5,050

2,150

2,550

10.2

9.4

300EXSA

300

1,055

113.4

62

125

Even number

315.0

82

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,140

65

20

5,050

2,150

2,550

10.2

9.4

360EXSA

360

1,266

136.1

50

125

Even number

378.0

50

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,368

100

20

4,900

2,500

3,150

15.4

13.8

400EXSA

400

1,407

151.2

53

125

Even number

422.0

60

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,520

100

20

4,900

2,500

3,150

15.4

13.8

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Large temperature differential chilled water Chilled water 15˚C - 7˚C / Cooling water 32˚C - 37˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120EXS

120

422

72.6

70

100

Odd number

125.0

72

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

468

65

20

3,050

2,150

2,550

6.3

5.9

150EXS

150

527

90.7

107

100

Odd number

166.0

121

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

585

65

20

3,050

2,150

2,550

6.3

5.9

180EXS

180

633

108.9

73

125

Odd number

189.0

85

150

Odd number

9.0 / 10.4

2.2 (3.7) + 1.1

0.4

702

65

20

3,600

2,150

2,550

7.5

7.0

210EXS

210

738

127.0

64

125

Even number

220.0

71

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

819

65

20

4,250

2,150

2,550

8.9

8.2

240EXS

240

844


145.2

83

125

Even number


265.0

99

150

Even number

8.7 / 8.7

2.2 + 1.1

0.4

0.4

936

65

20

784

4,250

2,150

2,550

8.9

8.2

280EXS

280

985

169.3

61

150

Odd number

292.0

72

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,092

65

20

5,050

2,150

2,550

10.2

9.4

300EXS

300

1,055

181.4

70

150

Odd number

330.0

90

200

Odd number

8.6 / 8.6

2.2 + 1.1

0.4

1,170

65

20

5,050

2,150

2,550

10.2

9.4

360EXS

360

1,266

217.7

50

150

Odd number

381.0

50

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,404

100

20

4,900

2,500

3,150

15.4

13.8

400EXS

400

1,407

241.9

59

150

Odd number

426.0

61

200

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,560

100

20

4,900

2,500

3,150

15.4

13.8

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Standard temperature differential specification Chilled water 12˚C - 7˚C / Cooling water 32˚C - 37˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450EXS

450

1,582

272.2

90

200

Odd number

476.0

87

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,755

100

20

5,800

2,500

3,150

19.3

17.5

500EXS

500

1,758

302.4

110

200

Odd number

531.0

106

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,950

100

20

5,800

2,500

3,150

19.3

17.5

560EXS

560

1,969

338.7

53

200

Even number

593.0

53

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,184

100

25

7,200

2,500

3,150

23.7

21.6

630EXS

630

2,215


381.0

67

200

Even number

671.0

66

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,457

100

25

7,200

2,500

3,150

23.7

21.6

700EXS

700

2,461

423.4

90

200

Even number

Inlet : 32˚C Outlet : 37˚C (450～900EXS), 38˚C (1000EXS)

742.0

87

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

0.4

2,730

125

32

784

7,900

2,600

3,150

26.3

23.9

750EXS

750

2,637

453.6

109

250

Even number

795.0

104

350

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,925

125

32

8,670

2,600

3,150

28.0

25.5

800EXS

800

2,813

483.8

131

250

Even number

814.0

121

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,120

125

32

9,170

2,600

3,150

29.6

26.9

900EXS

900

3,165

453.6

128

250

Even number

913.0

149

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,510

125

32

10,170

2,750

3,150

32.7

29.7

1000EXS

1,000

3,516

504.0

173

250

Even number

881.0

147

350

Even number

18.9 / 18.5

7.5 + 2.2

0.75

3,900

125

32

11,170

2,750

3,150

35.9

32.6

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450EXSA

450

1,582

170.1

82

150

Even number

472.0

86

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,710

100

20

5,800

2,500

3,150

19.3

17.5

500EXSA

500

1,758

189.0

100

150

Even number

527.0

104

250

Odd number

12.2 / 11.7

3.7 + 2.2

0.4

1,900

100

20

5,800

2,500

3,150

19.3

17.5

560EXSA

560

1,969

211.7

68

150

Odd number

589.0

52

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,128

100

25

7,200

2,500

3,150

23.7

21.6

630EXSA

630

2,215

238.1

85

150

Odd number

666.0

65

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,394

100

25

7,200

2,500

3,150

23.7

21.6

700EXSA

700

2,461


264.6

114

150

Odd number

Inlet : 32˚C Outlet : 37˚C (450～900EXSA), 38˚C (1000EXSA)

737.0

86

300

Even number

14.3 / 13.6

4.5 + 2.2

0.75

0.4

2,660

125

32

784

7,900

2,600

3,150

26.3

23.9

750EXSA

750

2,637

283.5

50

200

Even number

791.0

103

350

Even number

14.3 / 13.6

4.5 + 2.2

0.75

2,850

125

32

8,670

2,600

3,150

28.0

25.5

800EXSA

800

2,813

302.4

53

200

Even number

810.0

119

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,040

125

32

9,170

2,600

3,150

29.6

26.9

900EXSA

900

3,165

340.2

74

200

Even number

910.0

148

350

Even number

15.8 / 15.4

5.5 + 2.2

0.75

3,420

125

32

10,170

2,750

3,150

32.7

29.7

1000EXSA

1,000

3,516

378.0

99

200

Even number

878.0

146

350

Even number

18.9 / 18.5

7.5 + 2.2

0.75

3,800

125

32

11,170

2,750

3,150

35.9

32.6

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight





5 6

Integrated(Max. ofsplit units)






USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

mm

ton

ton

Type CW 1260EXA

1,260

4,430

476.3

90

200×2

Odd number

1,306

70

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

4,410

125

25×2

7,500 (7,100)

4,900 (2,200)

3,400 (3,200)

6,300

52.1

23.0

1400EXA

1,400

4,922

529.2

120

200×2

Odd number

1,452

90

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

4,900

150

32×2

8,200 (7,800)

4,900 (2,200)

3,400 (3,200)

7,000

57.4

25.4

1500EXA

1,500

5,274

567.0

60

200×2

Even number

1,556

110

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

5,250

150

32×2

8,700 (8,300)

4,900 (2,200)

3,400 (3,200)

7,500

60.6

26.9

1600EXA

1,600

5,626


604.8

60

200×2

Even number

Inlet : 32˚C Outlet : 37˚C (1260～1600EXA), 37.5˚C (1700～2000EXA)

1,658

125

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

0.4

5,600

150

32×2

784

9,200 (8,800)

4,900 (2,200)

3,400 (3,200)

8,000

64.5

28.7

1700EXA

1,700

5,977

642.6

70

200×2

Even number

1,602

125

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

5,950

150

32×2

9,700 (9,300)

4,900 (2,200)

3,400 (3,200)

8,500

68

30.3

1800EXA

1,800

6,329

680.4

80

200×2

Even number

1,696

120

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,300

150

32×2

10,200 (9,800)

4,900 (2,200)

3,400 (3,200)

9,000

72.1

32.2

2000EXA

2,000

7,032

756.0

105

250×2

Even number

1,728

135

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

7,000

150

32×2

11,200 (10,800)

4,900 (2,200)

3,400 (3,200)

10,000

78.9

35.3

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Tube Extraction Length

Chill

ed w

ate

rM

oto

rS

team

Dim

ensio

ns

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight (per module)


EX series Steam consumption rate: 3.5 kg/h.RTLarge temperature differential chilled water Chilled water 15˚C - 7˚C / Cooling water 32˚C - 37˚C

Length (L)

Width (W)

Height (H)

USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

mm

ton

ton

Type CW 1260EXSA

1,260

4,430

476.3

90

200×2

Odd number

1,353

85

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

4,788

125

25×2

7,500 (7,100)

4,900 (2,200)

3,400 (3,200)

6,300

49.5

21.7

1400EXSA

1,400

4,922

529.2

120

200×2

Odd number

1,504

95

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

4,320

150

32×2

8,200 (7,800)

4,900 (2,200)

3,400 (3,200)

7,000

54.4

23.9

1500EXSA

1,500

5,274

567.0

60

200×2

Even number

1,610

115

300×2

Even number

29

4.5×2 + 2.2×2

0.75×2

5,700

150

32×2

8,700 (8,300)

4,900 (2,200)

3,400 (3,200)

7,500

57.6

25.4

1600EXSA

1,600

5,626


604.8

60

200×2

Even number

Inlet : 32˚C Outlet : 37˚C (1260～1600EXSA), 37.5˚C (1700～2000EXSA)

1,718

130

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

0.4

6,080

150

32×2

784

9,200 (8,800)

4,900 (2,200)

3,400 (3,200)

8,000

61.5

27.2

1700EXSA

1,700

5,977

642.6

70

200×2

Even number

1,660

135

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,460

150

32×2

9,700 (9,300)

4,900 (2,200)

3,400 (3,200)

8,500

64.8

28.7

1800EXSA

1,800

6,329

680.4

80

200×2

Even number

1,757

125

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,840

150

32×2

10,200 (9,800)

4,900 (2,200)

3,400 (3,200)

9,000

68.7

30.5

2000EXSA

2,000

7,032

756.0

105

250×2

Even number

1,790

145

350×2

Even number

32

5.5×2 + 2.2×2

0.75×2

7,600

150

32×2

11,200 (10,800)

4,900 (2,200)

3,400 (3,200)

10,000

75.5

33.6

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure


Chill

ed w

ate

rM

oto

rS

team

Dim

ensio

ns

Coolin

g w

ate

r

Cooling capacity

Operating weight



EXS series Steam consumption rate: 3.8 kg/h.RTLarge temperature differential chilled water Chilled water 15˚C - 7˚C / Cooling water 32˚C - 37˚C

Length (L)

Width (W)

Height (H)

USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

mm

ton

ton

Type CW 1260EXB

1,100

3,868

415.8

155

200×2

Even number

818

90

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

3,850

125

25×2

7,500 (7,100)

4,900 (2,200)

3,400 (3,200)

6,300

52.1

23.0

1400EXB

1,200

4,219

453.6

90

200×2

Odd number

892

110

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

4,200

150

32×2

8,200 (7,800)

4,900 (2,200)

3,400 (3,200)

7,000

57.4

25.4

1500EXB

1,300

4,571

491.4

110

200×2

Odd number

966

135

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

4,550

150

32×2

8,700 (8,300)

4,900 (2,200)

3,400 (3,200)

7,500

60.6

26.9

1600EXB

1,400

4,922


529.2

135

200×2

Odd number


1,040

165

250×2

Odd number

32

5.5×2 + 2.2×2

0.75×2

0.4

4,900

150

32×2

784

9,200 (8,800)

4,900 (2,200)

3,400 (3,200)

8,000

64.5

28.7

1700EXB

1,500

5,274

567.0

160

200×2

Odd number

1,116

70

250×2

Even number

32

5.5×2 + 2.2×2

0.75×2

5,250

150

32×2

9,700 (9,300)

4,900 (2,200)

3,400 (3,200)

8,500

68

30.3

1800EXB

1,600

5,626

604.8

65

200×2

Even number

1,190

70

300×2

Even number

32

5.5×2 + 2.2×2

0.75×2

5,600

150

32×2

10,200 (9,800)

4,900 (2,200)

3,400 (3,200)

9,000

72.1

32.2

2000EXB

1,800

6,329

680.4

85

200×2

Even number

1,338

85

300×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,300

150

32×2

11,200 (10,800)

4,900 (2,200)

3,400 (3,200)

10,000

78.9

35.3

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure


Chill

ed w

ate

rM

oto

rS

team

Dim

ensio

ns

Coolin

g w

ate

r

Cooling capacity

Operating weight



Large temperature differential chilled water & cooling water Chilled water 14˚C - 6˚C / Cooling water 32˚C - 39˚C

Length (L)

Width (W)

Height (H)

USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

mm

ton

ton

Type CW 1260EXSB

1,100

3,868

415.8

155

200×2

Even number

847

95

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

4,180

125

25×2

7,500 (7,100)

4,900 (2,200)

3,400 (3,200)

6,300

49.5

21.7

1400EXSB

1,200

4,219

453.6

90

200×2

Odd number

924

125

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

4,560

150

32×2

8,200 (7,800)

4,900 (2,200)

3,400 (3,200)

7,000

54.4

23.9

1500EXSB

1,300

4,571

491.4

110

200×2

Odd number

1,000

145

250×2

Odd number

29

4.5×2 + 2.2×2

0.75×2

4,940

150

32×2

8,700 (8,300)

4,900 (2,200)

3,400 (3,200)

7,500

57.6

25.4

1600EXSB

1,400

4,922


529.2

135

200×2

Odd number


1,078

170

250×2

Odd number

32

5.5×2 + 2.2×2

0.75×2

0.4

5,320

150

32×2

784

9,200 (8,800)

4,900 (2,200)

3,400 (3,200)

8,000

61.5

27.2

1700EXSB

1,500

5,274

567.0

160

200×2

Odd number

1,155

95

300×2

Even number

32

5.5×2 + 2.2×2

0.75×2

5,700

150

32×2

9,700 (9,300)

4,900 (2,200)

3,400 (3,200)

8,500

64.8

28.7

1800EXSB

1,600

5,626

604.8

65

200×2

Even number

1,232

80

300×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,080

150

32×2

10,200 (9,800)

4,900 (2,200)

3,400 (3,200)

9,000

68.7

30.5

2000EXSB

1,800

6,329

680.4

85

250×2

Even number

1,386

105

300×2

Even number

32

5.5×2 + 2.2×2

0.75×2

6,840

150

32×2

11,200 (10,800)

4,900 (2,200)

3,400 (3,200)

10,000

75.5

33.6

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure


Chill

ed w

ate

rM

oto

rS

team

Dim

ensio

ns

Coolin

g w

ate

r

Cooling capacity

Operating weight



Large temperature differential chilled water & cooling water Chilled water 14˚C - 6˚C / Cooling water 32˚C - 39˚C

Length (L)

Width (W)

Height (H)

7 8



USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120VA

120

422

45.4

58

80

Even number

120.0

111

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

540

65

20

3,030

1,925

2,170

5.9

5.5

150VA

150

527

56.7

73

80

Even number

150.0

128

125

Odd number

8.4 / 8.4

2.2 + 1.1

0.2

675

65

20

3,030

1,925

2,170

6.3

5.8

180VA

180

633

68.0

83

100

Odd number

180.0

74

150

Even number

8.8 / 8.8

2.2 + 1.1

0.4

810

65

20

3,500

1,925

2,170

7.2

6.6

210VA

210

738

79.4

67

100

Odd number

210.0

85

150

Odd number

8.9 / 8.9

3.7

0.4

945

65

20

4,150

1,925

2,170

8.1

7.5

240VA

240

844


90.7

71

100

Odd number

Inlet : 32˚C Outlet : 37.5˚C

240.0

82

200

Odd number

8.9 / 8.9

3.7

0.4

0.4

1,080

65

20

784

4,150

1,925

2,170

8.4

7.7

280VA

280

985

105.8

73

125

Even number

280.0

98

200

Even number

12.3 / 12.3

5.5

0.4

1,260

65

20

4,950

1,990

2,250

10.5

9.7

320VA

320

1,125

121.0

79

125

Even number

320.0

97

200

Even number

12.3 / 12.3

5.5

0.4

1,440

65

20

4,950

1,990

2,250

10.7

9.8

360VA

360

1,266

136.1

113

125

Even number

360.0

106

200

Even number

14.7 / 14.0

4.5 + 2.2

0.75

1,620

100

20

4,900

2,440

2,650

13.8

12.1

400VA

400

1,407

151.2

115

125

Even number

400.0

110

200

Even number

14.7 / 14.0

4.5 + 2.2

0.75

1,800

100

20

4,900

2,440

2,650

14.3

12.5

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Large temperature differential chilled water Chilled water 15˚C - 7˚C / Cooling water 32˚C - 37.5˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 120V

120

422

72.6

93

100

Odd number

120.0

111

125

Odd number

6.5 / 6.5

1.1 + 1.1

0.2

540

65

20

3,030

1,925

2,170

5.9

5.5

150V

150

527

90.7

83

100

Even number

150.0

110

125

Odd number

8.4 / 8.4

2.2 + 1.1

0.2

675

65

20

3,030

1,925

2,170

6.3

5.8

180V

180

633

108.9

86

125

Odd number

180.0

74

150

Even number

8.8 / 8.8

2.2 + 1.1

0.4

810

65

20

3,500

1,925

2,170

7.2

6.6

210V

210

738

127

81

125

Even number

210.0

85

150

Odd number

8.9 / 8.9

3.7

0.4

945

65

20

4,150

1,925

2,170

8.1

7.5

240V

240

844


145.2

87

125

Even number


240.0

90

200

Even number

8.9 / 8.9

3.7

0.4

0.4

1,080

65

20

784

4,150

1,925

2,170

8.4

7.7

280V

280

985

169.3

95

150

Odd number

280.0

93

200

Odd number

12.3 / 12.3

5.5

0.4

1,260

65

20

4,950

1,990

2,250

10.5

9.7

320V

320

1,125

193.5

101

150

Odd number

320.0

91

200

Odd number

12.3 / 12.3

5.5

0.4

1,440

65

20

4,950

1,990

2,250

10.7

9.8

360V

360

1,266

217.7

117

150

Odd number

360.0

106

200

Even number

14.7 / 14.0

4.5 + 2.2

0.75

1,620

100

20

4,900

2,440

2,650

13.8

12.1

400V

400

1,407

241.9

119

150

Odd number

400.0

110

200

Even number

14.7 / 14.0

4.5 + 2.2

0.75

1,800

100

20

4,900

2,440

2,650

14.3

12.5

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Standard temperature differential specification Chilled water 12˚C - 7˚C / Cooling water 32˚C - 37.5˚C

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450V

450

1,582

272.2

115

200

Odd number

450.0

96

250

Odd number

19.8 / 20.3

5.5 + 3.7

1.5

2,025

100

20

4,900

2,480

2,940

17.5

15.6

500V

500

1,758

302.4

118

200

Odd number

500.0

102

250

Odd number

19.8 / 20.3

5.5 + 3.7

1.5

2,250

100

20

4,900

2,480

2,940

18.1

16.1

560V

560

1,969

338.7

67

200

Even number

560.0

108

300

Odd number

23.6 / 24.3

7.5 + 3.7

1.5

2,520

100

25

5,900

2,550

3,040

19.5

17.1

630V

630

2,215

381

71

200

Even number

630.0

120

300

Odd number

23.6 / 24.3

7.5 + 3.7

1.5

2,835

100

25

5,900

2,550

3,040

20.2

17.7

700V

700

2,461

423.4

61

200

Even number

700.0

101

300

Odd number

27.4 / 27.7

7.5 + 3.7

1.5

3,150

125

32

6,100

3,580

3,480

31.5

28

800V

800

2,813

483.8

62

250

Even number

800.0

76

350

Odd number

27.4 / 27.7

7.5 + 3.7

1.5

3,600

125

32

6,100

3,580

3,480

32.5

28.8

900V

900

3,165

544.3

108

250

Even number

900.0

117

350

Odd number

35.2 / 34.4

7.5 + 5.5

1.5

4,050

125

32

7,100

3,580

3,480

36.8

32.8

1000V

1,000

3,516

604.8

105

250

Even number

1,000.0

126

350

Odd number

35.2 / 34.4

7.5 + 5.5

1.5

4,500

125

32

7,100

3,580

3,480

37.9

33.7

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight


USRT

kW

˚C

m3/h

kPa

A

ー

˚C

m3/h

kPa

A

ー

kVA

kW

kW

kW

kg/h

A

A

kPa(G)

mm

mm

mm

ton

ton

Type CW 450VA

450

1,582

170.1

111

150

Even number

450.0

111

250

Even number

19.8 / 20.3

5.5 + 3.7

1.5

2,025

100

20

4,900

2,480

2,940

16.5

14.4

500VA

500

1,758

189

113

150

Even number

500.0

119

250

Even number

19.8 / 20.3

5.5 + 3.7

1.5

2,250

100

20

4,900

2,480

2,940

17

14.9

560VA

560

1,969

211.7

89

150

Odd number

560.0

108

300

Odd number

23.6 / 24.3

7.5 + 3.7

1.5

2,520

100

25

5,900

2,550

3,040

19.5

17.1

630VA

630

2,215

238.1

94

150

Odd number

630.0

120

300

Odd number

23.6 / 24.3

7.5 + 3.7

1.5

2835

100

25

5,900

2,550

3,040

20.2

17.7

700VA

700

2,461

264.6

80

150

Odd number

700.0

101

300

Odd number

27.4 / 27.7

7.5 + 3.7

1.5

3,150

125

32

6,100

3,580

3,480

31.5

28

800VA

800

2,813

302.4

82

200

Odd number

800.0

76

350

Odd number

27.4 / 27.7

7.5 + 3.7

1.5

3,600

125

32

6,100

3,580

3,480

32.5

28.8

900VA

900

3,165

340.2

143

200

Odd number

900.0

117

350

Odd number

35.2 / 34.4

7.5 + 5.5

1.5

4,050

125

32

7,100

3,580

3,480

36.8

32.8

1000VA

1000

3,516

378

139

200

Odd number

1,000.0

126

350

Odd number

35.2 / 34.4

7.5 + 5.5

1.5

4,500

125

32

7,100

3,580

3,480

37.9

33.7

Temperature

Flow rate

Pressure loss


Number of passes

Temperature

Flow rate

Pressure loss


Number of passes

Solution pump

Refrigerant pump

Purge pump

Steam consumption

Inlet piping size

Outlet piping size

Pressure

Length (L)

Width (W)

Height (H)

Chill

ed w

ate

rM

oto

rS

team

Dim

ensi

ons

Coolin

g w

ate

r

Cooling capacity

Operating weight

Rigging weight




784

0.4



784

0.4



9 10

EX/EXS Series

V Series

Twin module type (EX/EXS Series)

Black

Indicator coler

Black

Red

Green

Black

Black

Black

Yellow

Indicator coler Indication/set

Run

Forced dilution

Reset

NameRemote/local mode

changeover

Buzzer stop

△/▽

Stop

Name

Run indicator lamp

AbnormalityIndicator lamp

Stop indicator lampRemote/local mode

Indicator lamp

Power indicator lampSafety circuit

Indicator lamp

Indicator color Button color

Red

Orange

Red

Green

Red

Black

Max. commoncurrent

Specification

Resistive load 220VAC 2A/ 24VDC 2A

Inductive load 220VAC 0.5 A/24VDC 1A

8A

DC24V 6.7mA

Chiller controlpanel

External outputterminal

External

Chiller controlpanel

Other Gear-link (ventilating fan)

Gear-link

Interlock

Gear-link

Interlock

Ch

ille

r-h

ea

ter

Cooling towerCooling water pump

Chilled/hot water pump Air conditioner

AND(Note 3)

(Note 2)

Gear-link

AND

Terminal block

Terminal block

Terminal block

CommonOperation signalBatch error signalInterlock signal:Chilled/hotwater pumpInterlock signal:Cooling waterpump

CommonOperation signalBatch error signalAlarm signalCombustion signalDilution signalCooling modeRemote modeCooling water temperatureabnormal

Power source

Earth

Operation interlock(chilled/hot water pump)Continuous monitoringinterlockCooling water pumpinterlock

CommonRemote start/stop signal

Out of the scope ofHitachi supply

Out of the above can be selected

For remote start(DC24V pulse start/stop,non-polar)

(Option)

For remote start(No-voltage pulse start/stop)

(Option)

For remote start(No-voltage level start/stop)

(Standard)

Terminalblock

Terminalblock

Terminalblock

Common

Common

CommonCommonRemote startRemote stop

Remote startRemote stop

Remote start

Caution:(1) Always gear-link chilled water pump and cooling

water pump from the chiller.

(2) When only one unit of air conditioner is used, it is

necessary to interlock the air conditioner.

(3) Gear-link should be implemented so that if the

chilled water pump stops the cooling water pump

also stops.

● Control panelThe microcomputer-equipped control panel with improved operability and

maintainability supports speedy and accurate operation control.

1. Greatly improved load fluctuation follow-up characteristics

Temperature change is rapidly detected by means of PID compensation to

quickly control thermal power. Load fluctuation follow-up capability is greatly

improved to adapt to advanced air conditioning systems for buildings.

2. Easy-to-see indicators support accurate operation control

Reinforced display items, including operating conditions and error information,

enable you to easily and accurately grasp the machine's condition.

3. Safe operation backed up by preventive maintenance and abnormality

prediction functions.

The incorporated preventive maintenance and abnormality prediction functions

assure efficient and stable operation.

● Gear-link and interlocking mechanismsFor correct and safe operation, it is recommended that you interlock your Hitachi absorption chiller with the chilled water pump, the cooling

water pump and the cooling tower fan (thus sequentially starting up and stopping them). All operations must be performed on the chiller

side, and operating sequence and contact transfer shall be determined according to the following diagram.

● External connection terminals

Detail of remote start/stop signals Detail of external connection terminals External connection terminal specifications

↓

↓

Ancillary facility panel (out of the scope of Hitachi supply)

Absorption chiller control panel

(within the scope of Hitachi supply)

Absorption chillercontrol panel

(within the scope of Hitachi supply)

Ancillary facility panel (out of the scope of Hitachi supply)

1211

W

H

L

L WH

L W

H

EX/EXS series dimensions

V series dimensions

Twin module type (EX/EXS series) dimensions

120

3,050

2,150

2,550

EX/EXS series

L

W

H

150

3,050

2,150

2,550

180

3,600

2,150

2,550

210

4,250

2,150

2,550

240

4,250

2,150

2,550

280

5,050

2,150

2,550

300

5,050

2,150

2,550

360

4,900

2,500

3,150

400

4,900

2,500

3,150

450

5,800

2,500

3,150

500

5,800

2,500

3,150

560

7,200

2,500

3,150

630

7,200

2,500

3,150

700

7,900

2,600

3,150

750

8,670

2,600

3,150

800

9,170

2,600

3,150

900

10,170

2,750

3,150

1000

11,170

2,750

3,150

120

3,030

1,925

2,170

V series

L

W

H

150

3,030

1,925

2,170

180

3,500

1,925

2,170

210

4,150

1,925

2,170

240

4,150

1,925

2,170

280

4,950

1,990

2,250

320

4,950

1,990

2,250

360

4,900

2,440

2,650

400

4,900

2,440

2,650

450

4,900

2,480

2,940

500

4,900

2,480

2,940

560

5,900

2,550

3,040

630

5,900

2,550

3,040

700

6,100

3,580

3,480

800

6,100

3,580

3,480

900

7,100

3,580

3,480

1000

7,100

3,580

3,480

1260

7,500

4,900

3,400

EX/EXS series

L

W

H

1400

8,200

4,900

3,400

1500

8,700

4,900

3,400

1600

9,200

4,900

3,400

1700

9,700

4,900

3,400

1800

10,200

4,900

3,400

2000

11,200

4,900

3,400

●Electric Cabling WorkCoolingtower

Accessory/powerpanel

Chillercontrolpanel

Centralsupervisionboard, etc.

Air conditioner,etc.

Interlock

Indicationsignal

Remote start/stopsignal

Ch

ille

d a

nd

co

olin

gw

ate

r p

um

ps

inte

rlo

ck o

pera

tion

sig

na

l

inte

rlock

ope

ratio

nsi

gn

al

Ch

ille

d a

nd

co

olin

gw

ate

r p

um

ps

inte

rlo

cksi

gn

al

When the scopeof Hitachi supply

Power source forcontrol accessories

220V-50HzGrounding

bus

Cooling water system

Coolingtower

Airconditioner

Expansion tankSecondary side vablingwork is out of the scopeof Hitachi supply.

Plan so that specifiedpressure is obtained atthe control valve inlet.Make the piping betweenthe control valve and chiller;as short as possible.

1 m or longer riser

to prevent backflowof condenced wateror steam hammerphenomenon

Necessary for remotestart/stop or whenmanual shutoff valveoperation is difficult

Safety valve size selectionRelief pressure = Specified pressure+ 0.1 MPa (gauge)Relief vol.= Specified steam vol. or more Mist separator (if a large amount of

mist is contained in steam)

Drain trap (to be installedat lowest part of primarypiping)

Steam header

Steam

Back pressuresetting valve

Drain tank

Level switch

To boiler

Safety valve

Pressurereducingvalve

Installed when pressureneeds to be lowered

Installed when high-pressure wateris returned remotely

Drain piping requires no drain tap.

To chiller control panelsupplied by Hitachi asa separate unit.Outgoing

headerReturnheader

Bypass valve

Control cooling watertemperature by means ofa 3-way valve andstarting/stopping thecooling tower fan.

Chilled water system Steam system

Automaticshut-off valve

Steam controlvalve

Thermometer

Pressure gauge

Strainer

Stop valve

Air vent valve

Drain valve

Pump

3-way valve

2-way valve Piping flanges, packing and bolts will be prepared by customer,

Symbols

13

Precautions for Chilled and Cooling Water Piping Work (1) Water piping must be installed according to the diagram.(2) Refer to the installation drawing for the direction of water inlet

and outlet (depends on specification).(3) Do not allow 785 kPa (gauge) or higher pressure to be applied

to the absorption chiller (For units manufactured for particularly high pressure, the corresponding pressure will be regarded as this value.)

(4) Install a drain valve at the lowest part of the piping between stop valve and absorption chiller.

(5) Install an air vent valve at a location higher than the absorption chiller.

(6) Install the stop valve, thermometer, pressure gauge, etc. according to the diagram.

(7) When the chilled water system is not an open system, install an expansion tank according to the diagram.

(8) Install the cooling tower at a location where no exhaust gas from chimneys will be sucked into it. If exhaust gas is sucked into it due to wind direction, cooling water may become contaminated causing tubes to corrode.

(9) Be sure to install a strainer of approx. 10-mesh. If a lot of debris is contained in the chilled water system, they gather in the tubes and may cause chilled water to freeze. A clogged cooling water system may cause pressure to rise during operation, or tubes to corrode.

(10)Provide tapped holes (size 50A) for chemical cleaning at cooling water system inlet and outlet.

(11)Provide a water source for tube cleaning.(12)For the following reason, the chilled water pump and cooling

water pump must be installed on the pressure side of the chiller:

Procedures for Steam and Drain Piping Work

(1) Steam and drain piping must be installed according to the diagram.

(2) Steam supply pressure must be planned such that specified pressure can be

obtained at steam control valve inlet. Pressure variation must fall in the range of

the specified value +50/-100 kPa. Too large a pressure variation results in control

instability, and may result in an outage of the chiller. Or the life of the pumps and

control valves may be shortened.

(3) Steam control valve, steam shut-off valve (option) and steam inlet pressure gauge

are delivered as separate units. Mount them according to the diagram, and perform

cabling to the control panel. Other piping facilities, mating flanges, bolts, and

packing will be prepared by customer.

(4) To assure high controllability, the size of the steam control valve is smaller than the

connecting pipe. For connection to steam piping, use a reducer in the front and in

rear of the control valve.

(5) While the chiller is operated, steam drain may gather in the piping in the front and

in rear of the steam control valve, and the phenomenon of steam hammer may

occur at startup. Provide a riser of approx. 1m on the steam piping, and install a

control valve on the horizontal section of the piping. The piping should be laid with

a gradient in order to prevent drain from gathering.

(6) If the steam control valve is clogged with debris, etc., not only may the valve fail,

but the steam flow rate may also become uncontrollable. In the worst scenario, the

chiller might fail. Be sure to install a strainer of approx. 60 to 70 mesh at a location

shown in the diagram. After completion, sufficiently flush the piping.

(7) To prevent drain from flowing into the high-temperature generator, provide a drain

trap at the lowest part of the primary side piping of the control valve. If a large

quantity of mist is contained in the drain, install a mist separator.

(8) When the chiller is stopped, close the main steam valve to prevent steam from

leaking into the high-temperature generator. If manual closing is difficult when

multiple units are started/stopped or a unit is remotely started/stopped, provide an

automatic shut-off valve that is interlocked with the chiller. The automatic shut-off

valve is optional.

(9) The chiller might fail if operated for a long time with no steam supplied (when the

boiler is stopped or the main valve is closed, for example). Be sure to provide a

startup interlock to prevent the chiller from being operated without steam.

(10)Install a back pressure setting valve and a pressure gauge on the drain piping

according to the diagram so that drain back pressure can be controlled. Standard

drain back pressure is 98 kPa (gauge). Therefore, the piping must be planned so

that the head of the riser to the drain tank plus pressure loss becomes equal to this

value.

(11)The drain discharged from the absorption chiller is sufficiently supercooled

condensate, so that no drain trap is necessary on the drain piping. No drain trap

should be provided because the steam flow rate becomes unstable.

(12)Drain piping must be provided for each chiller unit. If equipment design joins

multiple units' drain piping together, a check valve must be installed on each line to

prevent backflow. In addition, the piping should be planned so as to minimize the

variation of drain back pressure.

(13)For the direction of steam and drain piping system inlet and outlet, refer to the

installation drawing.

● Piping work

●Correctly use the unit after carefully reading the instruction manual and the operation guide as well as well understanding the explanation given by the manufacturer.　(Regarding installation)●Avoid installing the unit in places where inflammable material (gasoline, thinner, etc.) is handled or where corrosive gas (ammonia, chlorine, etc.) is generated. Otherwise, fire

may result.●Carrying-in work, installation work, foundation work, electrical work, various piping work, various interlock work and hot/cold insulation work are necessary. Consult expert

companies. Improper work might cause overturn, electric shock, water leakage, refrigerant leakage, fuel leakage, oxygen deficiency accidents, burn or other problems.●Suction and exhaust piping work may be required. Consult expert companies. Improper work might cause oxygen deficiency or other accidents.●Waterproofing is necessary on the floor surface of the place where the chiller unit is installed, as well as a drainage ditch around the installation place. Improper waterproofing

might cause water leakage, resulting in water damage to neighboring facilities in the worst case.●Sufficient space for maintenance work must be kept around the unit. Insufficient space might obstruct safe operation and cause injury.●Regarding maintenance)●Maintenance, other than daily operation, requires expertise. Please consult the manufacturer. Improper maintenance might cause machine fault, oxygen deficiency accidents,

fire, electric shock or other problems.

● Standard specifications and options

● Scope of work

● Scope of delivery

Safety Precautions (Regarding use)

Standard specifications Options

Chilled water system

Flow rate Specification table value (constant flow rate) Variable flow operation (lower limit 50%)

Temperature Inlet 12˚C, outlet 7˚C (△t = 5˚C)Large temperature differential: Inlet 15˚C, outlet 7˚C (△t = 8˚C) Outlet temperature 5 to 12˚C

Max. working pressure 785 kPa (gauge) (8 kg/cm2G)

Flow rate Specification table value (constant flow rate) Variable flow operation (lower limit 50%)

Max. working pressure 785 kPa (gauge) (8 kg/cm2G)

　　　ー Complete unit carrying-in

Consumption 3.5 kg/h.RT (EX series), 3.8 kg/h.RT (EXS series), 4.5 kg/h.RT (V series)

TemperatureInlet 32˚C, outlet 37˚C (△t = 5˚C)Large temperature differential: Inlet 32˚C, Outlet 39.2˚C(V), 38.7˚C(EX)Inlet temperature lower limit: 20˚C

ー

ー

●Motor overload: Solution pump, refrigerant pump, etc.●Cycle error: High-temperature generator pressure too high, high-temperature　generator temperature too high, refrigerant too cool, etc.●Suspension of chilled water supply

●Anchor bolt ●Earthquake-proof specification ●Installation adapted to cold regions

●Suspension of cooling water supply●Seismometer

For nonstandard requirements, please contact us.

For indoor useMain unit: Anti-corrosive primer coating(Neither top coat nor hot/cold insulation is included.)Ambient temperature Cooling: 7 to 40˚CRelative humidity: 10 to 90%RH

Accumulation of uncondensable gases in tank by means of solution ejector and automaticdischarge of noncondensable gases by means of purge pump

Water qualityCity water (conforming to JRA9001) Industrial water, well water, reused waste water, sea water

(Adaptable after investigating water quality, etc.)

Cooling watersystem

Main unitsafety features

Carrying-in & installation

Installationtools

Equipment work

Installationparts

Separately prepared power board,central supervision board, etc.

Control board onmain unit

Working pressure 0.8 MPa(gage), 0.6 MPa(gage), 0. 4 MPa(gage)

Anchor bolts & nuts

Level adjustment liner plates

Anti-vibration stoppers

Cooling water connecting pipe Unnecessary Unnecessary

Mating flanges, packing, bolts, nuts For chilled/hot water and cooling water piping

As needed

For vibration-proof specification

Chilled/cooling water pump interlock operationWiring for interlock and central supervision

1. Absorption chiller main unit　(Including the initial filling of solution and refrigerant)2. Transportation (according to contract)3. Coating

Main unit: Anti-corrosive primer coatingControl panel: Mulsell 5Y7/1 semigloss (both inner and outer surfaces)

4. Wiring on absorption chiller5. Leakage test in Hitachi factory6. Accessories

a. Rubber pad (9.5 mm thick)b. Sole plate (6.0 mm thick)

Foundation work, chilled/hot water, cooling water, fuel drain piping work, exhaust flue work

Installation place

Carried-in form

Mode Proportional control with PID compensation 　ー

Delivery term: FOB/CIF/etc. Depending on contract

Unloading

Site building to machine base

Installation & leveling

Commissioning & adjustment

Power, water and steam for commissioning and adjustment

Disposal of packing materials

After-sales service

Earthing

Cooling water temperature contro Cooling tower fan start/stop, 3-way valve control, etc.

Item

Supplied byHitachi

Supplied bycustomer

ClassificationRemarks

Options

Capacity control

On-site Field commissioning and adjustment (only once) 　ーCommissioning

Steam system

Transportation

Others

Hot insulation and cold insulation work

Chiller main unit Hitachi work is up to anti-corrosive primer coating

Control panel Paint color: Munsell 5Y7/1

Power source board → Control board on main unit 380V AC, 3-phase

Connecting cable to steam control valve Steam control valve is supplied by Hitachi as a separate unit

Hot/cold insulation

Cold insulation

Finish coat

Electrical work

Appurtenant work

Mode

No. of phases 3-phase 　ーVoltage, frequency 380 V, 50 Hz

Wiring on machine Cabling (control cable, power cable)

Power

Electrical wiring

○××××××

×○××

××

×

×

×

×××××

×○○○○○○

○×○○

○○

○

○

○

○○○○○

The following table shows a standard scope of supply and actual scope is subject to contact.

Please consult with our sales staff or distributors.

14

Printed in Japan (H) MR-E067 0508

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