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P/NO : MFL67939901

www.lg.com

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

ENGLISH

Summary of Contents for ABNQ18GM1A0

Page 1: ...tion 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 ENGLISH ...

Page 2: ...condi tioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You c...

Page 3: ...o not dis assemble or repair the product There is risk of fire or electric shock 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 Use the correctly rated breaker or fuse There...

Page 4: ...t grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure When the product is soaked flooded or submerged contact an Authorized Service Center There is risk of fire or electric shock Be cautious that water could not enter the product There is risk of fire electric shock or product dama...

Page 5: ... solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two ...

Page 6: ...ain test 13 Thermal insulator 14 REMOTE CONTROLLER INSTALLATION 15 Group control 16 Two remote controller 17 OPTIONAL OPERATION 17 Installer Setting Test Run Mode 18 Installer Setting Setting Address of Central Control 19 Installer Setting Thermistor 20 Installer Setting Remote Controller Master Slave Setup 21 Installer Setting Celsius Fahrenheit Switching 22 Installer Setting E S P 23 Installer S...

Page 7: ...r inlet vents Air outlet vents Name Quantity Shape for gas pipe for liquid pipe Clamp metal 2 EA Insulation for fitting 1 set Drain hose 1 EA Clamp Tie Wrap 8 EA Washer for hanging bracket 4 EA Other Owner s manual Installation manual Screws for fixing panels are attached to decoration panel ...

Page 8: ... C D E F G H I J Dimension Capacity kW Unit mm 5 933 4 971 6 619 2 700 30 270 15 2 858 201 4 900 7 933 4 971 6 619 2 700 30 270 15 2 858 201 4 900 12 5 1283 4 1321 6 619 2 700 30 270 15 2 1208 201 4 1250 13 4 1283 4 1321 6 619 2 700 30 360 15 2 1208 291 4 1250 Selection of the best location Install the air conditioner in the location that satisfies the following conditions The place shall easily b...

Page 9: ...e hole for set anchor on the face of ceiling Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling Mount the suspension bolts to the set an chor firmly Secure the installation plates onto the sus pension bolts adjust level roughly using nuts washers and spring washers M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 M10 Nut M10 SP washe...

Page 10: ...lation If the supply wiring is damaged it must be replaced by a special wiring or assem bly available from the manufacturer of its service agent CAUTION The Power cord connected to the unit should be selected according to the fol lowing specifications Precautions when laying power wiring Use round pressure terminals for connec tions to the power terminal block When none are available follow the in...

Page 11: ...by the blocking of in take air filter Ceiling Ceiling 1 3 mm Drain hole Drain pump unuse Drain pump use Drain hole 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 The unit must be horizontal or declined to the drain hose connected when finished installation CAUTI...

Page 12: ...clamp Indoor unit Feed water Flexible drain hose accessory Main drain pipe Glue the joint Air outlet vents Air filters Indoor Unit Drain Piping 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 indoor unit The outside diameter of the drain conn...

Page 13: ...igh humid atmosphere dew point temperature more than 23 C water drops are liable to fall In this case add thermal insulator material according to the following procedure Thermal insulation material to be pre pared Adiabatic glass wool with thick ness 10 to 20 mm Stick glass wool on all air conditioners that are located in ceiling atmosphere Indoor unit Thermal insulator accessory Fastening band ac...

Page 14: ...ends Please set up remote controller board fit to the reclamation box if there is a recla mation box 2 Can set up wired remote controller cable into three directions Set up direction the surface of wall recla mation upper right If setting up remote controller cable into upper and right side please set up after removing remote controller cable guide groove Remove guide groove with long nose Reclama...

Page 15: ... event communication indoor unit set the unit as slave Check for event communication through the product manual 2 When controlling multiple indoor units with event communication function with one remote controller you must change the master slave setting from the indoor unit Indoor units the master slave configuration of the product after completion of indoor unit power OFF and then ON the power a...

Page 16: ...ed Two remote controller When installing more than 2 wired remote controllers to one air conditioner please con nect as the right picture When installing more than 2 units of wired remote controller to one air conditioner set one wired remote controller as master and the others all as slaves as shown in the right picture You cannot control the group as shown in the right for some products Refer to...

Page 17: ...e 2 When pressing the button and button simultaneously for more than 3 seconds after the setting has been completed the setting mode will be released If there isn t any button input for more than 25 seconds the installer setting mode will also be released 3 When approx 18 minutes are elapsed after starting of the test oper mode the system will be stopped automatically and converted to the standby ...

Page 18: ...pleted the setting mode will be released If there isn t any button input for more than 25 seconds the installer setting mode will also be released 4 Set up the group nember and indoor unit with the temperature adjustment buttons For example when setting as Group number 2 Indoor number 3 it will be displayed as shown in the left figure 2 OPER MODE OPER MODE TEMP Group number Indoor unit number OPER...

Page 19: ...nto the installer setting mode select the thermistor sensor setting code value by pressing the button Thermistor sensor selection code value 04 1 Select the desired setting value with the temperature up down button 2 When pressing the button currently established thermistor sensor location will be set up 3 When pressing the button and button simultaneously for more than 3 seconds after the setting...

Page 20: ...pressure value will be set up 3 When pressing the button and button simultaneously for more than 3 seconds after the setting has been completed the setting mode will be released If there isn t any button input for more than 25 seconds the installer setting mode will also be released 4 OPER MODE Code value Setting value 00 Slave 01 Master OPER MODE Value Remote controller Function Master Indoor uni...

Page 21: ...ring into the installer setting mode select the ceiling height setting code value by pressing the oper mode button Celsius Fahrenheit setting code value 07 1 Select the desired setting value with the temperature up down button 2 When pressing button currently established celsius Fahrenheit setting value will be set up 3 When pressing the button and button simultaneously for more than 3 seconds aft...

Page 22: ...red air flow rate value with the temperature up down button E S P value range 0 255 E S P value will be indicated at the upper right section of the display window 3 When pressing the button currently established E S P value will be set up 4 When pressing the button and button simultaneously for more than 3 seconds after the setting has been completed the setting mode will be released If there isn ...

Page 23: ...n 3 seconds the system will be entered into the installer setting mode After entering into the installer setting mode select the static pressure step setting code value by pressing the button Static pressure step setting code value 32 1 Select the desired setting value with the temperature up s down t button 2 When pressing button currently established static pressure value will be set up 3 When p...

Page 24: ...29 Model Step CMM 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 Setting Value 32 01 32 02 32 03 32 04 32 05 32 06 32 07 32 08 32 09 32 10 32 11 ABNQ18GM1A0 HIGH 16 5 85 86 88 92 99 106 115 122 126 130 133 MID 14 5 75 77 85 88 93 102 111 118 121 126 129 LOW 13 71 73 76 85 89 98 107 114 117 122 125 Model Step CMM Static Pressure mmAq Pa 5 50 6 59 7 69 8 78...

Page 25: ...ing Off Setting On Default SW3 Group Control Selection of Master or Slave Master Slave Off SW4 Dry Contact Mode Selection of Dry Contact Mode Wired Wireless remote controller Selection of Manual or Auto operation Mode Auto Off SW5 Installation Fan continuous operation Continuous operation Removal Working Off ...

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