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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.
TYPE : Ceiling Concealed Duct
P/NO : MFL67939901
www.lg.com

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Summary of Contents for LG ABNQ18GM1A0

  • Page 1 • 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. TYPE : Ceiling Concealed Duct www.lg.com P/NO : MFL67939901...
  • 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

    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 IMPORTANT SAFETY INSTRUCTIONS Operation • Do not let the air conditioner run for a long time when the humidity is very high and a door or a win- dow is left open. Moisture may condense and wet or damage furniture. •...
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS Operation • Do not expose the skin directly to cool air for long periods of time.(Don't sit in the draft.) This could harm to your health. • Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a con- sumer air conditioner, not a precision refrigeration system.
  • Page 6: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING EN- REMOTE CONTROLLER ERGY INSTALLATION Group control Two remote controller IMPORTANT SAFETY IN- STRUCTIONS OPTIONAL OPERATION Installer Setting -Test Run Mode INTRODUCTION Installer Setting - Setting Address of Features Central Control Installer Setting -Thermistor INSTALLATION OF IN- Installer Setting-Remote Controller...
  • Page 7: Introduction

    INTRODUCTION INTRODUCTION Features Air inlet vents Air outlet vents Remote SPEED TEMP Controller OPER MODE Clamp Washer for Insulation for Name Drain hose Clamp metal (Tie Wrap) hanging bracket fitting Other Quantity 1 EA 2 EA 8 EA 4 EA 1 set •...
  • Page 8: Installation Of Indoor

    INSTALLATION OF INDOOR INSTALLATION OF INDOOR Selection of the best location Ceiling dimension and hanging bolt location Install the air conditioner in the location that satisfies the following conditions. Install the unit above the ceiling correctly. - The place shall easily bear a load exceeding four times the indoor unit’s weight.
  • Page 9 INSTALLATION OF INDOOR Select and mark the position for fix- CASE 2 ing bolts - Install the unit leaning to a drainage hole side - Drill the hole for set anchor on the face of as a figure for easy water drainage. ceiling.
  • Page 10: Wiring Connection

    INSTALLATION OF INDOOR Wiring Connection CAUTION • Open the control box cover and connect the The Power cord connected to the unit Remote controller wiring and Indoor power should be selected according to the fol- wires. lowing specifications. • Remove the control box cover for electrical Precautions when laying power wiring connection between the indoor and outdoor Use round pressure terminals for connec-...
  • Page 11 INSTALLATION OF INDOOR - Upward routing not allowed CAUTION • Install declination of the indoor unit is very important for the drain of the duct type air conditioner. • Minimum thickness of the thermal insulator for the connecting pipe shall be 5 mm. •...
  • Page 12: Indoor Unit Drain Piping

    INSTALLATION OF INDOOR Indoor Unit Drain Piping Drain test - Drain piping must have down-slope (1/50 to - Connect the main drain pipe to the exterior 1/100): be sure not to provide up-and-down and leave it provisionally until the test comes slope to prevent reversal flow.
  • Page 13: Thermal Insulator

    INSTALLATION OF INDOOR Thermal insulator Use the thermal insulator material for the refrigerant piping which has an excellent heat-resistance (over 120 °C). If this air conditioner is operated for a long time in high humid atmosphere (dew point temperature: more than 23 °C), water drops are liable to fall.
  • Page 14: Remote Controller Installation

    REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION Please fix tightly using provided screw Can set up wired remote controller cable after placing remote controller setup board into three directions. on the place where you like to setup. - Set up direction: the surface of wall recla- - Please set it up not to bend because poor mation, upper, right setup could take place if setup board...
  • Page 15: Group Control

    REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote CAUTION controller using connection wiring. When installing the wired remote controller, do not bury it in the wall. (It can cause dam- Please check if connector age in the temperature sensor.) is normally connected.
  • Page 16: Two Remote Controller

    REMOTE CONTROLLER INSTALLATION Two remote controller - For ceiling type cassette and duct product group, change the switch setting When installing more than 2 wired remote of the indoor PCB. controllers to one air conditioner, please con- nect as the right picture. - No.
  • Page 17: Optional Operation

    OPTIONAL OPERATION OPTIONAL OPERATION Installer Setting -Test Run Mode After installing the product, you must run a Test Run mode. For details related to this operation, refer to the product manual. OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode.
  • Page 18: Installer Setting - Setting Address Of Central Control

    OPTIONAL OPERATION Installer Setting - Setting Address of Central Control It's the function to use for connecting central control. Please refer to central controller manual for the details OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode.
  • Page 19: Installer Setting -Thermistor

    OPTIONAL OPERATION Installer Setting -Thermistor This is the function to select the temperature sensor to judge the room temperature. OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode. - After entering into the installer setting mode, select the thermistor sensor setting code value by pressing the...
  • Page 20: Installer Setting-Remote Controller Master/Slave Setup

    OPTIONAL OPERATION Installer Setting-Remote Controller Master/Slave Setup It is a function for settings in group control, or 2-remote controller control. OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode.
  • Page 21: Installer Setting-Celsius / Fahrenheit Switching

    OPTIONAL OPERATION Installer Setting-Celsius / Fahrenheit Switching This function is used for switching the display between Celsius and Fahrenheit. (Optimized only for U.S.A) OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode.
  • Page 22: Installer Setting -E.s.p

    OPTIONAL OPERATION Installer Setting -E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. - If you set ESP incorrectly, the air conditioner may malfunction. - This setting must be carried out by a certificated-technician.
  • Page 23: Installer Setting - Static Pressure Step Setting

    OPTIONAL OPERATION Installer Setting - Static Pressure Step Setting This function is applied to only duct type. Setting this in other cases will cause malfunction. This function is only available on some products. This is the function that static pressure of the product is divided in 11 steps for setting. OPER When pressing the button and...
  • Page 24 2(20) 2.5(25) 3(29) 4(39) 6(59) 8(78) 10(98) 12(118) 13(127) 14(137) 15(147) Model Step CMM Setting Value 32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11 HIGH 16.5 ABNQ18GM1A0 14.5 Static Pressure[mmAq(Pa)] 2(20) 2.5(25) 3(29) 4(39) 6(59) 8(78) 10(98) 12(118) 13(127) 14(137) 15(147) Model Step CMM...
  • Page 25: Dip Switch Setting

    DIP SWITCH SETTING DIP SWITCH SETTING Indoor PCB Indoor PCB Indoor PCB Function Description Setting Off Setting On Default Selection of Master or Group Control Master Slave Slave Wired/Wireless remote Dry Contact Selection of Dry Contact controller Auto Mode Mode Selection of Manual or Auto operation Mode Continuous operation...

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