LG AS-H0966KA2 Manual
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LG AS-H0966KA2 Manual

LG AS-H0966KA2 Manual

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Room Air Conditioner

SVC MANUAL(Exploded View)
MODEL : AS-H0966KA2 (F09AHJ)
AS-H126RKA2 (F12AHJ)
AS-H186TKA2 (F18AHJ)
AS-H246TKA2 (F24AHJ)
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 AS-H0966KA2

  • Page 1: Room Air Conditioner

    Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : AS-H0966KA2 (F09AHJ) AS-H126RKA2 (F12AHJ) AS-H186TKA2 (F18AHJ) AS-H246TKA2 (F24AHJ) CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

  • Page 2: Table Of Contents

    Components Location ..........................39 Troubleshooting Guide ..........................41 Refrigeration Cycle Diagram ........................41 2-way, 3-way Valve ..........................42 Cycle Parts...............................48 Electronic Parts ............................49 Exploded View...............................56 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Lg Model Name

    Nano Plasma F+4Way+(A/changeove)+A/clean+ Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4 Nano Plasma F+4Way+(A/changeove)+A/clean+ Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry - 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 5: Safety Precautions

    .Do not modify or extend the power cord. securely. • There is risk of fire of electric shock. • No grounding may cause electric shock. - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 • If the base collapses, the air conditioner could fall product. with it, causing property damage, product failure, and personal injury. - 6 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 • There is risk of fire, failure of the product, or electric • There is risk of fire or failure of product. shock. - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 Use two or more people to lift and transport the air conditioner. • To avoid vibration or water leakage. • Avoid personal injury. ˚ - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 • There is risk of personal injury and failure of product. • There are sharp and moving parts that could cause personal injury. - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Dimensions

    This symbol indicates special notes. Indoor Unit Installation plate Model 9K Btu Series 12K Btu Series 18K, 24K Btu Series Dimension 1,090 - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Outdoor Unit

    Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) MODEL 9K Btu Series 12K Btu Series unit - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) MODEL 18K But Series - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 Dimensions Outdoor Unit Gas side Liquid side MODEL 24K Btu Series 74.5 - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Product Specifications

    2 2.5mm x 3, 0.75mm Power Cord 3 x 1.0mm 3 x 1.0mm 3 x 1.5mm 3 x 2.5mm - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: Installation

    More than 10cm More than 10cm • Oil trap should be installed every 5~7 meters. More More than 70cm than 60cm - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: How To Fix Installation Plate

    Right rear piping Distance (mm) CHASSIS (Grade) S6(9k) SR2(12k) ST2(18k/24k) Adhesive Only the desired direction Connecting part Drain hose - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Flaring Work And Connection Of Piping

    Yoke ing and drain hose, especially power Cone cord and connecting cable. Copper pipe Clamp handle Red arrow mark - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: For Right Rear Piping

    Press the lower left and right sides of the unit against the Connecting cable installation plate until the hooks engage into their slots(click- ing sound). Pipe Vinyl tape(narrow) - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: For Left Rear Piping

    • Insert the spacer etc. between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall. Indoor unit Spacer Installation plate - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 • Bend the tubing to the left side of chassis. Tubing holder - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: Connection Of The Pipes-Outdoor

    Ø6.35 Ø9.52 Ø12.7 Ø15.88 Ø19.05 Outdoor unit Gas side piping (Bigger diameter) Liquid side piping (Smaller diameter) Torque wrench - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 22: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Cable Type(B) H07RN-F H07RN-F H07RN-F Grade NORMAL CROSS 30k, 32k 36k, 38k -SECTIONAL AREA 0.75 0.75 Cable Type(B) H07RN-F H07RN-F - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Connect The Cable To The Outdoor Unit

    9) 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. - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 24: Checking The Drainage And Forming The Pipings

    Tip of drain hose Less than dipped in water Trap 50mm gap Water Water Water Waving leakage leakage leakage Ditch - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 25: Air Purging

    Usually, the cylinder is used in a vertical standing position. - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 This completes air purging with a vacuum pump. The air conditioner is now ready to test run. Vacuum pump - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: Test Running

    R-22 35°C (95°F) 4~5kg/cm G(56.8~71.0 P.S.I.G.) R-410A 35°C (95°F) 8.5~9.5kg/cm G(120~135 P.S.I.G.) Power button Open the front panel upward - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 28: Operation

    24°C ≤ Intake Air Temp<26°C ➲ Intake Air Temp-1°C 18°C ≤ Intake Air Temp<24°C ➲ Intake Air Temp-0.5°C ➲ 18°C Intake Air Temp<18°C - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 29: Defrost Control

    • While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off. - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 30: Sleep Timer Operation

    • While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation. - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Test Operation

    "beep-beep-beep-beep-beep-" is made 10 times to indicate that the remote control signal cannot be received. - 31 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 32: Display Function

    • Indoor room temperature (once) thermistor open/short • Indoor Thermistor • Indoor pipe temperature assembly check thermistor open/short. 3sec 3sec 3sec - 32 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Remote Control Operations

    Operation Remote Control Operations The remote control transmits the signals to the system. - 33 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 34: Disassembly

    1. Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 34 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 2EA in the Eva Holder, at the right 1EA). • When repair, do not damage the Caution label. - 35 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 • Remove the left end of the cross-flow fan from the self-aligning bearing. - 36 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Schematic Diagram

    Schematic Diagram Schematic Diagram Electric Control Device • Heat Pump Model(LED TYPE) - 37 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 38: Wiring Diagram

    Schematic Diagram Wiring Diagram Indoor Unit Models: AS-H0966KA2 (F09AHJ), AS-H126RKA2 (F12AHJ), AS-H186TKA2 (F18AHJ), AS-H246TKA2 (F24AHJ) Outdoor Unit Models: AS-H0966KA2 Models: AS-H186TKA2 Models: AS-H246TKA2 (F09AHJ), (F18AHJ) (F24AHJ) AS-H126RKA2 (F12AHJ) OPTION BR(OR) CAPACITOR START COMP. CAPACITOR GN/YL BK(RD) MOTOR RY-S/CAPA T/B3 REVERSING...

  • Page 39: Components Location

    R02L Q04G IC01A TR01F C01L C04D R14L C02A IC01J Q01L IC01D C02D L02D C03D R02D C06D C04J SMPS C03J - 39 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 Schematic Diagram DISPLAY ASSEMBLY – 6871A20575 - 40 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Troubleshooting Guide

    HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 41 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 42: 2-Way, 3-Way Valve

    Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 42 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 43: Pumping Down

    R-22. Thus, the high pressure side gauge of charge set should be used higher pressure gauge of 50kg/cm2 range. - 43 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 44 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 If the vacuum pump oil becomes dirty or depleted, replenish as needed. Use vacuum pump equipped with check value applied to be prevented from flowing backward. - 45 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 46: Gas Charging

    1 minute and then This unit is charged with R-410A. repeat the procedure (pumping down-pin). Pay attention not to charge R-22. - 46 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 P = 3 + 0.0123 x T + 0.8 x T . g) Where, P : Suction Pressure(kg/cm Tout : Outdoor Temperature(˚C) : Indoor Temperature(˚C) - 47 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 48: Cycle Parts

    2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 48 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 49: Electronic Parts

    • IC01A(KIA7036, Reset IC) • Voltage of Micom No. 2, • Replace faulty parts X01(8MHz) (DC +4.5V over) and Soldering condition. - 49 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 50: The Product Is Not Operate With The Remote Controller

    Check point • Check the connecting circuit between CN-DIS1 - R01L(5.1kΩ) - C01L(680pF) - MICOM PIN • Check Receiver Assembly - 50 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 51: Compressor/Outdoor Fan Are Unable To Drive

    • Check the abnormal condition for the component of Compressor/Outdoor Fan Motor. • Check the "open" or "short" of conmecting wires between indoor and outdoor. - 51 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 52: When Indoor Fan Does Not Operate

    The voltage of PIN NO 1(orange) and 3(yellow) of CN-MOTOR. About AC 180V over About AC 50V over TRIAC is not damaged TRIAC Check - 52 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 53: When Vertical Louver Does Not Operate

    • Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver - 53 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 54: When Heating Does Not Operate

    Between Micom DC 5V DC 0V (NO.51) and GND Between IC02M Below DC 1V About DC 12V (NO.11) and GND - 54 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 • Check the abnormal condition for the component of Compressor/Outdoor Fan Motor, 4 way. • Check the "open" or "short" of connecting wires between indoor and outdoor. - 55 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 56: Exploded View

    135316 135313 152302 131410 733010 359011 342800 354210 147581 268711A 35211B 346810 135516 352150 135311 146811 267110 W0CZZ 249951 - 56 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 435301 435511 546810 552102B 559010 649950 549610 552201 552113 552116 552102A 552202 561410 554160 447910 550140 552203B 430411 552203A - 57 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 58 435511 554031 546810 552111 559010 552201 552102-1 567502 W0CZZ 554160 447911 552202 649950 550140 552203-1 561410 552116 430410 552203-2 - 58 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 649950 W0CZZ 435511 559010 W0CZZ-2 668713 546810 552202 552116 553000 567502 447910 435301 554160 552203-2 550140 430410 552203-1 437210 - 59 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 60 P/NO : 3828A20462S MAY, 2008...

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