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P/NO : MFL61971227

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

ESP

AÑOL

POR

TUGUESE

Summary of Contents for ABNQ18GHLA0

Page 1: ...al 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 ESPAÑOL PORTUGUESE ...

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: ...e or electrical shock For installation of the product always contact the service center or a professional 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 tac...

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: ...ping 11 Heat insulation 12 REMOTE CONTROLLER INSTALLATION 13 Group Control 15 Installer Setting Test Run Mode 15 OPTIONAL OPERATION 16 Installer Setting Setting Address of Central Control 17 Installer Setting Thermistor 18 Installer Setting Remote Controller Master Slave Setup 19 Installer Setting Celsius Fahrenheit Switching 20 Installer Setting E S P 22 DIP SWITCH SETTING 22 SELF DIAGNOSIS FUNC ...

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

Page 7: ...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 Confirm the positional relationship between the unit and suspension bolts Installation the ceiling opening to clean the filter or service under the product INSTALLATION OF INDOOR Top view Unit mm i...

Page 8: ... 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 Flat washer for M10 accessory Flat washer for M10 accessory Hanging bolt W3 8 or M10 Nut...

Page 9: ...caused by the blocking of in take air filter Ceiling Ceiling 1 3mm Drainage hole Drain Pump unuse Drain Pump use Drainage 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 5mm The unit must be horizontal or declined to the drain hose connected when finished installation C...

Page 10: ... the indoor unit and no more than 300mm from the unit Heat insulation 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 complete connect the flexi ble drain hose to the drain port on the indoo...

Page 11: ...nfirmed 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 with thickness 10 to 20mm Stick glass wool on all air conditioners that are located in ...

Page 12: ...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 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 Reclamat...

Page 13: ...ation 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 after 1 minutes ...

Page 14: ...ling 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 G...

Page 15: ...n in the left figure 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 conver...

Page 16: ...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 17: ...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 18: ...t 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 TEMP FAN SPEED OPER MODE Remote controller Function Master Indoor uni...

Page 19: ...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 20: ...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 21: ...atic Pressure mmAq Pa 4 39 6 59 8 78 10 98 100 20 8 105 23 2 19 5 110 26 21 5 115 23 5 19 1 120 26 3 21 6 125 24 19 9 130 27 22 7 135 25 9 ABNQ24GGLA0 Setting Value Static Pressure mmAq Pa 2 5 25 4 39 6 59 8 78 10 98 80 14 8 90 19 14 4 100 23 3 19 7 13 9 110 26 9 24 3 19 8 14 1 120 31 2 28 2 25 2 20 1 14 4 130 34 9 32 4 29 5 26 1 20 5 ABNQ18GHLA0 ABNQ21GHLA0 Setting Value Static Pressure mmAq Pa 2...

Page 22: ... Green Indoor status 01 Indoor Room sensor error 0 1time OFF 02 Indoor in pipe sensor error 0 2times OFF 03 Remote controller error 0 3times OFF 04 Drain pump error 0 4times OFF 05 Communication error indoor and outdoor 0 5times OFF 06 Indoor out pipe sensor error 0 6times OFF 09 EEPROM error indoor 0 9times OFF 10 BLDC motor fan lock indoor 1time 0 OFF Indoor PCB Indoor PCB Indoor PCB Function De...

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