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P/NO : MFL67939906

INSTALLATION MANUAL

Ceiling Concealed Duct

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.

www.lg.com

Copyright © 2014 - 2018 LG Electronics Inc. All Rights Reserved.

ENGLISH

Summary of Contents for AB-Q24GM1A2

Page 1: ...pletely 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 www lg com Copyright 2014 2018 LG Electronics Inc All Rights Reserved 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: ...ofessional installation agency Otherwise it may cause a fire electrical shock explosion or injury Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not at tached securely it could result in a fire or electric shock due to dust water etc Always install a...

Page 4: ...heavy object on the power cord Otherwise it may cause a fire or electrical shock When the product is submerged into water always contact the service center Otherwise it may cause a fire or electrical shock Take care so that children may not step on the outdoor unit Otherwise children may be seriously injured due to falling down CAUTION Installation Install the drain hose to ensure that drain can b...

Page 5: ...t 12 Heat insulation 13 REMOTE CONTROLLER INSTALLATION 14 Group Control 16 OPTIONAL OPERATION 16 Installer Setting Test Run Mode 17 Installer Setting Setting Address of Central Control 18 Installer Setting Thermistor 19 Installer Setting Remote Controller Master Slave Setup 20 Installer Setting Celsius Fahrenheit Switching 21 Installer Setting E S P 22 Installer Setting Static Pressure Step Settin...

Page 6: ...t vents Air outlet vents Name Quantity Shape for gas pipe for liquid pipe Insulation for fitting 1 set 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 Features INTRODUCTION ...

Page 7: ...mension and hanging bolt location Install the unit above the ceiling correctly Position of suspension Bolt Apply a joint canvas between the unit and duct to absorb unnecessary vibration Apply a filter Accessory at air return hole CASE 1 Selection of the best location Install the air conditioner in the location that satisfies the following conditions The place shall easily bear a load exceeding fou...

Page 8: ...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 9: ...caused 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 insulation 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 10: ...ecifications Precautions when laying power wiring Use round pressure terminals for connec tions to the power terminal block When none are available follow the in structions below Do not connect wiring of different thick nesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the fig ure below WARNING Mak...

Page 11: ...er upon the evaporator Ensure that water flows drain hose of in door unit without any leakage 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 connection on the indoor unit...

Page 12: ...onditioner has been tested ac cording to the KS Standard Conditions with Mist and confirmed that there is not any default However if it is operated for a long time in high humid atmosphere dew point temperature more than 23 C water drops are liable to fall In this case add heat insulation material according to the following procedure Heat insulation material to be prepared Adiabatic glass wool wit...

Page 13: ...oller board fit to the reclamation box if there is a recla mation box 2 Can set up Wired remote controller cable into three directions Setup 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 Reclamation to the surface of the wall ...

Page 14: ...r part Please connect not to make a gap at the remote controller and setup board s upper and lower right and left part When separating remote controller from setup board as the picture below after in serting into the lower separating hole using screw driver and then spinning clockwise remote controller is separated There are two separating holes Please in dividually separate one at a time Please b...

Page 15: ...lling more than 2 wired remote controllers to one air conditioner please connect 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 the product manual for more detail ...

Page 16: ...re 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 state If any button is inputted during the test run mode the test run mode will be forced to be relreased 4 OPER MODE OPER MODE OPER MODE OPER MODE What is ...

Page 17: ...umber 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 MODE If you connect the indoor unit to the cen tral controller you should set the net work address of the indoor unit so that the central controller could recognize i...

Page 18: ...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 has been completed the setting mode will be released If there isn t any button input for more than 25 seconds th...

Page 19: ... 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 unit operates based on master remote controller at group control Master is set when delivering from the warehouse Slave Setup all remote...

Page 20: ...e 12 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 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...

Page 21: ...ly 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 5 OPER MODE OPER MODE FAN SPEED FAN SPEED OPER MODE Precaution shall be taken not to alter the E S P value corresponded to each air flow section E S P value can be varied according to the products...

Page 22: ...perature up s down t button 2 When pressing button currently established static 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 OPER MODE Code value OPE...

Page 23: ... 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 9 88 10 98 12 118 14 137 15 147 16 157 18 177 Setting Value 32 01 32 02 32 03 32 04 32 05 32 06 32 07 32 08 32 09 32 10 32 11 ABNQ48GM3A2 HIGH 40 88 90 93 96 99 102 108 113 115 117 121 MID 34 80 87 88 91 94 97 103 109...

Page 24: ...Limit E S P mmAq Pa ABNQ18GM1A2 8 78 2 20 10 98 ABNQ24GM1A2 8 78 2 20 10 98 ABNQ36GM2A2 10 98 4 39 10 98 ABNQ48GM3A2 6 59 5 49 14 137 ABNQ54GM3A2 6 59 4 39 14 137 Model Maximum Value ABNQ18GM1A2 106 ABNQ24GM1A2 115 ABNQ36GM2A2 119 ABNQ48GM3A2 90 ABNQ54GM3A2 98 Model Step CMM Static Pressure mmAq Pa 4 40 5 50 6 59 7 69 8 78 9 88 10 98 11 108 12 118 13 127 14 137 Setting Value ABNQ54GM3A2 HIGH 50 94...

Page 25: ...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 DIP SWITCH SETTING ...

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