Universal System Air ConditionerSVC MANUAL(Exploded View)CAUTIONBefore Servicing the unit, read the safety precautions in General SVC manual.Only for
Weekly Program- On/Off schedule of operation for a period of ONEweek. No need to turn the unit On/OFF manually duringworking days. On/Off time is sche
Troubleshooting Guide- 104 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only15) Tro
Troubleshooting Guide- 105 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only16) Tro
Electronic Control Device- 106 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyIV.
Electronic Control Device- 107 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyMai
Electronic Control Device- 108 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only(BG
Electronic Control Device- 109 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only(VK
Electronic Control Device- 110 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOut
Electronic Control Device- 111 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2)
Schematic Diagram- 112 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyV. Schema
Schematic Diagram- 113 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling Cas
Ceiling Cassette 4-way- 15 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2. List
Schematic Diagram- 114 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling Duc
Schematic Diagram- 115 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling Sus
Schematic Diagram- 116 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyGGNLNLC(3)C
Functional Description- 117 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyVI. F
Ceiling Cassette Type- 118 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling
Heating Mode OperationThe unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Hot-
Ceiling Duct Type- 120 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling Duc
Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.COMPO
Ceiling Duct Type- 122 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only Hot-Start
Ceiling & FloorThe function of main control Soft-Dry Operation• The indoor fan speed is automatically set to the low, so the shift of the indoor
Ceiling Cassette 4-way- 16 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3. Spec
Ceiling & Floor- 124 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only Heating
Hot-Start Control• The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 21°C.• The operation diagram is as followi
Outdoor Units- 126 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units1.
❈ Target frequency step (Step_base) exceeds maximum step, the Step_base value follows the maximum stepvalue. ❈ The compressor get the minimum step in
Outdoor Units- 128 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1.3 EEV Control
1.4 Fan controlControl logic of outdoor fan depends on Outdoor temperature.(1) Single fan model (2) Two fan model(36k)Step_Fan Fan A2 High1 Low0XStep_
Outdoor Units- 130 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only(3) Two fan mod
2. Special control2.1 Defrost control2.1.1 Starting to the defrosting operation1) Defrost operation will be start when the conditions below are matche
Outdoor Units- 132 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2.2 Low ambient
- 133 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units2.4 Sump heatin
288950950290210.51805214040110309090110840785840678840 Unit size840 Unit size672 (Hanging bolt)101.5101.5875 (Ceiling opening)875 (Ceiling opening)785
- 134 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units3. Protection c
- 135 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units3.1.2 Discharge
- 136 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units3.2 Inverter Pr
- 137 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyOutdoor Units3.3 Inverter Pr
- 138 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyVII. Exploded ViewIndoor Un
- 139 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only266090130411354211A158591330
- 140 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only130411346810359012130911B352
346810359012A354210552111152302352118330870W0CZZ268711B249951336600B267110336600A359012A336600B336600AABNH-HL, ABNH-GLCeiling Concealed Duct Type- 141
- 142 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only152302268711B267110346810359
- 143 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling Suspended336600A3590
Ceiling Cassette 4-way- 18 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCONNECT
- 144 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only336600A359012W0CZZ346810A346
- 145 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyModel No.: AUUW368C / AUUW36
- 146 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only4372125540314355123496002687
- 147 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1523121353141468111372112687
P/NO : MFL30301501JANUARY, 2008
Ceiling Cassette 4-way- 19 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyRefrige
Ceiling Cassette 4-way- 20 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7. Oper
Ceiling Cassette 4-way- 21 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyThis ai
Ceiling Cassette 4-way- 22 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8. Inst
Ceiling Cassette 4-way- 23 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8.2 Cei
- 2 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyTABLE OF CONTENTSSafety Precau
Ceiling Cassette 4-way- 24 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlySet scr
Ceiling Cassette 4-way- 25 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8.4 Ins
Ceiling Cassette 4-way- 26 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8.5 Ind
Ceiling Cassette 4-way- 27 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyNameQua
Ceiling suspended- 28 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyContents1.
Ceiling suspended- 29 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1. Features
Ceiling suspended- 30 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2. List of F
Ceiling suspended- 31 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3. Specifica
Ceiling suspended- 32 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyAVNH-KL/LL4.
Ceiling suspended5. Wiring DiagramsCONNECTOR NUMBER LOCATION CONNECTOR NUMBER LOCATIONCN-POWER AC POWER SUPPLY CN-TH2 DISCHARGE PIPE SENSORCN-MOTOR BL
I. Indoor UnitsIntroduction...8Ceiling Cassette 4
Ceiling suspended- 34 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only6. Piping Di
Ceiling suspended- 35 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7. Operating
Ceiling suspended- 36 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8. Installat
Ceiling suspended- 37 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCASE 2POSITI
Ceiling suspended- 38 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8.3 Preparin
Ceiling suspended- 39 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlySuspension b
Ceiling Concealed Duct- 40 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only: Insta
Ceiling Concealed Duct- 41 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8.6 Che
Ceiling Concealed Duct- 42 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyControl
Ceiling suspended- 43 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only9. Accessori
• Models ListType RefrigerantChassisname36,000(10.6)42,000(12.3)48,000(14.1)60,000(17.6)Ceiling Cassette4-WayR410A TD ATNH366DLFC ATNH426DLFC ATNH486D
Ceiling Concealed Duct- 44 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyContent
Ceiling Concealed Duct- 45 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1. Feat
Ceiling Concealed Duct- 46 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyPlasma
Ceiling Concealed Duct- 47 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2. List
Ceiling Concealed Duct- 48 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3. Spec
4. Dimensional DrawingsABNH-GL, RLTop view(unit: mm)Front view600600FrontInspection hole※Suitable dimension "H" is necessary to get a s
Ceiling Concealed Duct- 50 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only5. Wiri
Ceiling Concealed Duct- 51 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only6. Pipi
Ceiling Concealed Duct- 52 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7. E.S.
Ceiling Concealed Duct- 53 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyHow to
• Model Number NomenclatureIndoor unitDecoration panel(For Ceiling Cassette Models)A T N H 4 8 6 D L FCSerial NumberFunctionsA : Basic
Ceiling Concealed Duct- 54 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyTable 7
Ceiling Concealed Duct- 55 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyNotes:
Ceiling Concealed Duct- 56 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8. Oper
Ceiling Concealed Duct- 57 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyA/CL117
Ceiling Concealed Duct- 58 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only9. Inst
Ceiling Concealed Duct- 59 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only9.2 Cei
Ceiling Concealed Duct- 60 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only• Selec
Ceiling Concealed Duct- 61 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyAll the
Ceiling Concealed Duct- 62 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCeiling
Ceiling Concealed Duct- 63 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only10. Acc
Contents1. Features & Benefits ...112. List of Functions...
- 64 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyII. Outdoor UnitsIntroductio
Introduction- 65 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1. Avoid installn
Introduction- 66 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only• Model Number No
Contents1. Specifications...682. Dimensional Drawings ...
Inverter SINGLE A- 68 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1. Specifica
Inverter SINGLE A- 69 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyRunning curr
Inverter SINGLE A- 70 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2. Dimension
AUUW42/48/608CL6L7 L8 L9L4HL11L10L5WDL1L2L3Gas side3-way valveControl coverLiquid side3-way valve4-hole for anchor boltsW mm 900H mm 1,165D mm 370L1 m
Inverter SINGLE A- 72 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyAUUW368C/ AU
Inverter SINGLE A- 73 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyAUUW42/48/60
(18k Btu/h model) Convenience• Auto elevation grille(Accessory)• Tele control(Optional)• LCD wired remote control• Group control• Central control(Acc
Inverter SINGLE A- 74 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only4. Piping Di
5. Electric CharacteristicsInverter SINGLE A- 75 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE In
Inverter SINGLE A- 76 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only6. Operation
Inverter SINGLE A- 77 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7. Installat
Inverter SINGLE A- 78 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7.3 Piping l
Troubleshooting Guide- 79 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyIII. Tro
Troubleshooting Guide- 80 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1. Self-
Troubleshooting Guide- 81 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2. Cycle
Troubleshooting Guide- 82 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3. Elect
Troubleshooting Guide- 83 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyTurn on
Ceiling BoardDrain PanMaximum 700mmDrain PumpFlexible drain hosePipe fixtureSlope 1/50~1/100Hard Tube(ex.PVC)++++Polluted AirPurified fresh Air+4.8KV
Troubleshooting Guide- 84 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyTurn on
Troubleshooting Guide- 85 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyWhen ind
Troubleshooting Guide- 86 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only• Confir
Troubleshooting Guide- 87 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only4. Gener
Troubleshooting Guide- 88 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only Error
Troubleshooting Guide- 89 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only1) Troub
Troubleshooting Guide- 90 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only2) Troub
Troubleshooting Guide- 91 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3) Troub
Troubleshooting Guide- 92 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only4) Troub
Troubleshooting Guide- 93 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only5) Troub
Child Lock Function-It prevents the children or others from tamperingwith the control buttons. Unit can be controlled bythe wireless remote controller
Troubleshooting Guide- 94 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use OnlyCheck th
Troubleshooting Guide- 95 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only6) Troub
Troubleshooting Guide- 96 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only7) Troub
Troubleshooting Guide- 97 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only8) Troub
Troubleshooting Guide- 98 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only9) Troub
Troubleshooting Guide- 99 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only10) Trou
Troubleshooting Guide- 100 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only11) Tro
Troubleshooting Guide- 101 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only12) Tro
Troubleshooting Guide- 102 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only13) Tro
Troubleshooting Guide- 103 -Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only14) Tro
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