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LG Multi V S Engineering Product Data Book
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LG Multi V S Engineering Product Data Book

LG Multi V S Engineering Product Data Book

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Multi V Outdoor Unit
Heat Pump
MFL67474092
Region : EU
Published on Oct. 16, 2024

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Summary of Contents for LG Multi V S

  • Page 1 Multi V Outdoor Unit Heat Pump MFL67474092 Region : EU Published on Oct. 16, 2024...
  • Page 2 Multi V Outdoor Unit General Information Model Line Up...
  • Page 3 Multi V Outdoor Unit General Information 1. Model Line Up Capacity Index Product Phase Chassis Model Name U60A ARUN080LSS5 Multi V S ARUN100LSS5 U80A ARUN120LSS5 * The capacity index may differ from actual capacity values.
  • Page 4 * Capacity Index is same as the capacity(kW). Note Detailed procedures used for model selection in LATS (LG Air Conditioner Technical Solution) software can be found on the B2B Partner Portal. ( https://partner.lge.com ; Select you Region ; Home > Doc. Library > Utility Download > Model Selection Tool...
  • Page 5 Product Data Multi V S...
  • Page 6 Multi V S 1. Specifications 2. List of Functions 3. Accessory Compatibility List 4. Dimensions 5. Piping Diagrams 6. Wiring Diagrams 7. Capacity Tables 8. Capacity Correction Factor 9. Operation Limits 10. Sound Levels...
  • Page 7 Multi V S Product Data 1. Specifications 1.1 Product ARUN080LSS5 Category Unit Specification Major Minor Chassis U60A Combination Unit (1) Classification Combination Unit (2) Combination Unit (3) Combination Unit (4) Case 1 V, Phase, Hz 380-400-415, 3, 50 Limit Range of Voltage(Case 1)
  • Page 8 Multi V S Product Data 1. Specifications Category Unit Specification Major Minor Frost Prevention O (Logical) Discharge Tempreature Control O (Logical) Protection Device Compressor/Fan Protection Over-heat protection / Over-current protection Inverter Protection Over-heat protection / Over-current protection Type R410A Precharged Amount...
  • Page 9 Multi V S Product Data 1. Specifications ARUN100LSS5 Category Unit Specification Major Minor Chassis U80A Combination Unit (1) ARUN100LSS5 Classification Combination Unit (2) Combination Unit (3) Combination Unit (4) Case 1 V, Phase, Hz 380-400-415, 3, 50 Limit Range of Voltage(Case 1)
  • Page 10 Multi V S Product Data 1. Specifications Category Unit Specification Major Minor Compressor/Fan Protection Over-heat protection / Fan driver overload protector Protection Device Inverter Protection Over-heat protection / Over-current protection Type R410A Precharged Amount Refrigerant GWP(Global Warming Potential) 2,087.5 t-CO₂ eq.
  • Page 11 Multi V S Product Data 1. Specifications ARUN120LSS5 Category Unit Specification Major Minor Chassis U80A Combination Unit (1) Classification Combination Unit (2) Combination Unit (3) Combination Unit (4) Case 1 V, Phase, Hz 380-400-415, 3, 50 Limit Range of Voltage(Case 1)
  • Page 12 Multi V S Product Data 1. Specifications Category Unit Specification Major Minor Compressor/Fan Protection Over-heat protection / Fan driver overload protector Protection Device Inverter Protection Over-heat protection / Over-current protection Type R410A Precharged Amount Refrigerant GWP(Global Warming Potential) 2,087.5 t-CO₂ eq.
  • Page 13 Multi V S Product Data 2. List of Functions ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 Category Functions Availability Defrost / Deicing High Pressure Switch Phase Protection Reliability Restart Delay (3-minutes) Self Diagnosis Soft Start Low Noise Operation Peak Control Convenience Mode Lock SLC (Smart Load Control)
  • Page 14 Multi V S Product Data 3. Accessory Compatibility List ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 Category Accessory Name Model Name Description Compatibility AC EZ PQCSZ250S0 AC EZ touch PACEZA000 Touch type AC Smart IV PACS4B000 Touch type AC Smart 5 PACS5A000 Touch type...
  • Page 15 Multi V S Product Data 4. Dimensions 4.1 Dimensional Drawing ARUN080LSS5...
  • Page 16 Multi V S Product Data 4. Dimensions ARUN100LSS5, ARUN120LSS5...
  • Page 17 Multi V S Product Data 4. Dimensions 4.2 Installation Space ARUN080LSS5 For Side Discharge (capacity ＜ 28.0 kW) ※ Case 1 : No obstacle on top side [Unit : mm(inch)] Obstacle on the Suction side Case 2 : Obstacle on top side...
  • Page 18 Multi V S Product Data 4. Dimensions ARUN100LSS5, ARUN120LSS5 For Side Discharge (capacity ≥ 28.0 kW ) ※ Case 1 : No obstacle on top side [Unit : mm(inch)] Obstacle on the Suction side Case 2 : Obstacle on top side...
  • Page 19 Multi V S Product Data 5. Piping Diagrams 5.1 Cooling Operation ARUN080LSS5...
  • Page 20 Multi V S Product Data 5. Piping Diagrams ARUN100LSS5, ARUN120LSS5 Outdoor Temperature Sensor HIgh HIgh Pressure Pressure Switch Sensor Outdoor Unit HEX Temperature Sensor Hot Gas Chatging Valve Port Outdoor Liquid Pipe Temperature Sensor Comp Discharge Pressure Temperature Sensor Suction...
  • Page 21 Multi V S Product Data 5. Piping Diagrams 5.2 Heating Operation ARUN080LSS5 Outdoor Temperature Sensor Charging Port Outdoor Unit HEX Temperature Sensor Suction Temperature Sensor Hot Gas HIgh Valve Pressure Seperater Sensor Outdoor HIgh Pressure Pressure Switch Sensor Comp Discharge...
  • Page 22 Multi V S Product Data 5. Piping Diagrams ARUN100LSS5, ARUN120LSS5 Outdoor Temperature Sensor HIgh HIgh Pressure Pressure Switch Sensor Outdoor Unit HEX Temperature Sensor Hot Gas Chatging Valve Port Outdoor Liquid Pipe Temperature Sensor Comp Discharge Pressure Temperature Sensor Suction...
  • Page 23 Multi V S Product Data 5. Piping Diagrams 5.3 Defrost / Oil Return ARUN080LSS5 Outdoor Temperature Sensor Charging Port Outdoor Unit HEX Temperature Sensor Suction Temperature Sensor Hot Gas HIgh Valve Pressure Seperater Sensor Outdoor HIgh Pressure Pressure Switch Sensor...
  • Page 24 Multi V S Product Data 5. Piping Diagrams ARUN100LSS5, ARUN120LSS5 Outdoor Temperature Sensor HIgh HIgh Pressure Pressure Switch Sensor Outdoor Unit HEX Temperature Sensor Hot Gas Chatging Valve Port Outdoor Liquid Pipe Temperature Sensor Comp Discharge Pressure Temperature Sensor Suction...
  • Page 25 Multi V S Product Data 6. Wiring Diagrams 6.1 Product ARUN080LSS5...
  • Page 26 Multi V S Product Data 6. Wiring Diagrams ARUN100LSS5, ARUN120LSS5...
  • Page 27 Multi V S Product Data 7. Capacity Tables 7.1 Cooling Operation (Standard) ARUN080LSS5 Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0...
  • Page 28 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 14.80 2.95...
  • Page 29 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 12.10 5.24...
  • Page 30 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 8.10 1.76...
  • Page 31 Multi V S Product Data 7. Capacity Tables ARUN100LSS5 Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 21.87...
  • Page 32 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 18.50 4.66...
  • Page 33 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 13.46 1.79...
  • Page 34 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 10.09 2.91...
  • Page 35 Multi V S Product Data 7. Capacity Tables ARUN120LSS5 Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 26.16...
  • Page 36 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 22.14 5.52...
  • Page 37 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 16.10 1.94...
  • Page 38 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB/WB) Outdoor Combi. Air Temp. 20.0 / 14.0 23.0 / 16.0 26.0 / 18.0 27.0 / 19.0 28.0 / 20.0 30.0 / 22.0 32.0 / 24.0 (°C,DB) 12.08 3.26...
  • Page 39 Multi V S Product Data 7. Capacity Tables 7.2 Heating Operation (Standard) ARUN080LSS5 Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -19.8 19.54 10.91 19.40 11.02 19.26 11.13 19.19 11.18 19.12 11.23...
  • Page 40 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -13.7 22.26 11.69 22.11 11.81 21.95 11.92 21.88 11.98 21.81 12.03 21.66 12.14 -11.8 23.32 11.90...
  • Page 41 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -3.7 24.80 10.15 23.43 9.32 22.05 8.52 21.36 8.13 20.67 7.75 19.29 7.01 -0.7 24.80 9.08...
  • Page 42 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, 11.8 19.29 3.99 18.22 3.69 17.15 3.40 16.61 3.26 16.08 3.12 15.00 2.85 13.7 19.29 3.71...
  • Page 43 Multi V S Product Data 7. Capacity Tables ARUN100LSS5 Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -19.8 24.38 13.07 24.20 13.19 24.01 13.32 23.93 13.38 23.83 13.44 23.66 13.56 -18.8 25.06...
  • Page 44 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -9.8 30.64 14.49 30.42 14.63 30.20 14.77 30.09 14.83 29.98 14.90 29.45 14.74 -9.5 31.39 14.62...
  • Page 45 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, 30.98 9.90 29.26 9.14 27.54 8.40 26.68 8.04 25.82 7.69 24.09 7.01 30.98 9.27 29.26 8.56...
  • Page 46 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -19.8 20.65 12.17 19.51 11.23 18.36 10.32 17.78 9.87 17.21 9.44 16.06 8.59 -18.8 20.65 11.75...
  • Page 47 Multi V S Product Data 7. Capacity Tables ARUN120LSS5 Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -19.8 29.27 19.14 29.06 19.33 28.86 19.51 28.76 19.60 28.66 19.69 28.46 19.87 -18.8 30.08...
  • Page 48 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -9.8 36.74 21.27 36.49 21.47 36.24 21.68 36.12 21.78 35.99 21.88 35.32 21.58 -9.5 37.62 21.46...
  • Page 49 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, 37.15 14.31 35.09 13.17 33.03 12.06 31.99 11.53 30.96 11.00 28.90 9.98 37.15 13.37 35.09 12.31...
  • Page 50 Multi V S Product Data 7. Capacity Tables Indoor Air Temp. (°C, DB) Outdoor Air Temp. 16.0 18.0 20.0 21.0 22.0 24.0 Combi. (°C, (°C, -19.8 24.77 17.61 23.39 16.21 22.02 14.85 21.33 14.19 20.64 13.54 19.26 12.28 -18.8 24.77 17.00...
  • Page 51 Multi V S Product Data 8. Capacity Correction Factor 8.1 Cooling Operation ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 Level Capacity correction factor (%) by equivalent pipe length (m) difference (=IDU-ODU) 92.0 89.0 89.0 88.0 86.0 85.0 84.0 94.0 93.0 92.0 89.0 89.0 88.0 86.0...
  • Page 52 Multi V S Product Data 8. Capacity Correction Factor 8.2 Heating Operation ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 Level Capacity correction factor (%) by equivalent pipe length (m) difference (=IDU-ODU) 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0...
  • Page 53 Multi V S Product Data 8. Capacity Correction Factor 1.Fomula ■ Integrated heating capacity = A ■ Value given in table of capacity characteristics = B ■ Integrated correction factor for frost accumulation = C ■ A = B x C 2.
  • Page 54 Multi V S Product Data 9. Operation Limits 9.1 Cooling Operation ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 50°C 48°C 45°C 40°C 35°C 30°C 25°C 20°C 15°C 10°C 5°C 0°C -5°C -10°C -15°C 10°C 14°C 15°C 20°C 25°C 27°C 30°C Indoor Temperature(°C WB) Note ■...
  • Page 55 Multi V S Product Data 9. Operation Limits 9.2 Heating Operation ARUN080LSS5, ARUN100LSS5, ARUN120LSS5 20°C 18°C 15°C 10°C 5°C 0°C -5°C -10°C -15°C -20°C -25°C 10°C 15°C 20°C 25°C 27°C 30°C Indoor Temperature(°C DB) Note ■ These figures assume the following operating conditions : Equivalent piping length is standard condition, and level differenc is 0m.
  • Page 56 Multi V S Product Data 10. Sound Levels 10.1 Pressure Levels ARUN080LSS5 Night Low Noise Control ■ Cooling SPL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 51.0 51.0 op4~op6, op11 50.0 50.0 op7~op9, op12 49.0...
  • Page 57 Multi V S Product Data 10. Sound Levels ARUN100LSS5 Night Low Noise Control ■ Cooling SPL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 56.0 56.0 op4~op6, op11 55.5 55.5 op7~op9, op12 55.0 55.0 NC-65...
  • Page 58 Multi V S Product Data 10. Sound Levels ARUN120LSS5 Night Low Noise Control ■ Cooling SPL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 56.0 56.0 op4~op6, op11 55.5 55.5 op7~op9, op12 55.0 55.0 NC-65...
  • Page 59 Multi V S Product Data 10. Sound Levels 10.2 Power Levels ARUN080LSS5 Night Low Noise Control ■ Cooling PWL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 67.0 71.0 op4~op6, op11 66.0 70.0 NR-110 op7~op9, op12 65.0...
  • Page 60 Multi V S Product Data 10. Sound Levels ARUN100LSS5 Night Low Noise Control ■ Cooling PWL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 73.0 79.0 op4~op6, op11 72.5 78.5 NR-110 op7~op9, op12 72.0 78.0...
  • Page 61 Multi V S Product Data 10. Sound Levels ARUN120LSS5 Night Low Noise Control ■ Cooling PWL [dB(A)] Capacity [%] Dip Switch ▲ Heating Cool Heat Cool Heat op1~op3, op10 73.0 78.0 op4~op6, op11 72.5 77.5 NR-110 op7~op9, op12 72.0 77.0...
  • Page 62 Installation Installation of Outdoor Unit...
  • Page 63 Installation of Outdoor Unit Installation 1. Information for Refrigerant 1.1 Alternative Refrigerant The type of refrigerant applied depends on the outdoor unit cycle configuration. Ensure the refrigerant type in the specification of the indoor unit and outdoor unit to be installed. ■...
  • Page 64 Installation of Outdoor Unit Installation 1. Information for Refrigerant 1.2 Caution For Refrigerant Leaks < Needs to Calculation of Refrigeran concentration > Flow of Outdoor unit (No.1 system) refrigerant Indoor unit Room where refrigerant leaks (Refrigerant of the whole No.1 system flows out.) <...
  • Page 65 Installation of Outdoor Unit Installation 1. Information for Refrigerant ※ In case one refrigerant facility is divided into 2 or more refrigerant systems and each system is independent, amount of replenished refrigerant of each system shall be adopted. (2) Calculate the volume of the room where indoor unit is installed as single room or the smallest room. (D, m³) In case of room with partition and without opening which serve as passage of air to adjoining room, calculate the room space only.
  • Page 66 Installation of Outdoor Unit Installation 2. Selection of The Best Location 2.1 Best Location Select space for installing outdoor unit, which will meet the following conditions: • No direct thermal radiation from other heat sources. • No possibility of annoying neighbors due to noise of unit. •...
  • Page 67 Installation of Outdoor Unit Installation 2. Selection of The Best Location 2.2 Special guide for installation at the Seaside Windbreak Sea wind Sea wind Sea wind ※ This figure is representative. Actual appearance of outdoor unit may be different by product type. <...
  • Page 68 Installation of Outdoor Unit Installation 2. Selection of The Best Location 2.3 Lifting Method 40˚ or less Sub line Example Support holes for ropes Pass the rope through the support holes at the bottom of the front and rear. (The position or shape of the rope support may differ depending on the product.) * This figure is representative.
  • Page 69 Installation of Outdoor Unit Installation 3. Foundation for Installation Unit : mm Pallet(Wood Support) - Remove before Installation • Install where it can sufficiently support the weight of the outdoor unit. If the support strength is not enough, the outdoor unit may drop and hurt people. •...
  • Page 70 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.1 System diagram Example : 10 Indoor Units connected (Heat Pump / Cooling only System) Aircooled / Watercooled VRF Unit Y Branch / Header !! After Header, Branch pipe can not be used. Indoor Unit Main pipe before 1st Branch B,C,D...
  • Page 71 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.2 Refrigerant piping system design Limit of Piping Length and difference in height Overall Piping Length 300 m (A+B+C1+C2+C3+D+a+b+c+d+e+f+g+i+j+k) Longest pipe length (A+B+C3+D+k) 150 m (200 m**) : between outdoor Unit and the farthest indoor unit Longest pipe Equivalent length* 175 m (225 m**) between outdoor Unit and the farthest indoor unit...
  • Page 72 Installation of Outdoor Unit Installation 4. Refrigerant Piping System Pipe diameter(only Liquid/low pressure gas pipes) between 1st branch and last branch(HR unit) is increased byone step. If the pipe diameter of B, C3 is same as A, it is not necessary. : Ø...
  • Page 73 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.3 Selection of Y Branch ARBLN- (For Heat Pump) : Liquid pipe + Low Pressure Gas Pipe ARBLB- (For Heat Recovery) : Liquid pipe + Low Pressure Gas Pipe + High Pressure Gas Pipe Model Liquid pipe Low Pressure Gas pipe...
  • Page 74 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.4 Selection of Header Liquid pipe Gas pipe Model [Unit : mm] ID12.7 ID6.35 ID6.35 ID12.7 4 Branch ID9.52 120 150 120 150 ID15.88 ARBL054 ID9.52 ID15.88 ID15.88 ID19.05 ID12.7 ID9.52 ID12.7 ID6.35 7 Branch...
  • Page 75 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.5 Selection of Reducer Model Liquid pipe Low Pressure Gas pipe High Pressure Gas pipe [Unit : mm(inch)] Indoor Unit Reducer OD9.52(3/8) Ø6.35(1/4) OD15.88(5/8) Ø 12.7(1/2) OD19.05(3/4) Ø15.88(5/8) Ø12.7(1/2) PRHR023 OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8) OD9.52(3/8) Ø6.35(1/4) OD12.7(1/2)
  • Page 76 Installation of Outdoor Unit Installation 4. Refrigerant Piping System 4.6 Calculation of amount of refrigerant • The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor units. • Please refer to the indoor unit’s PDB or the outdoor/outside unit’s installation manual for the additional refrigerant table of indoor units.
  • Page 77 Installation of Outdoor Unit Installation 5. Electrical Wiring Outdoor Unit Outdoor Unit Indoor Indoor Indoor Indoor Unit Unit Unit Unit Remote Remote control control Remote Remote control control Outdoor Unit Indoor Indoor Unit Unit Outdoor Unit Indoor Indoor Unit Unit Remote Remote control...
  • Page 78 Installation of Outdoor Unit Installation 5. Electrical Wiring • Never connect the main power source to terminal block of communication line. If connected, electrical parts will be burnt out. • Introducing with a missing “N” phase or with a mistaken “N” phase will break the equipment. •...
  • Page 79 Installation of Outdoor Unit Installation 6. Field Wiring 6.1 General Instruction ■ Wiring of Main Power Supply • Bear in mind ambient conditions (ambient temperature,direct sunlight, rain liquid,etc.) when proceeding with the wiring and connections • 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 80 Installation of Outdoor Unit Installation 6. Field Wiring 6.2 Caution for Communication Cable BUS Type STAR Type Connection of communication cable must be installed Abnormal operation can be caused by communication like this figure between indoor unit to outdoor unit. defect, when connection of communication cable is installed like below figure.
  • Page 81 Copyright 2024 LG Electronics Inc. All Rights Reserved. The air conditioners manufactured by LG have received ISO9001 certificate for quality assurance and ISO14001 certificate for environmental management system. The specifications, designs, and information in this brochure are subject to change without notice.

This manual is also suitable for:

Arun080lss5Arun100lss5Arun120lss5