LG MULTI V WATER IV ARWN LAS4 Series Service Manual Download Page 18

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4. Piping Diagrams

Piping Diagrams

ARWN080LAS4, ARWN100LAS4, ARWN120LAS4, ARWN140LAS4,
ARWN160LAS4, ARWN180LAS4, ARWN200LAS4

Cooling Operation

IDU HEX

IDU

IDU HEX

IDU

Flare

Joint

Flare

Joint

Flare

Joint

Flare

Joint

High

Pressure

Outside Unit

Accumulator

Oil

Separator

Gas

Liquid

Low

Pressure

Discharge

Temp.

Suction

Temp.

SC HEX

Outlet Temp.

Remarks

Liquid

Temp.

INV

Comp

High

Pressure

Pressure Switch

EEV

Pressure Sensor

Strainer

Check Valve

Service Valve

4Way Valve

Solenoid Valve

Temperature Sensor

High Pressure Gas

High Pressure Liquid

Low Pressure Gas

Sub-Cooling HEX

EEV

Water

Outlet pipe

Water

Inlet pipe

Plate

HEX

Water Outlet

Temp.

Outside

Air Temp.

Summary of Contents for MULTI V WATER IV ARWN LAS4 Series

Page 1: ...EL ARWN LAS4 CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel R410A CONFIDENTIAL Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 2: ...ight 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes 1 Specifications 3 2 Functions 16 3 Dimensions 17 4 Piping Diagrams 18 5 Wiring Diagrams 20 6 Exploded View 27 ARWN LAS4 ...

Page 3: ...0 PT 40 Outlet mm PT 40 PT 40 PT 40 Drain Outlet mm 20 20 20 Dimensions WxHxD mm 755 997 500 1 755 997 500 1 755 997 500 1 inch 29 23 32 x 39 1 4 x 19 11 16 x 1 29 23 32 x 39 1 4 x 19 11 16 x 1 29 23 32 x 39 1 4 x 19 11 16 x 1 Net Weight kg 127 x 1 125 x 1 125 x 1 lbs 280 x 1 276 x 1 276 x 1 Sound Pressure Level 3 Cooling dB A 47 50 50 56 Heating dB A 51 53 53 56 Sound Power Level 4 Cooling dB A 5...

Page 4: ...le local and national code 6 Due to our policy of innovation some specifications may be changed with out prior notification 7 Add an anti freeze to circulation water when outside units is operating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 14 16 18 ARWN140LAS4 ARWN160LAS4 ARWN180LAS4 ARWN140LAS4 ARWN160LAS4 ARWN180LAS4 39 2 44 8 50 4 33 70...

Page 5: ...o circulation water when outside units is operating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 20 22 24 ARWN200LAS4 ARWN220LAS4 ARWN240LAS4 ARWN200LAS4 ARWN120LAS4 ARWN120LAS4 ARWN100LAS4 ARWN120LAS4 56 0 61 6 67 2 48 200 53 000 57 800 191 100 210 100 229 200 63 0 69 3 75 6 54 200 59 600 65 000 215 000 236 500 258 000 11 20 11 55 12 92 11 6...

Page 6: ...ged without prior notification 7 Add an anti freeze to circulation water when outside units is operating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 26 28 30 ARWN260LAS4 ARWN280LAS4 ARWN300LAS4 ARWN140LAS4 ARWN140LAS4 ARWN160LAS4 ARWN120LAS4 ARWN140LAS4 ARWN140LAS4 72 8 78 4 84 0 62 600 67 400 72 200 248 400 267 600 286 700 81 9 88 2 94 5 70...

Page 7: ...perating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 32 34 36 ARWN320LAS4 ARWN340LAS4 ARWN360LAS4 ARWN180LAS4 ARWN200LAS4 ARWN180LAS4 ARWN140LAS4 ARWN140LAS4 ARWN180LAS4 89 6 95 2 100 8 77 000 81 900 86 600 305 800 324 900 344 000 100 8 107 1 113 4 86 700 92 100 97 600 344 000 365 500 387 000 17 53 19 04 19 38 18 30 19 84 20 26 Warm Gray Mor...

Page 8: ...otification 7 Add an anti freeze to circulation water when outside units is operating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 38 40 42 ARWN380LAS4 ARWN400LAS4 ARWN420LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN180LAS4 ARWN200LAS4 ARWN120LAS4 ARWN100LAS4 106 4 112 0 117 6 91 500 96 400 101 200 363 100 382 200 401 200 119 7 126 0 132 3 10...

Page 9: ... installation manual 44 46 48 ARWN440LAS4 ARWN460LAS4 ARWN480LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN120LAS4 ARWN140LAS4 ARWN140LAS4 ARWN120LAS4 ARWN120LAS4 ARWN140LAS4 123 2 128 8 134 4 106 000 110 800 115 600 420 300 439 500 458 700 138 6 144 9 151 2 119 200 124 600 130 000 473 000 494 500 516 000 24 12 25 50 26 88 25 17 26 59 28 01 Warm Gray Mornig Gray Warm Gray Mornig Gray Warm Gray Morn...

Page 10: ...ide units is operating under 10 50 F and change the DIP switch on main PCB For more information refer a installation manual 50 52 54 ARWN500LAS4 ARWN520LAS4 ARWN540LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN160LAS4 ARWN180LAS4 ARWN200LAS4 ARWN140LAS4 ARWN140LAS4 ARWN140LAS4 140 0 145 6 151 2 120 400 125 200 130 100 477 800 496 900 516 000 157 5 163 8 170 1 135 400 140 900 146 300 537 500 559 000...

Page 11: ... PCB For more information refer a installation manual 56 58 60 ARWN560LAS4 ARWN580LAS4 ARWN600LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN180LAS4 ARWN200LAS4 ARWN200LAS4 ARWN180LAS4 ARWN180LAS4 ARWN200LAS4 156 8 162 4 168 0 134 800 139 700 144 600 535 100 554 200 573 300 176 4 182 7 189 0 151 800 157 200 162 600 602 000 623 500 645 000 30 58 32 09 33 60 31 93 33 47 35 01 Warm Gray Mornig Gray War...

Page 12: ...or more information refer a installation manual 62 64 66 ARWN620LAS4 ARWN640LAS4 ARWN660LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN120LAS4 ARWN120LAS4 ARWN140LAS4 ARWN100LAS4 ARWN120LAS4 ARWN120LAS4 173 6 179 2 184 8 149 400 154 200 159 000 592 300 611 400 630 600 195 3 201 6 207 9 168 000 173 400 178 800 666 500 688 000 709 500 33 95 35 32 36 70 35 43 36 84 3...

Page 13: ...0LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN140LAS4 ARWN160LAS4 ARWN180LAS4 ARWN140LAS4 ARWN140LAS4 ARWN140LAS4 190 4 196 0 201 6 163 800 168 600 173 400 649 800 668 900 688 000 214 2 220 5 226 8 184 200 189 600 195 100 731 000 752 500 774 000 38 08 38 39 39 93 39 68 40 05 41 64 Warm Gray Mornig Gray Warm Gray Mornig Gray Warm Gray Mornig Gray Hermetically Sea...

Page 14: ...IP switch on main PCB For more information refer a installation manual 74 76 78 ARWN740LAS4 ARWN760LAS4 ARWN780LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN200LAS4 ARWN180LAS4 ARWN200LAS4 ARWN140LAS4 ARWN180LAS4 ARWN180LAS4 207 2 212 8 218 4 178 300 183 000 187 900 707 100 726 200 745 300 233 1 239 4 245 7 200 500 206 000 211 400 795 500 817 000 838 500 41 44 41...

Page 15: ...o 2 Capacities are net capacities 3 Sound pressure level is measured on the rated condition in the anechoic rooms by ISO 3745 standard 4 Sound power level is measured on the rated condition in the reverbera tion rooms by ISO 3741 standard 5 Wiring cable size must comply with the applicable local and national code 6 Due to our policy of innovation some specifications may be changed without prior no...

Page 16: ... supplied with separate package Note O Applied X Not applied Accessory model name Installed at field ordered and purchased separately by the corresponding model name supplied with separate package Device Multi V Water IV Central Controller Simple Controller PQCSB101S0 AC Ez PQCSZ250S0 Function controller PQCSB101S0 PQCSC101S0 Function Scheduler PQCSB101S0 PQCSD130A0 AC Smart ll PQCSW320A1E Expansi...

Page 17: ...4 ARWN180LAS4 ARWN200LAS4 Gravity point Unit mm 755 79 79 79 58 58 345 378 755 Liquid pipe Gas pipe Water Inlet out Water Inlet IN High Low Pressure Common 250 500 500 997 169 420 635 742 828 913 95 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 18: ...Joint Flare Joint Flare Joint High Pressure Outside Unit Accumulator Oil Separator Gas Liquid Low Pressure Discharge Temp Suction Temp SC HEX Outlet Temp Remarks Liquid Temp INV Comp High Pressure Pressure Switch EEV Pressure Sensor Strainer Check Valve Service Valve 4Way Valve Solenoid Valve Temperature Sensor High Pressure Gas High Pressure Liquid Low Pressure Gas M M S S Sub Cooling HEX EEV EEV...

Page 19: ... Temp Suction Temp SC HEX Outlet Temp Liquid Temp INV Comp High Pressure Remarks Pressure Switch EEV Pressure Sensor Strainer Check Valve Service Valve 4Way Valve Solenoid Valve Temperature Sensor S High Pressure Gas High Pressure Liquid Low Pressure Gas Water Outlet pipe Water Inlet pipe Plate HEX Water Outlet Temp Outside Air Temp Copyright 2013 2019 LG Electronics Inc All rights reserved Only t...

Page 22: ...SMPS CN6 CN10_OPTION PCB SW01D SW01C SW02C SW03C SW04C CN_EXT CN_DEBUGGER CN_CNVSS CN3_FLASH WRITE CN2_LGMV CN_COMP2 CN_COMP1 CN_COMMWIRE CN_POWER 22 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 23: ...FLASH01 CN04_WRITE02 CN06_FLASH02 CN43_COMM CN34_DIS_C1 WATER SUC CN37_MAIN_EEV1 CN28_OIL_LEVEL_SEN CN22_DDC CN18_SOL_V V CN14_FAN CN15_H GAS CN10_HEATER_C1 CN09_AC_INPUT CN24_FLOW S W CN25_P_C1_S W CN13 4WAY1 CN38_SC_INJ_EEV 23 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 24: ... CN_COIL1 CN_N F CN_N F CN_N F CN_DCLINK_FAN CN_DCLINK_INV CN_COMP_INV n Converter PCB 16 20HP CN_DCLINK_INV CN_DCLINK_FAN CN_COMP_INV Wiring Diagrams 24 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 25: ...RD COMP 2 YL CN_LGMV CN_COMP_UVW CN_FLASH CN1_COMM CN_FAN CN_MAIN COMP1 RD COMP 2 YL CN_LGMV CN_DCLINK CN_COMP_UVW n Inverter PCB 16 20HP n Inverter PCB 8 14HP 25 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 26: ..._POWER CN_DCLINK_P CN1_SMPS_POWER CN_INV_S CN_INV_R CN_INV_T CN_INV_N CN_INV_N CN_INV_R CN_INV_S CN_INV_T n Noise filter 8 20HP 26 Copyright 2013 2019 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 27: ...W6200 268711A 649950 W0DS 268711D 261704 268711G 268711F 546810 268711B 268711C 268711E W49200 263230A W6640A W6640B W6631A ...

Page 28: ...237204A 437211 135501A 649950 147780A 430410 W4986A 137213A 137213B 147780B 237204C 137213A 237204B W4986B 137215 137214 W4810A 437212 135501B 135510 ...

Page 29: ...114 263230B 552117 548490 554160 552120 W49810 552203A 552203B 552113 661400 552200B 552209 552201B 263230C 165000A 552116 165000B W52240A W4810B W52240B W52240B 566001 550140 552204 561410B 552202 561410A ...

Page 30: ... 35211A 263230A 552200B W52240B 552113 554160 550140 566001 552120 552116 552114 548490 561410A 561410B 661400 263230C 552209 W52240B W49810 552203A W4810B 552203B 263230B 552202 165000B W52240A 552204 165000A ...

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