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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.

ENGLISH

www.lg.com

 

P/NO: MFL67939937

 

Rev.0

4

_

0909

2019

Copyright © 2019 LG Electronics Inc. All Rights Reserved

Summary of Contents for ABNW18GM1T2

Page 1: ...ing 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 ENGLISH www lg com P NO MFL67939937 Rev 04_09092019 Copyright 2019 LG Electronics Inc All Rights Reserved ...

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: ...it are not attached securely it could result in a fire or electric shock due to dust water etc Always install an earth leakage circuit breaker and a dedicated switching board No installation may cause a fire and electrical shock Do not keep or use flammable gases or combustibles near the air conditioner Otherwise it may cause a fire or the failure of product Ensure that an installation frame of th...

Page 4: ...put anything on it It may cause an injury through dropping of the unit or falling down 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...

Page 5: ...Piping 10 Drain test 11 Thermal insulator 12 Wiring Connection 13 INSTALLATION INSTRUCTION 16 Remote controller installation 17 Group control 18 Installer Setting Group Setting 19 Installer Setting Thermistor 20 Installer Setting Static Pressure Step Setting 21 Installer Setting Static Pressure Setting 22 Installer Setting E S P 23 Installer Setting Test Run Mode 27 Installer Setting Dry Contact M...

Page 6: ...6 INTRODUCTION ENGLISH Features INTRODUCTION Remote Controller Air inlet vents Air outlet vents ...

Page 7: ...Thermal insulator the ceiling opening to clean the filter or service under the product Installation of Unit 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 INSTALLATION OF INDOOR Top view Unit mm Front view Unit mm Front Inspection hole 600 x 60...

Page 8: ...or 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 CASE 2 M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 M10 Nut M10 SP washer...

Page 9: ...essure mmAq Ex External Pressure 10 mmAq A 70 mm B 40 mm C 20 mm A Make sure to be closed Unit Drainage pipe Local supply Thermal insulator Local supply Always lay the drain withdownw ard inclination 1 100 to 1 50 Prevent any upward flow or reverse flow in any part 10 mm or thicker formed thermal insulator shall always be provided for the drain pipe Install the P Trap or U Trap to prevent a water ...

Page 10: ...the drain piping Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit Thermal insulator material Polyethylene foam with thickness more than 8 mm Drain test Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage When the test is c...

Page 11: ...nsulation material Standard mm residential Insulation material standard mm unfavorable conditions If installed in an air conditioned place CASE 1 ex bedroom living room etc If installed in a non air conditioned place CASE 2 ex hallway outdoors etc Refrigerant piping dimensions mm EPDM EPDM EPDM EPDM Gas piping 6 35 9 52 12 7 15 88 19 05 22 22 25 40 28 58 31 75 38 1 44 45 19 19 19 19 19 19 19 19 19...

Page 12: ...nal Power wiring CAUTION The connecting cable connected to the indoor and outdoor unit should be com plied with the following specifications Rubber insulation type H05RN F ap proved by HAR or SAA If the supply cable is damaged it must be replaced by a special cable or assem bly available from the manufacturer of its service agent When the connection line between the indoor unit and out dooor unit ...

Page 13: ...mote 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 Reclamation to the surface o...

Page 14: ...the indoor unit s C BOX and the housing type of the exten sion cable When connecting Terminal Blocks of the indoor C BOX and the wired remote con troller with the extension cable refer to the steps below Remove the screw on the cable which is fastened to the wired remote con troller s Terminal Block by loosening with a screw driver Remove the housing of the provided 32 ft extension cable with a cu...

Page 15: ...e terminal screws A screwdriver with a small head will strip the head and make proper tightening impossible Over tightening the terminal screws may break wires and terminal block structure 5 Please use an extension cable if the distance between the wired remote controller and the indoor unit is longer than 32 ft 10 m CAUTION Installation work must be performed in accordance with the national wirin...

Page 16: ...on at an average temperature Do not install the remote controller where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Uncontrolled areas such as an outside wall behind the remote controller This remote controller is equipped with LCD display For proper display of the remote controll...

Page 17: ...en installing 2 remote controllers to one indoor unit with event communica tion function set the master slave of the remote controller Refer to remote con troller master slave selection When controlling the group some func tions excluding basic operation setting fan level Min Mid Max remote controller lock setting and time setting may be limited 2 When installing more than 2 wired remote controlle...

Page 18: ... button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 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 controllers e...

Page 19: ... exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected Temperature sensor selection Function 01 Remote controller Operation in remote controller temperature sensor 02 Indoor unit Operation in indoor unit temperature sensor 03 2TH Cooling Operation of higher te...

Page 20: ... automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 If pressing button repeatedly it moves to static pressure selection menu as picture below 2 Select static pressure by pressing button 00 use static pressure code 06 set value 01 11 static pressure step code 32 set value 3 Press button to...

Page 21: ... 3 Press button to save 4 5 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected If pressing button repeatedly it moves to static pressure selection menu as picture below 2 Static Pressure Setting Table Pressure selection Function Zone st...

Page 22: ...03 medium 04 high 05 power 3 Move to ESP value setting by pressing button It is 000 when delivering from the warehouse 4 Press button to setup ESP value It is possible to setup ESP value from 1 to 255 and 1 is the smallest and 255 is the biggest 5 Function code ESP code ESP value If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it en...

Page 23: ... the test run Select operation temperature up down wind flow control wind direction start stop button 4 If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setup mode Please press more than 3 seconds for sure Please cancel the right and left of wind direction for RAC product 1 Setup figure 01 blinks at the lower part...

Page 24: ...8 10 98 11 108 12 118 Setting Value 32 01 32 02 32 03 32 04 32 05 32 06 32 07 32 08 32 09 HIGH 40 83 89 92 94 98 100 102 105 108 MID 34 78 82 84 89 94 96 98 101 104 LOW 28 74 76 79 82 89 92 94 96 99 Step CMM Static Pressure mmAq Pa 2 20 2 5 25 3 29 4 39 5 49 6 59 7 69 8 78 9 88 10 98 Setting Value 32 01 32 02 32 03 32 04 32 05 32 06 32 07 32 08 32 09 32 10 HIGH 32 66 69 71 76 80 84 86 89 94 98 MID...

Page 25: ...0 10 98 2 20 2 20 6 59 15 147 15 147 6 59 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 HIGH 16 5 85 87 90 94 103 110 118 125 128 131 134 MID 14 5 76 77 85 91 97 107 114 121 125 128 131 LOW 13 73 74 77 88 93 103 111 117 120 125 128 HIGH 18 90 92 95 99 108 115 122 129 132 135 138 MID 16 5 85 87 90 94 103 111 118 125 128 131 134 LOW ...

Page 26: ...N INSTRUCTION ENGLISH NOTE If it is zero static pressure please set value below Maximum value Maximum Value 98 98 98 98 115 72 115 60k 54k 1Ф 60k 54k 3Ф 48k 1Ф 48k 3Ф 42k 1Ф 36k 1Ф 30k 1Ф 18k 1Ф 24k 1Ф Capacity Phase ...

Page 27: ...s into user setup mode Please press more than 3 seconds for sure 1 If pressing button repeatedly it moves to remote controller dry contact mode setup menu as picture below 2 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 NOTE What...

Page 28: ... Setting 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 Re moval Working Off ...

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