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LG B120AH Owner's Manual
LG B120AH Owner's Manual

LG B120AH Owner's Manual

Large duct-type air conditioner

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LG Large Duct-Type

Air Conditioner

OWNER'S MANUAL
IMPORTANT
Please read through this manual. It contains valuable
information about your air conditioner. This manual may
help save time and money by explaining proper product
maintenance and preventing improper use.
PRECAUTIONS
Pay close attention to precautions in order to prevent
potential hazards and damage from misuse or improper
installation. LG is not responsible for any damages caused
by misuse of the product.
Prior to installation, this air-conditioning
unit must be submitted for approval by the
utility service which provides electricity
(EN 61000-3 Norm.)
LG

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Table of Contents
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Summary of Contents for LG B120AH

  • Page 1: Air Conditioner

    PRECAUTIONS Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation. LG is not responsible for any damages caused by misuse of the product. Prior to installation, this air-conditioning unit must be submitted for approval by the utility service which provides electricity (EN 61000-3 Norm.)
  • Page 2 Large Duct Type Air Conditioner Owner’s Manual TABLE OF CONTENTS Safety Precautions...3 Operating Instructions...8 Care and Maintenance ...17 Before you call for service ...19 2 Large Duct-Type Air Conditioner FOR YOUR RECORDS Write the model and serial numbers here: Model # Serial # You can find them on a label on the side of each unit.
  • Page 3: Safety Precautions

    Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. I Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
  • Page 4 Safety Precautions Do not modify or extend the power cable. • There is risk of fire or electric shock. For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury.
  • Page 5 Do not touch(operate) the product with wet hands. • There is risk of fire or electrical shock. Do not store or use flammable gas or combustibles near the prodcut. • There is risk of fire or failure of product. G a s o l i n If strange sounds, or small or smoke comes from product.
  • Page 6 Safety Precautions Turn the main power off when cleaning or maintaining the product. • There is risk of electric shock. I Installation Always check for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of product. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.
  • Page 7 Do not block the inlet or outlet of air flow. • It may cause product failure. Do not step on or put anyting on the product. (outdoor units) • There is risk of personal injury and failure of product. Do not drink the water drained from the product.
  • Page 8: Operating Instructions

    Operating Instructions Operating Instructions Name and Function of Remote Controller 1. Operation display Displays the operation conditions. 2. On/Off Button Operation starts when this button is pressed, and stops when the button is pressed again. 3. Set Temperature Button Used to set the temperature when the desired temperature is obtained.
  • Page 9 Set the Current Time and a day of the Week Press the ' ' button. Hour Each time the button is pressed, the number is changed from You can set the number of the current hour. Hour Press the ' ' button.
  • Page 10: Weekly Programming

    Operating Instructions Weekly Programming Press the Program button. The remote controller is displayed like a picture. Then ' Program Week Press the ' ' button. Week Press button repeatedly until desired mode appears. For example, if you want Thu, press Select the time you want.
  • Page 11: Holiday Setting

    Holiday Setting If Tuesday is a holiday in this week, you may set a holiday. Press the Program button. Press the Week button. Select Tuesday. Press the Holiday button. Then the remote controller will display ' The outside rectangular means holiday. ❈...
  • Page 12: Cooling Model

    Operating Instructions Operation Cycle (Heat Pump Model) Cooling Mode Soft Dry Mode Heating Mode Auto Mode Operation Procedure On/Off Button Operation Mode Selection Button Room Temperature Setting Button Indoor Fan Speed Selection Button 12 Large Duct-Type Air Conditioner (Cooling Model) Cooling Mode Soft Dry Mode Auto Mode...
  • Page 13: Operation Mode

    Operation Mode Press the On/Off Button. Select the desired Operation. Press the Operation Mode Selection Button. Each time the button is pressed, the operation mode is shifted as shown in the arrow direction. Operation Display AUTO SWING OPERATION SET TEMP Room Temp Time Timer...
  • Page 14: Soft Dry Operation Mode

    Operating Instructions For Heat Pump Models only If the outdoor temperature is too low during the heating operation, this air-conditioner is set to the defrosting operation and the remote controller indicates ‘Defrost’. Soft Dry Operation Mode Soft Dry Operation is used to remove the humidity softly without overcooling the room specially when the humidity is already low.
  • Page 15: Fan Operation

    FAN Operation Press the On/Off Button. Press FAN Operation Button. Each time Indoor Fan Speed button is pressed, the fan speed mode is shifted as shown below. • Fan speed is Hi • Fan speed is Low • Fan speed is Medium Self-diagnosis Function This unit has an inbuilt error diagnosis capability.
  • Page 16: Child Lock Function

    Operating Instructions Child Lock Function This is the Function that any children cannot used to the air-conditioner. Operation procedure To set the Child-Lock Function Press the Timer button and Minute Set button for three seconds. Then the operation mode shift to child lock mode and it is displayed display.
  • Page 17: Care And Maintenance

    Care and Maintenance Caution: Before performing any maintenance, turn off the main power to the system. Indoor Unit Grille, Case, and Remote Control ❏ Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.
  • Page 18: Helpful Information

    Care and maintenance When the air conditioner is not going to be used for a long time. When air conditioner is not going to be used for a long time. Operate the air conditioner on Air circulation mode for 2 to 3 hours. •...
  • Page 19: Before You Call For Service

    Before you call for service... Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service... If the malfunction persist, please contact your dealer. Case The air conditioner does not operate. The room has a peculiar odor. It seems that condensation is leaking from the air Conditioner.
  • Page 20 Memo 20 Large Duct-Type Air Conditioner...
  • Page 21 P/No.: 3828A20843B...

Table of Contents