LG ARNU 4 Series Installation Manual

LG ARNU 4 Series Installation Manual

Wall mounted

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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.
WALL MOUNTED
Original instruction
P/NO : MFL69485426
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
http://www.lghvac.com
www.lg.com

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Summary of Contents for LG ARNU 4 Series

  • Page 1 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. WALL MOUNTED Original instruction http://www.lghvac.com www.lg.com P/NO : MFL69485426 Copyright © 2018 LG Electronics Inc. All Rights Reserved.
  • Page 2 IMPORTANT! Please read this instruction sheet completely before installing the product. This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. WARNING •...
  • Page 3: Tips For Saving Energy

    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 4: Important Safety Instructions

    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...
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS • Always ground the product. - There is risk of fire or electric shock. • Install the panel and the cover of control box securely. - There is risk of fire or electric shock. • Always install a dedicated circuit and breaker. - Improper wiring or installation may cause fire or electric shock.
  • Page 6 IMPORTANT SAFETY INSTRUCTIONS • Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. - Otherwise, it may cause fire, electric shock, explosion or death. - For refrigerant leakage, consult your dealer. When the air conditioner is to be installed in a small room, it is necessary to take proper measures so that the amount of any leaked refrigerant does not exceed the limiting concentration even...
  • Page 7: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION PARTS INSTALLATION TOOLS INSTALLATION MAP INSTALLATION Select the best Location Fixing Installation Plate (SJ/SK) Drill a Hole in the Wall Flaring Work Connecting the Piping Checking the Drainage Manual the decor, air filter Assembly &...
  • Page 8: Installation Parts

    INSTALLATION PARTS INSTALLATION PARTS Name Quantity Shape Installation plate 1 EA Drain hose 1 EA Type "A" screw 5 EA Type "C" screw 2 EA Cloth tape 1 EA Conduit 1 EA mounting plate Cloth tape is not attached to the product. INSTALLATION TOOLS Figure Name...
  • Page 9: Installation Map

    INSTALLATION MAP INSTALLATION MAP Installation plate Sleeve Bushing-Sleeve Putty(Gum Type Sealant) Bend the pipe as closely on the wall as possible, but be careful that it doesn't break. Vinyl tape (Wide) • Apply after carrying out a drainage test. • To carry out the drainage test, remove the air filters Saddle and pour water into the heat...
  • Page 10: Installation

    INSTALLATION INSTALLATION Installation Plate Select the best Location - There should not be any heat or steam near the unit. - Select a place where there are no obstacles Type "A" Screws around of the unit. - Make sure that condensation drainage can be conveniently routed away.
  • Page 11: Drill A Hole In The Wall

    INSTALLATION Drill a Hole in the Wall Burrs removal - Drill the piping hole with a ø65 mm hole core 1. Completely remove all burrs from the cut drill. Drill the piping hole at either the right or cross section of pipe/tube. the left with the hole slightly slanted to the 2.
  • Page 12: Connecting The Piping

    INSTALLATION <Wing nut type> Pull back the tubing holder. Remove pipe port cover and positioning "A" the tubing Tubing holder Indoor unit back side view Copper pipe <Clutch type> Right Left Backwards Downwards * The feature can be changed according to type of model.
  • Page 13 INSTALLATION Good case Bad case - Press on the tubing cover and unfold the - Following bending case from right to left tubing to downward slowly. And then bend directly may cause damage to the tubing. to the left side slowly. * The feature can be changed according to type of model.
  • Page 14 INSTALLATION <Right side piping> Installation of Indoor Unit Hook the indoor unit onto the upper portion of the installation plate.( engage the three hooks at the top of the indoor unit with the upper edge of the installation plate) Ensure that the hooks are properly seated on the installation plate by moving View Slide up the metal...
  • Page 15 INSTALLATION Wrap the insulation material CAUTION around the connecting portion. If the drain hose is routed inside the room Overlap the connection pipe insulation insulate the hose with an insulation material* material and the indoor unit pipe insulation so that dripping from sweating condensation) material.
  • Page 16: Checking The Drainage

    INSTALLATION Checking the Drainage Finishing the indoor unit installation To check the drainage Mount the tubing holder in the original Pour a glass of water on the evaporator. position. Ensure the water flows through the drain Ensure that the hooks are properly seated hose of the indoor unit without any on the installation plate by moving it left leakage and goes out the drain exit.
  • Page 17 INSTALLATION Do not make drain piping like the following. Do not raise Water leakage Accumulated drain water Water Waving leakage Tip of drain hose dipped in water Water leakage Ditch Less than 50mm gap * The feature can be changed according to type of model.
  • Page 18: Manual The Decor, Air Filter Assembly & Disassembly

    INSTALLATION Manual the decor, air filter Assembly & Disassembly...
  • Page 19: Wiring Connection

    INSTALLATION Wiring Connection - Connect the wires to the terminals on the control board individually according to the outdoor unit connection. - Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively.
  • Page 20 INSTALLATION Precautions when laying power and ground wiring Use round pressure terminals for connections to the power terminal block. When laying ground wiring, you must use round pressure terminals. Power wire (Ground wire) Round pressure terminal When none are available, follow the instructions below. - Do not connect wiring of different thicknesses to the power terminal block.
  • Page 21 INSTALLATION CAUTION Be sure to test the power line and communication line for incorrect wiring before power is applied. 1) If the power line and communication line are swapped over, the product will be damaged. 2) Incorrect wiring confirmation test method : Measure the resistance across the power terminals (L,N) using a multi meter.
  • Page 22: Dip Switch Setting

    INSTALLATION DIP Switch Setting Indoor Unit Function Description Setting Off Setting On Default SW1 Communication N/A (Default) SW2 Cycle N/A (Default) Selection of Master SW3 Group Control Master Slave or Slave Wired/Wireless remote Dry Contact Selection of Dry controller Auto Mode Contact Mode Selection of Manual or...
  • Page 23: Group Control Setting

    INSTALLATION Group Control Setting Group Control 1 n Wired remote controller 1 + Standard Indoor Units LGAP Network System Signal Master Slave Slave Slave 12 V Display Error Message Only connect serial signal and GND lines between indoor units. Master n DIP Switch in PCB ①...
  • Page 24 INSTALLATION * It is possible to connect indoor units since Feb. 2009. * It can be the cause of malfuctions when there is no setting of master and slave. * In case of Group Control, it is possible to use following functions. - Selection of operation, stop or mode - Temperature setting and room temperature check - Current time change...
  • Page 25 INSTALLATION Group Control 3 n Mixture connection with indoor units and Fresh Air Intake Unit LGAP Network System Signal Master Slave Master Slave 12 V Display Error Message Display Error Message Master Master * In case of connecting with standard indoor unit and Fresh Air Intake Unit, separate Fresh Air Intake Unit with standard units.
  • Page 26 INSTALLATION 2 Remote Control n Wired remote controller 2 + Indoor unit 1 LGAP Network System Slave Slave Slave Signal Master 12 V Display Error Message Master Slave 1. It is possible to connect two wired remote controllers (Max.) with one indoor unit. Set only one indoor unit to Master, set the others to Slave.
  • Page 27 INSTALLATION Accessories for group control setting It is possible to set group control by using below accessories. Indoor unit 2 EA +Wired remote controller Indoor unit 1 EA +Wired remote controller 2EA * PZCWRCG3 cable used for connection * PZCWRC2 cable used for connection Slave Master PZCWRC2...
  • Page 28: Model Designation

    INSTALLATION Model Designation Serial Number Combinations of functions A:Basic function L: Neo Plasma(Wall Mounted) C: Plasma(Ceiling Cassette) N : Ionizer G: Low Static K: High Sensible Heat U: Floor Standing without Case SE/S8/SJ/SK - R: Mirror V: Silver B:Blue(ART COOL Type Panel Color) - E: Red V: Silver G:Gold 1: Kiss (Photo changeable)
  • Page 29 1. Please call the installing contractor of your product, as warranty service will be provided by them. 2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026. CANADA Service call Number # : LG Canada, 1-888-542-2623...

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