60Hz/R134a60~400RT
6CHW3-01B(Replaces 6CHW3-01A)
WATER-COOLED SCREW CHILLER
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
Water-Cooled Screw
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
Water-Cooled Screw
2 _ CHILLER 60Hz/R134a
2. Nomenclature
Control box
Condenser
Compressor
Evaporator
Economizer
Oil separator
Safety valves
Power box
HMI
Drier
Water-Cooled Screw
CHILLER 60Hz/R134a _ 3
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.
Water-Cooled Screw
4 _ CHILLER 60Hz/R134a
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)
Water-Cooled Screw
CHILLER 60Hz/R134a _ 5
4. Features & Benefits
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]
Water-Cooled Screw
6 _ CHILLER 60Hz/R134a
4. Features & Benefits
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.
Water-Cooled Screw
CHILLER 60Hz/R134a _ 7
4. Features & Benefits
■ 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
Water-Cooled Screw
8 _ CHILLER 60Hz/R134a
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.
Water-Cooled Screw
CHILLER 60Hz/R134a _ 9
6. Controls
6. Controls
10 _ CHILLER 60Hz/R134a
Water-Cooled Screw
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
No capacitor for power factor correction
Capacitor for power factor correction
No capacitor for power factor correction
Capacitor for power factor correction
No capacitor for power factor correction
Capacitor for power factor correction
No capacitor for power factor correction
Capacitor for power factor correction
No capacitor for power factor correction
Capacitor for power factor correction
Dual point power connection
Single point powerconnection
Dual point power connection
Single point powerconnection
Dual point power connection
Single point powerconnection
Standard terminal block
Circuit breakers
Unit-mounted non-fuseddisconnect switch withcircuit breaker
7. ARI capacity ratings
CHILLER 60Hz/R134a _ 11
Water-Cooled Screw
• 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)
Water-Cooled Screw
12 _ CHILLER 60Hz/R134a
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
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Water-Cooled Screw
CHILLER 60Hz/R134a _ 13
8. Specifications English Unit
14 _ CHILLER 60Hz/R134a
Water-Cooled Screw
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
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 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
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
Semi-HermeticalTwin Screw
CHILLER 60Hz/R134a _ 15
Water-Cooled Screw
8. Specifications English Unit
Unit : RCWW Series (2 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
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
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 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
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
2 Compressors Type
8. Specifications English Unit
Unit : RCWW Series (2 Comp. Type) ModelGeneral Unit DataUnit Capacity at ARI Conditions TonsRefrigerant Charge, R134a lbsOil Charge gal.Shipping Weight lbsOperating Weight lbsCompressorsCompressor 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
RCWW1809AAB RCWW2009AAB RCWW2209AAB RCWW2609AAB
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
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 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
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
2 Compressors Type
Water-Cooled Screw
16 _ CHILLER 60Hz/R134a
8. Specifications English Unit
Unit : RCWW Series (2 Comp. Type) ModelGeneral Unit DataUnit Capacity at ARI Conditions TonsRefrigerant Charge, R134a lbsOil Charge gal.Shipping Weight lbsOperating Weight lbsCompressorsCompressor 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
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
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 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
CHILLER 60Hz/R134a _ 17
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 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
8. Specifications SI Unit
Water-Cooled Screw
18 _ CHILLER 60Hz/R134a
Unit : RCWW Series (2 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 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
RCWW1109AAB RCWW1209AAB RCWW1409AAB RCWW1509AAB
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
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
8. Specifications SI Unit
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 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
CHILLER 60Hz/R134a _ 19
Unit : RCWW Series (2 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 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
RCWW1809AAB RCWW2009AAB RCWW2209AAB RCWW2609AAB
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
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
Semi-Hermetical TwinScrew
8. Specifications SI Unit
20 _ CHILLER 60Hz/R134a
Water-Cooled Screw
Unit : RCWW Series (2 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 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
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
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 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
CHILLER 60Hz/R134a _ 21
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
nser
or e
vapo
rato
r is
wat
er o
utle
t, lo
wer
con
nect
ion
pipe
is w
ater
inle
t pip
e.3.
Flo
w s
witc
h is
fact
ory
inst
alle
d in
out
let o
f con
dens
e an
d ev
apor
ator
.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
22 _ CHILLER 60Hz/R134a
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
nser
or e
vapo
rato
r is
wat
er o
utle
t, lo
wer
con
nect
ion
pipe
is w
ater
inle
t pip
e.3.
Flo
w s
witc
h is
fact
ory
inst
alle
d in
out
let o
f con
dens
e an
d ev
apor
ator
.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
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
CHILLER 60Hz/R134a _ 23
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
nser
or e
vapo
rato
r is
wat
er o
utle
t, lo
wer
con
nect
ion
pipe
is w
ater
inle
t pip
e.3.
Flo
w s
witc
h is
fact
ory
inst
alle
d in
out
let o
f con
dens
e an
d ev
apor
ator
.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
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
24 _ CHILLER 60Hz/R134a
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
nser
or e
vapo
rato
r is
wat
er o
utle
t, lo
wer
con
nect
ion
pipe
is w
ater
inle
t pip
e.3.
Flo
w s
witc
h is
fact
ory
inst
alle
d in
out
let o
f con
dens
e an
d ev
apor
ator
.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
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
CHILLER 60Hz/R134a _ 25
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
26 _ CHILLER 60Hz/R134a
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
CHILLER 60Hz/R134a _ 27
Water-Cooled Screw
11. Performance Data
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
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 2 Compressor Type
40
42
44
45
46
28 _ CHILLER 60Hz/R134a
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
11. Performance Data
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
LCWT (°F) UNIT SIZE
CONDENSER ENTERING WATER TEMPERATURE(°F)75 85 95 105
48
50
CHILLER 60Hz/R134a _ 29
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)
30 _ CHILLER 60Hz/R134a
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Condenser water pressure drop (SI Unit)
Condenser water pressure drop (English 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
CHILLER 60Hz/R134a _ 31
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Condenser water pressure drop (SI Unit)
Condenser water pressure drop (English Unit)
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
32 _ CHILLER 60Hz/R134a
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Condenser water pressure drop (SI Unit)
Condenser water pressure drop (English Unit)
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
CHILLER 60Hz/R134a _ 33
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
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
34 _ CHILLER 60Hz/R134a
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Chilled water pressure drop (SI Unit)
Chilled water pressure drop (English Unit)
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
CHILLER 60Hz/R134a _ 35
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Chilled water pressure drop (SI Unit)
Chilled water pressure drop (English Unit)
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
36 _ CHILLER 60Hz/R134a
Water-Cooled Screw
12. Pressure Drop
Note: For flow out of this range, consult LG.
Chilled water pressure drop (SI Unit)
Chilled water pressure drop (English Unit)
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
CHILLER 60Hz/R134a _ 37
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
38 _ CHILLER 60Hz/R134a
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
CHILLER 60Hz/R134a _ 39
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.
40 _ CHILLER 60Hz/R134a
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
S5: COMP1 DISCHARGE 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
S6: COMP2 DISCHARGE TEMP
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
CHILLER 60Hz/R134a _ 41
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
42 _ CHILLER 60Hz/R134a
Water-Cooled Screw
15. Electrical Data
2 Compressors Type
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."
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)
MinimunCircuitAmps.(MCA)
MOCP RECFuse Size
Unit Voltage CompressorTotalRLA
StartCurrentV-Hz-
PhaseMin. Max. Amp. Amp. Amp.
SuppliedNo.
LRA RLA
Single point power connection
CHILLER 60Hz/R134a _ 43
Water-Cooled Screw
15. Electrical Data
2 Compressors Type
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."
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)
MinimunCircuitAmps.(MCA)
MOCP RECFuse Size
Unit Voltage CompressorTotalRLA
StartCurrentV-Hz-
PhaseMin. Max Amp. Amp. Amp.
SuppliedNo.
LRA RLA
Dual point power connection
44 _ CHILLER 60Hz/R134a
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
CHILLER 60Hz/R134a _ 45
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
46 _ CHILLER 60Hz/R134a
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
Electric cable reservation hole
Ø150(6)
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.
Foundation
[Unit : mm (inch)]
Unit : RCWW Series Outline Dimension
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
CHILLER 60Hz/R134a _ 47
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
Electric cable reservation hole
Ø150(6)
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.
Foundation
[Unit : mm (inch)]
Unit : RCWW Series Outline Dimension
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
48 _ CHILLER 60Hz/R134a
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.
CHILLER 60Hz/R134a _ 49
Water-Cooled Screw
17. Guide Specifications
• 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).
50 _ CHILLER 60Hz/R134a
Water-Cooled Screw
17. Guide Specifications
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.
CHILLER 60Hz/R134a _ 51
Water-Cooled Screw
17. Guide Specifications
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.
52 _ CHILLER 60Hz/R134a
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
CHILLER 60Hz/R134a _ 53
54 _ CHILLER 60Hz/R134a
CHILLER 60Hz/R134a _ 55
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.