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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.
CEILING CASSETTE - 1 WAY
Original instruction
MFL68686521
Rev.01_032125
Copyright © 2017 - 2025 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Related Manuals for LG ARNU09GTUD4
Summary of Contents for LG ARNU09GTUD4
- 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. CEILING CASSETTE - 1 WAY Original instruction www.lg.com MFL68686521 Rev.01_032125 Copyright © 2017 - 2025 LG Electronics Inc. All Rights Reserved.
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Page 2: Table Of Contents
Table of Contents TABLE OF CONTENTS INSTALLATION PARTS SAFETY PRECAUTIONS INSTALLATION Selection of the Best Location Ceiling Dimension and Hanging Bolt Location Wiring Connection Installation of Decoration Panel (Panel Type) Installation of Decoration Panel (Grille Type) Drain Piping DIP Switch Setting Group Control Setting Model Designation Airborne Noise Emission... -
Page 3: Installation Parts
Installation Parts Installation Parts Panel type Grille type Air Outlet Air Intake Wired Remote Controller Intake Intake Air Outlet Wired Remote Controller (Accessory) (Accessory) Installation Tool Washer for Insulation for Plastic band Name Drain hose Clamp metal hanging bracket fitting Quantity 1 EA 2 EA... -
Page 4: Safety Precautions
Safety Precautions Safety Precautions The following symbols are displayed on indoor and outdoor units. Read the precautions in this manual This appliance is filled with flammable carefully before operating the unit. refrigerant (R32) This symbol indicates that a service This symbol indicates that the Operation personnel should be handling this Manual should be read carefully. -
Page 5: Operation
Safety Precautions • Do not install, remove, or re-install the unit by yourself (customer). - There is risk of fire, electric shock, explosion, or injury. • Be cautious when unpacking and installing the product. - Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. - Page 6 Safety Precautions • Take care to ensure that power cable could not be pulled out or damaged during operation. - There is risk of fire or electric shock. • Do not place anything on the power cable. - There is risk of fire or electric shock. •...
- Page 7 Safety Precautions • When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker. - There is risk of product damage or failure, or unintended operation. • Take care to ensure that nobody could step on or fall onto the outdoor unit.
- Page 8 Safety Precautions • Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry- accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification.
- Page 9 Safety Precautions • Always insert the filter securely. Clean the filter every two weeks or more often if necessary. - A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. • Do not insert hands or other objects through the air inlet or outlet while the product is operated.
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Page 10: Installation
Installation Installation Read completely, then follow step by step. Selection of the Best Location • There should not be any heat source or steam near the unit. • There should not be any obstacles to the air circulation. • A place where air circulation in the room will be good. •... - Page 11 Installation Minimum floor area (for R32) - The appliance shall be installed, operated and stored in a room with a floor area larger than the minimum area. - Use the graph of table to determine the minimum area. Amin (m Floor standing Wall mounted Ceiling mounted...
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Page 12: Ceiling Dimension And Hanging Bolt Location
Installation Ceiling Dimension and Hanging Bolt Location • The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions. 1 385(Ceiling opening) 1 285(Hanging bolt) Ceiling Level gauge 1 180 TT Chassis CAUTION 1 065(Ceiling opening) 965(Hanging bolt) •... -
Page 13: 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 14: Installation Of Decoration Panel (Panel Type)
Installation Installation of Decoration Panel (Panel Type) The decoration panel has its installation Before installing the decoration panel, direction. always remove the paper template. 1. Open the air outlet vane, and extract side covers. 2. Remove the air inlet panel from the decoration panel. 3. -
Page 15: Installation Of Decoration Panel (Grille Type)
Installation Installation of Decoration Panel (Grille Type) The decoration panel has its installation Before installing the decoration panel, direction. always remove the paper template. 1. Open the air outlet vane, and extract side covers. 2. Remove the air inlet grille from the decoration panel. 3. -
Page 16: Drain Piping
Installation Drain Piping • Drain piping must have down-slope (1/50 to 1/100): be sure not to Upward provide up-and-down slope to prevent reversal flow. Pipe clamp routing • During drain piping connection, be careful not to exert extra force not allowed on the drain port on the indoor unit. -
Page 17: Dip Switch Setting
Installation DIP Switch Setting 1. Indoor Unit Function Description Setting Off Setting On Default Communication N/A (Default) Cycle N/A (Default) Group Control Selection of Master or Slave Master Slave Dry Contact Mode Selection of Dry Contact Wired/Wireless remote Mode controller Auto Selection of Manual or Auto operation Mode... -
Page 18: Group Control Setting
Installation Group Control Setting 1. Group Control 1 n Wired remote controller 1 + Standard Indoor Units LGAP Network System Signal Master Slave Slave Slave 12 V Only connect serial signal and GND lines between indoor units. Display Error Message Master n DIP Switch in PCB ¿... - Page 19 Installation h It is possible to connect indoor units since Feb. 2009. h It can be the cause of malfuctions when there is no setting of master and slave. h 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 20 Installation 3. 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 Master Master h In case of connecting with standard indoor unit and Fresh Air Intake Unit, separate Fresh Air Intake Unit with standard units.
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Page 21: Remote Control
Installation 4. 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 22 Installation 5. Accessories for group control setting It is possible to set group control by using below accessories. Indoor unit 2 EA + Wired remote controller 1 EA Indoor unit 1 EA + Wired remote controller 2 EA h PZCWRCG3 cable used for connection h PZCWRC2 cable used for connection Slave Master...
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Page 23: Model Designation
Installation Model Designation Serial Number Combinations of functions A/B : Basic function L : Neo Plasma(Wall Mounted) C/D : Plasma(Ceiling Cassette) G : Low Static K : High Sensible Heat U : Floor Standing without Case SE/S8 - R : Mirror V : Silver B : Blue(ART COOL Type Panel Clolr) SF - E : Red V : Silver G : Gold 1 : Kiss (Photo changeable) - Page 24 Indoor Unit...
- Page 25 LG Electronics Inc. 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA UK Importer : LG Electronics U.K. Ltd Velocity 2, Brooklands Drive, Weybridge, KT13 0SL Eco design requirement • The information for Eco design is available on the following free access website.
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