LG MULTI V ARWN80LA2 Product Data
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LG MULTI V ARWN80LA2 Product Data

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R410A 50/60Hz
0CVT0-03A (Replaces:0CVT0-02A)

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  • Page 1 R410A 50/60Hz 0CVT0-03A (Replaces:0CVT0-02A)
  • Page 2 LG Airconditioners Product Data (R410A) • Introduction • General Information • Outside Units • Installation of Outside Units • Special Guide...
  • Page 3 Introduction 1. Preface R410A Model is the most favored choice when there is a need for precise air conditioning of relatively big pro- jects extending from Multi-Room structure to big commercial places. We have a big line up, that offers wider flexibility of model selection.
  • Page 4 2. Step by Step System Selection Process Calculate or obtain the maximum heat load for the area(s) to be air conditioned Decide the indoor unit specifications Decide the outside unit specifications Capacity coefficient factor Decide the air velocity and temperature distributions Decide the cooling tower specifications Decide the boiler specifications Decide the water pump specifications...

  • Page 5: General Information

    General Information 1. Model Names 2. External Appearance 3. Combination of Outside Units 4. Nomenclature 5. Outside Units information General information...

  • Page 6: Model Names

    1. Model Names Power Supply 10HP 16HP 18HP 3Ø, 380-415V, 50Hz ARWN80LA2 ARWN100LA2 ARWN160LA2 ARWN180LA2 3Ø, 380V, 60Hz Power Supply 20HP 24HP 26HP 28HP 3Ø, 380-415V, 50Hz ARWN200LA2 ARWN240LA2 ARWN260LA2 ARWN280LA2 3Ø, 380V, 60Hz Power Supply 30HP 40HP 50HP 60HP 3Ø, 380-415V, 50Hz ARWN300LA2 ARWN400LA2...

  • Page 7: External Appearance

    2. External Appearance ARWN80LA2 ARWN100LA2 ARWN160LA2 ARWN180LA2 ARWN200LA2 ARWN240LA2 ARWN260LA2 ARWN280LA2 ARWN300LA2 ARWN400LA2 ARWN500LA2 ARWN600LA2 General information...
  • Page 8 3. Combination of Outside Units System Module(HP) Capacity Number of Units (HP) General information...
  • Page 9 4. Nomenclature Serial Number A: Basic Function Electrical Ratings L: 3Ø, 380 - 415V, 50Hz / 3Ø, 380V, 60Hz Total Cooling Capacity in Horse Power(HP) unit EX) 8HP '80', 10HP '100' Combination of Inverter Type and Cooling Only or Heat Pump N: Inverter and H/P Indicates that this is Water System...

  • Page 10: Outside Units Information

    5. Outside Units Information CAUTION • Ratio of the running Indoor Units to the Outside: Within 10 ~ 100% • A combination operation over 100% cause to reduce each indoor unit capacity. Combination Ration(50~200%) Outside Number Connection Capacity Single outside units 200% Double outside units 160%...
  • Page 11 System Capacity Model Name ARWN260LA2 ARWN280LA2 ARWN300LA2 Product Refrigerant Charge 8.8+7.3 8.8+7.3 8.8+7.3 CF(Correction Factor) Maximum Connectable No. of Indoor Units 238+170 238+170 238+170 Net Weight 524.7+374.8 524.7+374.8 524.7+374.8 (772 x 1,120 x 547) x 2 (772 x 1,120 x 547) x 2 (772 x 1,120 x 547) x 2 Dimensions(WxHxD) inch (30.4 x 44.1 x 21.5) x 2 (30.4 x 44.1 x 21.5) x 2 (30.4 x 44.1 x 21.5) x 2...
  • Page 12 Outside Units 1. Specifications 2. Dimensions 3. Piping Diagrams 4. Wiring Diagrams 5. Field Wiring 6. Electric Characteristics 7. Capacity Tables 8. Operation Limits 9. Sound Levels 10. Accessories Outside Units...

  • Page 13: Specifications

    1. Specifications 1.1 Heat Pump(50Hz/60Hz) Heat Pump(50Hz/60Hz) System Capacity Combination Unit ARWN80LA2 ARWN100LA2 ARWN160LA2 Model Name Independent Unit ARWN80LA2 ARWN100LA2 ARWN160LA2 22.4 28.0 44.8 Cooling kcal/h 19,300 24,100 38,500 Btu/h 76,400 95,900 152,900 Capacity 25.2 31.5 50.4 Heating kcal/h 21,700 27,100 43,300 Btu/h...
  • Page 14 Heat Pump(50Hz/60Hz) System Capacity Combination Unit ARWN180LA2 ARWN200LA2 ARWN240LA2 Model Name ARWN180LA2 ARWN200LA2 ARWN160LA2 Independent Unit ARWN80LA2 50.4 56.0 67.2 Cooling kcal/h 43,300 48,200 57,800 Btu/h 172,000 191,100 229,300 Capacity 56.7 63.0 75.6 Heating kcal/h 48,800 54,200 65,000 Btu/h 193,500 225,000 258,000 Cooling...
  • Page 15 Heat Pump(50Hz/60Hz) System Capacity Combination Unit ARWN260LA2 ARWN280LA2 ARWN300LA2 Model Name ARWN160LA2 ARWN180LA2 ARWN200LA2 Independent Unit ARWN100LA2 ARWN100LA2 ARWN100LA2 72.8 78.4 84.0 Cooling kcal/h 62,600 67,400 72,200 Btu/h 248,800 267,900 286,600 Capacity 81.9 88.2 94.5 Heating kcal/h 70,400 75,900 81,300 Btu/h 279,500 301,000...
  • Page 16 Heat Pump(50Hz/60Hz) System Capacity Combination Unit ARWN400LA2 ARWN500LA2 ARWN600LA2 ARWN200LA2 ARWN200LA2 ARWN200LA2 Model Name ARWN200LA2 ARWN200LA2 ARWN200LA2 Independent Unit ARWN100LA2 ARWN200LA2 112.0 140.0 168.0 96,300 120,400 144,400 Cooling kcal/h Btu/h 382,200 477,700 573,400 Capacity 126.0 157.5 189.0 108,400 135,500 162,600 Heating kcal/h Btu/h...
  • Page 17 2. Dimensions Outside Units...
  • Page 18 Outside Units...
  • Page 19 Outside Units...

  • Page 20: Piping Diagrams

    3. Piping Diagrams ARWN80LA2, ARWN100LA2 Water Water Inlet Outlet Pipe Pipe HIgh Outdoor Hot Gas Bypass Accum Plate Heat Exchanger Oil return Comp Receiver Liquid Injection SC HEX High/Low Liquid Pressure Pipe Pipe Common Pipe (Ø19.05mm) : Inverter Thermistor Pressure sensor Comp.
  • Page 21 ARWN200LA2 Water Water Inlet Outlet Pipe Pipe HIgh Outdoor Hot Gas Bypass Accum Plate Heat Exchanger Oil return Normal Comp Comp Receiver Liquid Injection SC HEX High/Low Liquid Pressure Pipe Pipe Common Pipe (Ø19.05mm) : Inverter Thermistor Pressure sensor Comp. : Compressor Solenoid valve Pressure switch : Electronic Expansion Valve...

  • Page 22: Wiring Diagrams

    4. Wiring Diagrams ARWN80LA2, ARWN100LA2 Outside Units...
  • Page 23 ARWN200LA2 Outside Units...

  • Page 24: Field Wiring

    5. Field Wiring 5.1 50Hz Example Connection of Transmission Cable 1 Outside Unit - 3Ø, 380 - 415V 3 phase 4 wires power line(R, S, T, N) Transmission line (3 line): wired remote control Single phase of power supply line(L, N) Power supply switch Transmission line (2 shield line): between indoor unit and outside unit (switch fuse)
  • Page 25 2 Outside Units - 3Ø, 380 - 415V Master 3 phase 4 wires Power line(R, S, T, N) When the power source is connected In series between the units. Transmission line (3 line): Wired remote control Slave Single Phase of power supply line (L, N) Transmission line (2 shield line): Power supply switch Between Outside Unit and Outside Unit...
  • Page 26 3 Outside Units - 3Ø, 380 - 415V When the power source is connected Master 3 Phase 4 Wires Power line (R, S, T, N) In series between the units. Slave1 Transmission line (3 line): Wired remote control Slave2 Single Phase of power supply line (L, N) Transmission line (2 shield line): Power supply switch Between Outside Unit and Outside Unit...
  • Page 27 5.2 60Hz Example Connection of Transmission Cable 1 Outside Unit - 3Ø, 380V 3 phase 4 wires power line(R, S, T, N) Transmission line (3 line): wired remote control Single phase of power supply line(L, N) Power supply switch Transmission line (2 shield line): between indoor unit and outside unit (switch fuse) 3 phase 4 wires power supply...
  • Page 28 2 Outside Units - 3Ø, 380V Master 3 phase 4 wires Power line(R, S, T, N) When the power source is connected In series between the units. Slave Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Power supply switch Between Outside Unit and Outside Unit...
  • Page 29 3 Outside Units - 3Ø, 380V When the power source is connected Master 3 Phase 4 Wires Power line (R, S, T, N) In series between the units. Slave1 Transmission line (3 line): Wired remote control Slave2 Single Phase of power supply line (L, N) Transmission line (2 shield line): Power supply switch Between Outside Unit and Outside Unit...
  • Page 30 Example Connection of Communication Cable [BUS type] [STAR type] • Connection of communication cable must be installed • Abnormal operation can be caused by communication like below figure between indoor unit to outdoor unit. defect, when connection of communication cable is installed like below figure(STAR type).

  • Page 31: Electric Characteristics

    6. Electric Characteristics Wiring of Main Power Supply and Equipment Capacity 1. Use a separate power supply for the Outside Unit and Indoor Unit. 2. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking into account the line voltage drops.
  • Page 32 60Hz Power Supply COMP Volts Voltage-range Model TOCA Min.:342 ARWN80LA2 14.3 13.0 Max.:418 Min.:342 ARWN100LA2 15.4 14.0 Max.:418 Min.:342 ARWN160LA2 24.1 67.0 23.0 Max.:418 Min.:342 ARWN180LA2 25.2 67.0 24.0 Max.:418 Min.:342 ARWN200LA2 27.5 67.0 25.0 Max.:418 Min.:342 ARWN240LA2 38.4 71.0 36.0 Max.:418 Min.:342...

  • Page 33: Capacity Tables

    7. Capacity Tables 7.1 Cooling capacity ARWN80LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 20.5 1.96 22.2 2.28 24.2 2.66 26.3 2.99 27.0 3.06 28.1 3.14 28.9 3.20 20.5 1.80 22.2 2.13 24.2 2.48 26.3...
  • Page 34 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 17.5 1.70 18.9 1.98 20.6 2.31 22.4 2.60 23.1 2.66 24.0 2.73 24.6 2.78 17.5 1.56 18.9 1.85 20.6 2.16 22.4 2.43 23.1 2.49 24.0 2.55 24.6 2.60...
  • Page 35 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Temperature Rate (L/min) (°C) 12.2 1.02 13.2 1.19 14.4 1.39 15.7 1.56 16.2 1.60 16.8 1.64 17.2 1.67 12.2 0.94 13.2 1.11 14.4 1.30 15.7 1.46 16.2 1.49 16.8 1.53 17.2 1.56...
  • Page 36 ARWN100LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Temperature Rate (L/min) (°C) 25.6 2.43 27.7 2.84 30.2 3.31 32.8 3.72 33.8 3.81 35.1 3.91 36.1 3.98 25.6 2.24 27.7 2.65 30.2 3.09 32.8 3.48 33.8 3.57 35.1 3.66 36.1...
  • Page 37 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 21.8 2.12 23.7 2.47 25.8 2.87 28.0 3.24 28.8 3.31 30.0 3.40 30.8 3.46 21.8 1.95 23.7 2.31 25.8 2.69 28.0 3.03 28.8 3.10 30.0 3.18 30.8 3.24...
  • Page 38 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 15.3 1.27 16.6 1.48 18.0 1.72 19.6 1.94 20.2 1.99 21.0 2.04 21.6 2.07 15.3 1.17 16.6 1.38 18.0 1.61 19.6 1.82 20.2 1.86 21.0 1.91 21.6 1.94...
  • Page 39 ARWN160LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 41.0 3.87 44.4 4.51 48.3 5.26 52.5 5.92 54.1 6.06 56.2 6.21 57.8 6.32 41.0 3.56 44.4 4.22 48.3 4.91 52.5 5.53 54.1 5.67 56.2 5.82 57.8...
  • Page 40 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) 34.9 3.36 37.8 3.92 41.2 4.57 44.8 5.15 46.1 5.27 47.9 5.40 49.3 5.49 34.9 3.09 37.8 3.67 41.2 4.27 44.8 4.81 46.1 4.93 47.9 5.05 49.3 5.14...
  • Page 41 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 24.5 2.02 26.5 2.35 28.9 2.74 31.4 3.09 32.3 3.16 33.6 3.24 34.5 3.30 24.5 1.86 26.5 2.20 28.9 2.56 31.4 2.89 32.3 2.95 33.6 3.03 34.5 3.09...
  • Page 42 ARWN180LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 46.1 4.39 49.9 5.12 54.4 5.96 59.1 6.72 60.9 6.88 63.2 7.05 65.0 7.17 46.1 4.04 49.9 4.79 54.4 5.58 59.1 6.28 60.9 6.44 63.2 6.61 65.0...
  • Page 43 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 39.3 3.82 42.6 4.45 46.4 5.19 50.4 5.84 51.9 5.98 53.9 6.13 55.4 6.24 39.3 3.51 42.6 4.16 46.4 4.85 50.4 5.46 51.9 5.59 53.9 5.73 55.4 5.84...
  • Page 44 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 27.5 2.29 29.8 2.67 32.5 3.11 35.3 3.50 36.3 3.59 37.7 3.67 38.8 3.74 27.5 2.11 29.8 2.50 32.5 2.91 35.3 3.28 36.3 3.35 37.7 3.44 38.8 3.50...
  • Page 45 ARWN200LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 51.2 4.87 55.5 5.68 60.4 6.61 65.6 7.45 67.6 7.63 70.2 7.81 72.2 7.95 51.2 4.48 55.5 5.31 60.4 6.18 65.6 6.96 67.6 7.14 70.2 7.33 72.2...
  • Page 46 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) 43.7 4.23 47.3 4.94 51.5 5.75 56.0 6.47 57.7 6.63 59.9 6.79 61.6 6.91 43.7 3.89 47.3 4.62 51.5 5.38 56.0 6.05 57.7 6.20 59.9 6.36 61.6 6.47...
  • Page 47 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 30.6 2.54 33.1 2.96 36.1 3.45 39.2 3.88 40.4 3.98 41.9 4.07 43.1 4.15 30.6 2.33 33.1 2.77 36.1 3.23 39.2 3.63 40.4 3.72 41.9 3.81 43.1 3.88...
  • Page 48 ARWN240LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 61.4 5.82 66.5 6.79 72.5 7.91 78.8 8.91 81.1 9.12 84.3 9.35 86.7 9.52 61.4 5.36 66.5 6.35 72.5 7.40 78.8 8.33 81.1 8.54 84.3 8.77 86.7...
  • Page 49 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 52.4 5.06 56.8 5.91 61.8 6.88 67.2 7.75 69.2 7.93 71.9 8.13 73.9 8.27 52.4 4.66 56.8 5.52 61.8 6.43 67.2 7.24 69.2 7.42 71.9 7.61 73.9 7.74...
  • Page 50 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 36.7 3.04 39.7 3.54 43.3 4.13 47.0 4.65 48.5 4.76 50.3 4.88 51.7 4.96 36.7 2.79 39.7 3.31 43.3 3.86 47.0 4.35 48.5 4.45 50.3 4.56 51.7 4.65...
  • Page 51 ARWN260LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) 66.6 6.35 72.1 7.40 78.5 8.62 85.3 9.71 87.9 9.94 91.3 10.18 93.9 10.37 66.6 5.84 72.1 6.92 78.5 8.06 85.3 9.08 87.9 9.30 91.3 9.55 93.9...
  • Page 52 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 56.8 5.52 61.5 6.43 67.0 7.50 72.8 8.44 75.0 8.64 77.9 8.85 80.1 9.01 56.8 5.07 61.5 6.02 67.0 7.01 72.8 7.89 75.0 8.08 77.9 8.29 80.1 8.44...
  • Page 53 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 39.7 3.31 43.0 3.86 46.9 4.50 51.0 5.06 52.5 5.18 54.5 5.31 56.1 5.41 39.7 3.04 43.0 3.61 46.9 4.20 51.0 4.73 52.5 4.85 54.5 4.97 56.1 5.06...
  • Page 54 ARWN280LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 71.7 6.82 77.6 7.96 84.6 9.27 91.9 10.44 94.7 10.69 98.3 10.95 101.1 11.15 71.7 6.28 77.6 7.44 84.6 8.67 91.9 9.76 94.7 10.00 98.3 10.27 101.1...
  • Page 55 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 61.2 5.93 66.2 6.92 72.1 8.06 78.4 9.08 80.8 9.29 83.9 9.52 86.2 9.69 61.2 5.46 66.2 6.47 72.1 7.54 78.4 8.49 80.8 8.69 83.9 8.91 86.2 9.07...
  • Page 56 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Temperature Rate (L/min) (°C) 42.8 3.56 46.4 4.15 50.5 4.84 54.9 5.45 56.5 5.57 58.7 5.71 60.4 5.82 42.8 3.27 46.4 3.88 50.5 4.52 54.9 5.09 56.5 5.21 58.7 5.35 60.4 5.44...
  • Page 57 ARWN300LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 71.7 6.82 77.6 7.96 84.6 9.27 91.9 10.44 94.7 10.69 98.3 10.95 101.1 11.15 71.7 6.28 77.6 7.44 84.6 8.67 91.9 9.76 94.7 10.00 98.3 10.27 101.1...
  • Page 58 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 61.2 5.93 66.2 6.92 72.1 8.06 78.4 9.08 80.8 9.29 83.9 9.52 86.2 9.69 61.2 5.46 66.2 6.47 72.1 7.54 78.4 8.49 80.8 8.69 83.9 8.91 86.2 9.07...
  • Page 59 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 42.8 3.56 46.4 4.15 50.5 4.84 54.9 5.45 56.5 5.57 58.7 5.71 60.4 5.82 42.8 3.27 46.4 3.88 50.5 4.52 54.9 5.09 56.5 5.21 58.7 5.35 60.4 5.44...
  • Page 60 Cooling Capacity ARWN400LA2 Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Temperature Rate (L/min) (°C) 102.4 9.73 110.9 11.36 120.8 13.23 131.3 14.89 135.2 15.25 140.5 15.63 144.4 15.91 102.4 8.95 110.9 10.62 120.8 12.37 131.3 13.93 135.2 14.27 140.5 14.65 144.4...
  • Page 61 Cooling Capacity Indoor Air Temperature(DB/WB °C) Inlet Water Combination Flow Water Rate Temperature (L/min) (°C) 87.4 8.46 94.6 9.87 103.0 11.50 112.0 12.95 115.4 13.26 119.8 13.58 123.2 13.83 87.4 7.78 94.6 9.23 103.0 10.75 112.0 12.11 115.4 12.40 119.8 12.71 123.2 12.94...
  • Page 62 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 61.2 5.08 66.2 5.92 72.1 6.90 78.4 7.77 80.8 7.95 83.9 8.15 86.2 8.30 61.2 4.67 66.2 5.54 72.1 6.45 78.4 7.26 80.8 7.44 83.9 7.63 86.2 7.76...
  • Page 63 ARWN500LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) 128.0 12.17 138.6 14.19 151.0 16.53 164.1 18.62 169.0 19.06 175.6 19.53 180.5 19.88 128.0 11.19 138.6 13.27 151.0 15.46 164.1 17.41 169.0 17.84 175.6 18.32 180.5...
  • Page 64 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 109.2 10.58 118.3 12.34 128.8 14.37 140.0 16.19 144.2 16.57 149.8 16.98 154.0 17.29 109.2 9.73 118.3 11.54 128.8 13.44 140.0 15.14 144.2 15.50 149.8 15.89 154.0 16.18...
  • Page 65 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 76.4 6.35 82.8 7.40 90.2 8.62 98.0 9.71 100.9 9.94 104.9 10.19 107.8 10.37 76.4 5.84 82.8 6.92 90.2 8.06 98.0 9.08 100.9 9.30 104.9 9.53 107.8 9.71...
  • Page 66 ARWN600LA2 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 153.6 14.60 166.4 17.03 181.2 19.84 196.9 22.34 202.9 22.88 210.7 23.44 216.6 23.86 153.6 13.43 166.4 15.93 181.2 18.55 196.9 20.89 202.9 21.41 210.7 21.98 216.6...
  • Page 67 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 131.0 12.70 141.9 14.81 154.6 17.25 168.0 19.42 173.0 19.89 179.8 20.38 184.8 20.74 131.0 11.68 141.9 13.85 154.6 16.13 168.0 18.16 173.0 18.60 179.8 19.07 184.8 19.42...
  • Page 68 Cooling Capacity Indoor Air Temperature(DB/WB °C) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) 91.7 7.62 99.3 8.88 108.2 10.35 117.6 11.65 121.1 11.93 125.8 12.22 129.4 12.45 91.7 7.00 99.3 8.31 108.2 9.68 117.6 10.90 121.1 11.16 125.8 11.44 129.4 11.65...

  • Page 69: Heating Capacity

    7.2 Heating capacity ARWN80LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 29.8 5.18 29.7 5.33 29.6 5.54 28.8 5.47 28.1 5.23 26.5 4.74 30.8...
  • Page 70 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 25.3 5.24 25.3 5.37 25.2 5.59 24.6 5.39 23.5 5.12 22.4 4.71 25.5 5.15 25.4 5.32 25.2...
  • Page 71 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 19.7 3.72 18.6 3.50 17.6 3.33 17.3 3.21 16.5 3.04 15.7 2.82 19.7 3.60 18.6 3.40 17.6...
  • Page 72 ARWN100LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 37.2 6.39 37.1 6.57 37.0 6.83 36.1 6.75 35.1 6.45 33.1 5.85 38.4 6.40 38.3 6.58...
  • Page 73 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 31.6 6.47 31.6 6.63 31.5 6.89 30.8 6.65 29.4 6.31 28.0 5.82 31.8 6.35 31.7 6.57 31.5...
  • Page 74 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 24.6 4.59 23.3 4.32 22.1 4.11 21.6 3.96 20.6 3.75 19.6 3.49 24.6 4.45 23.3 4.20 22.1...
  • Page 75 ARWN160LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 59.6 10.25 59.4 10.54 59.2 10.95 57.7 10.82 56.2 10.34 53.0 9.39 61.5 10.27 61.3 10.55...
  • Page 76 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 50.5 10.38 50.6 10.63 50.4 11.05 49.3 10.66 47.1 10.12 44.8 9.33 50.9 10.19 50.7 10.53 50.4...
  • Page 77 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 39.4 7.37 37.2 6.92 35.3 6.60 34.5 6.36 32.9 6.01 31.4 5.59 39.4 7.13 37.2 6.73 35.3...
  • Page 78 ARWN180LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 67.0 11.57 66.8 11.90 66.6 12.37 64.9 12.22 63.2 11.68 59.6 10.60 69.2 11.59 68.9 11.91...
  • Page 79 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 56.9 11.71 56.9 12.01 56.7 12.48 55.4 12.03 52.9 11.43 50.4 10.53 57.3 11.50 57.0 11.89 56.7...
  • Page 80 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 44.4 8.32 41.9 7.81 39.7 7.45 38.8 7.18 37.1 6.78 35.3 6.31 44.4 8.05 41.9 7.60 39.7...
  • Page 81 ARWN200LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 74.5 12.90 74.3 13.26 74.0 13.78 72.1 13.61 70.2 13.01 66.3 11.81 76.9 12.92 76.6 13.27...
  • Page 82 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 63.2 13.05 63.2 13.38 63.0 13.90 61.6 13.41 58.8 12.74 56.0 11.74 63.6 12.82 63.4 13.24 63.0...
  • Page 83 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 49.3 9.27 46.5 8.71 44.1 8.30 43.1 8.00 41.2 7.56 39.2 7.03 49.3 8.97 46.5 8.47 44.1...
  • Page 84 ARWN240LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 89.4 15.43 89.1 15.87 88.9 16.49 86.5 16.29 84.2 15.57 79.5 14.13 92.3 15.45 91.9 15.88...
  • Page 85 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 75.8 15.62 75.8 16.01 75.6 16.64 73.9 16.05 70.6 15.24 67.2 14.04 76.4 15.34 76.1 15.85 75.6...
  • Page 86 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 59.2 11.09 55.8 10.42 52.9 9.93 51.8 9.57 49.4 9.04 47.1 8.41 59.2 10.73 55.8 10.13 52.9...
  • Page 87 ARWN260LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 96.8 16.76 96.5 17.23 96.3 17.90 93.8 17.68 91.3 16.91 86.1 15.34 99.9 16.78 99.6 17.24...
  • Page 88 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 82.1 16.96 82.2 17.38 81.9 18.06 80.1 17.42 76.5 16.55 72.9 15.25 82.7 16.65 82.4 17.21 81.9...
  • Page 89 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 64.1 12.04 60.5 11.31 57.3 10.78 56.1 10.39 53.5 9.82 51.0 9.13 64.1 11.65 60.5 11.00 57.3...
  • Page 90 ARWN280LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 104.3 18.08 104.0 18.59 103.7 19.32 101.0 19.08 98.3 18.24 92.8 16.55 107.6 18.10 107.3 18.60...
  • Page 91 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 88.5 18.30 88.5 18.75 88.2 19.49 86.3 18.80 82.4 17.85 78.5 16.45 89.1 17.96 88.7 18.56 88.2...
  • Page 92 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 69.0 12.99 65.1 12.20 61.7 11.63 60.4 11.21 57.6 10.59 54.9 9.86 69.0 12.57 65.1 11.87 61.7...
  • Page 93 ARWN300LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 148.9 25.79 148.5 26.52 148.1 27.56 144.2 27.23 140.4 26.03 132.5 23.62 153.8 25.83 153.2 26.54...
  • Page 94 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 126.4 26.11 126.4 26.76 126.0 27.81 123.2 26.82 117.6 25.47 112.1 23.47 127.3 25.63 126.8 26.49 126.0...
  • Page 95 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 98.6 18.53 93.1 17.41 88.2 16.60 86.3 16.00 82.4 15.11 78.5 14.06 98.6 17.94 93.1 16.94 88.2...
  • Page 96 ARWN400LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 111.7 19.29 111.4 19.84 111.1 20.61 108.2 20.36 105.3 19.47 99.4 17.66 115.3 19.32 114.9 19.85...
  • Page 97 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 94.8 19.52 94.8 20.01 94.5 20.80 92.4 20.06 88.2 19.05 84.1 17.55 95.4 19.17 95.1 19.81 94.5...
  • Page 98 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 73.9 13.86 69.8 13.02 66.2 12.41 64.7 11.96 61.8 11.30 58.8 10.52 73.9 13.41 69.8 12.67 66.2...
  • Page 99 ARWN500LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 186.2 32.19 185.7 33.10 185.1 34.39 180.3 33.97 175.5 32.48 165.7 29.47 192.2 32.23 191.5 33.12...
  • Page 100 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 158.0 32.58 158.0 33.39 157.5 34.70 154.0 33.47 147.1 31.79 140.1 29.29 159.1 31.99 158.4 33.05 157.5...
  • Page 101 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 123.2 23.13 116.3 21.73 110.3 20.71 107.8 19.96 102.9 18.86 98.1 17.55 123.2 22.38 116.3 21.14 110.3...
  • Page 102 ARWN600LA2 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Temperature Rate (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 223.4 38.69 222.8 39.79 222.1 41.34 216.4 40.84 210.6 39.04 198.8 35.42 230.6 38.75 229.8 39.81...
  • Page 103 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Water Flow Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 189.6 39.16 189.6 40.14 189.0 41.71 184.8 40.23 176.5 38.21 168.1 35.21 190.9 38.45 190.1 39.73 189.0...
  • Page 104 Heating Capacity Indoor Air Temperature(°CDB) Water Inlet Combination Flow Water Rate Temperature (L/min) (°C) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 147.9 27.80 139.6 26.12 132.3 24.89 129.4 23.99 123.5 22.67 117.7 21.09 147.9 26.90 139.6 25.41 132.3...

  • Page 105: Capacity Correction Factor

    7.3 Capacity Correction Factor ARWN80LA2, ARWN100LA2 Rate of change in cooling capacity α 50 - 0.92 0.90 0.89 0.88 0.86 0.85 0.84 0.83 0.93 0.92 0.90 0.89 0.88 0.87 0.85 0.84 0.83 40 - 0.95 0.93 0.92 0.91 0.89 0.88 0.87 0.85 0.84...
  • Page 106 ARWN160LA2, ARWN180LA2, ARWN200LA2 Rate of change in cooling capacity α 50 - 0.92 0.90 0.89 0.88 0.86 0.85 0.84 0.83 40 - 0.93 0.92 0.90 0.89 0.88 0.86 0.85 0.84 0.83 30 - 0.95 0.93 0.92 0.90 0.89 0.88 0.87 0.85 0.84 0.83...
  • Page 107 ARWN240LA2, ARWN260LA2, ARWN280LA2, ARWN300LA2 Rate of change in cooling capacity α 50 - 0.92 0.91 0.90 0.89 0.88 0.87 0.86 0.85 40 - 0.94 0.93 0.91 0.90 0.89 0.88 0.87 0.86 0.85 30 - 0.95 0.94 0.93 0.91 0.90 0.89 0.88 0.87 0.86...
  • Page 108 ARWN400LA2, ARWN500LA2, ARWN600LA2 Rate of change in cooling capacity α - 0.93 0.92 0.91 0.90 0.89 0.88 0.87 0.86 0.85 0.85 0.84 0.83 0.82 50 - 0.95 0.93 0.92 0.91 0.90 0.89 0.88 0.87 0.86 0.85 0.85 0.84 0.83 0.82 40 - 0.96 0.95 0.93 0.92 0.91 0.90 0.89 0.88 0.87 0.86 0.86 0.85 0.84 0.83 0.82...

  • Page 109: Operation Limits

    8. Operation Limits Cooling Heating Range for Range for operation operation Indoor temperature (°CWB) Indoor temperature (°CDB) Notes: These figures assume the following operating conditions: Equivalent piping length:7.5m Level difference:0m Outside Units...

  • Page 110: Sound Levels

    9. Sound Levels Unit:dB(A) Model 50Hz/60Hz ARWN80LA2 ARWN100LA2 ARWN160LA2 ARWN180LA2 ARWN200LA2 ARWN240LA2 ARWN260LA2 ARWN280LA2 ARWN300LA2 ARWN400LA2 ARWN500LA2 ARWN600LA2 Notes: • Data is valid at free field condition • Data is valid at nominal operating condition • Sound level will vary depending on a range of factors such as the construction (acoustic absorption coefficient) of particular room in which the equipment is installed •...

  • Page 111: Optional Accessories

    10. Accessories Optional Accessories Name Model ARBLN01621 ARBLN03321 Y branch pipe ARBLN07121 ARBLN14521 ARBL054 ARBL057 ARBL104 Header ARBL107 ARBL1010 ARBL2010 Outside Units...
  • Page 112 Installation of Outside Units 1. Select the Installation Location 2. Installation Space 3. Water Control 4. Lifting Method 5. Installation 6. Device protection unit 7. Refrigerant Piping System 8. Y Branch and Header Branch Pipe type 9. Electrical Wiring 10. Test Run 11.

  • Page 113: Select Installation Location

    1. Select Installation Location 1.1 Precaution when selecting the installation location • Select space for installation outside unit, which will meet the following conditions. • With strength which bears weight of unit • With space for air passage and service work Don't install the unit at the space where generation, inflow, stagnation, and leak of combustible gas is expected.

  • Page 114: Installation Space

    2. Installation space 2.1 Individual Installation Required the minimum space as shown below for installation and check. If the space is not fit on this drawing, consult with LG. : Service area (unit : mm) Product (Outside unit) Water pipe...
  • Page 115 : Service area (Unit : mm) Product Product Product (Outside unit) (Outside unit) (Outside unit) Service area Service area Service area (Front) (Front) (Front) <Top view> * In case of the water pipe passing side product, please make sufficient service place to avoid occurring between water pipe and product side.
  • Page 116 2.3 Two Layer Installation Space required for two layer installation as shown below considering passage for air and people. : Service area (unit : mm) H-Beam Support <Front View> Installation...

  • Page 117: Water Control

    3. Water control 3.1 Water control • Keep the water temperature between 10~45°C. Other it may cause the breakdown. - Standard water supply temperature is 30°C for Cooling and 20°C for heating. • Properly control the water velocity. Otherwise it may cause the noise, pipe vibration or pipe contraction, expansion according to the temperature.
  • Page 118 3.2 Standard table for water purity control The water may contain many foreign substances and hence may influence the performance and lifetime of the product due to the corrosion of the condenser and water pipe. (Use water source that complies with the below standard table for water purity control.) If you use water supply other than the tap water to supply the water for the cooling tower, you must do a water quality inspection.

  • Page 119: Lifting Method

    4. Lifting method • When carrying the unit suspended, pass the ropes under the unit and use the two suspension points each at the front and rear. • Always lift the unit with ropes attached at fours points so that impact is not applied to the unit. •...

  • Page 120: Location Of Anchor Bolt

    5. Installation 5.1 Location of anchor bolt (Unit: mm) The location of anchor bolt • Be sure to install unit in a place strong enough to withstand its weight. Any lack of strength may cause unit to fall down, resulting in a personal injury. •...
  • Page 121 5.2 Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. 1) Cut the pipes and the cable. Use the accessory piping kit or the pipes purchased Copper Slanted Uneven Rough tube 90°...
  • Page 122 5) Pipe connection 1. Follow the pipe path. Bend the pipe more than 3 times in 1 location and do not bend in the opposite direction. (This will strengthen the pipe.) 2. After deforming the pipe, align the union fitting and center of the pipe, and tighten it with the wrench. 3.

  • Page 123: Heat Insulation

    1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (Over 120°C) 2. When installing in a humid environment, use thicker Refrigerant piping heat insulation material. Indoor unit * Consult with LG on detailed technical specification. Thermal insulator (accessory) Installation...
  • Page 124 7) Standard refrigerant pipe EPDM heat insulation material thickness [Unit:mm] Air conditioned location Non-air conditioned location Classification Note1) Note2) Note3) Note4) General location Special location General location Negative condition Ø6.35 Above t9 Above t9 Above t9 Above t9 Liquid Ø9.52 pipe Above t13 Above t13...
  • Page 125 8) Connection of high/low pressure common pipe Slave2 Outside Unit Slave Outside Unit Slave1 Outside Unit Main Outside Unit Master Outside Unit 3 Outside Units 2 Outside Units 1. For the high/low pressure common pipe, connect both master outside unit and slave outside units to the pipe by using elbows.
  • Page 126 9) Connecting branch pipe between outside units 2 Outside Units (unit : mm) Connecting Combination specification Gas pipe Liquid pipe branch pipe Execute the welding while pouring nitrogen Do not cut for 70mm or less I.D12.7 I.D19.05 I.D12.7 I.D9.52 I.D28.58 I.D28.58 I.D28.58 I.D15.88...

  • Page 127: Installation Of Water Pipe

    10) Installation of water pipe 1. Water pipe system diagram • The water pressure resistance of the water pipe system of this product is 1.98MPa • When the water pipe passes indoors, make sure to execute heat insulation on the pipe so that water drops do not form on the outer side of the water pipe.
  • Page 128 Pipe thickness Shear stress Tensile stress Bending moment Torque (N . m) (kgf . m) (N . m) (kgf . m) inch (kN) (kgf) (kN) (kgf) 12.7 19.05 1,200 11.5 25.4 11.2 1,120 15.5 31.8 1 1/4 14.5 1,450 87.5 8.75 26.5 38.1...

  • Page 129: Device Protection Unit

    6. Device protection unit 6.1 Strainer on water pipe To protect the water cooling type product, you must install a strainer with 50 mesh or more on the heat water supply pipe. If not installed, it can result in damage of heat exchanger by the following situation. 1.
  • Page 130 6.3 Installation of flow switch • The flow switch must be installed at the horizontal pipe of the heat water supply out- let of the product and check the direction of the heat water flow before the installa- tion. (Picture 1) •...

  • Page 131: Refrigerant Piping System

    7. Refrigerant piping system 7.1 Y branch method 7.1.1 When installing 1 outside unit independently Indoor unit Ex) 5 indoor units connected direction : Outside unit : 1st branch (Y branch) : Indoor units : Indoor unit direction L Below 150 m l Below 40 m Outside unit ~ 1st branch...
  • Page 132 7.1.2 When installing 2 outside units Slave Ex) 5 indoor units connected : Outside unit Master : 1st branch (Y branch) Indoor unit Below 2m : Indoor units direction : Indoor unit direction Below 10m : Connecting branch pipe between out- side units Connecting branch pipe between outside L Below 150 m...
  • Page 133 7.1.3 When installing 3 outside units Slave2 Ex) 5 Indoor Units connected Slave1 : Outside Unit Master : 1st branch (Y branch) 10m or Indoor unit Below 2m (h1) less direction : Indoor Units : Downward Indoor Unit : Connection branch pipe between Outside units:ARCNN30 : Connection branch pipe between L150m...
  • Page 134 7.2 Header branch method 7.2.1 When installing 1 outside unit inde- pendently Ex) 6 indoor units connected Outside unit Header branch Indoor unit Seal L Below 150 m Outside unit ~ Header branch l Below 40 m part : Main pipe diameter (A) Outside unit capacity Liquid pipe (mm) Gas pipe (mm)
  • Page 135 7.2.2 When installing 2 outside units Ex) 6 indoor units connected Slave : Outside unit Master : Header branch : Indoor unit Below 2m : Seal Below 10m : Connecting branch pipe between out- side units Connecting branch pipe between outside L Below 150 m units: ARCNN20( ) l Below 40 m...
  • Page 136 7.2.3 When installing 3 outside units Slave2 Ex) 6 Indoor Units connected Slave1 Master : Outside Unit Below 2m Below 2m Below 2m : Header branch (h1) (h1) (h1) : Indoor Units 10m or : Sealing less : Connection branch pipe between Outside units:ARCNN30 : Connection branch pipe between L150m...
  • Page 137 7.3 Y/Header branch method 7.3.1 When installing 1 outside unit inde- pendently Ex) 5 indoor units connected : Outside unit : 1st Y branch : 2nd Y branch : Indoor unit : Header branch : Seal L Below 150 m Outside unit ~ 1st Y branch l Below 40 m...
  • Page 138 7.3.2 When installing 2 outside units Slave Ex) 5 indoor units connected : Outside unit Master : 1st Y branch : 2nd Y branch Below 2m : Indoor unit : Header branch Below 10m : Seal : Connecting branch pipe between outside units Connecting branch pipe between outside units: ARCNN20( ) Slave outside unit ~ Connecting...
  • Page 139 7.3.3 When installing 3 outside units Slave2 Ex) 5 Indoor Units connected Slave1 : Outside Unit Master : 1st branch(Y branch) Below 2m Below 2m w 2m (h1) (h1) : Y branch : Indoor Unit 10m or less : Connection branch pipe between Outside units:ARCNN30 : Connection branch pipe between Outside units:ARCNN20...
  • Page 140 • When the pipe diameter (B) connected after 1st branching is larger than the main pipe diameter (A), Install the pipe with the pipe diameter (B) after 1st branching that is the same as the main pipe diameter (A). Ex) When connecting with 120% of the indoor unit to 10 HP. 1) Outside unit main pipe diameter: 22.2 (Gas pipe) / 9.52 (Liquid pipe) 2) Pipe diameter after 1st branching by 120% indoor unit combination : 28.58 (Gas pipe) / 12.7 (Liquid pipe) Therefore set the pipe diameter (B) after 1st branching to 22.2 (Gas pipe) / 9.52 (Liquid pipe) of main pipe diameter (A).
  • Page 141 7.5 Oil trap application method between outside units • Because of the possibility of oil being accumulated in the outside unit that has stopped, when there is a height difference between outside unit pipes or if the pipe distance between the outside units is over 2m, you must always apply an oil trap. (But, the oil trap between outside units is limited to 1 time and is only applied to the gas pipe.) •...

  • Page 142: Installation Information

    7.6 Calculation of amount of refrigerant The calculation of the additional charge should take account of the diameter and length of the pipe. Product Charge(kg) Ex) 10HP Additional charge (kg) Outside unit Header branch Total liquid pipe (m): Ø22.2mm x 0.354(kg/m) Indoor unit x 0.266(kg/m) Total liquid pipe (m): Ø19.05mm...
  • Page 143 Note: Fill in the f-gas Label attached on outside about the quantity of the fluorinated greenhouse gases Manufacturing site (See Model Name label) Installation site (If possible being placed adjacent to the service points for the addition or removal of refrigerant) The total Charge ( + ) Regulation for refrigerant leakage...
  • Page 144 7.7 Refrigerant pipe fitting 7.7.1 Caution 1. Use the following materials for refrigerant piping. • Material: Seamless phosphorous deoxidized copper pipe • Wall thickness : Comply with the relevant local and national regulations for the designed pressure 3.8MPa. We recommend the following table as the minimum wall thickness. Outer diameter 6.35 9.52...
  • Page 145 7.7.2 Y Branch and Header Fitting Y branch To Outdoor Unit To Branch Piping or Indoor Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal Facing Facing plane downwards upwards Within +/- 10° Viewed from point A in direction of arrow Within ±...
  • Page 146 • When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches. Piched pipe • Fit branch pipe lie in a horizontal plane. Horizontal plane View from point B in the direction of the arrow •...

  • Page 147: Thermal Insulation Of Refrigerant Piping

    7.7.3 Thermal insulation of refrigerant piping Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves.

  • Page 148: Y Branch Pipe And Header Branch Pipe Type

    8. Y branch pipe and header branch pipe type 8.1 Y branch pipe [unit:mm] Models Gas pipe Liquid pipe I.D12.7 I.D12.7 I.D6.35 I.D15.88 I.D15.88 I.D.6.35 I.D9.52 I.D9.52 I.D15.88 ARBLN01621 I.D.6.35 I.D12.7 I.D.9.52 I.D19.05 O.D9.52 O.D15.88 I.D12.7 I.D22.2 I.D19.05 I.D15.88 I.D19.05 I.D12.7 I.D12.7 I.D9.52...
  • Page 149 8.2 Header [unit:mm] Models Gas pipe Liquid pipe ID12.7 ID6.35 ID6.35 ID12.7 4 branch ID9.52 ID15.88 ID9.52 ARBL054 ID15.88 ID12.7 ID9.52 ID19.05 ID15.88 ID12.7 ID6.35 7 branch ID12.7 ID9.52 ID15.88 120 150 ARBL057 ID15.88 ID15.88 ID9.52 ID19.05 ID12.7 ID15.88 ID6.35 ID6.35 4 branch ID12.7...

  • Page 150: Areas Of Caution

    Electrical Wiring 9.1 Areas of Caution 1. Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. Be sure to have authorized Electrical engineers do electric work using special circuits in accordance with regulations and this installation manual.
  • Page 151 9.2 Control Box and Wiring Location - Unscrew all the screw, pull out the panel. - Connect the transmission wire between outside unit and indoor unit, the connection between outside unit and central controller system pass through the sub PCB for central control. - When connecting indoor unit with the shield cable, ground at the grounding screw.
  • Page 152 9.3 Transmission and Power Lines 1) Transmission cable • Types : shielding wire CVVS or CPEVS • Use wires of size : 1.0 ~ 1.5 mm • Insulation material : PVC • Maximum allowable temperature: 60°C • Maximum allowable line length: under 300m 2) Remote control cable •...
  • Page 153 Example for mistake of wiring • Do not separately connect the power of the indoor unit. 3phase 4lines power cable Transmission cable(3lines): wired remote controller Single phase 60Hz 220V Transmission cable(2lines Shield cable) : Indoor~ Outside unit Single phase 60Hz 220V 3 phase 4 wires power supply Breaker...

  • Page 154: Dip Switch Setting

    9.4 Dip switch setting 9.4.1 Location of setting switch SW01B SW02B 7 segment SW01B SW02B 1 2 3 4 1 2 3 4 If the applicable dip switch is not set correctly, the product may not operate properly. 9.4.2 Dip switch setting 1.
  • Page 155 Master Outside Setting SW01B Setting SW02B Setting Remark Normal mode at shipping factory 1 2 3 4 1 2 3 4 1 2 3 4 8 9 10 11 12 13 14 Slave Outside Setting SW01B Setting SW02B Setting Remark Normal mode at shipping factory 1 2 3 4...
  • Page 156 Function SW01B Setting SW02B Setting Remark longest Pipe Length 1 2 3 4 1 2 3 4 1 2 3 4 8 9 10 11 12 13 14 After the system turn on, Water temp Dip Switch 7,12 are checking completed is indicated on 1 2 3 4 1 2 3 4...

  • Page 157: Indoor Unit Auto Addressing

    9.5 Indoor unit auto addressing • The address of the indoor units would be set by auto addressing. 1) Wait for 3 minutes after applying power supply (master and slave outside unit, indoor unit) 2) Press the switch of the outside unit (SW02V) for 5 seconds. 3) A "88"...
  • Page 158 The Procedure of Automatic Addressing Power On Waiting 3 minutes Press SW02V for 5 sec. Auto addressing start 7-segment LED = 88 Don't Press SW02V • Auto addressing setting end Waiting about 2~7 minutes Numbers of indoor unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED after completing setting Check the connections...
  • Page 159 Test Run 10.1 Water supply system test run • Before executing the test run for the product, you must first test the heat source water system. The test run for the product must be executed after checking the flow rate and temperature of the heat source watersupplied.
  • Page 160 10.2 Precaution before test run Check whether the air is completely removed and the water supply is flowing smoothly. Check whether there is any refrigerant leakage of any disconnected or loose communication or power wire, or use the electric wiring diagram to check the wiring connection condition. Check whether the power and communication wire are connected.

  • Page 161: The Phenomena From Main Component Failure

    10.3 How to Cope with Abnormal Test Run The phenomena from main component failure Item Phenomenon Cause Checkpoint and resolution Check whether the heat source water supply pump is operating. When connecting the flow switch, Check whether the heat source water supply pipe is clogged. heat-sourced water doesn’t flow or CH24 (Clean strainer, valve locked, valve issue, air trapped etc.)

  • Page 162: Maintenance Of Plate Type Heat Exchanger

    10.4 Maintenance of plate type heat exchanger As the scales are created in the panel heat exchanger, its efficiency may decrease or damage may occur due to winter-sowing due to the decrease in its flow. Due to this reason, regular maintenance is necessary so that the scales shouldn't be created. 1.

  • Page 163: Flow Rate Control

    10.5 Daily check/management 1. Water quality control The plate type heat exchanger is not structured to be disassembled, cleaned or replaced with parts. To prevent corrosion or scaling on the plate type heat exchanger, special care must be taken to control the water quality. Water quality must satisfy the minimum criteria of the reference water quality items.

  • Page 164: Self-Diagnosis Function

    10.7 Self-Diagnosis Function Error Indicator • This function indicates type of failure in self-diagnosis and occurrence of failure for air condition. • Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outside unit control board as shown in the table.
  • Page 165 Display Error item Root cause of error number Master outside unit inverter compressor operation Initial operation failure due to master outside unit inverter compressor error failure error Slave1 outside unit inverter compressor operation Initial operation failure due to Slave1 outside unit inverter compressor error 2 6 2 failure error Slave2 outside unit inverter compressor operation...
  • Page 166 Display Error item Root cause of error number Master outside unit inverter compressor CT sen- Master outside unit inverter compressor current detection (CT) sensor discon- sor error nection or short circuit Slave1 outside unit inverter compressor CT sen- Slave1 outside unit inverter compressor current detection (CT) sensor discon- 4 0 2 sor error nection or short circuit...
  • Page 167 Display Error item Root cause of error number 1 Master outside unit 3 phase power missing Master oudoor unit power line phase missing 5 0 2 Slave1 outside unit 3 phase power missing Slave1 oudoor unit power line phase missing 3 Slave2 outside unit 3 phase power missing Slave2 oudoor unit power line phase missing Over-capacity...
  • Page 168 Display Error item Root cause of error number Master outside unit liquid pipe temperature sensor Master outside unit liquid pipe temperature sensor disconnection or short cir- error cuit Slave1 outside unit liquid pipe temperature sensor Slave1 outside unit liquid pipe temperature sensor disconnection or short cir- 1 1 3 2 error cuit...

  • Page 169: Cooling Tower Applied Method

    11. Cooling tower applied method Open type Closed type cooling tower cooling tower side side Heat exchange [Open type cooling tower + Middle heat exchanger] [Closed type cooling tower] Heat exchanger is installed between the cooling Heat source water of the cooling tower is supplied tower and outside unit system piping, and the tem- directly to the outside unit system.

  • Page 170: Water Solenoid Valve Control

    12. Water Solenoid Valve Control 12.1 Central Control (Use DDC Port) Water Water CN_26 C_Box MAIN PCB CN_24 CN_22 Flow Switch INTERNET 1(L) 2(N) ) 4(N) 5(A) 5(B) Solenoid Valve 12.2 Individual Control (Use 220V Out Port) Water Water CN_26 C_Box MAIN PCB CN_24...

  • Page 171: Cautions For Refrigerant Leaks

    Special Guide 1. Cautions for Refrigerant Leaks 1.1 Introduction 1.2 Checking procedure of limiting concentration Special Guide...

  • Page 172: Caution For Refrigerant Leak

    Caution For Refrigerant Leak The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. 1.1 Introduction Though the R410A refrigerant is harmless and incombustible itself , the room to equip the air conditioner should be large to such an extent that the refrigerant gas will not exceed the limiting concentration even if the refrigerant gas leaks in the room.
  • Page 173 (3) With partition and without opening which serve as passage of air to adjoining room Outside unit Indoor unit Smallest room Calculate refrigerant concentration Total amount of replenished In case the result of calculation exceeds refrigerant in refrigerant facility (kg) Refrigerant concentration the limiting concentration, perform the Capacity of smallest room where...
  • Page 174 Yeouido P.O.Box 335 Seoul, 150-721, Korea. http://www.lgeaircon.com All rights reserved The air conditioners manufactured by LG have received ISO9001 certificate for Printed in Korea November/2009 quality assurance and ISO14001 certificate for environmental management system. The specifications, designs, and information in this brochure are subject to...

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