chiller-6chw3-01b[1] lg

60Hz/R134a60~400RT

6CHW3-01B(Replaces 6CHW3-01A)

WATER-COOLED SCREW CHILLER

WATER-COOLED SCREW CHILLER

1. Model Line Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3. Construction Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4. Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5. Options & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7. ARI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

9. Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

10. Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

11. Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

12. Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

13. Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

14. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

15. Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

16. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

17. Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Water-Cooled Screw Chiller60~400RT

1. Model Line Up

CHILLER 60Hz/R134a _ 1

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Nominal size 1 Compressor Type 2 Compressors Type

60

70

80

90

100

110

120

140

150

180

200

220

260

300

340

400

※ These models are standard model line-up. If you want to order special model which is outside of standard line-up,contact LGE.

RCWW0609AAA

RCWW0709AAA

RCWW0809AAA

RCWW0909AAA

RCWW1009AAA

RCWW1109AAB

RCWW1209AAB

RCWW1409AAB

RCWW1509AAB

RCWW1809AAB

RCWW2009AAB

RCWW2209AAB

RCWW2609AAB

RCWW3009AAB

RCWW3409AAB

RCWW4009AAB

Identification RuleR C W 200 9 AAW

Product Type : C = Chiller

Chiller Type : W = Water cooled

Compressor Type : W = Screw Compressor

Refrigerant type & code : R = R134a

Development sequence

A

Nominal size-Tons

Ex) 060-58.0 070-68.3

A: 1 CompressorB: 2 Compressors

1 : 115 / 60 / 1 2 : 220 / 60 / 1 3 : 208-230 / 60 / 15 : 200-220 / 50 / 1 6 : 220-240 / 50 / 1 7 : 100 / 50, 60 / 19 : 380 / 60 / 3 A : 220 / 50 / 3 B : 220 / 60 / 3 C : 575 / 60 / 3 D : 440-460 / 60 / 3 E : 265 / 60 / 1 F : 200 / 50, 60 / 1 G : 220-240 / 50, 60 / 1 L : 380-415 / 50, 60 / 3 M : 3,300 / 60 / 3 N : 6,600 / 60 / 3 J : 6,000 / 60 / 3 K :10,000 / 60 / 3P : 380 / 50 / 3 Q : 400 / 50 / 3 R: 415 / 50 / 3S : 380-400/50/3 T : 440/60/3

Ice storage / BMS type

A : High Efficiency ModelB : Compact Model

Unit Voltage (V / Hz / Ø)

Model Type

A : General / Modbus PortB : General / BACnet PortC : General / LonWork PortD : Ice Storage / Modbus PortE : Ice Storage / BACnet PortF : Ice Storage / LonWork Port

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2 _ CHILLER 60Hz/R134a

2. Nomenclature

Control box

Condenser

Compressor

Evaporator

Economizer

Oil separator

Safety valves

Power box

HMI

Drier

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3. Construction Details

High efficiency, High reliabilityThe RCWW® series is a kind of water-cooled spray screw chiller produced by LGE Corporation. Because of thespecial structure design, the chiller has high efficiency and high reliability.

Compressor• Semi-hermetical twin-rotor screw compressor.• Direct-drive, low speed/RPM for high efficiency and high reliability.• Only three moving parts, resulting in high reliability with simple solution.• Field serviceable compressor and easy maintenance.• Precise rotor tip clearance.• The world’s advanced patent screw tooth with low noise, smooth operation long life advantages.• A refrigerant dispersing cooling device is set internally for compressor cooling, which uses return-refrigerant

cooling.• Years of research and testing. The LG air cooled screw chiller has amassed thousands of hours of testing, and

conditions beyond normal air conditioning applications.

Optimized dedicated motor for R134a with high efficiencyMade of premium grade, low-loss core steel with the special slot design, the motors of R134a dedicated com-pressors can gain the highest efficiency with low power consumption. Besides, different winding for specificvoltage and frequency requirement contributes to the best power factor and excellent performance.

Constructional design of dedicated screw compressorThe screw compressor is characterized by a very compact design. Most of inner dimensions have been totallymodified considering displacement volume, size of compression chamber, length & profile of rotors, oil separa-tor specification and oil piping rearrangement, etc. to ensure consistency and cost effectiveness of the compres-sor.

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4. Features & Benefits

Compression ProcessAs shown in picture below, during rotation of the rotors the meshing shifts from the suction side to the dis-charge side. The meshing rotors enclose a working space, which is continuously reduced as it moves in the axialdirection. This causes a V-shaped lobe space to form between each of the male and female lobes. This lobe spaceincreases to a maximum size (suction and sealing process). As the rotors rotate further, the new meshing on thesuction side closes the V-shaped lobe space. The lobe space is then constantly reduced by continuous intermeshing of the lobes (compression process).The reduction in lobe space takes place on the lower side of the rotors towards the discharge side.The volume is steadily reduced and it is thereby compressed in the sealed condition. As soon as the peaks of therotor teeth are free to the outlet port, the vapor is discharged to the high-pressure side and flows to the oil sepa-rator where the high-pressure gas will be separated from the lubrication oil. The size and geometry of the dis-charge port determine the so called “internal volume ratio (Vi)” of the compressor. This ratio must have adefined relationship to operate pressure ratio to avoid losses in efficiency due to under or over compression.

Improves evaporating temperature• Spray type evaporator. • Increases low-pressure technique • High efficiency heat exchange copper pipe.

Improves cooling capacity• Double compression technique.• Improves evaporating temperature.

Improves heat exchange effect• Unique condenser design. • High efficiency heat exchange tube.

Decreases condensing temperature • Choosing special compressor cylinder volume ratio. • Improves heat exchange effect.

Operating conditions range are:• Cooling water inlet : 75°F ~ 95°F(23.9°C ~ 35.0°C)• Chilled water outlet : 40°F ~ 60°F(4.4°C ~ 15.6°C)

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Applications• Standard RS-485, RS-422 industrial interface.• Infinity group control unit.• Built-in Web function—unit’s operating state can be observed from the Intel network.• Expandable GMS message functions—unit can send phone message to show its operation.

Unit performance testingLG began promoting factory performance tests for air-cooled chillers and water-cooled chillers, to show westand behind the products we design and build.The benefits of a performance test include verification of performance, prevention of operational problems, andassurance of a smooth start-up. Only a performance test conducted in a laboratory or laboratory grade facilitywill confirm both performance and operation of a specific chiller.Mostly factory performance tests go smoothly. If a problem occurs, LG personnel easily correct them and chilleris shipped to job site.When a factory performance test is requested, the test can be conducted at the specified, design conditions. Thetest facility has the capability to control ambient test conditions to assure our customers that our chillers will per-form as predicted.

[Water-cooled run test facility shown with an RCWW 200 ton unit]

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High entering condenser water temperature Option• The High entering condenser water temperature option consists of special control logic to permit High enter-

ing condenser water temperature (Up to 95°F / 35°C) operation.

Wye-delta compressor start type(standard)• For low inrush current and reduced starting torque.

Suction service valves(standard)• Provide a service valve on the suction line of each refrigerant circuit to facilitate compressor servicing.

Flow switch(standard)• Supplied separately to be wired and installed on the evaporator water piping and condenser water piping.

Flooded type evaporator• The flooded type evaporator which have the higher evaporating temperature of refrigerant than direct expan-

sion can increase the performance. The distributor can make the uniform refrigerant flow.

Eco-friendly refrigerant R134a• System designed with Eco-friendly refrigerant R134a which does not harm the ozone layer & protects the

environment.The HCFC (R22) series cannot produce any more from 2020 according to the Montreal Protocol for protectionof ozone layer.

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■ Standard accessories1. Y Delta compressors starter.2. Flow switch – supplied separately to be wired and installed on the evaporator water piping and condensing

water piping.3. Suction line service valve for compressor servicing.4. Standard MODBUS connectivity for building management system

■ Option & Accessories1. Low leaving chilled water temperature. -4°F~40°F(-20°C~4.4°C)2. Spring isolator/Standard Neoprene pad (field installed)3. Discharge line shut off valves – Installed on the discharge port of the compressor.4. High entering condenser water temperature - Above 95°F / 35°C.5. Soft starter.6. Unit Sound Attenuator.7. Electric and control accessories as provided in various options.

(1) Standard terminal block with dual or single point power connection with no capacitor for power correction or capacitor for power correction.

(2) Circuit breakers with dual or single point power connection with no capacitor for power correction or capacitor for power correction..

(3) Unit-mounted non-fused disconnect switch with circuit breaker and dual or single point power con-nection with no capacitor for power correction or capacitor for power correction.

8. For 2 compressors type model, dual points power connection is standard and single point power connectionis optionally provided, see table below.

Note: These options should be attached in factory.

point terminal point terminal

1 comp. all 1 single 1 - -

2 comp. all 2 dual 2 single 160Hz

Type Hz Type RT No. ofComp.

Standard Option

Watercooled

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5. Options & Accessories

Unit controls of the LGE water cooled screw chiller include following benefits and features.

1. Sequence of controlsWhen the product starts to run, the condenser water pump and chilled water pump run simultaneously. In thesame time, the magnetic valve 1 is turned on for the minimum low capacity operation.Condenser water flow and chilled water flow are also checked a few seconds later after water pump run.In case of having no problem with both water flow, startup delay will be activated. Approximately after oneminute delay outlet temperature of chilled water is checked whether the water temperature is reached upenough to operate the compressor.When the PLC decides to operate the compressor, compressor starts with wye start and then delta start after afew seconds. During the starting process of compressor, while the compressor contactor is checking for prob-lem, the solenoid valve for oil is opened in order to achieve proper oil circulation.After starting process, normal control starts. The normal control include capacity control, refrigerant mid pres-sure control for motor cooling, alarm control.When the chiller is decided to turn off, compressor load of the compressor is changed to minimum load positionby changing magnetic valve 1 and turning off magnetic valve 2 and magnetic valve 3. After the delay for shut-down, the compressor is stopped. When the compressor is stopped, the water pumps will still run for a periodin order to protect the compressor from frequent restart or withdraw latent heat from evaporator of chiller.

2. Adaptive chiller control and higher level protection.The latest chiller control technologies provide enhanced operations of the chiller. The chiller control system isbased on recent PLC (Programmable Logic Controller) technology. Because the PLC is designed to be compati-ble with several electromagnetic interference and also compatible with severe ambient conditions, the unit hasreliable controllability in any conditions. The adaptive chiller control is designed to operate the unit to withstand severe conditions and maintain itsoperation. Good examples are capacity override controls in case of high chilled water temperature.Along with the adaptive control, the control also provides higher level protection through multiple protectivedevices. For example triple protective devices are used for the detection of abnormal oil circulation. The controlsystem continues to monitor the hazardous conditions of the unit, and shutdown the unit to protect the unitsafely when any condition meets safety limit.

3. Rich human machine interfaceMenu structure of HMI machine is indicated in picture. It consists of 7 menus about User interface. HMI istouch screen, and user can move to the menu which user wants, if user clicks the menu item with his hand. UserSetting, Parameter Setting and Function Setting of menu limit is accessed by certification code system.

4. Seamless power supply monitoringSuperior power supply monitoring function of the control system is enabled by protective function against highvoltage, low voltage, power loss, phase reverse, and phase imbalance. The superior function of safe power sup-ply to the unit is provided as standard.

5. Standard wye-delta start type and optional soft start typeThe wye-delta start provides reduced starting current by 1/3. The LGE chiller is equipped with the wye-deltastart of the compressor. Optionally, soft start type shall be provided for soft start of the compressor by linearvoltage increase.

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6. Controls

6. Controls


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6. Standard MODBUS connectivity and optional BACnet and LonWorks connectivity.The control system of the LGE chiller provides measure to be integrated in modern BMS system seamlessly.Because the control system provides MODBUS connectivity by standard, no additional cost for the BMS integra-tion is needed for the system integration based on the MODBUS. Specially, BACnet or LonWorks can be appliedto the system on the request of customer as option.

7. Versatile electric and control options satisfying customer’s requirements.Customer can have various option for the electric and control system.

For example:(1) Standard terminal block with dual point power connection and no capacitor for power correction.(2) Circuit breakers with single point power connection and capacitor for power correction.(3) Unit-mounted non-fused disconnect switch with circuit breaker and dual point power connection with no

capacitor for power correction.

These all options are factory installed as per customer requirement.Please refer table below for more options.

Option 1Content Option 2 Option 3

Electric and control

No capacitor for power factor correction

Capacitor for power factor correction











Dual point power connection

Single point powerconnection





Standard terminal block

Circuit breakers

Unit-mounted non-fuseddisconnect switch withcircuit breaker

7. ARI capacity ratings


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• COP-Coefficient of Performance

• EER-Energy Efficiency Ratio

• IPLV-Integrated Part Load Value

• Cooling Conditions : Condenser water inlet temperature is 29.4°C(85°F), condenser water flow is 0.054 l/s per kW(3.0gpm/ton), chilledwater leaving temperature is 6.7°C(44°F) and chilled water flow is 0.043 l/s per kW(2.4gpm/ton).

❈ All data in this table is rated in accordance with ARI Standard 550/590.

Capacity Full Load IPLV Cooler FlowRate

CondenserFlow Rate

Cooler PressureDrop

CondenserPressure Drop

InputPower

kWTons kW l/s gpmCOP EERCOP EER l/s gpmkPa Ft wg kPa Ft wg

RCWW0609AAA

RCWW0709AAA

RCWW0809AAA

RCWW0909AAA

RCWW1009AAA

60.7 214 42.8 5.0 17.03 5.83 19.89 9.2 146 63 21.0 11.5 183 85 28.3

71.8 252 48.7 5.2 17.68 6.05 20.66 10.9 172 100 33.4 13.6 216 18 6.1

82.2 289 55.7 5.2 17.70 6.06 20.68 12.4 197 116 38.7 15.6 247 19 6.4

89.4 314 60.1 5.2 17.84 6.11 20.85 13.5 214 114 38.2 17.0 269 19 6.3

98.4 346 67.5 5.1 17.50 5.99 20.44 14.9 236 117 39.0 18.7 296 19 6.4

1 Compressor Type

Unit(1Comp. Type)

2 Compressors Type

• COP-Coefficient of Performance

• EER-Energy Efficiency Ratio

• IPLV-Integrated Part Load Value

• Cooling Conditions : Condenser water inlet temperature is 29.4°C(85°F), condenser water flow is 0.054 l/s per kW(3.0gpm/ton), chilledwater leaving temperature is 6.7°C(44°F) and chilled water flow is 0.043 l/s per kW(2.4gpm/ton).

❈ All data in this table is rated in accordance with ARI Standard 550/590.

Capacity Full Load IPLV Cooler FlowRate

CondenserFlow Rate

Cooler PressureDrop

CondenserPressure Drop

InputPower

kWTons kW l/s gpmCOP EERCOP EER l/s gpmkPa Ft wg kPa Ft wg

RCWW1109AAB 113 396 78 5.1 17.32 6.10 20.81 17.0 270 21.4 339

RCWW1209AAB 122 430 86 5.0 17.06 6.01 20.49 18.5 293 23.2 368

RCWW1409AAB 144 508 98 5.2 17.69 6.23 21.25 21.8 346 27.4 435

RCWW1509AAB 152 536 102 5.3 17.93 6.31 21.54 23.0 365 28.9 459

RCWW1809AAB 179 628 120 5.2 17.86 6.29 21.45 27.0 428 33.9 538

RCWW2009AAB 199 698 136 5.1 17.51 6.16 21.04 30.0 476 37.7 597

RCWW2209AAB 226 794 152 5.2 17.82 6.27 21.41 34.1 541 42.9 680

RCWW2609AAB 268 942 180 5.2 17.86 6.29 21.45 40.5 642 50.9 806

RCWW3009AAB 304 1070 200 5.4 18.25 6.43 21.93 46.0 729 57.8 916

RCWW3409AAB 352 1238 230 5.4 18.37 6.47 22.06 53.2 844 66.9 1060

RCWW4009AAB 407 1432 266 5.4 18.37 6.47 22.06 61.6 976 77.3 1226

41

41

40

50

50

50

62

66

112

112

131

13.6

13.6

13.5

16.7

16.8

16.8

20.9

22.0

37.4

37.5

43.7

28

27

28

34

34

34

41

49

79

79

99

9.3

9.1

9.3

11.4

11.5

11.4

13.6

16.3

26.4

26.5

33.1

Unit(2Comp. Type)

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7. ARI capacity ratings

1 Compressor Type

Unit : RCWW Series (1 Comp. Type) ModelGeneral Unit DataUnit Capacity at ARI Conditions TonsRefrigerant Charge, R134a lbsOil Charge gal.Shipping Weight lbsOperating Weight lbsCompressorsCompressor Type

Quantity per Chiller EACondenserMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmEvaporator, FloodedMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmDimensionsLength inchWidth inchHeight inch

RCWW0609AAA RCWW0709AAA RCWW0809AAA RCWW0909AAA RCWW1009AAA

60.7 71.8 82.2 89.4 98.4 154 187 209 238 265 4.8 4.8 4.8 5.3 5.3

5,732 5,952 6,482 6,746 7,2315,997 6,261 6,834 7,143 7,672

1 1 1 1 1

145 145 145 145 145 232 232 232 232 232 80 80 100 100 100

91.4 108.0 123.7 134.5 148.1 365.7 432.1 494.7 538.0 592.5

145 145 145 145 145 232 232 232 232 232 80 80 100 100 100

72.8 86.0 98.5 107.1 117.9 291.2 344.1 394.0 428.4 471.8

99.61 113.39 120.08 120.08 120.08 38.58 38.58 39.37 39.37 39.37 72.83 72.83 74.80 74.80 78.74

NOTES:1. Account for unit operating conditions :

Evaporator : Leaving water temperature is 44℉(6.7℃)Condenser : Entering water temperature is 85℉(29.4℃)Evaporator fouling factor 0.0001 ft2·hr·F/ Btu (0.0186 ㎡·℃/kW)Condenser fouli

Semi-HermeticalTwin Screw





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8. Specifications English Unit


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8. Specifications SI Unit

1 Compressor Type

Unit : RCWW Series (1 Comp. Type) ModelGeneral Unit DataUnit Capacity at ARI Conditions kWRefrigerant Charge, R134a kgOil Charge l

Shipping Weight kgOperating Weight kgCompressorsCompressor Type

Quantity per Chiller EACondenserMaximum Water Side Pressure MpaMaximum Refrigerant Side Pressure MpaWater Connections DNMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/sEvaporator, FloodedMaximum Water Side Pressure MpaMaximum Refrigerant Side Pressure MpaWater Connections DNMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/sDimensionsLength mmWidth mmHeight mm

RCWW0609AAA RCWW0709AAA RCWW0809AAA RCWW0909AAA RCWW1009AAA

214 252 289 314 346 70 85 95 108 12018 18 18 20 20

2,600 2,700 2,940 3,060 3,2802,720 2,840 3,100 3,240 3,480

1 1 1 1 1

1 1 1 1 11.6 1.6 1.6 1.6 1.680 80 100 100 1005.8 6.8 7.8 8.5 9.3 23.1 27.3 31.2 33.9 37.4

1 1 1 1 11.6 1.6 1.6 1.6 1.680 80 100 100 1004.6 5.4 6.2 6.8 7.4 18.4 21.7 24.9 27.0 29.8

2,530 2,880 3,050 3,050 3,050 980 980 1,000 1,000 1,000

1,850 1,850 1,900 1,900 2,000


Evaporator : Leaving water temperature is 44℉(6.7℃)Condenser : Entering water temperature is 85℉(29.4℃)Evaporator fouling factor 0.0001 ft2·hr·F/ Btu (0.0186 ㎡·℃/kW)Condenser fouling factor 0.00025 ft2·hr·F/ Btu (0.043 ㎡·℃/kW)

2. Working voltage : 380V – 3Phase – 60Hz, 3Phase 5 Wire3. Evaporator and condenser connection pipe connect with Flange4. Unit conversion 1kW= 860kcal/h, 1RT = 3.517kW5. Optional 21 Bar(300 PSIG) Waterside available







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Quantity per Chiller EACondenserMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmEvaporator, FloodedMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmDimensionsLength inchWidth inchHeight inch

RCWW1109AAB RCWW1209AAB RCWW1409AAB RCWW1509AAB

112.6 122.3 144.5 152.4 287 320 364 397 6.6 6.6 7.9 7.9

9,612 10,053 11,244 11,50810,075 10,582 11,861 12,147

2 2 2 2

145 145 145 145 232 232 232 232100 100 100 150

169.5 184.0 217.4 229.4 677.9 736.1 869.6 917.6

145 145 145 145 232 232 232 232100 100 100 150

135.0 146.5 173.1 182.7 539.8 586.2 692.5 730.7

135.83 135.83 135.83 143.70 66.14 66.14 66.93 66.93 62.99 64.96 66.14 66.14




Semi-Hermetical TwinScrew




2 Compressors Type



Quantity per Chiller EACondenserMaximumWater Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmEvaporator, FloodedMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmDimensionsLength inchWidth inchHeight inch


178.6 198.5 225.8 267.9 474 529 584 688 9.2 10.0 10.6 10.6

12,500 13,558 14,088 15,43213,272 14,418 15,058 16,579

2 2 2 2

145 145 145 145 232 232 232 232150 150 150 150

268.8 298.7 339.8 403.1 1075.1 1194.9 1359.2 1612.6

145 145 145 145 232 232 232 232150 150 150 150

214.0 237.9 270.6 321.0 856.1 951.5 1082.4 1284.1

143.70 143.70 153.54 160.63 70.87 72.83 74.02 78.74 68.90 73.23 73.23 74.80








2 Compressors Type

Water-Cooled Screw




Quantity per Chiller EACondenserMaximumWater Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmEvaporator, FloodedMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigWater Connections DNMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpmDimensionsLength inchWidth inchHeight inch

RCWW3009AAB RCWW3409AAB RCWW4009AAB

304.3 352.1 407.2 794 926 1,058 11.9 13.2 14.5

16,711 18,166 20,61318,012 19,665 22,333

2 2 2

145 145 145 232 232 232200 200 200

457.9 529.8 612.9 1831.7 2119.3 2451.4

145 145 145 232 232 232 200 200 200

364.6 421.9 488.0 1458.6 1687.6 1952.1

185.04 187.01 194.88 81.89 86.61 87.80 79.53 87.40 87.40

Semi-Hermetical Twin Screw Semi-Hermetical Twin Screw Semi-Hermetical Twin Screw




2 Compressors Type

Water-Cooled Screw



Evaporator : Leaving water temperature is 44℉(6.7℃)Condenser : Entering water temperature is 85℉(29.4℃)

Evaporator fouling factor 0.0001 ft2·hr·F/ Btu (0.0186 ㎡·℃/kW)

Condenser fouling factor 0.00025 ft2·hr·F/ Btu (0.043 ㎡·℃/kW)2. Working voltage : 380V – 3Phase – 60Hz, 3Phase 5 Wire3. Evaporator and condenser connection pipe connect with Flange4. Unit conversion 1kW= 860kcal/h, 1RT = 3.517kW5. Optional 21 Bar(300 PSIG) Waterside available

2 Compressors Type


Water-Cooled Screw




Quantity per Chiller EACondenserMaximum Water Side Pressure MpaMaximum Refrigerant Side Pressure MpaWater Connections DINMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/sEvaporator, FloodedMaximum Water Side Pressure MpaMaximum Refrigerant Side Pressure MpaWater Connections DINMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/sDimensionsLength mmWidth mmHeight mm


396 430 508 536 130 145 165 180 25 25 30 30

4,360 4,560 5,100 5,2204,570 4,800 5,380 5,510

2 2 2 2

1 1 1 11.6 1.6 1.6 1.6100 100 100 15010.7 11.6 13.7 14.5 42.8 46.4 54.9 57.9

1 1 1 11.6 1.6 1.6 1.6100 100 100 1508.5 9.2 10.9 11.5 34.1 37.0 43.7 46.1

3,450 3,450 3,450 3,650 1,680 1,680 1,700 1,700 1,600 1,650 1,680 1,680










2 Compressors Type

Water-Cooled Screw






628 698 794 942 215 240 265 312 35 38 40 40

5,670 6,150 6,390 7,0006,020 6,540 6,830 7,520

2 2 2 2

1 1 1 11.6 1.6 1.6 1.6150 150 150 15017.0 18.8 21.4 25.4 67.8 75.4 85.8 101.7

1 1 1 11.6 1.6 1.6 1.6150 150 150 15013.5 15.0 17.1 20.3 54.0 60.0 68.3 81.0

3,650 3,650 3,900 4,080 1,800 1,850 1,880 2,000 1,750 1,860 1,860 1,900







Water-Cooled Screw




RCWW3009AAB RCWW3409AAB RCWW4009AAB

1070 1238 1432 360 420 480 45 50 55

7,580 8,240 9,3508,170 8,920 10,130

2 2 2

1 1 11.6 1.6 1.6200 200 20028.9 33.4 38.7 115.6 133.7 154.7

1 1 11.6 1.6 1.6200 200 20023.0 26.6 30.8 92.0 106.5 123.2

4,700 4,750 4,950 2,080 2,200 2,230 2,020 2,220 2,220

Semi-Hermetical Twin Screw Semi-Hermetical Twin Screw Semi-Hermetical Twin Screw





2 Compressors Type


Water-Cooled Screw

9. Dimensional Drawings

NOTES: 1. R

ecom

men

ded

serv

ice

clea

ranc

e ar

ound

mac

hine

is 9

00 m

m(3

5.4

in).

2. U

pper

con

nect

ion

pipe

of c

onde

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or e

vapo

rato

r is

wat

er o

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pipe

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ater

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w s

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ory

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apor

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.4.

Dim

ensi

ons

are

in m

m(in

ch).

Uni

t : R

CW

W S

erie

s

Out

line

Dim

ensi

on

A(L

) B

(H)

C(W

) D

E

0609

AA

Ain

ch99

.61

72.8

338

.58

73.1

519

.09

mm

2,53

01,

850

980

1,85

848

5

0709

AA

Ain

ch11

3.39

72.8

338

.58

88.9

019

.09

mm

2,88

01,

850

980

2,25

848

5

0809

AA

Ain

ch12

0.08

74.8

039

.37

92.8

319

.09

mm

3,05

01,

900

1,00

02,

358

485

0909

AA

Ain

ch12

0.08

74.8

039

.37

92.8

319

.09

mm

3,05

01,

900

1,00

02,

358

485

1009

AA

Ain

ch12

0.08

78.7

439

.37

92.8

321

.06

mm

3,05

02,

000

1,00

02,

358

535


Water-Cooled Screw


NOTES: 1. R

ecom

men

ded

serv

ice

clea

ranc

e ar

ound

mac

hine

is 9

00 m

m(3

5.4

in).

2. U

pper

con

nect

ion

pipe

of c

onde

nser

or e

vapo

rato

r is

wat

er o

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pipe

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ater

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.4.

Dim

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ons

are

in m

m(in

ch).

Uni

t : R

CW

W S

erie

s

Out

line

Dim

ensi

on

A(L

) B

(H)

C(W

) D

E

1109

AA

Bin

ch13

5.83

62.9

966

.14

104.

6544

.09

mm

3,45

01,

600

1,68

02,

658

1,12

0

1209

AA

Bin

ch13

5.83

64.9

666

.14

104.

6545

.28

mm

3,45

01,

650

1,68

02,

658

1,15

0

1409

AA

Bin

ch13

5.83

66.1

466

.93

104.

6549

.21

mm

3,45

01,

680

1,70

02,

658

1,25

0

1509

AA

Bin

ch14

3.7

66.1

466

.93

112.

5249

.21

mm

3,65

01,

680

1,70

02,

858

1,25

0

1809

AA

Bin

ch14

3.7

68.9

70.8

711

2.52

53.5

4m

m3,

650

1,75

01,

800

2,85

81,

360

2009

AA

Bin

ch14

3.7

73.2

372

.83

112.

5253

.54

mm

3,65

01,

860

1,85

02,

858

1,36

0


Water-Cooled Screw


NOTES: 1. R

ecom

men

ded

serv

ice

clea

ranc

e ar

ound

mac

hine

is 9

00 m

m(3

5.4

in).

2. U

pper

con

nect

ion

pipe

of c

onde

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or e

vapo

rato

r is

wat

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ater

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Flo

w s

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ory

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alle

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out

let o

f con

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d ev

apor

ator

.4.

Dim

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ons

are

in m

m(in

ch).

Uni

t : R

CW

W S

erie

s

Out

line

Dim

ensi

on

A(L

) B

(H)

C(W

) D

E

2209

AA

Bin

ch15

3.54

73.2

374

.02

120.

3957

.09

mm

3,90

01,

860

1,88

03,

058

1,45

0

2609

AA

Bin

ch16

0.63

74.8

078

.74

128.

2759

.06

mm

4,08

01,

900

2,00

03,

258

1,50

0


Water-Cooled Screw


NOTES: 1. R

ecom

men

ded

serv

ice

clea

ranc

e ar

ound

mac

hine

is 9

00 m

m(3

5.4

in).

2. U

pper

con

nect

ion

pipe

of c

onde

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or e

vapo

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ater

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fact

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out

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apor

ator

.4.

Dim

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ons

are

in m

m(in

ch).

Uni

t : R

CW

W S

erie

s

Out

line

Dim

ensi

on

A(L

) B

(H)

C(W

) D

E

3009

AA

Bin

ch18

5.04

79.5

381

.89

151.

8961

.02

mm

4,70

02,

020

2,08

03,

858

1,55

0

3409

AA

Bin

ch18

7.01

87.4

086

.61

151.

7366

.93

mm

4,75

02,

220

2,20

03,

854

1,70

0

4009

AA

Bin

ch19

4.88

87.4

087

.80

159.

6166

.93

mm

4,95

02,

220

2,23

04,

054

1,70

0


Water-Cooled Screw

10. Selection Procedure LG Chiller selection program will help to select LG water cooled screw chiller quickly and eas-ily.To select RCWW® series chiller, use the LAT’s chiller selection program or follow one of theprocedures below.

1) Determine RCWW® series unit size and operating conditions required tomeet given capacity at given conditions.

2) From Cooling capacities table and pressure drop curves, determine operatingdata for selected unit.

Given:

Capacity ......................................................98.4 Tons

Leaving Chilled Water Temp. ............................... 44°F

Chilled Water Flow.................................. 2.4 gpm/Ton

Entering Condenser Water Temp. ........................ 85°F

Condenser Water Flow .............................3.0 gpm/Ton

Evaporator Fouling Factor ............................. 0.00010

Condenser Fouling Factor ............................... 0.00025

NOTE: For other than the above water Flow, contactnearest LG office.

Given:

Capacity ........................................................ 346 kW

Leaving Chilled Water Temp................................6.7°C

Chilled Water Flow ............................ 0.043 l/s per kW

Entering Condenser Water Temp. ......................29.4°C

Condenser Water Flow........................0.054 l/s per kW

Evaporator Fouling Factor ...................................0.018

Condenser Fouling Factor .................................. 0.043

NOTE: For other than the above water Flow, contactnearest LG office.

English SI

Unit ............................................. RCWW1009AAA

Capacity ............................................... 98.4 Tons

Power Input ................................................68 kW

Chilled Water Flow .................................. 236 gpm

Chilled Water Pressure Drop ......................39 ft wg

Condenser Water Flow .......………………… 296 gpm

Condenser Water Pressure Drop .............. 6.4 ft wg

Unit ............................................. RCWW1009AAA

Capacity................................................... 346 kW

Power Input ............................................... 68 kW

Chilled Water Flow.................................... 15.0 l/s

Chilled Water Pressure Drop ..................... 117 kPa

Condenser Water Flow .............................. 18.7 l/s

Condenser Water Pressure Drop ................. 19 kPa

English SI


Water-Cooled Screw

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

11. Performance Data

LEGEND Cap. – Capacity, Tons of RefrigerationCond – Condenser

kW – Compressor Motor Input Power at Rated VoltageLCWT – Leaving Chilled-Water Temperature (°F)

0609AAA 59.8 37.5 142.2 167.6 56.1 42.4 133.5 162.2 52.2 48.1 124.1 156.6 48.2 53.9 114.7 151.1

0709AAA 70.7 42.6 168.1 196.9 66.3 48.2 157.7 190.4 61.7 54.7 146.6 183.6 57.0 61.3 135.5 177.0

0809AAA 80.9 48.8 192.5 225.4 76.0 55.2 180.6 217.9 70.6 62.6 167.9 210.2 65.2 70.1 155.1 202.6

0909AAA 88.0 52.6 209.3 244.9 82.6 59.5 196.4 236.7 76.8 67.5 182.6 228.2 71.0 75.7 168.7 219.9

1009AAA 96.9 59.1 230.5 270.5 91.0 66.9 216.3 261.5 84.6 75.9 201.0 252.3 78.1 85.0 185.8 243.3

0609AAA 62.2 37.7 147.8 173.3 58.4 42.6 138.9 167.7 54.4 48.2 129.3 161.9 50.4 54.0 119.7 156.2

0709AAA 73.5 42.9 174.6 203.7 69.0 48.4 164.1 196.9 64.3 54.9 152.8 189.9 59.5 61.4 141.5 183.0

0809AAA 84.1 49.1 200.0 233.2 79.0 55.4 187.9 225.4 73.6 62.8 174.9 217.4 68.1 70.3 162.0 209.5

0909AAA 91.5 52.9 217.5 253.3 85.9 59.8 204.4 244.8 80.0 67.7 190.3 236.1 74.1 75.8 176.2 227.4

1009AAA 100.7 59.5 239.5 279.7 94.6 67.1 225.0 270.4 88.1 76.1 209.5 260.9 81.6 85.2 194.0 251.6

0609AAA 64.6 38.0 153.6 179.3 60.7 42.8 144.4 173.4 56.6 48.4 134.5 167.2 52.4 54.1 124.6 161.2

0709AAA 76.3 43.2 181.5 210.7 71.8 48.7 170.7 203.6 66.9 55.1 159.0 196.2 61.9 61.5 147.2 188.8

0809AAA 87.4 49.5 207.8 241.2 82.2 55.7 195.4 233.1 76.5 63.0 182.0 224.6 70.9 70.4 168.6 216.2

0909AAA 95.1 53.4 226.0 262.1 89.4 60.1 212.5 253.2 83.2 68.0 197.9 243.9 77.1 75.9 183.3 234.7

1009AAA 104.7 59.9 248.9 289.4 98.4 67.5 234.0 279.7 91.7 76.3 218.0 269.6 84.9 85.3 201.9 259.6

0609AAA 65.8 38.1 156.5 182.3 61.9 42.9 147.2 176.3 57.7 48.5 137.2 170.0 53.5 54.1 127.2 163.9

0709AAA 77.8 43.4 185.0 214.3 73.2 48.8 174.0 207.0 68.2 55.2 162.2 199.5 63.2 61.6 150.4 192.0

0809AAA 89.1 49.6 211.8 245.3 83.8 55.8 199.2 237.0 78.1 63.1 185.7 228.4 72.4 70.5 172.2 219.8

0909AAA 96.9 53.5 230.3 266.5 91.1 60.3 216.7 257.4 84.9 68.1 201.9 248.0 78.8 76.0 187.2 238.6

1009AAA 106.7 60.1 253.6 294.3 100.3 67.7 238.6 284.3 93.5 76.5 222.4 274.1 86.7 85.4 206.2 263.9

0609AAA 67.1 38.3 159.5 185.3 63.1 43.0 150.1 179.1 58.9 48.6 140.0 172.8 54.6 54.2 129.9 166.5

0709AAA 79.3 43.5 188.4 217.9 74.6 49.0 177.3 210.4 69.6 55.3 165.4 202.8 64.6 61.7 153.5 195.2

0809AAA 90.7 49.8 215.8 249.4 85.4 56.0 203.0 240.9 79.7 63.2 189.4 232.1 73.9 70.5 175.7 223.4

0909AAA 98.7 53.7 234.7 271.0 92.9 60.4 220.8 261.7 86.6 68.2 206.0 252.1 80.4 76.1 191.1 242.6

1009AAA 108.7 60.4 258.4 299.2 102.3 67.9 243.1 289.0 95.4 76.6 226.8 278.6 88.5 85.5 210.5 268.3

0609AAA 69.6 38.6 165.4 191.5 65.5 43.3 155.8 185.1 61.2 48.8 145.5 178.5 56.9 54.4 135.2 172.0

0709AAA 82.2 43.9 195.5 225.1 77.5 49.2 184.2 217.4 72.3 55.5 172.0 209.5 67.2 61.9 159.8 201.6

0809AAA 94.1 50.2 223.8 257.8 88.7 56.3 210.9 248.9 82.8 63.5 196.9 239.8 76.9 70.8 182.9 230.8

0909AAA 102.4 54.2 243.4 280.0 96.4 60.7 229.3 270.4 90.1 68.5 214.1 260.5 83.7 76.4 199.0 250.6

1009AAA 112.7 60.8 268.0 309.2 106.2 68.2 252.5 298.6 99.2 77.0 235.8 287.8 92.1 85.8 219.1 277.1

0609AAA 72.2 38.9 171.5 197.8 68.0 43.6 161.7 191.2 63.6 49.0 151.2 184.4 59.2 54.5 140.8 177.6

0709AAA 85.3 44.2 202.7 232.6 80.4 49.6 191.1 224.6 75.2 55.8 178.7 216.4 70.0 62.0 166.3 208.3

0809AAA 97.6 50.6 232.1 266.3 92.0 56.7 218.8 257.1 86.1 63.8 204.6 247.7 80.1 71.0 190.4 238.4

0909AAA 106.2 54.6 252.4 289.3 100.1 61.2 238.0 279.3 93.6 68.8 222.5 269.1 87.1 76.6 207.1 258.9

1009AAA 116.9 61.3 278.0 319.4 110.2 68.7 262.0 308.5 103.1 77.3 245.1 297.3 95.9 86.0 228.1 286.2

Unit : RCWWSeries

1comp Type

LCWT (°F) UNIT SIZE

CONDENSER ENTERING WATER TEMPERATURE(°F)75 85 95 105

RCWW RatingsAll performance data is based on : 1. Chilled water flow is 0.043 l/s per kW(2.4gpm/ton), condenser water flow is 0.054 l/s per kW(3.0gpm/ton)2. Cooler fouling factor of 0.0001 ft2·hr·°F/ Btu (0.0186 m2·°C/kW)3. Condenser fouling factor of 0.00025 ft2·hr·°F/ Btu (0.043 m2·°C/kW)4. 2°C (3.6°F) Subcooling.5. Refrigerant 134a 1 Compressor Type

40

42

44

45

46

48

50


Water-Cooled Screw


Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

1109AAB 110.7 68.2 263.2 309.3 104.0 77.4 247.3 299.6 97.0 87.9 230.6 290.1 90.0 98.7 213.9 280.7 1209AAB 120.2 75.2 285.8 336.6 112.9 85.3 268.5 326.2 105.3 97.0 250.4 316.0 97.7 108.8 232.3 305.9 1409AAB 142.0 85.7 337.6 395.6 133.4 97.2 317.2 383.0 124.4 110.5 295.8 370.6 115.4 124.0 274.4 358.3 1509AAB 149.8 89.2 356.2 416.5 140.8 101.2 334.7 403.1 131.3 115.0 312.1 389.9 121.8 129.1 289.6 376.8 1809AAB 175.5 105.0 417.4 488.3 164.9 119.0 392.2 472.7 153.8 135.3 365.7 457.2 142.7 151.8 339.3 441.9 2009AAB 195.1 119.0 463.9 544.3 183.3 134.9 435.9 527.1 171.0 153.3 406.5 510.2 158.6 172.1 377.1 493.4 2209AAB 221.9 132.9 527.7 617.6 208.5 150.7 495.9 597.8 194.5 171.4 462.4 578.3 180.4 192.3 428.9 559.0 2609AAB 263.3 157.4 626.0 732.5 247.4 178.5 588.3 709.0 230.7 203.0 548.6 685.8 214.0 227.8 508.9 662.9 3009AAB 299.1 174.9 711.1 829.4 281.0 198.4 668.2 802.3 262.1 225.5 623.1 775.6 243.1 253.1 578.0 749.2 3409AAB 346.0 201.2 822.8 958.8 325.2 228.1 773.1 927.4 303.2 259.3 721.0 896.3 281.3 291.0 668.8 865.6 4009AAB 400.3 232.7 951.7 1109.0 376.1 263.8 894.3 1072.7 350.7 299.9 833.9 1036.7 325.4 336.6 773.6 1001.2 1109AAB 115.1 68.6 273.6 320.0 108.3 77.7 257.4 310.0 101.1 88.2 240.3 299.9 93.9 98.8 223.2 290.0 1209AAB 125.0 75.7 297.1 348.3 117.6 85.6 279.5 337.4 109.8 97.2 261.0 326.7 102.0 108.9 242.4 316.1 1409AAB 147.6 86.2 351.0 409.3 138.9 97.6 330.2 396.2 129.7 110.8 308.3 383.2 120.4 124.1 286.4 370.3 1509AAB 155.8 89.7 370.4 431.1 146.6 101.6 348.4 417.1 136.8 115.3 325.3 403.3 127.1 129.2 302.2 389.5 1809AAB 182.5 105.6 434.0 505.3 171.7 119.5 408.3 489.1 160.3 135.6 381.1 472.8 148.9 152.0 354.0 456.8 2009AAB 202.9 119.7 482.3 563.2 190.8 135.4 453.8 545.3 178.2 153.7 423.6 527.6 165.5 172.3 393.5 510.0 2209AAB 230.8 133.7 548.7 639.1 217.1 151.4 516.2 618.5 202.7 171.8 481.9 598.1 188.3 192.5 447.6 577.8 2609AAB 273.8 158.4 650.9 758.0 257.6 179.3 612.4 733.6 240.5 203.4 571.7 709.3 223.3 228.0 531.0 685.2 3009AAB 311.0 176.0 739.4 858.4 292.6 199.2 695.6 830.3 273.1 226.1 649.4 802.2 253.7 253.3 603.2 774.5 3409AAB 359.8 202.4 855.5 992.3 338.5 229.0 804.8 959.7 316.0 260.0 751.4 927.1 293.5 291.3 697.9 894.9 4009AAB 416.2 234.0 989.5 1147.8 391.5 264.9 930.9 1110.0 365.5 300.7 869.1 1072.4 339.5 336.9 807.2 1035.1 1109AAB 119.6 69.1 284.4 331.1 112.6 78.0 267.8 320.5 105.2 88.4 250.1 309.8 97.7 99.0 232.3 299.3 1209AAB 129.9 76.1 308.9 360.4 122.3 86.0 290.8 348.9 114.2 97.5 271.5 337.4 106.1 109.2 252.3 326.1 1409AAB 153.5 86.8 364.9 423.6 144.5 98.0 343.5 409.8 134.9 111.1 320.8 395.9 125.4 124.4 298.1 382.2 1509AAB 161.9 90.3 385.0 446.1 152.4 102.0 362.4 431.4 142.4 115.6 338.5 416.6 132.3 129.5 314.5 402.0 1809AAB 189.7 106.2 451.1 522.9 178.6 120.0 424.6 505.8 166.8 136.0 396.6 488.5 155.0 152.3 368.5 471.5 2009AAB 210.9 120.4 501.4 582.8 198.5 136.0 472.0 563.9 185.4 154.2 440.8 545.0 172.2 172.6 409.5 526.3 2209AAB 239.9 134.6 570.3 661.3 225.8 152.0 536.9 639.7 210.9 172.3 501.4 617.9 195.9 192.9 465.9 596.3 2609AAB 284.6 159.4 676.6 784.4 267.9 180.0 637.0 758.7 250.2 204.1 594.8 732.8 232.5 228.5 552.7 707.2 3009AAB 323.3 177.1 768.6 888.3 304.3 200.0 723.5 858.7 284.2 226.7 675.7 829.0 264.0 253.9 627.8 799.5 3409AAB 374.0 203.6 889.2 1026.9 352.1 230.0 837.1 992.6 328.8 260.7 781.7 958.0 305.5 291.9 726.4 923.8 4009AAB 432.6 235.5 1028.6 1187.8 407.2 266.0 968.3 1148.1 380.3 301.5 904.2 1108.1 353.4 337.6 840.2 1068.5 1109AAB 121.9 69.3 289.9 336.8 114.8 78.2 273.1 325.9 107.3 88.6 255.2 315.1 99.8 99.1 237.3 304.3 1209AAB 132.4 76.4 314.8 366.5 124.7 86.2 296.5 354.8 116.5 97.7 277.1 343.1 108.4 109.3 257.7 331.6 1409AAB 156.4 87.1 372.0 430.8 147.3 98.2 350.3 416.7 137.7 111.3 327.4 402.6 128.0 124.6 304.4 388.6 1509AAB 165.1 90.6 392.5 453.7 155.5 102.2 369.6 438.7 145.3 115.8 345.4 423.7 135.1 129.6 321.2 408.9 1809AAB 193.4 106.6 459.8 531.9 182.1 120.3 433.0 514.4 170.2 136.3 404.7 496.8 158.3 152.5 376.3 479.5 2009AAB 214.9 120.8 511.1 592.8 202.4 136.3 481.3 573.5 189.2 154.5 449.8 554.2 175.9 172.9 418.3 535.2 2209AAB 244.5 135.0 581.4 672.7 230.3 152.4 547.5 650.5 215.2 172.6 511.7 628.4 200.1 193.2 475.8 606.4 2609AAB 290.1 159.9 689.7 797.8 273.2 180.4 649.6 771.6 255.3 204.4 607.0 745.3 237.4 228.8 564.5 719.2 3009AAB 329.5 177.7 783.4 903.6 310.3 200.5 737.8 873.4 290.0 227.1 689.5 843.1 269.7 254.2 641.2 813.1 3409AAB 381.2 204.3 906.4 1044.6 359.1 230.6 853.7 1009.6 335.5 261.2 797.8 974.4 312.0 292.3 741.9 939.6 4009AAB 441.0 236.3 1048.5 1208.3 415.3 266.6 987.5 1167.8 388.1 302.1 922.8 1127.1 360.9 338.1 858.1 1086.7 1109AAB 124.3 69.5 295.5 342.5 117.1 78.4 278.4 331.4 109.5 88.7 260.3 320.3 101.9 99.3 242.3 309.4 1209AAB 134.9 76.7 320.8 372.6 127.1 86.4 302.3 360.7 118.9 97.9 282.7 348.8 110.6 109.5 263.1 337.1 1409AAB 159.4 87.3 379.0 438.1 150.2 98.5 357.1 423.7 140.5 111.5 333.9 409.3 130.7 124.7 310.8 395.1 1509AAB 168.2 90.9 399.9 461.4 158.5 102.5 376.8 446.1 148.2 116.1 352.3 430.8 137.9 129.8 327.9 415.7 1809AAB 197.1 107.0 468.5 540.9 185.7 120.6 441.5 523.0 173.6 136.5 412.8 505.1 161.6 152.7 384.2 487.5 2009AAB 219.0 121.2 520.8 602.7 206.4 136.7 490.7 583.1 193.0 154.7 458.8 563.5 179.6 173.1 427.0 544.1 2209AAB 249.2 135.5 592.4 684.0 234.8 152.7 558.2 661.4 219.5 172.9 522.0 638.9 204.3 193.5 485.7 616.6 2609AAB 295.6 160.4 702.8 811.3 278.5 180.9 662.2 784.5 260.4 204.8 619.2 757.7 242.4 229.1 576.3 731.2 3009AAB 335.8 178.3 798.3 918.8 316.4 201.0 752.2 888.1 295.8 227.6 703.4 857.3 275.3 254.6 654.6 826.7 3409AAB 388.5 205.0 923.7 1062.3 366.0 231.1 870.3 1026.5 342.3 261.7 813.8 990.8 318.5 292.7 757.4 955.3 4009AAB 449.4 237.1 1068.4 1228.7 423.4 267.3 1006.6 1187.4 395.9 302.7 941.4 1146.0 368.5 338.6 876.1 1105.0

Unit : RCWWSeries

2comp Type



RCWW RatingsAll performance data is based on : 1. Chilled water flow is 0.043 l/s per kW(2.4gpm/ton), condenser water flow is 0.054 l/s per kW(3.0gpm/ton)2. Cooler fouling factor of 0.0001 ft2·hr·°F/ Btu (0.0186 m2·°C/kW)3. Condenser fouling factor of 0.00025 ft2·hr·°F/ Btu (0.043 m2·°C/kW)4. 2°C (3.6°F) Subcooling.5. Refrigerant 134a 2 Compressor Type

40

42

44

45

46


Water-Cooled Screw

LEGEND Cap. – Capacity, Tons of RefrigerationCond – Condenser

kW – Compressor Motor Input Power at Rated VoltageLCWT – Leaving Chilled-Water Temperature (°F)

2 Compressor Type


Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

Cap. InputkW

CoolerFlow Rate

(gpm)

Cond Flow Rate

(gpm)

1109AAB 129.0 70.0 306.7 354.0 121.6 78.8 289.2 342.4 113.8 89.1 270.6 330.8 106.0 99.5 252.0 319.3 1209AAB 140.1 77.2 333.1 385.2 132.1 86.9 314.0 372.7 123.6 98.2 293.8 360.2 115.1 109.7 273.6 347.8 1409AAB 165.5 87.9 393.5 452.9 156.0 99.0 371.0 437.9 146.0 111.9 347.1 422.8 136.0 125.0 323.3 407.8 1509AAB 174.6 91.5 415.2 477.0 164.6 103.0 391.4 461.1 154.0 116.5 366.2 445.0 143.4 130.1 341.1 429.1 1809AAB 204.6 107.7 486.4 559.2 192.9 121.2 458.6 540.5 180.5 137.0 429.1 521.8 168.1 153.1 399.6 503.1 2009AAB 227.4 122.0 540.6 623.1 214.4 137.4 509.7 602.6 200.6 155.3 476.9 581.9 186.8 173.5 444.2 561.5 2209AAB 258.7 136.4 615.0 707.2 243.9 153.5 579.8 683.6 228.2 173.6 542.5 659.9 212.5 193.9 505.2 636.4 2609AAB 306.9 161.5 729.6 838.8 289.3 181.8 687.9 810.8 270.7 205.6 643.6 782.6 252.1 229.7 599.4 754.7 3009AAB 348.6 179.4 828.8 950.1 328.6 202.0 781.4 917.9 307.5 228.4 731.1 885.5 286.4 255.2 680.9 853.4 3409AAB 403.3 206.4 958.9 1098.4 380.2 232.3 904.0 1061.1 355.8 262.6 845.9 1023.5 331.3 293.4 787.8 986.2 4009AAB 466.5 238.7 1109.2 1270.5 439.8 268.7 1045.7 1227.4 411.5 303.8 978.5 1183.9 383.2 339.4 911.2 1140.7 1109AAB 133.9 70.5 318.3 365.9 126.3 79.2 300.4 354.0 118.3 89.4 281.3 341.7 110.2 99.8 262.1 329.6 1209AAB 145.3 77.8 345.6 398.2 137.2 87.4 326.2 385.3 128.4 98.6 305.4 372.1 119.7 110.0 284.6 359.0 1409AAB 171.7 88.6 408.3 468.2 162.1 99.6 385.3 452.7 151.7 112.3 360.8 436.8 141.4 125.3 336.3 421.0 1509AAB 181.2 92.2 430.8 493.1 171.0 103.6 406.6 476.7 160.1 116.9 380.7 459.8 149.2 130.4 354.8 443.0 1809AAB 212.3 108.5 504.7 578.1 200.4 121.9 476.4 558.8 187.6 137.6 446.0 539.1 174.8 153.5 415.7 519.5 2009AAB 235.9 123.0 561.0 644.1 222.7 138.2 529.5 622.9 208.5 155.9 495.7 601.2 194.3 173.9 462.0 579.6 2209AAB 268.4 137.4 638.1 731.1 253.3 154.4 602.3 706.7 237.2 174.3 563.9 681.8 221.0 194.4 525.6 657.0 2609AAB 318.4 162.8 757.1 867.1 300.5 182.9 714.6 838.2 281.4 206.4 669.0 808.6 262.2 230.2 623.5 779.2 3009AAB 361.7 180.8 859.9 982.2 341.4 203.2 811.7 949.0 319.6 229.3 760.0 915.0 297.9 255.8 708.3 881.2 3409AAB 418.5 208.0 995.0 1135.6 395.0 233.7 939.1 1097.1 369.8 263.7 879.3 1057.6 344.7 294.1 819.5 1018.3 4009AAB 484.0 240.5 1150.9 1313.5 456.9 270.2 1086.3 1269.0 427.8 304.9 1017.1 1223.3 398.7 340.2 947.9 1177.9

Unit : RCWWSeries

2comp Type



48

50


Water-Cooled Screw

12. Pressure Drop

Note: For flow out of this range, consult LG.

Condenser water pressure drop (SI Unit) 1 Compressor

60

60

40

60

80

100

120

140

160

180

5 7 9 11 13 15 17

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

0

15

30

45

60

100 150 200 250 300

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

Condenser water pressure drop (English Unit)


Water-Cooled Screw

12. Pressure Drop


Condenser water pressure drop (SI Unit)


5

10

15

20

25

30

35

40

5 10 15 20 25 30

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

70 80 90 100

0

3

6

9

12

15

100 200 300 400 500

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

70 80 90 100

1 Compressor


Water-Cooled Screw

12. Pressure Drop




0

20

40

60

80

100

10 20 30 40 50 60 70 80

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

110 120

140

150

180 200

220

260

0

5

10

15

20

25

30

35

200 400 600 800 1000 1200

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

110 120

140

150

180 200

220

260

2 Compressor


Water-Cooled Screw

12. Pressure Drop




40

80

120

160

200

40 50 60 70 80 90 100 110

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a] 300 350

400

0

10

20

30

40

50

60

70

500 700 900 1100 1300 1500 1700 1900

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

] 300 350

400

2 Compressor


Water-Cooled Screw

12. Pressure Drop


Chilled water pressure drop (SI Unit)

Chilled water pressure drop (English Unit)

30

60

90

120

150

6 8 10 12 14 16

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

60

10

20

30

40

50

100 120 140 160 180 200 220

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

60

1 Compressor


Water-Cooled Screw

12. Pressure Drop




50

100

150

200

250

5 10 15 20 25

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

70

80 90 100

10

30

50

70

90

100 150 200 250 300 350

Water Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

] 70

80 90 100

1 Compressor


Water-Cooled Screw

12. Pressure Drop




0

20

40

60

80

100

120

140

160

10 20 30 40 50 60

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

110 120

140

150

180 200

220 260

0

10

20

30

40

50

0 200 400 600 800 1000

Wate Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

110 120

140

150

180 200

220 260

2 Compressor


Water-Cooled Screw

12. Pressure Drop




50

100

150

200

250

300

30 45 60 75 90

Water Flow [l/s]

Pre

ssu

re D

rop

[kP

a]

300 350

400

0

20

40

60

80

100

400 600 800 1000 1200 1400 1600

Wate Flow [gpm]

Pre

ssu

re D

rop

[ft

wg

]

300 350

400

2 Compressor


Water-Cooled Screw

13. Piping Diagrams

76

, S

eo

ng

sa

n-d

on

g, C

ha

ng

wo

n C

ity,

Gye

on

gn

am

,6

41

-71

3, K

ore

a

DW

G N

AM

E : W

ate

r coole

d S

cre

w C

hill

er's P

ipin

g D

iagra

m

MO

DE

L N

AM

E : -

DA

TE

: -

LG

Ele

ctr

on

ics

S

6,7

Eje

cto

r fo

r O

il R

etu

rn

Eva

po

rato

r

Filt

er

Drie

r8

Sh

ut-

off v

alv

e(A

ng

le v

alv

e)

Ch

eck v

alv

e

11

Eco

no

miz

er

(Fla

sh

ga

s ta

nk)

So

len

oid

va

lve

Sig

ht g

lass

Insu

latio

n

Re

lief va

lve

DE

SC

RIP

TIO

N

□ L

EG

EN

D Oil

he

ate

r

SY

MB

OL

109

Exp

an

sio

n D

evic

es

5O

il se

pa

rate

r

4O

il F

ilte

r

3E

xp

an

sio

n D

evic

e

2C

on

de

nse

r

1C

om

pre

sso

r

S

DP

WF

T

T

WF

T

T

HP

HP

T

OF

OL

OH

Hig

h p

ressure

sw

itch

HP

Lo

w p

ressu

re s

witch

LP

Oil

flo

w s

witch

OF

AF

Wa

ter

flow

sw

itch

WF

An

ti-f

ree

zin

g s

witch

AF

Te

mp

era

ture

se

nso

rT

Oil

leve

l se

nso

rO

L

Diffe

ne

nt p

ressu

re s

witch

DP

1

2

3

4

5

67

8

9

10

11

Hig

h P

ressu

re G

au

ge

Lo

w P

ressu

re G

au

ge

Mu

ffle

r

HP

LP MOH

NO

DE

SC

RIP

TIO

N

M

LP

LP

1 Co

mpr

esso

r Ty

pe


Water-Cooled Screw

13. Piping Diagrams

76, S

eong

san-

dong

, Cha

ngw

on C

ity, G

yeon

gnam

,64

1-71

3, K

orea

DW

G N

AM

E :

Wat

er c

oole

d S

crew

Chi

ller's

Pip

ing

Dia

gram

MO

DE

L N

AM

E :

-D

ATE

: -

LG E

lect

roni

cs

S

6,7

Eje

ctor

for O

il R

etur

n

Eva

pora

tor

Filte

r Drie

r8

Shu

t-off

valv

e(A

ngle

val

ve)

Che

ck v

alve

11E

cono

miz

er (F

lash

gas

tank

)

Sol

enoi

d va

lve

Sig

ht g

lass

Insu

latio

n

Rel

ief v

alve

DE

SC

RIP

TIO

N

□ L

EG

EN

D Oil

heat

er

SY

MB

OL

109

Exp

ansi

on D

evic

es

5O

il se

para

ter

4O

il Fi

lter

3E

xpan

sion

Dev

ice

2C

onde

nser

1C

ompr

esso

r

Hig

h pr

essu

re s

witc

hH

P

Low

pre

ssur

e sw

itch

LP

Oil

flow

sw

itch

OF

Wat

er fl

ow s

witc

hW

F

Ant

i-fre

ezin

g sw

itch

AF

Tem

pera

ture

sen

sor

T

Oil

leve

l sen

sor

OL

Diff

enen

t pre

ssur

e sw

itch

DP

Hig

h P

ress

ure

Gau

ge

Low

Pre

ssur

e G

auge

Muf

fler

HP LP MOH

NO

DE

SC

RIP

TIO

N

S

DP

WF

T

T

WF

T

T

HP

HP

T

OF

OL

OH

AF

1

2

3

4

5

67

8

9

11

1

M

MLP

LPH

P

LP

S

SS

SS

1010

SO

F

2 Co

mpr

esso

rs T

ype


Water-Cooled Screw

14. Wiring Diagrams

SM

PS

L N

-V+

V

2627

24VDC-P

24VDC-G

S1: COMD OUT WATER TEMP

S2: COND IN WATER TEMP

S3: EVAP OUT WATER TEMP

S4: EVAP IN WATER TEMP

S5: COMP1 DISCHARGE TEMP

1011

1213

1415

1617

1819

3132

3334

3536

3739

4041

4243

4445

26

OIL FLOW-1

INT69-1

FW1FW2

REMOTE RUN

AI1

+F.

G24

GA

I1-

AI2

+A

I2-

AI3

+A

I3+

AI4

+A

I4-

AI5

+A

I5-

AI6

+IO

1IO

2IO

3IO

4IO

5IO

6IO

7IO

8IO

9I1

0I1

1I1

2I1

3I1

4I1

5I1

6

CO

MO

01O

02O

03O

04O

05O

06O

07O

08O

09O

10O

11O

12O

13O

14O

15O

16C

OM

7174

7578

784

8683

EM

RG

HM

IU

NIT

SC

80-F

X: M

AIN

CO

NT

RO

L U

NIT

AI6

-24

V24

G

46

OIL LEVEL

LPD

HP

LP

ANTI-FREEZE

P1P2

R1

EMRG

24+

M1

MV

1M

V2

SV

1FN

P1

P2

ALM

TRANSMITTERFROM CT1

EX

TE

RN

AL

EQ

UIP

ME

NT

S

P1

P2

RE

MO

TE

RU

NFN

P1

P2

ALM

TO

WE

R F

AN

CO

W P

UM

PC

HW

PU

MP

ALA

RM

4347

4947

832

842

101

286

2

2726

220V

4 2

M1

M2

M3

FR1

49

854

2

SV

2M

V3

767

R3

R3

101

2223

AI7

+A

I7-

AI8

+A

I8-

72

M2M

3

73

M3M

2

38

5E-1

1

NF

B

L0

M1

F2

CC

H1

3

4

R1

SW

1F

1

29

R1

EM

RG

R3

30

2

RE

MO

TE

ST

OP

MA

NU

AL

102

R S T N

VO

LTA

GE

M

ON

ITO

RIN

G(5

E)

LN 220VAC

FG

380VAC3P4W

21

838 26

47

65F3

F4F5

2 4

1 2

111

TO

MA

IN C

ON

TR

OL

UN

IT

2425

42

112

CT

1114

24

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

)

M6

T1

T2

T3

T1

T2

T3

L1L2

L3L1

L2L3

FR

2

CO

MP

2

WV

UX

Y Z

TO

MA

IN C

ON

TR

OL

UN

IT

M5

M4

NL

DT

OH

603

605

21

56

78

3726

604

CF

1

TH

C1

9

2627

DR

YC

ON

TAC

TD

RY

CO

NTA

CT

220V

AC

PO

WE

RE

D22

0VA

CP

OW

ER

ED

220V

AC

PO

WE

RE

D22

0VA

CP

OW

ER

ED

RS

T

5

8788

D+

D-

GN

D

3 2 5

+-

Inst

ruct

ion

Sig

n

F1-

F6

CC

H1

NF

B

L0 R1,

2

SM

PS

SW

1

TH

C1

CF

1

CF

2

S1-

S5

CT

1,2

SC

80-F

X

HM

I uni

t

HP

1

LP1

FR

OH

DT

INT

69

M1

M2

M3

EN

RG

FU

FW

1

FW

2

RC

MV

1

MV

2

SV

CO

MP

OS

1

OS

2

LPD

P1,

P2

5E EX

T

TR

AN

S

FN

Fus

e

Oil

Hea

ter

No

Fus

e S

witc

h

Pow

er In

dica

tor

Lam

p

Ass

ist R

elay

Pow

er S

witc

h

Mod

el O

ptio

n S

witc

h

Inne

r Tem

pera

ture

Con

trol

ler

C/B

ox H

eat D

issi

patio

n Fa

n

Pow

er B

ox H

eat D

issi

patio

n Fa

n

Tem

pera

ture

Sen

sor

Cur

rent

Tra

nsdu

cer

PLC

Con

trol

ler

Pro

-fac

e To

uch

Scr

een

Hig

h V

olta

ge S

witc

h

Low

Vol

tage

Sw

itch

Com

p. O

ver

Load

Pro

tect

or

Com

p. In

ner T

empe

ratu

re P

rote

ctor

Com

p. D

isch

arge

Tem

pera

ture

Sen

sor

Com

p. In

tern

al P

rote

ctor

Mai

n C

onta

ctor

Δ C

onta

ctor

Y C

onta

ctor

Em

erge

ncy

But

ton

Free

zing

Sw

itch

Wat

er F

low

Sw

itch

Hot

Wat

er F

low

Sw

itch

Rem

ote

Sw

itch

Com

p. L

oadi

ng V

alve

Com

p. U

nloa

ding

Val

ve

Oil

Sep

arat

or S

olen

oid

Val

ve

Com

pres

sor

Oil

Leve

l Sw

itch

Oil

Flo

w S

witc

h

Hig

h-Lo

w P

ress

ure

Gra

dien

t Sw

itch

Wat

er P

ump

Con

tact

or

Con

vers

e P

hase

Pro

tect

or

Out

er A

larm

Con

nect

or

380/

220

Tran

sfor

mer

Coo

ling

Tow

er F

an C

onne

ctor

1 Co

mpr

esso

r Ty

pe

Not

e: 1. F

ield

mod

ific

atio

ns o

r ad

dit

ions

mus

t be

in c

ompl

ianc

e w

ith

nati

onal

ele

ctri

cal c

ode

as w

ell a

s al

l app

licab

le c

odes

and

spe

cifi

cati

ons.

2. R

efer

to c

erti

fied

dim

ensi

on d

raw

ing

for

exac

t loc

atio

ns o

f the

mai

n po

wer

and

con

trol

pow

er e

ntra

nce

loca

tion

s.


Water-Cooled Screw

14. Wiring Diagrams

S1: COMD OUT WATER TEMP

S2: COND IN WATER TEMP

S3: EVAP OUT WATER TEMP

S4: EVAP IN WATER TEMP


1011

1213

1415

1617

1819

2223

3132

3334

3536

3739

4041

4243

4445

26

OIL FLOW-1

INT69-1

FW1FW2

REMOTE RUN

AI1

+A

I1-

AI2

+A

I2-

AI3

+A

I3+

AI4

+A

I4-

AI5

+A

I5-

AI6

+IO

1IO

2IO

3IO

4IO

5IO

6IO

7IO

8IO

9I1

0I1

1I1

2I1

3I1

4I1

5I1

6

CO

MO

01O

02O

03O

04O

05O

06O

07O

08O

09O

10O

11O

12O

13O

14O

15O

16C

OM

7174

7578

784

8683

EM

RG

SC

80-F

X: M

AIN

CO

NT

RO

L U

NIT

AI6

-24

V24

G

46

OIL LEVEL

LPD

HP

LP

ANTI-FREEZE

P1P2

R1

EMRG

M1

MV

1M

V2

SV

1FN

P1

P2

ALM

TRANSMITTERFROM CT1

EX

TE

RN

AL

EQ

UIP

ME

NT

S

P1

P2

RE

MO

TE

RU

NFN

P1

P2

ALM

TO

WE

R F

AN

CO

W P

UM

PC

HW

PU

MP

ALA

RM

4347

4947

832

842

101

286

2

M1

M2

M3

FR1

49

854

2

SV

2M

V3

767

R3

R3

101


2425

AI7

+A

I7-26

27

AI8

+A

I8-TRANSMITTER

FROM CT2

CO

MO

17O

18O

19O

20O

21O

22O

23O

24

9194

9598

M4

MV

4M

V5

SV

4S

V5

MV

6

967

72

M2M

3

73

M3M

2

92

M5M

6

93

M6M

5

38

5E-1

5152

5354

5759

OIL FLOW-2

INT69-2

I17

I18

I19

I20

I21

I22

I23

I24

I25

I26

I27

I28

I29

I30

I31

I32

24V

24G

M4

M5

M6

FR2

58

SV

6

80

SV

3

79

1

NF

B

L0 CF

2

M1

F2

CC

H1

TH

C2

9

3

4

R1

SW

1F

1

29

R1

EM

RG

R3

30

2

RE

MO

TE

ST

OP

MA

NU

AL

102

R S T N

VO

LTA

GE

M

ON

ITO

RIN

G(5

E-2

)LN 220VAC

FG

380VAC3P4W

2

1 2

111

18

58 264

7

65F3

F4F5

TO

MA

IN C

ON

TR

OL

UN

IT

2425

42

112

CT

1

1114

24

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

-1)

M3

T1

T2

T3

T1

T2

T3

L1L2

L3L1

L2L3

FR

1

CO

MP

1

WV

UX

Y Z

TO

MA

IN C

ON

TR

OL

UN

IT

M2

M1

NL

DT

OH

600

602

21

56

78

3726

2 4

601

1 2

113 T

O M

AIN

CO

NT

RO

LU

NIT

2627

42

114

CT

2

1114

24

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

-2)

M6

T1

T2

T3

T1

T2

T3

L1L2

L3L1

L2L3

FR

2

CO

MP

2

WV

UX

Y Z

TO

MA

IN C

ON

TR

OL

UN

IT

M5

M4

NL

DT

OH

603

605

21

56

78

5726

604

R S T FG

380VAC3P3W

VO

LTA

GE

M

ON

ITO

RIN

G(5

E-1

)LN 220VAC

21

838 26

47

65F6

F7F8

2 4

CF

1

TH

C1

CF

3

2627

2627

M4

5

DR

YC

ON

TAC

TD

RY

CO

NTA

CT

220V

AC

PO

WE

RE

D22

0VA

CP

OW

ER

ED

220V

AC

PO

WE

RE

D22

0VA

CP

OW

ER

ED

8182

CO

MO

17O

18O

19O

20O

21O

22O

23O

24

827

5E-2

SM

PS

L N

-V+

V

2627

24VDC-P

24VDC-G

F.G

24G

HM

IU

NIT

24+

2726

220V

4 2

D+

D-

GN

D

3 2 5

+-

6

8788

107

108

RS

T

RS

T

2 Co

mpr

esso

rs T

ype

Not

e: 1. F

ield

mod

ific

atio

ns o

r ad

dit

ions

mus

t be

in c

ompl

ianc

e w

ith

nati

onal

ele

ctri

cal c

ode

as w

ell a

s al

l app

licab

le c

odes

and

spe

cifi

cati

ons.

2. R

efer

to c

erti

fied

dim

ensi

on d

raw

ing

for

exac

t loc

atio

ns o

f the

mai

n po

wer

and

con

trol

pow

er e

ntra

nce

loca

tion

s.

Dua

l poi

nt p

ower

con

nect

ion

Fuse

C/Bo

x He

at d

issip

atio

n fa

n

P/Bo

x He

at d

issip

atio

n fa

n

Ass

ist

rela

y

Oil h

eate

r

Inne

r tem

pera

ture

con

trolle

r

Oil

sepe

rato

r so

leno

id v

/v

Mid

pre

ssur

e ai

r cha

rgin

g so

leno

id v

/v

Com

p. c

apac

ity c

ontro

l v/v

(25%

, 50%

, 75%

)

Com

p. m

agne

tic s

witc

h 1

F1 ~

F3

FN1A

~ F

N3A

M2

M3

OLC

1

SW

1

HP

LP 5E

M1

Low

pre

ssur

e sw

itch

Con

vers

e ph

ase

prot

ecto

r

CF1

CF2 R1

SV1

SV2

MV2

MV3

MV1

L0

THC

CC

H1

Com

p. m

agne

tic s

witc

h 2

( c

onne

ctio

n)

Com

p. m

agne

tic s

witc

h 3

( Y c

onne

ctio

n)

FN1B

~ F

N3B

OLF

1A ~

OLF

3A

OLF

1B ~

OLF

3B

Hig

h pr

essu

re s

witc

h

Mol

d op

tion

switc

h

Pow

er in

dica

tor l

amp

Emer

genc

y sw

itch

Com

p ov

er c

urre

nt re

lay

Fan1

B~Fa

n3B

over

cur

rent

rela

ys

Fan1

B~Fa

n3B

mag

net c

onta

ctor

s

Fan1

A~Fa

n3A

mag

net c

onta

ctor

s

Fan1

A~Fa

n3A

over

cur

rent

rela

ys


Water-Cooled Screw

15. Electrical Data

Symbols:LRA: Locked Rotor Amps.RLA: Rated Load Amps.MCA : Minimum Circuit Amps. (for wire sizing)MOCP : Maximum Over Current ProtectionREC Fuse Size: Recommended Fuse Size

Notes:1. 380V-60Hz-3Ø rating voltage, voltage maximum tolerance ±10%.2. Electrical source must be 3phase 4wire for security. Neutral line and earth line must be separately connected.3. Ground wire must be installed.4. Use cable applicable to current more than MCA.5. Use ring type terminal cable.6. Have all electric work done by a licensed electrician according to "Electrical facility engineering standard" and "Interior wire regulations."

RCWW0609AAA 1 200 73 195 73 91 150 150RCWW0709AAA 1 245 83 219 83 104 175 175RCWW0809AAA 380-60-3 342 418 1 265 95 251 95 119 200 175RCWW0909AAA 1 270 102 275 102 128 225 200RCWW1009AAA 1 283 115 306 115 144 250 225

Unit(1Comp. Type)

MinimunCircuitAmps.(MCA)

MOCP RECFuse Size

Unit Voltage CompressorTotalRLA

StartCurrentV-Hz-

PhaseMin. Max. Amp. Amp. Amp.

SuppliedNo.

LRA RLA

1 Compressor Type


Water-Cooled Screw

15. Electrical Data

2 Compressors Type



RCWW1109AAB 2 200 65 169 130 182 250 225RCWW1209AAB 2 200 73 190 146 204 300 250RCWW1409AAB 2 245 83 216 166 232 300 300RCWW1509AAB 2 245 92 239 184 257 350 300RCWW1809AAB 2 270 102 265 204 285 400 350RCWW2009AAB 380-60-3 342 418 2 283 115 299 230 321 450 400RCWW2209AAB 2 328 129 335 258 360 500 450RCWW2609AAB 2 372 153 398 306 427 600 500RCWW3009AAB 2 381 170 442 340 475 600 600RCWW3409AAB 2 445 203 527 405 566 800 700RCWW4009AAB 2 486 217 564 434 606 800 700

Unit(2Comp. Type)


MOCP RECFuse Size


StartCurrentV-Hz-

PhaseMin. Max. Amp. Amp. Amp.

SuppliedNo.

LRA RLA

Single point power connection


Water-Cooled Screw

15. Electrical Data

2 Compressors Type



RCWW1109AAB 2 200 65 169 130 81 / 81 175 / 175 125 / 125RCWW1209AAB 2 200 73 190 146 91 / 91 200 / 200 150 / 150RCWW1409AAB 2 245 83 216 166 104 / 104 225 / 225 175 / 175RCWW1509AAB 2 245 92 239 184 115 / 115 250 / 250 175 / 175RCWW1809AAB 2 270 102 265 204 128 / 128 250 / 250 200 / 200RCWW2009AAB 380-60-3 342 418 2 273 115 299 230 144 / 144 300 / 300 225 / 225RCWW2209AAB 2 328 129 335 258 161 / 161 350 / 350 250 / 250RCWW2609AAB 2 372 153 398 306 191 / 191 400 / 400 300 / 300RCWW3009AAB 2 482 170 442 340 213 / 213 450 / 450 350 / 350RCWW3409AAB 2 583 203 527 405 253 / 253 500 / 500 400 / 400RCWW4009AAB 2 643 217 564 434 271 / 271 600 / 600 450 / 450

Unit(2Comp. Type)


MOCP RECFuse Size


StartCurrentV-Hz-

PhaseMin. Max Amp. Amp. Amp.

SuppliedNo.

LRA RLA



Water-Cooled Screw

Instruction about space for chiller maintenance

Foundation bolt install instruction

≥900(35.43) ≥D

≥900(35.43)

Control Box

UnitIn & Out water pipe side

"D" refer to Dimension Data

≥1200(47.24)

123

7654

≥150

(5.9

1)

[Unit : mm (inch)]

[Unit : mm (inch)]

No. Name1 Foot Bolt(field supplied)2 Cap Nut(field supplied)3 Spring Washer(field supplied)4 Flat Washer(field supplied)5 Base Unit6 Damping Rubber Pad7 Foundation Place

16. Installation

Flange Dimension

D

CG

d

f

t

[Unit : mm]

DN 80 100 150 200D 200 220 285 340t 20 20 22 26G 132 156 211 266f 2 2 3 3

d (O.D. of Pipe) 89 108 156 219

BoltingC 160 180 240 295

Dia. of Holes 18 18 22 22No.-Size 8-M16 8-M16 8-M20 12-M20

※ Slip on welding - RF Type


Water-Cooled Screw

16. InstallationFoundation

E+60

0(23

.62)

E

4-M24(1") Anchor Bolt

Ground≥25

0(9.

84)

250(

9.84

)

1200(47.24)D

D+720(28.35)

Electric cable reservation hole

Ø150(6)

[Unit : mm (inch)]

Explain : 1. Ensure base has sufficient strength which can be produced by steel concrete and can also be pro-

duced by profiled bar.2. Level deviation of base should not be more than 0.1%.3. Rubber damping pad can be used during installation.

Unit : RCWW Series Outline Dimension

D E

0609AAA inch mm

0709AAA inch mm

0809AAA inch mm

0909AAA inch mm

1009AAA inch mm

73.15 19.091,858 48588.90 19.092,258 48592.83 19.092,358 48592.83 19.092,358 48592.83 21.062,358 535


Water-Cooled Screw

16. Installation

E+60

0(23

.62)

E600(23.62)

600(

23.6

2)

600(23.62)≥

250(

9.84

)

600(

23.6

2)

250(

9.84

)

900(35.43)

DD+720(28.35)

250(

9.84

)

1,000(39.37)

Ground

4-M24(1") Anchor BoltDrain


Ø150(6)



Foundation

[Unit : mm (inch)]


D E

1109AAB inch mm

1209AABinch mm

1409AABinch mm

104.65 44.092,658 1,120104.65 45.282,658 1,150104.65 49.212,658 1,250


Water-Cooled Screw

16. Installation

E+60

0(23

.62)

E600(23.62)

600(

23.6

2)

600(23.62)≥

250(

9.84

)

600(

23.6

2)

250(

9.84

)

900(35.43)

DD+720(28.35)

250(

9.84

)

1,200(47.24)

Ground

4-M24(1") Anchor BoltDrain


Ø150(6)



Foundation

[Unit : mm (inch)]


D E

1509AAB inch 112.52 49.21mm 2,858 1,250

1809AAB inch 112.52 53.54mm 2,858 1,360

2009AAB inch 112.52 53.54mm 2,858 1,360

2209AAB inch 120.39 57.09mm 3,058 1,450

2609AAB inch 128.27 59.06mm 3,258 1,500

3009AAB inch 151.89 61.02mm 3,858 1,550

3409AAB inch 151.73 66.93mm 3,854 1,700

4009AAB inch 159.61 66.93mm 4,054 1,700


Water-Cooled Screw

17. Guide Specifications

1. General• LG RCWW series are microprocessor controlled, twin-screw compressor, water-cooled, liquid chillers. • Each RCWW series chiller is factory-assembled including compressor, evaporator, condenser, and control

box.• The initial charge of refrigerant HFC-134a and oil will be supplied for all units.• Chillers shall be rated in accordance with ARI Standard 550/590.• Chillers shall be evacuated and fully charged with refrigerant and oil, and shall be factory operational run

tested.

2. Equipment2.01 Application range • This specification is applied to all the models of water cooled screw chillers RCWW which is made and sold

by LG Electronics Co.

2.02 General structure • Chiller is all in one and is made with convenient structure for installation, operation and maintenance man-

agement and also compact to minimize the installation area.

2.03 Screw compressor • Semi-hermetic screw compressor uses environment friendly refrigerant,R134a (HFC series).• Motor is 3 phase and semi-hermetic type. • Apparatus for supplying oil is operated by the pressure difference of high and low pressure, it has oil filter

and oil heater in it to minimize oil dilution.• It has the structure to recover oil from discharged gas by built in oil separator.• Capacity control is stepless control by slide valve operation through electric valve open-close which senses

chilled water outlet temperature. • For protecting compressor, PTC sensor is installed which is able to sense motor temperature.• Check valve is installed at refrigerant discharge outlet to prevent the compressor from the backward flow of

refrigerant gas when chiller stops.• Compressor has a built-in motor to prevent refrigerant leakage.• The rotor housing is made of high strength gray cast iron FC-25.

2.04 Evaporator• Evaporator is (flooded) shell & tube type and made with carbon steel. Also it has tube changeable structure.• To increase the efficiency of evaporator, it has the structure to spray refrigerant liquid on heat exchanger tube

surface.• It has the structure which is easy to be disassembled, because water box cover is attached and fixed with bolt

& nut for maintenance and washing of inner tube.• Safety valve which spouts refrigerant of evaporator is installed to protect chiller in case when temperature

increases too much because of fire.• Tube is phosphorus deoxidization bronze pipe which has over 99.9% purity and no joint, outside of it is

attached to special shape fin, inside of it has inner grooved tube or equivalent product.• Anti-freezing switch is installed at chilled water outlet to prevent it from being frozen and burst by chilled

water flow stopping, chilled water temperature decreasing, and drain plug, air bent plug are at body.


Water-Cooled Screw


• Evaporator is covered with thermal insulation materials for dew condensation prevention and thermal insu-lation.

• Design pressure for shell is 300psig(2.1MPa).• Design working pressure for tube line is 150psig(1.0MPa) or 300psig(optional).• The evaporator and economizer are insulated with 3/4inch(19mm) insulation(K=0.26).

2.05 Condenser• High efficiency heat exchanger of Horizontal shell & tube type is used.• It has structure which is easy to be disassembled, because water box cover is attached and fixed with Bolt &

Nut for maintenance and washing of inner Tube after condenser installation.• Condenser inner pressure test is done at 3.3MPa pressure and there should not be any leakage, change or

any malfunction.• Tube is phosphorus deoxidization bronze pipe which has over 99.9% purity and no joint, outside of it is

attached to special shape fin, inside of it has inner grooved tube or equivalent product.• Safety valve is installed to protect the chiller by spurting the refrigerant of condenser when the temperature

increases too much because of fire and outlet stop valve for Pump- Down the refrigerant when operationstop.

2.06 Expansion device• Expansion devices are installed between compressor and evaporator to enable refrigerant to be evaporated

in cooler by reducing pressure (throttling).• Ejector type is applied to increase the durability of product.

2.07 Oil separator• Oil heater is installed inside of oil separator to maintain proper oil temperature, at the same time to separate

refrigerant from oil.• Oil which is supplied to compressor is operated by the difference of high and low pressure without extra oil

pump.• Oil separator has a sight glass to enable operator to check the oil level.

2.08 Economizer, Flash gas tank• Economizer is installed to increase efficiency of refrigeration cycle. • Refrigerant passed through the condenser is separated to refrigerant liquid and flash gas in the economizer.• Refrigerant liquid is sent to evaporator and flash gas is sent to compressor inlet to enhance the chiller per-

formance.• Economizer does not have any driving part; it has the structure to increase the chiller performance

2.09 Safety devices• Proper oil circulation – Triple protection of oil flow switch, oil level switch and differential pressure switch.• Normal refrigerant pressure switch – High pressure switch and low pressure switch.• Temperature check – Sensing overheat of compressor discharge temperature, sensing overheat of compres-

sor motor wire, and anti-freezing switch.• Chilled water flow – Chilled water flow switch.• Voltage and current – Voltage monitoring system, compressor over-current breaker (compressor OCR).


Water-Cooled Screw


2.10 Spray ejector for oil return• Spray ejector which does not really need extra energy for consumption, recovers the oil mixed with refriger-

ant for supplying to the compressor.

2.11 Auto controls• Chiller has its own auto control function; also component parts for auto control shall be installed in an extra

control panel and power panel.• Control panel and power panel shall be designed to satisfy waterproof class IP54.• Component parts for auto control are installed in the control panel and power panel, controller and power

supply device are in the control panel and fan, electric contactor for controlling compressor and 3 phasepower related device are in the power panel.

• Indicator which indicates supply of control power, stop switch for emergency and the control power’sON/OFF switch shall be installed in the control panel.

• The PLC (Programmable Logic Controller) is applied to control the chiller enhances the chiller performanceand through HMI (Human Machine Interface) that has touch screen LCD, it aids user interface and the func-tion of it contains these below.- Chiller ON/OFF- Detect the sensor of chiller and indicate operation information- Indicate malfunction occurrence and history- Input and indicate the set temperature and user setting value- Input and indicate control setting and service setting value

• Temperature sensor information of chiller is provided through HMI, which contains the following:- Chilled water inlet temperature- Chilled water outlet temperature- Compressor outlet refrigerant temperature- Condenser water inlet temperature- Condenser water outlet refrigerant temperature

• PLC provides MODBUS RTU communication function; especially Lon Works or BACnet can be applied to thesystem on the request of customer by installing exterior type translator.

• Power panel contains electric contactor for compressor and over load relay. Electric contactor for compressoris made to minimize the running current of compressor through Y-start.

• Power panel contains electric contactor and over-load relay for each condenser fan.• Power panel contains power monitoring device to detect power supply condition, and power monitoring

device has over 5 detecting function including reverse voltage, over voltage, low voltage, open-phase, and novoltage.

• Auto control system of chiller contains the following functions: - It performs fan and compressor ON/OFF function and several solenoid valve controlling.- It provides interlock point of contact for controlling chilled water pump.- It controls refrigerant volume through the condition of compressor operation and slide valve of compressor

for achieving chilled water outlet setting temperature.- When chilled water outlet temperature and condenser outlet refrigerant temperature is high, limit the com-

pressor operation to prevent malfunction.- Keep proper pressure of condenser through fan control by condenser outlet temperature.


Water-Cooled Screw


2.12 Refrigerant piping• Ref. piping is made with phosphorus deoxidization bronze pipe which has no joint and its purity over

99.9%, and is installed to for smooth flow of refrigerant between each component.• Install check valve at compressor discharge side not to reverse the discharged refrigerant.• Install filter dryer at pipe to absorb the moisture from inner side of pipe and filter the alien substance.• From expansion valve to evaporator pipe has insulation to prevent flash gas occurrence, also to prevent dew

condensation on pipe surface.• When discharged gas temperature is abnormal, electric valve is operated and protect a compressor by con-

necting the liquid refrigerant to suction pipe of compressor (liquid injection pipe).• After test, vacuum is done so that there shall be no moisture inside.

3. Other • Chiller is made after getting approval on everything about production from ordering company.

About thing that is not in this specification, discuss it with ordering company and get approval.


Water-Cooled Screw

Appendix

Cooling Capacity

Volume

Unit Conversion

RT Btu/h kcal/h W

1 12,000 3024.2 3516.8

HP W kW

1 746 0.746

C = — (F - 32)

Where,C is Temperature in °CF is Temperature in °F

59

CMM CFM gpm l/s

1 35.3 264.2 16.67

Length

m cm mm inch

1 100 1,000 39.37

Pressure

Temperature

bar kPa ft wg psi kg / cm2

1 100 33.455 14.5 1.0198

Power

P/No.: MFL61764715

Air Conditioner20 Yeouido-dong, Yeongdeungpo-gu,Yeouido P.O.Box 335 Seoul, 150-721, Korea.http://www.lgeaircon.com

All rights reservedPrinted in Korea September/2010The specifications, designs, andinformation in this brochure are subject to change without notice.

The air conditioners manufactured by LG have received ISO9001 certificate for quality assurance and ISO14001 certificate for environmental management system.

chiller-6chw3-01b[1] lg

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