Table of Contents
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INSTALLATION MANUAL
AIR
CONDITIONER
VRF FOR INDOOR
INSTALLAION
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.
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si,
Gyeongsangnam-do, KOREA
For more information, Refer to the CD or LG Web site (www.lg.com).
P/NO : MFL70344401
www.lgcomfortcooling.co.uk
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Related Manuals for LG ARUN050LMC0
Summary of Contents for LG ARUN050LMC0
- Page 1 Please retain this installation manual for future reference after reading it thoroughly. Original instruction [Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA For more information, Refer to the CD or LG Web site (www.lg.com).
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Page 2: Tips For Saving Energy
TIPS FOR SAVING ENERGY • The information contained in the manual is intended for use by a qualified service Here are some tips that will help you minimize the power consumption technician familiar with safety procedures when you use the air conditioner. You can use your air conditioner and equipped with the proper tools and test more efficiently by referring to the instructions below: instruments. - Page 3 • Do not install the product on a defective • If the supply cord is damaged, it must be installation stand. replaced by the manufacturer, its service - It may cause injury, accident, or damage to agent or similarly qualified persons in order the product.
- Page 4 Operation CAUTION • Do not use the air conditioner in special Installation environments. • Always check for gas (refrigerant) leakage after - Oil, steam, sulfuric smoke, etc. can significantly installation or repair of product. reduce the performance of the air conditioner or - Low refrigerant levels may cause failure of damage its parts.
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Page 5: Table Of Contents
TABLE OF CONTENTS • Do not touch any of the refrigerant piping during and after operation. TIPS FOR SAVING ENERGY - It can cause a burn or frostbite. IMPORTANT SAFETY INSTRUCTIONS • Do not operate the air conditioner with the panels INSTALLATION PROCESS or guards removed. -
Page 6: Installation Process
Compressor Module Power Supply : 380-415 V 3N~ 50 Hz Indicate clearly who will be responsible for switch setting. Determination of division work System(HP) Model ARUN050LMC0 Make connection clearly between outdoor, indoor, Preparation of contract drawings remote controller and option. Refrigerant Precharged Amount... -
Page 7: Select The Best Location : Compressor Module
SELECT THE BEST LOCATION : Category Mark Description Installation Space [ mm ] Right 10 or more COMPRESSOR MODULE Left 10 or more Compressor Rear 10 or more Module It must be installed indoors. Front 500 or more Ambient design temprature of compressor module and 200 or more Heat exchange module is 5~35°C (26°C WB) SELECT THE BEST LOCATION :... -
Page 8: Carrying Method
The location of the Anchor bolts • Please transport the product referring to the figure. [Unit : mm] • Use only accessories and parts which are of the designated ARUN050LMC0 specification when installing. Front panel Compressor Module. Heat Exchanger Module. -
Page 9: Installation : Heat Exchanger Module
CASE 2 CAUTION - Install the module leaning to a drainage hole side as a figure for easy • In case of on the floor you should not have to fix the compressor water drainage. module with anchor bolts. Position of console Bolt •... -
Page 10: Heat Exchanger Module Installation
Heat Exchanger Module Installation Method connect the refrigerant piping to the Heat Exchanger Module. - Select and mark the position for fixing bolts. - Drill the hole for set anchor on the face of ceiling. 1. Cut the liquid pipe and gas pipe. Copper Slanted Uneven Rough... -
Page 11: Checking The Drainage
Checking the Drainage Indoor Unit Drain Piping 1. Remove the Air Filter. - Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow. - During drain piping connection, be careful not to exert extra force on the drain port on the Heat Exchanger Module. -
Page 12: Plumbing Materials And Storage Methods
Plumbing materials and storage methods CAUTION Pipe must be able to obtain the specified thickness and should be 1 Always use the nitrogen.(not use oxygen, carbon dioxide, and used with low impurities. a Chevron gas): Please use the following nitrogen pressure Also when handling storage, pipe must be careful to prevent a 0.02MPa Oxygen –... -
Page 13: To Connect The Refrigerant
TO CONNECT THE REFRIGERANT PIPING TO THE COMPRESSOR Charging Port MODULE - Pipe connections can be done on the top side or on the rear side Gas Pipe to according to installation enviroments. Gas Pipe to Heat Exchanger - Be sure to let 0.2kgf/cm Nitrogen flow in the pipe when welding. -
Page 14: Refrigerant Piping System
Selection of Refrigerant Piping Refrigerant piping system Y branch method Compressor Unit Condenser Unit ⓐ : Compressor Module ⓑ : Heat Exchanger Module ⓒ : 1st branch (Y branch) Liquid pipe Gas pipe ⓔ : Indoor Units Branching pipe Main pipe L2 ≤... - Page 15 Refrigerant pipe diameter from branch to branch (B,C) WARNING Downward Indoor • Branch pipe can not be used after header. Unit total capacity Liquid pipe [mm(inch)] Gas pipe [mm(inch)] • Pipe length after header branching [kW(Btu/h)] - It is recommended that difference in length of the pipes ≤...
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Page 16: Refrigerant Charging
Distribution Method WARNING • Regulation for refrigerant leakage Horizontal Distribution : the amount of refrigerant leakage should satisfy the following equation for human safety. Compressor Heat Exchanger Compressor Heat Exchanger Module Module Module Module Total amount of refrigerant in the system ≤0.44 (kg / m Volume of the room at which Indoor Unit of the least capacity is installed... -
Page 17: Branch Pipe Fitting
Branch pipe Fitting • Header should be insulated with the insulator in each kit. Y branch Insulate the header using the insulation Ⓐ To Branch Piping or Indoor Unit material attached to the branch pipe kit Ⓑ To Outdoor Unit as shown in the figure. -
Page 18: Leak Test And Vacuum Drying
Leak Test and Vacuum drying Vacuum Vacuum drying should be made from the service port provided on the outside Leak test 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 Leak test should be made by pressurizing nitrogen gas to 3.8 pipe and high/low pressure common pipe with the service valve closed.) MPa(38.7kgf/cm... -
Page 19: Vacuum Mode
Vacuum Mode Thermal insulation of refrigerant piping This function is used for creating vacuum in the system after Be sure to give insulation work to refrigerant piping by covering liquid compressor replacement, ODU parts replacement or IDU pipe and gas pipe separately with enough thickness heat-resistant addition/replacement. -
Page 20: Electrical Wiring
Penetrations Compressor Module Heat Exchanger Module Inner wall (concealed) Outer wall Outer wall (exposed) Indoor Indoor Unit Unit Remote Remote control control Compressor Module Heat Exchanger Module Floor (fireproofing) Penetrating portion on fire Roof pipe shaft Indoor Indoor Unit Unit limit and boundary wall Remote Remote... -
Page 21: Wiring Of Main Power Supply And Equipment Capacity
Communication and Power Cables CAUTION Communication cable When the 400 volt power supply is applied to “N” phase by mistake, - Types : shielding cable check damaged parts in control box and replace them. - Cross section : 1.0~1.5mm - Maximum allowable temperature: 60°C - Maximum allowable cable length: under 300m Control box and connecting position of wiring Remote control cable... -
Page 22: Field Wiring
WARNING WARNING • Follow ordinance of your governmental organization for • Indoor Unit ground wires are required for preventing electrical shock technical standard related to electrical equipment, wiring accident during current leakage, Communication disorder by noise regulations and guidance of each electric power company. effect and motor current leakage (without connection to pipe). -
Page 23: Checking The Setting Of Outside Units
Automatic Addressing The address of indoor units would be set by Automatic Addressing - Wait for 3 minutes after supplying power. (Master and Slave outside units, indoor units) - Press RED button of the outside units for 5 seconds. (SW01C) - A “88”... -
Page 24: Group Number Setting
Cool & Heat selector Mode Function Option Value Action Remarks Content Display1 Content Display2 Content Display3 Content Display4 Implement Display5 Mode setting method Change Save in Cool & Heat oFF op1~ Selected the set Blank Master unit PCB DIP switch on : No.5 Selector the option EEPROM... -
Page 25: Night Low Noise Function
Night Low Noise Function Snow removal & rapid defrost In cooling mode, this function makes the ODU fan operate at low RPM Mode setting method to reduce the fan noise of ODU at night which has low cooling load. Master unit PCB DIP switch on : No.5 Night low noise function setting method Select the mode using ‘▶’, ‘◀’... -
Page 26: Self-Diagnosis Function
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 outside unit control board as shown in the table. - Page 27 Display Title Cause of Error Omitting connection of R, S, T power of Outdoor Unit Omitting connection of outside unit Excessive connection of indoor units compared to capacity of Excessive capacity of indoor units Outdoor Unit Communication error : inverter PCB → Main PCB Failing to receive inverter signal at main PCB of Outdoor Unit Communication error : indoor unit →...
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Page 28: Caution For Refrigerant Leak
CAUTION FOR REFRIGERANT LEAK - With partition and without opening which serve as passage of air to adjoining room Compressor Heat Exchanger The installer and system specialist shall secure safety against leakage Module Module according to local regulations or standards. The following standards may be applicable if local regulations are not available. -
Page 29: Installation Guide At The Seaside
INSTALLATION GUIDE AT THE Model Designation SEASIDE Product information • Product Name : Air conditioner CAUTION • Model Name : • Air conditioners should not be installed in areas where Model corrosive gases, such as acid or alkaline gas, are produced. Name •... - Page 30 www.lgcomfortcooling.co.uk...
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