Flooded Screw Chiller Technical Sales Guide - Gree · LS 180 Model H Nb Water Chiller Nominal...

1. MODELS LIST

2. NOMENCLATURE

3. FEATURES

4. PRODUCT DATA

5. PERFORMANCE CORRECTION

6. ANTIFREEZE

7. INSTALLATION

8. ELECTRICAL DATA

9. SCHEMATIC WIRING DIAGRAM

10.MICROPROCESSOR CONTROLLER

11.APPLICATION DATA

1

3

6

13

3

9

13

17

17

18

18

11 MODELS LIST

Nominal Capacity Model

Refrigerant

R134a

RT

52

60

68

84

97

109

126

144

165

181

193

218

250

286

328

362

Model Name

LSBLG180H/Nb-M

LSBLG210H/Nb-M

LSBLG240H/Nb-M

LSBLG300H/Nb-M

LSBLG340H/Nb-M

LSBLG380H/Nb-M

LSBLG450H/Nb-M

LSBLG500H/Nb-M

LSBLG580H/Nb-M

LSBLG640H/Nb-M

LSBLG680H/Nb-M

LSBLG760H/Nb-M

LSBLG880H/Nb-M

LSBLG1000H/Nb-M

LSBLG1160H/Nb-M

LSBLG1280H/Nb-M

Power Supply

Ph, V, Hz

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

3,380~415,50

180=182kW= 52 RT

210=212kW= 60 RT

240=238kW= 68 RT

300=296kW= 84 RT

340=340kW= 97 RT

380=383kW= 109 RT

450=445kW= 126 RT

500=508kW= 144 RT

580=582kW= 165 RT

640=637kW= 181 RT

680=680kW= 193 RT

760=767kW= 218 RT

880=880kW= 250 RT

1000=1006kW= 286 RT

1160=1155kW= 328 RT

1280=1275kW= 362 RT

Options

LS

180

Model

H

Nb

Water Chiller

Nominal Cooling Capacity

Model Description

Flooded

Refrigeration Nb - R134a

BLG Screw Compressor

22 NOMENCLATURE

LS B LG 180 H / Nb-M

33 FEATURES

3.1 Description

With a wide cooling capacity range from 180 to 1280 kW, GREE water-cooled screw chillers are being

selected by more and more user for high efficiency and absolute dependability, GREE chillers are new

widely applied in hotel, apartment, restaurant, office building, shopping mall, theater, gymnasium,

hospital and so on, as well as supplying cool water for machine cooling purpose based on customized

design all over the world.

3.2 Standard Specifications

High Efficiency Full Load Operation

Utilizing new screw compressor technology, the chillers meet or exceed the performance requirements

of ASHRAE 90.1. All system components are selected for optimum performance, including the

condenser and evaporatars sizes.

Excellent part load performance

Because the units are not operated in full load condition most of the time, integrated part load value

Flooded Screw Chiller Technical Sales Guide

M Power Supply 380~415V,3ph,50Hz

4

Compressor

Condenser

(IPLV) is an important performance indicator as outlined in standard ARI550/590-1998. Thanks to the

patented design of two system parallel connection technology, a excellent IPLV performance has been

come true.

Capacity control

Step or stepless capacity control are optional available, enable the unit be turned on with the least load

to reduce startup current; and match up capability output of the units to actual load, which make the

units operate steadily and reduce operation cost.

Compact suction gas cooled semi-hermetic twin screw compressors with high efficiency performance

curve. Compressors are provided with high efficiency suction strainer, oil trainer crank case heater and

built in safety pressure relief valve. Compressors are also provided with intelligent electronics including

motor temperature monitoring, phase reversal protection, manual reset lock-out and discharge

temperature protection by PTC`s sensors. Optimized oil management ensure minimum refrigerant

dilution in oil.

Cooler

Flooded type, shell-and-tube type with refrigerant evaporated inside the shell and water flowing in the

tubes. With special high efficiency pool boiling heat-exchange tubes, which are expanded into a steel

plate, the flooded type structure enable both the theories of pool boiling and nucleation boiling be well

applied.

Thus, the uniform refrigerant distribution, optimized temperature field of heat transferring, heightened

evaporating temperature are achieved, and cooling capacity and EER of the unit are improved greatly.

All evaporator are designed, constructed, inspected, and stamped according to the requirements of the

ASME Boiler and Pressure Vessel Code.

The condenser is shell-and-tube type, carbon steel fin and seamless high efficiency copper tubes with

inside the shell and flowing through the tubes. Each condenser is

designed, constructed, inspected, and stamped according to the requirements of the ASME Boiler and

Pressure Vessel Code.

Refrigerant condensing water

Reliable oil return

In order to ensure the oil in refrigeration system returning to compressor, the secondary oil separator

with both centrifugal and absorption setups is used for improving the separating efficiency of oil from

refrigerant, and a kind of injection equipment of refrigerant is specially designed which can be a great

help of oil returning into compressor from refrigeration circuit;

At the same time, the low oil location protection is applied to avoid the damnification to compressor

from low oil to ensure reliability of the chiller.

Strict Out-going test

Each unit will be tested strictly not only on nominal operation condition but also minimum/maximum

operation condition when leave factory by advanced on-line test system.

Superior Controls

3.3 Standard Accessories

Water flow switch

Unit on-off switch

Filter drier

Under voltage and phase protection

Sight glass

Liquid line solenoid valve

5

Control panel

The Control panel provides a friendly interface for the operator with the color touch LCD(liquid crystal

display) which can display chiller's operating status, diagnostic message and date curve .

GREE has provided the latest technology in controlling the chillers. The control logic is designed to

provide maximum efficiency, to help provide continuous operation in unusual operating conditions

through proactive controls, and to provide the history record of operating to aid in trouble shooting.

Protocol for integrating with your building automation system (BAS) are optional available.

New throttling setup

The new throttle setup can calculate optimal value of EER through control logic and adjust it

automatically from actual value to optimal value because refrigerant flux and the high of the liquid

in flooded evaporator can be control accurately by electronic expansion valve the efficiency of unit

will be maximized in either full load operation or part load operation.

Indicator lights

A water flow switch is available for field installation in the chilled water piping to protect against

evaporator freeze-up under low, or no flow conditions. Interface are provided in the unit control center

for field connection of the water flow detection switch. The flow detection device need to be prepared

on field.

Pump control output

Provides a digital output to control the secondary chilled water pump. Standard unit has one pump

control output.

ON-OFF switch is provided for manually switching the unit control circuit.

LED lights of indicating power on of unit, running state and fault indications.

Refrigerant circuits are kept free of moisture, sludge, acid and oil contamination by filter drier.

Protects against low voltage as well as phase fault reversal.

An color indicator shows moisture contents and provides a mean for checking the system refrigerant

charge volume.

It will be closed when the compressor is off to prevent any liquid refrigerant from accumulating in the

evaporator.


6

44 PRODUCT DATA

4.1 Ratings

EER=Energy Efficiency Ratio at full load-the cooling capacity in Btu's per hour(Btu/h) divided by the power input

in watts, expressed in Btu/h per watts((Btu/h)/watt).

3.4 Standard Control & Safety Devices

Safety valve

Protecting the unit against high discharge pressure.

Crankcase heaters

Compressor built-in protection device

Motor winding temperature, discharge gas temperature and phase reversal for direction of rotation.

Protects the unit against from refrigerant migration, oil dilution and potential compressor failure.

Model Capacity(kW / RT) EER

LSBLG180H/Nb-M

LSBLG210H/Nb-M

LSBLG240H/Nb-M

LSBLG300H/Nb-M

LSBLG340H/Nb-M

LSBLG380H/Nb-M

LSBLG450H/Nb-M

LSBLG500H/Nb-M

LSBLG580H/Nb-M

LSBLG640H/Nb-M

LSBLG680H/Nb-M

LSBLG760H/Nb-M

LSBLG880H/Nb-M

LSBLG1000H/Nb-M

LSBLG1160H/Nb-M

LSBLG1280H/Nb-M

182/52

212/60

238/68

296/84

340/97

383/109

445/126

508/144

582/165

637/181

680/193

767/218

880/250

1006/286

1155/328

1275/362

17.23

17.21

17.26

17.70

17.83

17.64

18.06

18.23

17.72

17.80

17.83

17.67

17.86

18.05

17.58

17.81

7

4.2 Physical Data

ModelsLSBLG H/Nb-M


Power Consumption

kW

RT

kW

180 210 240 300 340 380 450 500

182 212 238 296 340 383 445 508

52 60 68 84 97 109 126 144

36 42 47 57 65 74 84 95

Running Control

Power Supply

The multicolor touch LCD(liquid crystal Display)

380~415V 3N 50Hz

Safeties

High/low pressure protection, discharge temp. protection, anti-freeze water flow protection , low water flow protection ,phase-sequence protection, compressor overload protection, low oil location protection, Safety valve , Crankcase heaters

Compressor Type Semi-Hermitic Screw Compressor

Refrigerant Type R134a

Water Flow9 10 11 14 16 18 21 24

GPM 136 158 180 224 260 290 334 383

Loss of Pressure 40 45 50 60 60 62 64 66

Heat Exchanger Flooded Shell and Tube Evaporator

1.4Max.Pressure

Water In/Out Pipe Diameter

DN80 DN80 DN80 DN125 DN125 DN125 DN150 DN150

Water FlowGPM 163 194 216 268 308 348 396 453

Loss of Pressure 53 54 62 62 63 62 67 68

Shell and Tube Condenser Heat Exchanger

Max. Pressure 2.0



Cooler

Condenser

Dimension

Operation Weights

Shipping Weights 1800 1900 1900 2800 2900 3100 3850

1890 1995 1995 2940 3045 3255

4600

4043 4830

1487 1487 1487 1680 1680 1720 2130 2130

3160 3160 3160 3160 3160 3160 3160 3160

1150 1150 1150 1400 1400 1400 1520 1520

Height

Width

Depth

NOTES: 1 1 mm=0.0394 in. 2 Nominal Operate Condition. Inlet/Outlet chilled water temperature: 12/7 (44.6/53.6 ). Inlet/Outlet cooling water temperature: 30/35 (86.4/95.4 ).


L/s

10 12 14 17 19 22 25 29L/s

ModelsLSBLG H/Nb-M


Power Consumption

kW

RT

kW

NOTES: 1 1 mm=0.0394 in. 2 Nominal Operate Condition. Inlet/Outlet chilled water temperature: 12/7 (44.6/53.6 ). Inlet/Outlet cooling water temperature: 30/35 (86.4/95.4 ).

Running Control

Power Supply

Safeties

High/low pressure protection, discharge temp. protection, anti-freeze water flow protection , low water flow protection ,phase-sequence protection, compressor overload protection, low oil location protection, Safety valve , Crankcase heaters

Compressor Type Semi-Hermitic Screw Compressor

Refrigerant Type R134a

Water FlowGPM

Loss of Pressure

Heat Exchanger

1.4Max.Pressure


Water FlowGPM

Loss of Pressure

Shell and Tube Condenser Heat Exchanger

Max. Pressure 2.0


Cooler

Condenser

Dimension

Operation Weights

Shipping Weights

Height

Width

Depth

8

580 640 680 760 880 1000 1160 1280

582 637 680 767 880 1006 1155 1275

165 181 193 218 250 286 328 362

112 122 130 148 168 190 224 244

440 484 515 581 669 761 880 968

68 74 76 76 76 77 78 78


524 576 616 695 792 906 1052 1153

68 68 68 68 78 78 80 80


2130 2130 2030 2030 2230 2230 2230 2230

3160 3160 3400 3400 3900 3900 3900 3900

1520 1520 1700 1700 1900 1900 1900 1900

3850 4600 5100 5100 6200 6500 6500 7000

4043 4830 5355 5355 6510 6825 6825 7350

380~415V 3N 50Hz

The multicolor touch LCD(liquid crystal Display)

Flooded Shell and Tube Evaporator

L/s 28 31 33 37 42 48 56 61

L/s 33 36 39 44 50 57 66 73

55 PERFORMANCE CORRECTION

LSBLG180H/Nb-M

Leaving Chilled Water Temperature

250/71

230/65

210/60

190/54

170/48

38

36

34

32

30

28

26

24

224 5 6 7 8 9 10 11 12 13 14 15

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

LSBLG210H/Nb-M


280/80

260/74

240/68

220/63

200/57

44

42

40

38

36

34

32

30

28


LSBLG240H/Nb-M LSBLG300H/Nb-M


380/108

360/102

340/97

320/91

300/85

230/80

59

57

55

53

51

49

47

45

43

9


16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( ) 39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )4 5 6 7 8 9 10 11 12 13 14 15 16( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

320/91

300/85

280/80

260/74

240/68

220/63

49

45

43

40

38

36

47

34

4 5 6 7 8 9 10 11 12 13 14 15 16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

4 5 6 7 8 9 10 11 12 13 14 15 16( )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

LSBLG340H/Nb-M


410/116

390/111

370/105

350/99

330/94

67

65

63

61

59

57

55

53

514 5 6 7 8 9 10 11 12 13 14 15

LSBLG380H/Nb-M


450/128

440/125

420/119

400/114

380/108

76

74

72

70

68

66

64

62

604 5 6 7 8 9 10 11 12 13 14 15

360/102

LSBLG500H/Nb-M


580/165

560/159

540/153

520/148

500/142

97

95

93

91

89

87

85

83

814 5 6 7 8 9 10 11 12 13 14 15

480/136

LSBLG450H/Nb-M


520/148

500/142

480/136

460/131

440/125

86

84

82

80

78

76

74

72

704 5 6 7 8 9 10 11 12 13 14 15

420/119

10

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )



LSBLG580H/Nb-M


700/199

670/190

640/182

610/173

580/165

120

116

112

108

104

100

96

92

88

4 5 6 7 8 9 10 11 12 13 14 15

550/156

LSBLG640H/Nb-M

730/207

700/199

670/190

660/188

630/179

130

126

122

118

114

110

106

102

98

4 5 6 7 8 9 10 11 12 13 14 15

600/170

LSBLG760H/Nb-MLSBLG680H/Nb-M

11

920/261

880/250

840/239

800/227

760/216

154

150

146

142

138

134

130

126

122

4 5 6 7 8 9 10 11 12 13 14 15

720/205

840/239

800/227

760/216

720/205

680/193

138

134

130

126

122

118

114

110

106

4 5 6 7 8 9 10 11 12 13 14 15

640/182



25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )


Leaving Chilled Water TemperatureLeaving Chilled Water Temperature


LSBLG1160H/Nb-M

1320/375

1280/364

1240/352

1200/341

1160/330

232

228

224

220

216

212

208

104

200

4 5 6 7 8 9 10 11 12 13 14 15

1120/318

1080/307

LSBLG1280H/Nb-M

1440/409

1400/398

1360/386

1320/375

1280/364

250

246

242

238

234

230

226

222

218

4 5 6 7 8 9 10 11 12 13 14 15

1240/352

LSBLG880H/Nb-M LSBLG1000H/Nb-M

1160/330

1120/318

1080/307

1040/295

1000/284

960/273

194

190

186

182

178

174

170

166

1624 5 6 7 8 9 10 11 12 13 14 15

12

4 5 6 7 8 9 10 11 12 13 14 15

1040/295

1000/284

960/273

920/261

880/250

840/237

170

166

162

158

154

150

146

142

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8( )

25/77

22/72

30/86

35/95

37/99

37/99

35/95

30/86

25/77

22/72

16( )

39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8 ( )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

Leavi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/

)Le

avi

ng C

oolin

g W

ate

r Te

mper

atu

re(

/ )

66 ANTIFREEZE

A glycol solution is required when ambient temperature is below 0 and there is water in evaporator or condenser for avoiding the copper in evaporate or condenser is frosted cleft. The use of glycol will reduce the performance of the unit depending on concentration.

10 20 30 40 50

Freezing Point -3.3(26) -7.8(18) -13.9(7) -21.7(-7) -33.3(-29)

Ambient Temperature 8.3(47) -1.7(29) -6.7(20) -16.7(2) -26.7(-16)

Cooling Capacity Correction Factor 0.998 0.993 0.987 0.980 0.973

Water Flow Correction Factor 1.036 1.060 1.092 1.132 1.182

Pressure Drop Correction Factor 1.07 1.10 1.18 1.24 1.30

% By Weight

77 INSTALLATION

7.1 Dimensions

The unit dimensions with single compressor LSBLG180H/Nb-M LSBLG640H/Nb-M

The unit dimensions with two compressors LSBLG680H/Nb-M LSBLG1280H/Nb-M

Cooling water outlet

Cooling water intlet

Chilled water intlet

Chilled water outtlet

Chilled water inlet

Chilled water outlet

Cooling water outlet

Cooling water inlet

13


Unit mm

Models A B C D E F G H J

LSBLG180H/Nb-M 3160 1150 1487 270 135 225 450 305 150

LSBLG210H/Nb-M 3160 1150 1487 270 135 225 450 305 150

LSBLG240H/Nb-M 3160 1150 1487 270 135 225 450 305 150

LSBLG300H/Nb-M 3160 1400 1680 375 200 270 540 410 200

LSBLG340H/Nb-M 3160 1400 1680 375 200 270 540 410 200

LSBLG380H/Nb-M 3160 1400 1680 375 200 270 540 410 200

LSBLG450H/Nb-M 3160 1520 2130 397 260 315 630 437 290

LSBLG500H/Nb-M 3160 1520 2130 397 260 315 630 437 290

LSBLG580H/Nb-M 3160 1520 2130 397 260 315 630 437 290

LSBLG640H/Nb-M 3160 1520 2130 397 260 315 630 437 290

LSBLG680H/Nb-M 3400 1700 2030 414 360 370 685 487 290

LSBLG760H/Nb-M 3500 1700 2030 414 360 370 685 487 290

LSBLG880H/Nb-M 3900 1900 2230 419 405 420 790 429 350

LSBLG1000H/Nb-M 3900 1900 2230 419 405 420 790 429 350

LSBLG1160H/Nb-M 3900 1900 2230 419 405 420 790 429 350

LSBLG1280H/Nb-M 3900 1900 2230 419 405 420 790 429 350

7.2 Rigging Instruction

Attention to Riggers

Center of gravity is not unit center line. Ensure center of gravity aligns with the main lifting point before lifting. Use spreader bar when rigging, to prevent the slings during the unit.

Caution

All panels should be in place when rigging.Care must be taken to avoid damage to the pipeline during handing.

Rigging schematic plan according to the indication on unit)

14

7.3 Mounting Location

Mounting location schematic plan

Shock pad(Self-supply by consumer)

Back

Front

RightLeft

[Front of the unit]

Gutter

Footing of the unit

Foundion bolt M18(Self-supply by consumer)

Micro-stone concrete C300#

(Secondary pour)

concrete C300#

Compace soil

Installation plane

10

0

15

Unit mm

Models A M K

LSBLG180H/Nb-M

LSBLG210H/Nb-M

LSBLG240H/Nb-M

LSBLG300H/Nb-M

LSBLG340H/Nb-M

LSBLG380H/Nb-M

LSBLG450H/Nb-M

LSBLG500H/Nb-M

LSBLG580H/Nb-M

LSBLG640H/Nb-M

LSBLG680H/Nb-M

LSBLG760H/Nb-M

LSBLG880H/Nb-M

LSBLG1000H/Nb-M

LSBLG1160H/Nb-M

LSBLG1280H/Nb-M

3160

3160

3160

3160

3160

3160

3160

3160

3160

3160

3400

3400

3900

3900

3900

3900

1350

1350

1350

1600

1600

1600

1720

1720

1720

1720

1900

1900

2000

2000

2000

2000

B

1150

1150

1150

1400

1400

1400

1520

1520

1520

1520

1700

1700

1900

1900

1900

1900

D

2630

2630

2630

2630

2630

2630

2630

2630

2630

2630

2830

2830

3330

3330

3330

3330

740

740

740

920

920

920

1100

1100

1100

1100

1210

1210

1420

1420

1420

1420


7.4 Installation Clearance

I

G

H

F

Installation clearance schematic plan

Unit mm

Models D F G H I

LSBLG180H/Nb-M 2600 500 600 1000 600

LSBLG210H/Nb-M 2600 500 600 1000 600

LSBLG240H/Nb-M 2600 500 600 1000 600

LSBLG300H/Nb-M 2600 500 600 1000 600

LSBLG340H/Nb-M 2600 500 600 1000 600

LSBLG380H/Nb-M 2600 500 600 1000 600

LSBLG450H/Nb-M 2600 500 600 1000 600

LSBLG500H/Nb-M 2600 500 600 1000 600

LSBLG580H/Nb-M 2600 500 600 1000 600

LSBLG640H/Nb-M 2600 500 600 1000 600

LSBLG680H/Nb-M 3000 500 600 1000 600

LSBLG760H/Nb-M 3000 500 600 1000 600

LSBLG880H/Nb-M 3500 500 600 1000 600

LSBLG1000H/Nb-M 3500 500 600 1000 600

LSBLG1160H/Nb-M 3500 500 600 1000 600

LSBLG1280H/Nb-M 3500 500 600 1000 600

16

Field Control Wiring Entrance Main Power Entrance

Typical Control Box Locations And Field Wiring

Main Power Entrance

Field Control Wiring Entrance

Typical Control Box Lcations And Field Wiring

(LSBLG680H/Nb ~LSBLG1280H/Nb )-M -M (LSBLG180H/Nb ~LSBLG640H/Nb ) -M -M

1 2 3 4 5 6 7 8 9 10 31 32

1 2 3 1 2 3 4

1

2

3

4

1

2

3

Chilled water pump contactor(220V~)

Cooling water pump contactor(220~)

Cooling fan contactor(220~)

Cooling water flow switch

Chilled water flow switch

,Power breakers voltage releases(220V~)(option)

Remote switch

L1 L2 L3 N

L1 L2 L3 NE

Terminal Block

Field Provided

Unit Power Supply

Legend:

Field Power Wiring

Field Control Wiring

99 SCHEMATIC WIRING DIAGRAM

17

88Model Sectional Area of Electrical Wire

LSBLG180H/Nb-M 235mm













LSBLG1000H/Nb-M 2150mm 2



Model

ELECTRICAL DATA


Sectional Area of Electrical Wire

APPLICATION DATA111111.1 Work Range

Chilled water Cooling water

Leaving water temperature

Temperature difference of outlet and inlet water( / )

Leaving water temperature

Temperature difference of outlet and inlet water( / )

11.2 Installation Footing

a. The installation footing is required with concrete or steel structure,can bear the Operation Weight of

the unit, with a level upper plane, and preform gutter.

b. According to Mounting Location schematic plan, place steel plate and shock pad exactly on the

installation footing, proceed secondary pour after the unit and foundation bolt is placed. The

foundation bolt is out about 100 mm of installation plane usually.

11.3 Installation Clearance

a. Need to perform installation , operation and maintenance spacing .

b. Ensure the unit keep out of insolation and rain away from fire , combustibles, corrosive gas

and discharge gas; preform ventilation spacing; should have suitable measure to reduce

noise and shock.

18

1010After press startup button, the unit will be started-up after controls detect all inputed signals are normal.

controls auto control compressor startup, capacity adjust and shutdown through the temperature of

chilled in water detected; auto control the step of electrical expanding valve through degree of

superheat temperature detected; auto prevent the chilled of water in evaporator to be frostbite

through the prevent frostbite temperature detected; auto control startup or shutdown of cooling fan

tower through the temperature of cooling in water detected; auto control overheat of the cooling water

in condenser through the temperature of cooling out water detected; auto adjust the capacity of

compressor through the press of evaporator and condense detected, so the unit can work in safe state

once compressor startup, besides comes protective signals , operating time should be at least 6

min(adjustable),although the temperature of chilled in water has reached unload shutdown

temperature after compressor stop, unit should be re-startup after at least 10 min(adjustable).

after unit startup, firstly open chilled water pump, then open cooling water pump, and then open the

cooling fan tower, at last control the startup or shutdown of compressor, adjust the capacity

accordingto chilled in water.

When unit shutdown, firstly shut down compressor, then close cooling fan tower, and then close

cooling water pump, at last close chilled water pump.

MICROPROCESSOR CONTROLLER

2.5 8 36.5 46.45 15 41 59 22 42 71.6 107.6 3.5 8 38.5 46.4

Flooded Screw Chiller Technical Sales Guide - Gree · LS 180 Model H Nb Water Chiller Nominal...

Documents

Transcript of Flooded Screw Chiller Technical Sales Guide - Gree · LS 180 Model H Nb Water Chiller Nominal...