Water Cooled Screw Chillers

Water-Cooled Screw Chiller

A i r C o n d i t i o n i n g S y s t e m

R134a 100 to 350RT

To become a leader in the competitive global market, LG has been divided into three groups, electronics and chemicals for LG, energy and machineries distribu- tion for GS, Industrial electric · electronic materials for LS based on their business specialties.

LS' main companies, such as LS Mtron, LS cable, LS industrial systems, LS-Nikko copper, Gaon cable, E1 and Kukdong City gas, are ranked as No.1 in their respective industry. However, LS won't just sit back, satisfied with being the best in Korea. We will pave the way for becoming the world's best in Industrial electric · electronics and material industry with the new CI, LS.

LS Mtron is No.1 machinery maker in Korea and its business fields are components & materials and machinery. Also, LS Mtron is creating new businesses particularly in component and materials industry. LS Mtron makes its best to accomplish the vision, 'Your No.1 Creative Partner' and be one of the world leaders with high technology and best level of service.

New Dream, New Start

Your best partner LS Cable is making afresh start as LS Mtron

Research &Development

Air-ConditioningSystem

Injection MoldingSystem

Tractor Components &Materials Business

4

MAIN CHARACTERISTICS

The high-performance screw chiller is designeddepending on 30 years research & developmentexperience of LS Air-Conditioning System.

High-performance compressor manufactured byspecialized manufacturer is adopted to ensure that the chiller is economical and durable with low vibration and low noise.

The primary and secondary selection function the double-head chiller compressor evenly used and hence the service life of entire machine is prolonged.

Highly integrated motherboard is adopted and hence the function is strong and reliable.

Advanced control algorithm is adopted to controlchiller in advance and hence avoid frequent stoppage protection of chiller.

We have set complete safety protection function in order to make chiller safely and reliably run.

The linkage control and remote monitoring function of peripheral equipments ensure that the chiller can run safely and the operation and monitoring are convenient.

The selection of excellent raw materials and fittings is the key to guaranteeing chiller quality.

The product is divided into flooded screw chillerSFWW and dry screw chiller SWW.

AIR

CO

ND

ITIO

NIN

G S

YS

TE

M

Model description

Model explanation

SFWW-320DAS-3YSThis is a flooded double screw chiller which is Water-cooled ,with R134a as refrigerant and made in LS Air-conditioning system (Shandong) Co., Ltd. It’s nominal capacity is 320USRT

S F W W X S A S 3 Y SX X

Power : 2-220V 50Hz, 3-380V 50Hz 4-440V 50Hz, 5-220V 60Hz 6-380V 60Hz, 7-440V 60Hz

Refrigerant : A-R134a

Compressor No. : S-1set, D-2sets, T-3sets, F-4sets

Evaporator : W-water cooled tube and shell type, P-plate exchanger

Condenser : W-water cooled tube and shell type, P-plate exchanger

evaporation mode : F-flooded

Semi-closed screw chiller

capacity : (RT)

Unit type : E- conversion, N- external oil distributor S-Iinner oil distributor, M-downward film type

Starting mode : S-direct start, Y-Y-, I-conversion start

Application : S-air-condition, L-low temperature

5

SPECIFICATION

L S W A T E R - C O O L E D S C R E W C H I L L E R

R134a (50Hz)

MODEL UNITS SFWW-100SAS

SFWW-110SAS

SFWW-120SAS

SFWW-140SAS

SFWW-160SAS

SFWW-180SAS

SFWW-230SAN

CApACITYUSRT 94.1 112.1 120.7 137.4 160.3 172.6 226.0

Kw 331.1 394.3 424.4 483.4 563.8 607.1 795.0104kcal/h 28.5 33.9 36.5 41.6 48.5 52.2 68.4

pOWER InpuT kw 67.6 79.1 85.0 97.5 109.9 118.3 154.9

COmp.

power - 3PH-380V-50HZ Rated Current A 113.7 133.0 142.8 163.8 184.8 198.9 260.5

Starting current A 265.3 310.3 333.2 382.3 431.2 464.1 607.8number SET 1

Starting mode - Y-∆

COOLIng WATER

T-Inlet /outlet °C 32-37 Flow m3/h 69 81 88 100 116 125 163

pressure kgf/cm2 0.58 0.57 0.59 0.60 0.58 0.61 0.63Diameter DN 100 100 100 125 125 125 150

CHILLED WATER

T-Inlet/outlet °C 12-7 Flow m3/h 57 68 73 83 97 104 137

pressure kgf/cm2 0.48 0.44 0.45 0.46 0.44 0.46 0.48Diameter DN 100 100 100 125 125 125 150

DIm.L mm 4300 4300 4300 4326 4326 4326 4351W mm 1521 1521 1521 1571 1571 1571 1627H mm 1636 1749 1749 1815 1815 1815 1964

WEIgHTTransporting ton 2.4 2.8 3.0 3.5 3.5 3.6 4.1

Running ton 2.6 3.2 3.4 3.9 3.9 3.9 4.7

REF.Weight kg 125 150 150 180 180 180 280

Type - R134a

FROzEn OIL

Volume L 18 23 23 28 28 28 95Trademark - CP-solest-220

MODEL UNITS SFWW-270SAN

SFWW-310SAN

SFWW-190DAS

SFWW-230DAS

SFWW-250DAS

SFWW-280DAS

SFWW-320DAS

SFWW-350DAS

CApACITYUSRT 264.8 308.0 188.3 224.2 246.2 274.9 320.6 345.2

kw 931.5 1083.2 662.2 788.7 865.8 966.7 1127.5 1214.2104kcal/h 80.1 93.1 56.9 67.8 74.4 83.1 96.9 104.4

pOWER InpuT kw 179.3 207.4 135.2 158.2 170.0 194.9 219.8 236.6

COmp.

power - 3PH-380V-50HZ Rated Current A 301.5 348.7 113.7*2 133.0*2 142.8*2 163.8*2 184.8*2 198.9*2

Starting current A 703.5 813.6 265.3*2 310.3*2 333.2*2 382.2*2 431.2*2 464.1*2number SET 1 2

Starting mode - Y-∆

COOLIng WATER

T-Inlet /outlet °C 32-37 Flow m3/h 191 222 137 163 178 200 232 249

pressure kgf/cm2 0.62 0.61 0.61 0.62 0.57 0.58 0.55 0.56Diameter DN 150 200 150 150 150 150 200 200

CHILLED WATER

T-Inlet/outlet °C 12-7 Flow m3/h 160 186 114 136 149 166 194 209

pressure kgf/cm2 0.47 0.47 0.42 0.44 0.43 0.47 0.45 0.46Diameter DN 150 200 150 150 150 150 200 200

DIm.L mm 4393 4393 4430 4430 4393 4393 4522 4522W mm 1846 1846 1681 1681 1785 1785 1891 1891H mm 2105 2105 1845 1845 1941 1941 1990 1990

WEIgHTTransporting ton 4.3 4.5 4.1 4.6 5.2 5.4 6.1 6.3

Running ton 4.9 5.1 4.4 4.9 5.6 5.8 6.5 6.7

REF.Weight kg 280 280 210 210 245 245 290 290

Type - R134a

FROzEn OIL

Volume L 114 114 36 46 46 56 56 56Trademark - CP-solest-220

1. 1RT = 3024kcal/h = 3.517kw, 1mH2o = 9.8kpa2. Fouling factor of water in condenser and evaporator is 0.086m2 k / kw3. Maximum pressure of chilled water and cooling water system 10kgf/cm2

4. Specifications subject to change without prior notice

6

SPECIFICATION

R134a (60Hz)

1. 1RT = 3024kcal/h = 3.517kw, 1mH2o = 9.8kpa2. Fouling factor of water in condenser and evaporator is 0.086m2 k / kw3. Maximum pressure of chilled water and cooling water system 10kgf/cm2

4. Specifications subject to change without prior notice

MODEL UNITS SFWW-110SAS SFWW-130SAS SFWW-145SAS SFWW-165SAS SFWW-190SAS SFWW-200SAS

CApACITY USRT 110.9 132.1 145.1 167.0 188.9 203.4

kw 390.1 464.7 510.2 587.25 664.3 715.5 104kcal/h 33.5 40.0 43.9 50.5 57.1 61.5

pOWER InpuT kw 80.1 93.7 100.7 115.5 130.3 140.2

COmp.

power - 3PH-380V-60Hz Rated Current A 134.7 157.6 169.2 194.1 219.0 235.6

Starting current A 314.3 367.7 394.8 452.9 511.0 549.7 number SET 1

Starting mode - Y-D

COOLIng WATER

T-Inlet /outlet °C 32-37 Flow m3/h 81 96 105 121 137 147

pressure kgf/cm2 0.80 0.84 0.90 0.79 0.82 0.91 Diameter DN 100 125 125 125 125 125

CHILLED WATER

T-Inlet/outlet °C 12-7 Flow m3/h 67 80 88 101 114 123


DIm. L mm 4290 4290 4290 4290 4290 4320 W mm 1200 1200 1200 1300 1300 1400 H mm 1800 1850 1850 1900 1900 1900

WEIgHT Transporting ton 2.8 3.0 3.5 3.5 3.6 3.8

Running ton 3.2 3.4 3.9 3.9 3.9 4.2 REF. Trademark - R134a

FROzEn OIL

Volume L 18 23 23 28 28 28 Trademark - CP-solest-220

MODEL UNITS SFWW-220DAS SFWW-260DAS SFWW-290DAS SFWW-330DAS SFWW-380DAS SFWW-410DAS

CApACITYUSRT 221.8 264.3 290.1 333.9 377.8 406.9

Kw 780.2 929.4 1020.4 1174.5 1328.6 1431.0 104kcal/h 67.1 79.9 87.7 101.0 114.2 123.0

pOWER InpuT kw 80.1*2 93.7*2 100.7*2 115.5*2 130.3*2 140.2*2

COmp.

power - 3PH-380V-60HzRated Current A 134.7*2 157.6*2 169.2*2 194.1*2 219.0*2 235.6*2

Starting current A 314.3*2 367.7*2 394.8*2 452.9*2 511.0*2 549.7*2number SET 2

Starting mode - Y-D

COOLIng WATER

T-Inlet /outlet °C 32-37Flow m3/h 162 192 210 242 273 294


CHILLED WATER

T-Inlet/outlet °C 12-7Flow m3/h 134 160 175 202 228 246

pressure kgf/cm2 0.63 0.65 0.65 0.66 0.66 0.67Diameter DN 150 150 150 200 200 200

DIm.L mm 4320 4320 4470 4470 4650 4650 W mm 1400 1400 1580 1580 1700 1700 H mm 1950 1950 2010 2010 2040 2040

WEIgHTTransporting ton 4.6 5.2 5.4 6.1 6.5 6.5

Running ton 4.9 5.6 5.8 6.5 6.9 6.9 REF. Trademark - R134a

FROzEn OIL

Volume L 36 46 46 56 56 56Trademark - CP-solest-220

7L S W A T E R - C O O L E D S C R E W C H I L L E R

INSTALLATION AND DIMENSION

Chiller room requirements

The air conditioner room should be located as near as possible to the cooling load center. For High-rise buildings with basement available for use, it should be located in the basement; for super high-rise building, it may be located at middle floor (technical equipment floor) in accordance with system division; for air conditioning modification or addition works, it may also be reconstructed outside air conditioning building or located at the roof or other place of air conditioning building, while it must be guaranteed that the building structures have enough bearing capability.

The equipments in the air conditioner room should be arranged closely to save covered building area. The equipment arrangement and pipe connection should accord with technological flow requirement and be easy to install, maintain and repair.

When the tube shell and the heat exchanger of chiller are arranged, the possibility to clean and replace tube nest should be considered. Generally, a space with length equal to chiller length will be left on one end of chiller. If there is no enough space, one end of chiller in the length direction may be directly faced to window with proper height for lighting or to gate with proper height.

The air-conditioner room should be made of Grade II refractory materials or incombustible materials with good sound insulation property. The room should have two exits as far as possible from each other, of which at least one should directly face to outside. Also, the direction of opening should be towards the outdoor.

please refer to Air conditioner Room Guaranteed Space for room height.

The host air conditioner in the central air conditioner room should be separated from pump room and control room and the repairing room and storage room should be arranged in accordance with practical conditions. If there are fuel absorption chiller or fuel central water heater in the air conditioner room, the idlest method is to obtain fuel from special oil depot through oil pipeline. If the fuel tank is placed in the room, then the floor arrangement should strictly follow relative fire codes and the house should be equipped with necessary fire-fighting equipments.

When the central air conditioner room is located in the basement, it Space between equipments in machinery room should be equipped with mechanical ventilating equipment and the least air displacement of such equipment should not less than 36.5G2/3(m3/H), where: G is the total cooling capacity of chiller. In order to reduce air displacement under non-emergency conditions, it is recommended to use multi-speed blower. The inlet and conduit of exhausting blower should be near to chiller with proper protection.

The central air conditioner room inside should be equipped with water discharging facilities and toilets and if available, with telephone. Also, emergency lighting should be taken into consideration.

The inflammable and explosive materials are not allowed to be stored in the air conditioner room except refrigerant existing in the chiller.

ITEMS SPACE (M)

Width of main channel and operation channel >1.5Distance between jut of chiller and switch-house >1.5Distance between jet of chiller >1.0Distance between chiller and wall >0.8Width of subordination channel >0.8Distance between side jut of the chiller >1.5Distance between sides of absorption chill and wall >1.2

1.

2.

3.

4.

5.

7.

8.

9.

6.

The design and location of central air conditioner room is a comprehensive work, which must be closely coordinated with architecture, structure, water supply and drainage, building electricity and other professional work.

Space between equipments in machinery room

8

INSTALLATION AND DIMENSION

Installation and size

TYPE MODEL A B C D E

R134a

(50Hz)

SFWW100SAS~SFWW120SAS 1500 3600 1500 1200 1000SFWW140SAS~SFWW310SAn 2000 3600 2000 1200 1000SFWW190DAS~SFWW350DAS 2500 2500 2000 1500 1500

R134a

(60Hz)

SFWW110SAS~SFWW130SAS 1500 3600 1500 1200 1000SFWW140SAS~SFWW360SAS 2000 3600 2000 1200 1000SFWW220DAS~SFWW410DAS 2500 3600 2000 1500 1500

Installation requirementsThe installation space should be considered when the chiller are installed in order that LS service personnel are convenient to dismantle and hoist compressors and other parts. The minimum space can be determined in accordance with the table below. For multiple chiller, the space between two chiller should be not less than 120% that of single chiller. If the room space is too small, please contact LS for consultation and solution.

During installation, special attention should be paid to :1. The water pump should be installed on the side of inlet of cooled water/cooling water, if it needs to install on the outlet side, please contact LS.2. The two sides of water pump should be installed with flexible connection to insulate pipe vibration. For water pump, the speed 2900RPM should be not chosen to the extent possible in case of resonance.


DIMENSION OF FLOODED TYPE SCREW CHILLER

R134a(50Hz) - Single compressor series

MODEL L W H E A B C D

SFWW100SAS 4300 1521 1636 563 683 443 485 695SFWW110SAS~120SAS 4300 1521 1749 613 650 410 510 700SFWW140SAS~180SAS 4326 1571 1815 663 658 418 485 695

10


R134a(50Hz) - Dual compressor series

Model L W H E A B C D

SFWW190DAS~SFWW230DAS 4430 1681 1845 718 730 430 550 830SFWW250DAS~SFWW280DAS 4393 1785 1941 770 840 540 615 875SFWW320DAS~SFWW350DAS 4522 1891 1990 823 840 490 567 867





SFWW230SAn 4351 1627 1964 718 730 430 550 830SFWW270SAn~SFWW310SAn 4393 1846 2105 798 867 567 540 840

12




SFWW110SAS 4290 1200 1800 613 625 385 668 792SFWW130SAS~145SAS 4290 1200 1850 663 650 410 703 523SFWW165SAS~190SAS 4290 1300 1900 663 673 433 728 518SFWW200SAS 4320 1400 1900 718 700 450 750 530



R134a(50Hz) - Dual compressor series


SFWW220DAS~SFWW260DAS 4320 1400 1950 718 730 430 833 650SFWW290DAS~330DAS 4470 1580 2010 770 805 455 900 710SFWW380DAS~410DAS 4650 1700 2040 823 805 455 900 755

14

FOUNDATION

R134a - Flooded screw chiller

notes:1. Floor installation is the standard installation mode of chiller. For floor installation, the rubber shock pad along with the chiller should be installed.2. For floor installation, please refer to building codes for floor requirements and fixation methods of foundation bolt.3. Spring damper should be installed when the chiller floor is installed, which should be noted in the contract to purchase during purchase of chiller.4. It should be guaranteed that the horizontal tolerance in the direction of the whole length and width of chiller should be less tan 3mm.5. After the chiller is leveled, the respective space of each spring damper should be not less than 6mm.

TYPE MODEL A B C D

R134a

(50Hz)

SFWW100SAS 4250 3824 1371 971SFWW110SAS ~SFWW120SAS 4250 3824 1471 1071SFWW140SAS ~SFWW180SAS 4250 3824 1571 1171SFWW230SAn 4250 3824 1681 1281SFWW270SAn~310SAn 4250 3824 1891 1491SFWW190DAS ~SFWW230DAS 4250 3824 1681 1281SFWW250DAS ~SFWW280DAS 4250 3824 1785 1385SFWW320DAS ~SFWW350DAS 4250 3824 1891 1491

R134a

(60Hz)

SFWW110SAS ~SFWW145SAS 4250 3824 1450 1017SFWW165SAS ~SFWW190SAS 4250 3824 1550 1121SFWW200SAS 4250 3824 1650 1225SFWW220DAS ~SFWW260DAS 4250 3824 1650 1225SFWW290DAS ~SFWW330DAS 4250 3824 1800 1385SFWW380DAS ~SFWW410DAS 4250 3824 1900 1491


PIPELINE AND ACCESSORY FACILITIES

Construction cautions1. For parts outside broken line, the customers will independently prepare materials and carry out construction.2. The water system pressure of evaporator and condenser of water chiller should be not more than 10kgf/cm2 and if so, the chiller is special type.3. All chiller should be equipped with special water pump and cooling water pump to the extent possible.4. The pipeline of cooled water and cooling water should be equipped with 10-mesh filter.5. In order for convenient management and maintenance of chiller, the following devices should be installed besides stop valves which are installed on respective pipeline of inlet/outlet of cooler water and cooling water: (1) Install thermometer and pressure gauge near the inlet/outlet of cooler water and cooling water (2) Install exhaust valve on respective pipeline of cooler water and cooling water6. The start and stop of peripheral equipments must be controlled by control system of water chiller to guarantee interlock protection.7. The power line inducted into starting cabinet of each compressor and connecting wire of peripheral equipments will be supplied by users and please ask for electric diagram of water chiller from the Company during design and construction

The wire between the starting cabinet and the major motor, the starting cabinet and control cabinet, the staring cabinet and electric actuating elements, the control cabinet and such sensors as pressure, temperature, etc have been connected when the chiller leave factory; the parts within the broken line in the field wiring diagram above will be supplied by the users.

notes :1. The interlock contact of this part will be supplied by the users and it has no voltage (dry contact) and the maximum impedance is 100.

2. The contact of this part is used for starting/stopping peripheral equipments, which is lower than 250VAC 0.1A.

3. 250VAC 0.1A The contact of this part is used for indicating progressive running status, which is lower than 250VAC 0.1A.

4. The signal of this part will be supplied by the users.

Pipeline and accessory facilities

Electric wiring

COM252CO52C

SW1

114

300301302303304305

224T2

T2

223

220

117COM2

COM252CO52C

SW1

114

300301302303304305

224T2

T2

223

220

117COM2

www.lsaircondition.com

Overseas Sales Office in KoreaAir conditioning Overseas Business Dept.6F Sungji Building, 1505-17, Gwanyang-dong, Dongan-gu, Anyang-si, Gyeonggi-do, KoreaTel. 82-31-450-3531~3538 Fax : 82-31-450-3540

Factory in China266109, Yu-Huangling Industrial Area,Xiazhuang,Chengyang District, Qingdao, ChinaTel. 86-532-8096-5648Fax. 86-532-8096-5688

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Specifications subject to change without prior notice. ACOS-01-3000-0901 / Printed in Korea

Documents

Water Cooled Screw Chillers