LG MULTI V S ARUN030GSS0 Installation Manual
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LG MULTI V S ARUN030GSS0 Installation Manual

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1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 1
INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring standards
by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.
ARUN040LSS0 ARUN080LSS0 ARUN030GSS0 ARUN060GSS0
ARUN050LSS0 ARUN100LSS0 ARUN040GSS0
ARUN060LSS0 ARUN120LSS0 ARUN050GSS0
MFL67798030
Rev.03_061818
I.15.LG5.01605.0416
Copyright © 2015 - 2018 LG Electronics Inc. All Rights Reserved.
www.lg.com

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  • Page 1 Please retain this installation manual for future reference after reading it thoroughly. ARUN040LSS0 ARUN080LSS0 ARUN030GSS0 ARUN060GSS0 ARUN050LSS0 ARUN100LSS0 ARUN040GSS0 ARUN060LSS0 ARUN120LSS0 ARUN050GSS0 I.15.LG5.01605.0416 www.lg.com MFL67798030 Copyright © 2015 - 2018 LG Electronics Inc. All Rights Reserved. Rev.03_061818...
  • Page 2 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...

  • Page 3: Important Safety Instructions

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 3 IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 4 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 4 IMPORTANT SAFETY INSTRUCTIONS • When installing and moving the air conditioner to another site, do not charge it with a different refrigerant from the refrigerant specified on the unit. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.
  • Page 5 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. - It may cause a problem for your neighbors.
  • Page 6 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 6 IMPORTANT SAFETY INSTRUCTIONS • Safely dispose of the packing materials. - Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. - Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation.

  • Page 7: Table Of Contents

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 7 TABLE OF CONTENTS TABLE OF CONTENTS Refrigerant piping system TIPS FOR SAVING Refrigerant charging ENERGY Distribution Method Branch pipe Fitting IMPORTANT SAFETY Leak Test and Vacuum drying INSTRUCTIONS Vacuum Mode Heat insulation of refrigerant piping INSTALLATION ELECTRICAL WIRING PROCESS...

  • Page 8: Installation Process

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 8 INSTALLATION PROCESS INSTALLATION PROCESS Indicate clearly who will be responsible for switch setting. Determination of division work Preparation of contract drawings Make connection clearly between outdoor, indoor, remote controller and option. Take account of gradient The foundation must be level even Sleeve and insert work Outdoor unit foundation work...

  • Page 9: Outdoor Units Information

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 9 OUTDOOR UNITS INFORMATION OUTDOOR UNITS INFORMATION CAUTION • Ratio of the connectable Indoor Units to the Outdoor: Within 50 ~ 160% • Ratio of running Indoor Units to the Outdoor: Within 10 ~ 100% •...

  • Page 10: Alternative Refrigerant R410A

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 10 ALTERNATIVE REFRIGERANT R410A ALTERNATIVE REFRIGERANT R410A The refrigerant R410A has the property of higher operating pressure in comparison with R22. Therefore, all materials have the characteristics of higher resisting pressure than R22 ones and this characteristic should be also considered during the installation.

  • Page 11: Select The Best Location

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 11 SELECT THE BEST LOCATION SELECT THE 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 by noise from unit •...

  • Page 12: Installation Space

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 12 INSTALLATION SPACE INSTALLATION SPACE • The following values are the least space for installation. If any service area is needed for service according to field circumstance, obtain enough service space. • The unit of values is mm. In case of obstacles on the suction side 1.
  • Page 13 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 13 INSTALLATION SPACE In case of obstacles on the discharge side 1. Stand alone installation [Unit:mm] 2. Collective installation ARUN030*SS0, ARUN040*SS0 ARUN050*SS0, ARUN060*SS0 ARUN100LSS0, ARUN120LSS0 ARUN080*SS0 500 or more 700 or more...
  • Page 14 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 14 INSTALLATION SPACE In case of obstacles on the suction and the discharge side Obstacle height of discharge side is higher than the unit 1. Stand alone installation [Unit:mm] L > H L > H 2.
  • Page 15 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 15 INSTALLATION SPACE Obstacle height of discharge side is lower than the unit 1. Stand alone installation [Unit:mm] L ≤ H L ≤ H 2. Collective installation L ≤ H L ≤ H...

  • Page 16: Collective / Continuous Installation For Roof Top Use

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 16 INSTALLATION SPACE Collective / Continuous Installation for roof top use Space required for collective installation and continuous installation: When installing several units, leave space between each block as shown below considering passage for air and people. 1.
  • Page 17 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 17 INSTALLATION SPACE Seasonal wind and cautions in winter • Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. • Get ready for seasonal wind or snow in winter even in other areas. •...

  • Page 18: Lifting Method

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 18 LIFTING METHOD LIFTING METHOD • When carrying the suspended, unit pass the ropes between legs of base panel under the unit. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •...

  • Page 19: Installation

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 19 INSTALLATION INSTALLATION • Install at places where it can endure the weight and vibration/noise of the outdoor unit. • The outdoor unit supports at the bottom shall have width of at least 100mm under the Unit’s legs before being fixed.

  • Page 20: Foundation For Installation

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 20 INSTALLATION Foundation for Installation • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use the H-beam support as a base support •...

  • Page 21: Preparation Of Piping

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 21 INSTALLATION Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable - Use the accessory piping kit or the pipes Copper Slanted Uneven Rough tube...
  • Page 22 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 22 INSTALLATION Flare shape and flare nut tightening torque Precautions when connecting pipes - See the following table for flare part machining dimensions. - When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first.
  • Page 23 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 23 INSTALLATION Closing shutoff valve Remove the cap and turn the valve clockwise with the hexagon wrench. Securely tighten the valve until the shaft contacts the main body seal. Make sure to tighten the cap securely. - For the tightening torque, refer to the table on the below.

  • Page 24: Plumbing Materials And Storage Methods

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 24 INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture.
  • Page 25 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 25 INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.

  • Page 26: Refrigerant Piping Installation

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 26 REFRIGERANT PIPING INSTALLATION REFRIGERANT PIPING INSTALLATION Precautions on Pipe connection / Valve operation Pipe connection is done by connecting from the end of the pipe to the branching pipes, and the refrigerant pipe coming out of the outdoor unit is divided at the end to connect to each indoor unit.

  • Page 27: Pipe Connections Between Indoor And Outdoor Unit

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 27 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT - Pipe connections can be done on the front side or on the side according to the installation - Be sure to let 0.2kgf/cm Nitrogen flow in the pipe when welding.

  • Page 28: Pipe Drawing Out

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 28 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Remove leakage prevention cap • Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work. • Proceed the leakage prevention cap removal as follows: - Verify whether the liquid/gas pipes are locked.
  • Page 29 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 29 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Method of drawing out pipes on the bottom side - Drawing out common pipe through base panel Liquid pipe Gas pipe Remove only liquid/gas pipe Knock out Method of drawing out pipes on the rear side - Proceed with the pipe work as shown in the below figure for rear side pie drawing out.

  • Page 30: Selection Of Refrigerant Piping

    1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 30 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Selection of Refrigerant Piping Outdoor unit Gas pipe Liquid pipe Branching pipe Main pipe Indoor unit Branching pipe Piping parts Name Selection of pipe size Size of main pipe Outdoor unit Liquid pipe...

  • Page 31: Refrigerant Piping System

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 31 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant piping system Y branch method Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Indoor Units L150m l 40m Total pipe length = A+B+C+D+a+b+c+d+e ≤...
  • Page 32 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 32 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from outdoor unit to first branch. (A) Outdoor unit Liquid pipe [mm(inch)] Gas pipe [mm(inch)] total capacity (HP) Ø9.52(3/8) Ø15.88(5/8) Ø9.52(3/8) Ø15.88(5/8) Ø9.52(3/8) Ø19.05(3/4) Ø9.52(3/8)
  • Page 33 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 33 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Header Method Example : 6 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : Header Ⓒ : Indoor Units Ⓓ : Sealed piping L 150m Total pipe length = A+a+b+c+d+e+f ≤...
  • Page 34 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 34 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Combination of Y branch/header method Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Y branch Ⓓ...
  • Page 35 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 35 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from outdoor unit to first branch. (A) Outdoor unit Liquid pipe [mm(inch)] Gas pipe [mm(inch)] total capacity(HP) Ø9.52(3/8) Ø15.88(5/8) Ø9.52(3/8) Ø15.88(5/8) Ø9.52(3/8) Ø19.05(3/4) Ø9.52(3/8) Ø19.05(3/4)
  • Page 36 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 36 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Outdoor unit Connection WARNING • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Indoor Unit Connection Indoor Unit connecting pipe from branch (a,b,c,d,e,f) Indoor Unit capacity...
  • Page 37 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 37 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor unit. Additional charge(kg) Total liquid pipe : Ø12.7 mm x 0.118(kg/m)

  • Page 38: Refrigerant Charging

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 38 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT WARNING • Regulation for refrigerant leakage : the amount of refrigerant leakage should satisfy the following equation for human safety. Total amount of refrigerant in the system ≤...

  • Page 39: Distribution Method

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 39 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Distribution Method Horizontal Distribution 3rd main pipe distribution Main pipe Distribution Main pipe Distribution Vertical Distribution - Ensure that the branch pipes are attached vertically. The others Header...

  • Page 40: Branch Pipe Fitting

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 40 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Branch pipe Fitting Y branch Ⓐ To Branch Piping or Indoor Unit Ⓑ To Outdoor Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal Facing Facing...
  • Page 41 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 41 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT • 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. Pinched pipe •...
  • Page 42 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 42 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Y branch pipe [unit:mm] Models Gas pipe Liquid pipe I.D12.7 I.D12.7 I.D6.35 I.D.6.35 I.D9.52 I.D15.88 I.D9.52 I.D15.88 I.D15.88 I.D.6.35 I.D15.8 I.D15.88 I.D15.88 ARBLN01621 I.D15.88 I.D.9.52 I.D12.7 I.D15.88 I.D15.88...
  • Page 43 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 43 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Header [unit:mm] Models Gas pipe Liquid pipe ID12.7 ID6.35 ID12.7 ID6.35 4 branch ID9.52 ID15.88 ID9.52 ID15.88 ARBL054 ID15.88 ID12.7 ID19.05 ID9.52 ID6.35 ID12.7 7 branch ID12.7 ID9.52 120 150...

  • Page 44: Leak Test And Vacuum Drying

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 44 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Leak Test and Vacuum drying Leak test Leak test should be made by pressurizing nitrogen gas to 3.8 MPa(38.7kgf/cm ). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen leaks.
  • Page 45 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 45 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Vacuum Vacuum drying should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas pipe and high/low pressure common pipe with the service valve closed.) * Never perform air purging using refrigerant.

  • Page 46: Vacuum Mode

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 46 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Vacuum Mode This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Vacuum mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...

  • Page 47: Heat Insulation Of Refrigerant Piping

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 47 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Heat 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 48: Electrical Wiring

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 48 ELECTRICAL WIRING ELECTRICAL WIRING Caution - Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. WARNING Be sure to have authorized electrical engineers do the electric work using special circuits in accordance with regulations and this installation manual.
  • Page 49 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 49 ELECTRICAL WIRING CAUTION • Use the 2-core shield cables for communication cables. Never use them together with power cables. • The conductive shielding layer of cable should be grounded to the metal part of both units. •...

  • Page 50: Control Box And Connecting Position Of Wiring

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 50 ELECTRICAL WIRING Control box and connecting position of wiring - Remove all of the screws at side panel and remove the panel by pulling it forward. - Connect communication cables between outdoor unit and indoor units through the terminal block.

  • Page 51: Communication And Power Cables

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 51 ELECTRICAL WIRING Communication and Power Cables Communication cable - Types : shielding cable - Cross section : 1.0~1.5mm - Maximum allowable temperature: 60°C - Maximum allowable cable length: under 300m Remote control cable - Types : 3-core cable Central control cable Product type...

  • Page 52: Wiring Of Main Power Supply And Equipment Capacity

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 52 ELECTRICAL WIRING Wiring of main power supply and equipment capacity - Use a separate power supply for the Outdoor Unit and Indoor Unit. - Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

  • Page 53: Field Wiring

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 53 ELECTRICAL WIRING Field Wiring Outdoor Power supply (3-phase 4-wire) [Outdoor Unit] (Main Switch) R S T N Voltage range(V) Switch Frequency Outdoor Indoor Fuse Indoor 60Hz 380V 220V Power supply (1-phase 2-wire) 50Hz 380~415V 220~240V Power cable...
  • Page 54 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 54 ELECTRICAL WIRING Example) Connection of transmission wire [BUS type] [STAR type] - Connection of communication cable must be - Abnormal operation can be caused by installed like below figure between indoor communication defect, when connection of unit to outdoor unit.
  • Page 55 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 55 ELECTRICAL WIRING Example) Connection of power and communication cable 10HP/12HP/14HP Right side Front side Main power Insulation sleeves Terminal block attachment Ground wire Fix firmly not to be Power/ displaced Ground cable ODU-IDU Communication cable Hold power cable...
  • Page 56 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 56 ELECTRICAL WIRING Front view Right view Main power Terminal block Insulation sleeves Ground wire attachments Power/ Ground cable ODU-IDU Communication cable Over 50mm gap Power/ Communication Ground cable cable...

  • Page 57: Installation Of Io Module(Optional)

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 57 ELECTRICAL WIRING Installation of IO Module(optional) ① Assemble IO Module and bracket. ② Fix the bracket on designated location with two clamp cords(105mm). ③ Connect the connection wires according to the instructions. (Please refer to Setting and Using Method) - About more information of IO Module, please refer to IO Module manual.

  • Page 58: Checking The Setting Of Outdoor Units

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 58 ELECTRICAL WIRING Checking the setting of outdoor units Checking according to dip switch setting - You can check the setting values of the Master outdoor unit from the 7 segment LED. The dip switch setting should be changed when the power is OFF. Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds after applying the power.

  • Page 59: Automatic Addressing

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 59 ELECTRICAL WIRING Automatic Addressing The address of indoor units would be set by Automatic Addressing - Wait for 3 minutes after supplying power. (IDU and ODU should be off) - Press RED button of the outdoor units for 5 seconds. (SW01C) - A “88”...
  • Page 60 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 60 ELECTRICAL WIRING The Procedure of Automatic Addressing Power On Waiting 3 minutes Press RED Button for 5 s (SW01C) Automatic addressing start 7-segment LED = 88 Don’t press RED Button (SW01C) • Automatic addressing setting end Numbers of indoor unit connection set whose addressing is completed are indicated for 30seconds Waiting about 2~7 minutes...
  • Page 61 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 61 ELECTRICAL WIRING Setting the function Select the mode/function/option/value using ‘▶’, ‘◀’ Button and confirm that using the ‘●’ button after dip switch No.5 is turned on. DIP-SW01 7 - Segment SW04C ( : cancel) SW03C ( : forward) SW02C ( : backward) SW01C (...

  • Page 62: Group Number Setting

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 62 ELECTRICAL WIRING Group Number setting Group Number setting for Indoor Units - Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. - The communication cables connected to CEN.A and CEN.B terminal should be connected to central control of Outdoor Unit with care for their polarity (A-A, B-B ).

  • Page 63: Cool & Heat Selector

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 63 ELECTRICAL WIRING Cool & Heat selector Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn1”...

  • Page 64: Static Pressure Compensation Mode

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 64 ELECTRICAL WIRING Static pressure compensation mode This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU. Static pressure compensation mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...

  • Page 65: Night Low Noise Function

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 65 ELECTRICAL WIRING Night Low Noise Function In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load. Night low noise function setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...

  • Page 66: Setting The Odu Address

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 66 ELECTRICAL WIRING Setting the ODU address Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn5”...

  • Page 67: Snow Removal & Rapid Defrost

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 67 ELECTRICAL WIRING Snow removal & rapid defrost Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn6”...

  • Page 68: Target Pressure Adjusting

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 68 ELECTRICAL WIRING Target pressure adjusting Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : Select the Function using ‘▶’, ‘◀’...

  • Page 69: Self-Diagnosis Function

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 69 ELECTRICAL WIRING Self-Diagnosis Function Error Indicator - This function indicates types 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 outdoor unit control board as shown in the table.
  • Page 70 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 70 ELECTRICAL WIRING Display Title Cause of Error Outdoor Unit Inverter Compressor The First Start Failure by Outdoor Unit Inverter Start Failure Compressor Abnormality Outdoor Unit Inverter Compressor Outdoor Unit Inverter Compressor Fault OR Drive Fault Over Current Outdoor Unit Inverter Compressor1 Outdoor Unit Inverter Compressor1 High Discharge...
  • Page 71 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 71 ELECTRICAL WIRING Display Title Cause of Error 7 Outdoor Unit Fan Lock Restriction of Outdoor Unit Converter CT Sensor Error of Converter CT Sensor open or short of Outdoor Unit Outdoor Unit Outdoor Unit Main PCB EEPROM Communication Fail Between Outdoor Unit Main Error...

  • Page 72: Caution For Refrigerant Leak

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 72 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. 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...
  • Page 73 1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 73 CAUTION FOR REFRIGERANT LEAK - With partition and without opening which serve as passage of air to adjoining room Outdoor unit Indoor unit Smallest room Calculate refrigerant concentration Total amount of replenished refrigerant in refrigerant facility (kg) In case the result of calculation exceeds = Refrigerant concentration...

  • Page 74: Installation Guide At The Seaside

    1,MFL67798030,영영 2018. 12. 7. 영영 1:37 Page 74 INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE CAUTION In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind. •...
  • Page 75 1,MFL67798030,영영 2018. 12. 7. 영영 1:36 Page 100 PT.LG Electronics Indonesia Gandaria 8 Office Tower Lt. 29 BC & 31 ABCD Jl.Sultan Iskandar Muda, Kebayoran Lama Utara - Kebayoran Lama, Jakarta Selatan - DKI Jakarta Raya, Indonesia...

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