LG S092CG Manual
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LG S092CG Manual

Room air conditioner
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Room Air Conditioner

SVC MANUAL(Exploded View)
MODELS: S092CG
S122CG
S122HG
S182CG
S182HG
S242CG
S242HG
S092CG
S242CG
S182CG
G122C
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
S092CG
N40
U40
S122CG
N40
U40
S122HG
N40
U40
S182CG
N50
U50
S182HG
N50
U50
S242CG
N50
U50
S242HG
N50
U50
S092CG
N41
U41
S242CG
N51
U51
S182CG
N51
U51
SR2
Internal Use Only
http://biz.lgservice.com
S092CG
S092CP
S41
S122CG
S122CP
S41
S122HG
S41
S182CG
S182CP
S52
S182HG
S51
S242CG
S242CP
S51
S242HG
S51
S122DC
S122DC
S40
S122DP
S122DP
S41
S122DH
S122DH
S40
S182DP
S182DP
S52
S182GP
S182GP
S52
S41
S41
S52
S51
S40
S41
S40
S52
S52

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Summary of Contents for LG S092CG

  • Page 1: Room Air Conditioner

    Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODELS: S092CG S092CG S092CG S092CP S122CG S122CG S122CG S122CP S122HG S122HG S122HG S182CG S182CG S182CG S182CP S182HG S182HG S182HG S242CG S242CG S242CG S242CP S242HG S242HG S242HG S092CG S092CG S122DC S122DC...

  • Page 2: Table Of Contents

    Components Location ..........................45 Troubleshooting Guide ..........................47 Refrigeration Cycle Diagram ........................47 2-way, 3-way Valve ..........................48 Cycle Parts...............................54 Electronic Parts ............................55 Exploded View...............................62 - 2 - Copyright ©2008 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 ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4 Wire remocon Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR Mirror White Blue Wood Metal Cherry - 4 - Copyright ©2008 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 ©2008 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 ©2008 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 ©2008 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. 90˚ - 8 - Copyright ©2008 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 ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Dimensions

    This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Indoor Unit Installation plate Model 9k, 12k Btu Series Dimension - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Dimensions Installation plate Model 18k, 24k Btu Series Dimension 1090 - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Dimensions Installation plate Model 12k (G122C Dimension - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Outdoor Unit

    Dimensions Outdoor Unit Gas side (3-way valve) Liquid side (2-way valve) MODEL unit - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 Liquid side 2-way valve Gas side 3-way valve MODEL 18k Btu Cooling Only Model unit 543.6 11.4 72.5 86.4 - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 Gas side (3-way valve) Liquid side (2-way valve) MODEL 18k, 24k Btu Heat Pump, 24k Btu Cooling Only Model - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: Product Specifications

    Sleeping Operation Drain Hose 1.0mm x 3, 0.75mm Connecting Cable 1.0mm 1.0mm 1.0mm Power Cord 1.0mm 1.0mm 1.0mm 1.0mm - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Connecting Cable 1.5mm 2.5mm 1.5mm x 3, 0.75mm x 3 2.5mm x 3, 0.75mm Power Cord 1.5mm 2.5mm 1.5mm 2.5mm - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: Installation

    More than 10cm More than 10cm • Oil trap should be installed every 5~7 meters. More More than 70cm than 60cm - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: How To Fix Installation Plate

    Connecting Left rear piping Right rear piping part Drain SR2(12K) hose Distance (mm) CHASSIS (Grade) 7K,9K,12K 18K, 24K SR2(12K) - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: 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 - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: For Right Rear Piping

    Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(click- ing sound). Pipe Vinyl tape(narrow) - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 22: 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 - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 • Bend the tubing to the left side of chassis. Tubing holder - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 24: 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 - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 25: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Use a circuit NORMAL Grade breaker or time CROSS delay fuse. 5k~12k 14k~18k 24k~28k -SECTIONAL AREA Cable Type(B) H07RN-F H07RN-F H07RN-F - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 26: 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. - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: 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 - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 28: Air Purging

    Usually, the cylinder is used in a vertical standing position. - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 This completes air purging with a vacuum pump. The air conditioner is now ready to test run. Vacuum pump - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 30: Test Running

    The pressure of the gas side Refrigerant TEMP. service valve. 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 - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: 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 - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 32: Defrost Control

    • While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off. - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: 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. - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 34: Test Operation

    • When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds. • When the appliance-pause key is input by the remote control, the long "beep—" sounds. - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Display Function

    • Indoor room temperature • Indoor Thermistor (once) thermistor open/short assembly check • Indoor pipe temperature thermistor open/short. 3sec 3sec 3sec - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 36: Remote Control Operations

    Used prior to using modes printed in blue at the bottom of buttons. 17. AUTO CLEAN (OPTIONAL) Used to set Auto Clean mode. - 36 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Disassembly

    1. Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 37 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 2EA in the Eva Holder, at the right 1EA). • When repair, do not damage the Caution label. - 38 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 Cross-flow fan • Remove the left end of the cross-flow fan from the self-aligning bearing. - 39 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 40: Schematic Diagram

    Schematic Diagram Schematic Diagram Electric Control Device • Heat Pump Model(LED TYPE) - 40 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Wiring Diagram

    250V T2A S/W1 GN/YL CN-N2 RY-4WAY DISPLAY RY-FAN CN-4WAY PWB ASM. TERMINAL BLOCK TO OUTDOOR UNIT P/No : 3854A20427B - 41 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 Schematic Diagram Outdoor Unit Models: 9k, 12k Cooling only Model Models: 12k Heat pump Model - 42 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 Schematic Diagram Models: 18k Cooling only Model Models: 24k Cooling only Model Models: 18k, 24k Heat pump Model - 43 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 44: Components Location

    Schematic Diagram Components Location MAIN P.W.B ASSEMBLY • TOP VIEW • BOTTOM VIEW - 44 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 Schematic Diagram • Model : G122C MAIN P.W.B ASSEMBLY • TOP VIEW • BOTTOM VIEW - 45 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 Schematic Diagram DISPLAY ASSEMBLY – 6871A20574B - 6871A20575A (G122C - 46 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 47: Troubleshooting Guide

    HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING 3-WAY VALVE ACCUMU VALVE LATOR (Heating Model Only) COOLING COMPRESSOR HEATING - 47 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 48: 2-Way, 3-Way Valve

    Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 48 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 49: Pumping Down

    R-22. Thus, the high pressure side gauge of charge set should be used higher pressure gauge of 50kg/cm2 range. - 49 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 50 – Discharge the refrigerant gradually; if it is dis- charged too suddenly, the refrigeration oil will also be discharged. - 50 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 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. - 51 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 52: 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. - 52 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 P = 3 + 0.0123 x T + 0.8 x T . g) Where, P : Suction Pressure(kg/cm Tout : Outdoor Temperature(˚C) : Indoor Temperature(˚C) - 53 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 54: Cycle Parts

    2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 54 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 55: Electronic Parts

    • IC01A(KIA7036, Reset IC) • Voltage of IC No.1, • Replace faulty parts OSC01B(8MHz) (DC +4.5V over) and Soldering condition. - 55 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 56: The Product Is Not Operate With The Remote Controller

    • Check the connecting circuit between CN-DIS1® Ì - R11L(100Ω) - C01A(100nF) - MICOM PIN • Check Receiver Assembly - 56 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 57: 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. - 57 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 58: 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 - 58 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 59: When Vertical Louver Does Not Operate

    • Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver - 59 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 60: 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 - 60 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 • 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. - 61 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 62: Exploded View

    147581 352115 346810 35211B 268711A 135516 352116 266090 Part for Plasma Models W6640 264110 146811 263230A 267110 249951 268711B - 62 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 342800 Part for Plasma Models 159830 359011 135311 354210 147581 352115 346810 35211B 268711A 135516 352116 146811 267110 249951 - 63 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 342800 Part for Plasma Models 159830 359011 135311 354210 147581 352115 346810 35211B 268711A 135516 352116 146811 267110 249951 - 64 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 Indoor Unit : G122C 135316 131410 733010 359011 342800 354210 147581 268711A 35211B 346810 135516 352150 135311 146811 267110 249951 - 65 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 66 Part for 567502 549610 External Models 554160 447910 552202 649950 550140 552203A 561410 552116 430411 552203B Part for H/P Models - 66 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 552116 552102A Part for H/P Models 552202 567502 Part for External Models 561410 554160 447910 550140 552203B 430411 552203A - 67 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 68 435301 435511 546810 552102 559010 649950 549610 552111 567502 Part for External Models 554160 447910 550140 552203B 430411 552203A - 68 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 549610 435511 559010 546810 552202 Part for H/P Models 552116 561410 447910 554160 550140 435301 552203A 437211 552203B 430411 - 69 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 70 Outdoor Unit: 24k Btu/h Cooling Series 554031 437212 552112 552102 552113 649950 549610 435511 559010 546810 447910 554160 550140 435301 552203A 437211 552203B 430411 - 70 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 554031 437212 552112 552102 552113 649950 549610 435511 559010 546810 435512 447910 554160 437211 550140 552203A 435301 552203B 430411 - 71 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 72 549610 559010 546810 552202 Part for H/P Models 435512 552116 561410 447910 554160 437211 550140 552203A 435301 552203B 430411 - 72 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 JULY, 2008 P/NO :3828A20462F...

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