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LG LV-B2461CL Manual
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LG LV-B2461CL Manual

LG LV-B2461CL Manual

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See also: Service Manual

Room Air Conditioner

(Convertible Type)
SVC MANUAL(Exploded View)
MODEL : LV-B2461CL/ B2461HL
LV-B2464CL/ B2464HL
LV-B2464BL
LV-B1861CL/ B1861HL
LV-B1864CL/ B1864HL
LV-H246BLA0
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

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Summary of Contents for LG LV-B2461CL

  • Page 1: Room Air Conditioner

    Internal Use Only http://biz.lgservice.com Room Air Conditioner (Convertible Type) SVC MANUAL(Exploded View) MODEL : LV-B2461CL/ B2461HL LV-B2464CL/ B2464HL LV-B2464BL LV-B1861CL/ B1861HL LV-B1864CL/ B1864HL LV-H246BLA0 CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

  • Page 2: Table Of Contents

    2-way, 3-way Valve.........................46 Cycle Troubleshooting Guide....................52 Electronic Parts Troubleshooting Guide................53 Electronic control device......................57 Schematic Diagram .......................58 Exploded View ........................59 - 2 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Functions

    28°C(22˚C). • The setting temperature, indoor fan speed and desired operation made are automatically set by fuzzy rule. - 3 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Mode

    : 1, 2, 3, 4, 5, 6, 7hr, Off Timer Airflow Direction Control Fan Operation Mode : Fan Operates without cooling. (Cooling model only) Reset - 4 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 5: Product Specifications (Cooling Only)

    Time Delay Safety Function Air Circulation Soft Dry Fan Speed (Indoor) 3 (Hi, Med, Low) Timer 24Hrs Self-Diagnosis Auto-Restart - 5 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Product Specifications (Cooling & Heating)

    Time Delay Safety Function Air Circulation Soft Dry Fan Speed (Indoor) 3 (Hi, Med, Low) Timer 24Hrs Self-Diagnosis Auto-Restart - 6 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Dimensions

    Dimensions (1) Indoor Unit 1 2 0 0 m m 205mm 63mm 38mm 175mm (Installation Plate) 250mm (Rear Side) - 7 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 8: Mode

    (2) Outdoor Unit Gas side 3-way valve Liquid side 3-way valve MODEL LV-B1861CL/HL, LV-B1864CL/HL, LV-B2461CL/HL, LV-B2464HL, LV-B2464BL, LV-B2464CL, LV-H246BLA0 74.5 - 8 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 9: Refrigeration Cycle Diagram

    When installed at a distance of 15m, 300g of refrigerant should be added. (15-5) x 30g = 300g - 9 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 When installed at a distance of 15m, 300g of refrigerant should be added. (15-5) x 30g = 300g - 10 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Wiring Diagram

    (2) Outdoor Unit 2. LV-H246BLA0 1. LV-B1861CL/2461CL GN/YL BR(OR) MOTOR COMP. CAPACITOR TERMINAL BLOCK TO INDOOR UNIT CONVERTIBLE(COOLING ONLY) (OUTDOOR) - 11 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 5. LV-B2464HL/2464BL(Australia only) 4. LV-B1864HL/2464HL CAPACITOR COMP. OR(BR) MOTOR REVERSING GN/YL VALVE GN/YL TERMINAL BLOCK TO INDOOR UNIT CONVERTIBLE(HEAT PUMP) (OUTDOOR) - 12 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 6. LV-B1864CL/LV-B2464CL - 13 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Operation Details

    MODE 3 MODE 4 Heating Heating Heating Heating MODE 5 135° MODE 6 MODE 7 MODE 8 MODE 9 CLOSE - 14 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 • The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours. Setting Temp. +3°C (Compressor OFF) Setting Temp. (Compressor ON) Indoor Fan Low. Low. Low. Low. Low. Low. Compressor - 15 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 30°C 30°C Intake-Air temp Setting Temp. +0.5°C (Compressor OFF) Setting Temp.-0.5°C (Compressor ON) Indoor Fan Fuzzy Speed Compressor - 16 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 • 1/f rhythm louver operation : In Auto operation mode, when pressing the vertical air direction control button, lou- ver moves as following cycle. MODE0 Start MODE1 MODE2 MODE3 MODE4 MODE5 MODE6 MODE9 (CLOSED) - 17 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 : LOW : COMP ON : COMP OFF GRAPH of Natural wind by the CHAOS logis (During Heating operation) - 18 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Heating Mode Operation

    PIPING 1min TEMPERATURE 28°C (22˚C) 26°C (20˚C) INDOOR FAN COMPRESSOR : Selected Fan : Low Fan : Fan Stop - 19 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: Deice Control

    10min. 7min. 10min. 2min.58sec. Cooling Within 7min. Cooling COMPRESSOR OUTDOOR FAN Selected Selected INDOOR FAN Low Fan Low Fan - 20 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 - State of Operation ON/OFF - Operation Mode/Setting Temp/Selected airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer(unit of hour) - 21 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 22: Display Function

    2. Thermistor Cut Off or Short Cut Off/Short : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF) - 22 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Installation

    • If 18K or 24K Model is installed at a distance of 15m, 240g of refriger- ant should be added ............(15-7)x30g - 23 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 24: Indoor Unit Installation

    • Drill the piping hole on the wall slightly tilted to the outdoor side using a ø70 hole-core drill. WALL Indoor Outdoor 5~7mm - 24 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Installation Plates. Then the unit will be declined to the bottomside so as to drain well. Suspension Adjust a level bolt Installation plate Upper slot - 25 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 Side of view • The unit must be declined to the bottomside of the unit when finished installation. Ceiling - 26 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 • Fit the projection hooks of the side plates to the 'Side Panel' and the 'Front Panel' by lifting it. • Fasten the screws. - 27 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 'Install Plate' to the inside or outside accord- 1 2 3 ing to the installation circumstances. - 28 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 • Fit the projection hooks of the side plates to the 'Side Panel' and the 'Front Panel' by lifting it. • Fasten the screws. - 29 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 • Assemble the 'Side Plates(R,L)' with 2 screws on both Wall left and right side. Floor mount bracket Install plate Piping hole - 30 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Connecting Pipes To The Indoor Unit

    I If flare is noted to be defective, cut off the flared Inclined Surface Cracked Uneven section and do flaring work again. damaged thickness Even length all round - 31 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 • Hang the drain hose on the hose hanger and fix it to the hole of cabinet bottom with a screw. BOTTOM Hose Hanger Drain Hose - 32 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 • The drain hose can be connected to not only right side but also left side of the unit. REAR Drain Hose BOTTOM - 33 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 34: Connecting Pipes To The Outdoor Unit

    • Spray one or two glasses of water upon the evaporator. • Ensure that water flows drain hose of indoor unit without any leakage. - 34 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Connecting Cables Between Indoor Unit And Outdoor Unit

    • 2.0mm (18K:for the Middle East) AREA • 1.5mm (18K:for the other area) • 1.5mm (18K:for the other area) 0.75mm - 35 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 10) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors. - 36 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 4. Fix the pipings onto the wall by saddle or equivalent. - 37 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 Liquid side Indoor unit Closed Outdoor unit 2-way valve/ 3-way valve Gas side 3-way valve Closed Vaccum pump OPEN CLOSE - 38 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 39: Test Running

    Main PCB Assembly to the ' CEILING' state. The initial state of the slide switch is set for the bottom installation. - 39 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 40: Operation

    ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature. RESET BUTTON Used prior to resetting time or after replacing batteries. - 40 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Remote Controller

    ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature. RESET BUTTON Used prior to resetting time or after replacing batteries. - 41 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 42: Disassembly Of The Parts (Indoor Unit)

    • Remove the lower air-guide toward “arrow mark” by turning upwards as shown in figure. Barrier Air guide Lower Air guide - 42 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 • Remove 2 screws securing the control box and pick out the control box carefully. - 43 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 • If necessar y, disconnect the display PCB connector from PCB assembly. • Remove 2 screws of PCB assembly. Display Cover - 44 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 • Remove the evaporator assembly by sliding toward arrow mark. (As shown in figure) Side Cabinet EVA. Barrier-R - 45 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 46: 2-Way, 3-Way Valve

    Open Gas charging (with charging (Servicing) cylinder) Pressure check Open Open " (Servicing) Gas releasing Open Open " (Servicing) - 46 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 47: Pumping Down

    – Open the low-pressure valve on the charge set slightly to air purge from the charge hose. (5) Set the liquid side valve to the closed position. - 47 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 – Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg/cm - 48 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 – Discharge the refrigerant gradually; if it is discharged too suddenly, the refrigeration oil will also be discharged. - 49 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 50 (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dir ty or depleted, replenish as needed. - 50 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 51: Gas Charging

    1 minute and then repeat the procedure (pumping down-pin). - 51 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 52: Cycle Troubleshooting Guide

    2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 52 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 53: Electronic Parts Troubleshooting Guide

    Is the PIN 29 of Exchange IC01A Micom DC5V? Is the PIN 55,64 of Check the 5V P.C.B Micom DC5V? pattern Exchange Micom - 53 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 Is IC02M operated Exchange IC02M normally? Is the each S.S.R Exchange S.S.R any problem? Check the fan motor and connector. (CN-FAN) - 54 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 Is the PIN 8 of CN-DISP DC5V pattern DC5V? Is the connection of Connect CN-DISP exactly CN-DISP all right? Exchange receiver ass'y - 55 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 56 : The unit does not operate by forced operation switch. Is the F/OP key Exchange F/OP key any problem? Check P.C.B pattern check - 56 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 57: Electronic Control Device

    (1) MAIN P.C.B ASM (LV-B1861HL/B2461HL P/No.: 6871A20042A) (LV-B1864HL/B2464HL P/No.: 6871A20042K) (LV-B1861CL/B2461CL P/No.: 6871A20042D) (LV-B1864CL/B2464CL P/No.: 6871A20042D) (2) DISPLAY P.C.B ASM (P/No.: 6871AQ3263A) - 57 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 58: Schematic Diagram

    Schematic Diagram - 58 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 59: Exploded View

    Exploded View 1. Indoor Unit • Models: LVNB2464/1864/1861HL, LVNB2464/2461/1864/1861CL - 59 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 60 • Model: LVUH246BLA0 - 60 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 Classification Description Part Number Location Number Remark Compressor 5416AR1411H 554160 LVUB2464BL Heating Only Barrier Side LVUB2464HL Harness,Multi 4933AR3501Q W6631 - 61 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 62 • Model: LVUH246BLA0 - 62 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 • Model: LVUB1861HL - 63 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 • Model: LVUB1861CL - 64 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 • Model: LVUB2461CL - 65 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 66 Classification Description Part Number Location Number Remark Compressor 5416A20016A 554160 LVUB1864BL Heating Only Barrier Side LVUB1864HL Harness,Multi 4933AR3501Q W6631 - 66 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 Model Classification Description Part Number Location Number Remark Compressor 5416A20016A 554160 LVUB1864CL Cooling Only Barrier Side Harness,Multi 4933AR3501Q W6631 - 67 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 68 AUGUST, 2009 P/NO : 3828A30027H...

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