Page 1 Internal Use Only http://biz.lgservice.com Multi Type Air Conditioner SVC MANUAL(Exploded View) MODEL • Indoor Unit: Duct Type Room Type 4 Way CST 1 Way CST AMNH096TEC0 AMNH076LQL0 AMNH096BTG0 AMNH096TCC0 AMNH096LQL0 AMNH126TEC0 AMNH126BTG0 AMNC096TCC0 AMNH096LRL0 AMNH186TEC0 AMNH186BTG0 AMNH126TCC0 AMNH126LRL0 AMNH246TFC0 AMNH096BPA0...
Page 2: Table Of Contents
Cycle Troubleshooting Guide........................187 Electronic Parts Troubleshooting Guide ....................188 General Information..........................193 (3-way) Valve ............................209 Exploded View............................213 Indoor Unit ............................213 Outdoor Unit ............................242 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 3: Model Number Nomenclature
And No. of Connectable Indoor Units Ex) A2U : Connectable max. 2 Indoor Units A6U : Connectable max. 6 Indoor Units - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 4 Chassis Name TE/TB/TD Before 2003 : Basic Function TE/TD Before 2003 : Plasma Filter 5. Chassis Name Chassis Abbrevation - 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5: Symbols Used In This Manual
This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 6: Safety Precautions
• Improper wiring or installation may • There is risk of fire or electric shock. cause fire or electric shock shock. - 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 or electric • There is risk of fire or electric damage furniture. shock. shock. - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 • There is risk of property damage, switches on or off. There is risk of fire. failure of product, or electric shock. explosion or fire - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 • A bad connection may cause water • To avoid vibration or water leak- failure of product. leakage. age. 90° - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 • There is risk of fire, electric shock, • There is risk of personal injury. or damage to the plastic parts of the product. - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 • They may burn or explode. • The chemicals in batteries could cause burns or other health hazards. - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 12: Dimensions
Installation plate Model 7k, 9k 9k, 12k 18k, 24k 7k, 9k, 12k 18k, 24k 9k, 12k Dimension 1080 1090 - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 13 3. Art Cool Deluxe Type SZ,SU,S3 Installation plate Installation plate MODEL 9K, 12K 18K, 24K 7K, 9K, 12K Unit 1030 1170 - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14: Duct Type
Dimensions 4. Duct Type BH/BG BT/BT1/B1/B2 MODEL 9K/12K 18K/24K 30K/36K 9K/12K 9K/12K 18K/24K W(mm) 1060 1180 1100 H(mm) D(mm) - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 5. CVT Type VB(18K/24K) 63mm 38mm 250mm 175mm (Installation Plate) (Rear Side) VE(8K/12K) Installation plate MODEL 9K/12K 18K/24K Unit 1200 - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 ø6.35 flare Gas pipe connection ø9.52 flare Drain pipe connection Power supply connection Air discharge grill Air suction grill - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 9k: Ø9.52, 12k: Ø9.52, 18k: Ø12.7 flare Drain pipe connection Power supply connection Air discharge grill Air suction grill - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 18 Gas pipe connection ø12.7 flare-24K, ø15.88 flare-30K Drain pipe connection Power supply connection Air discharge grill Air suction grill - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 Gas pipe connection ø12.7 flare-24K, ø15.88 flare-30K Drain pipe connection Power supply connection Air discharge grill Air suction grill - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 ø6.35 flare Gas pipe connection ø15.88 flare Drain pipe connection Power supply connection Air discharge grill Air suction grill - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 21: Outdoor Unit
Dimensions Outdoor Unit 30K/40K 18K/24K MODEL 14K, 16K 14K, 18K 1060 1165 1040 1135 - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 22: Product Specifications
Note : 1.# See the page "Combination Table" 2. Due to our policy of innovation some specifications may be changed without notification. - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 23: Lge Internal Use Only
270/558 (267/552) 270/558 (267/552) Morning Beige Morning Beige Morning Beige Morning Beige Morning Beige Front Panel Color "#" Position - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 Note : 1.# See the page "Combination Table" 2. Due to our policy of innovation some specifications may be changed without notification. - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 Multi F /F DX series Multi F /F DX series Power and transmission interunit cable No.x mm 4*0.75 4*0.75 4*0.75 4*0.75 - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 3/8(9.52) 3/8(9.52) Drain hose (ID Ø) 38.6*10.0*18.1 38.6*10.0*18.1(980*255*460) Packing Dimension (W*H*D) inch(mm) 263/539 263/539 Stuffing Quantity Without S/Parts 20/40ft - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 Note : 1.# See the page "Combination Table" 2. Due to our policy of innovation some specifications may be changed without notification. - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 Note : 1.# See the page "Combination Table" 2. Due to our policy of innovation some specifications may be changed without notification. - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 Mult F/F DX series Mult F/F DX series power and transmission interunit cable No.x mm 4*0.75 4*0.75 4*0.75 4*0.75 - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 30 3. # : See the page "Combination Table" 4. Due to our policy of innovation some specifications may be changed without notification. - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 31 3. # : See the page "Combination Table" 4. Due to our policy of innovation some specifications may be changed without notification. - 31 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 32 3. # : See the page "Combination Table" 4. Due to our policy of innovation some specifications may be changed without notification. - 32 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 (If need, use the connector which is included in the indoor unit) 3. The BD should be installed inside the building. - 33 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 34: Installation
• Use a stud finder to locate studs to prevent unneces- sary damage to the wall. More than 2m - 34 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 • Ensure the spaces indicated by arrows from the wall, more more ceiling, or other obstacles. • The indoor unit must have the maintenance space Unit:cm around. Floor - 35 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 36 • Ensure the spaces indicated by arrows from the wall, ceiling, or other obstacles. More than 20cm (Floor/Wall installation) - 36 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37: How To Fix
CHASSIS (Grade) SQ(7/9k) SR(9/12k) ST(18/24k) Installation plate Ø70mm Ø70mm Left rear piping Right rear piping Distance (mm) CHASSIS (Grade) - 37 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 38 • As the following picture, Insert drain hose in the han- dle of drain pan, and join drain hose and connecting hose. Panel Front Connector - 38 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39: Fixing Indoor Unit
6. Look at suited horizon by horizontal meter on the horizontal setting line, and Fix lightly the map by adhesive tape. Horizontality T I O - 39 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 40 Right rear piping (SZ) Installation plate Left rear piping Right rear piping Distance (mm) CHASSIS (Grade) (9k, 12k) (7k) - 40 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 41 4. Avoid places where sulfurous acid gas or corrosive gas is generated. 5. Avoid places near high frequency generators. - 41 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 • A place where the unit can withstand its vibration. M10 washer • A place where service can be easily performed. (Local M10 SP. washer supply) M10 Nut - 42 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 • A place where the unit can withstand its vibration. • A place where service can be easily performed. M10 washer (Local M10 SP. washer supply) M10 Nut - 43 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 44: Installation Of Unit
• A place where the unit can withstand its vibration. supply) M10 Nut • A place where service can be easily performed. - 44 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 45: Piping And Drainage Of Indoor Unit
Since the flare part comes into contact with the connec- tors, carefully check the flare finish. - 45 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 46: Connection Of Indoor Unit Piping
• Make a small loop with the cable for easy connec- Indoor unit tubing Flare nut Pipings tion later. - 46 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 Pipe Drain hose into their slots(clicking sound). Vinyl tape (narrow) Wrap with vinyl tape(wide) - 48 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 49 Wrap with vinyl tape Open-end wrench (fixed) Pipe Flare nut Connection pipe Wrench Vinyl tape(wide) Drain hose Indoor unit tubing - 49 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51: For Right Rear Piping
• When extending the drain hose at the indoor unit, install the drain pipe. Tape Connecting pipe Drain hose Connecting cable - 51 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 52 • Don't connect the cable to the indoor unit. • Make a small loop with the cable for easy connection later. Vinyl tape (narrow) Adhesive - 52 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 53 8. Reroute the pipings and the drain hose across the back of the chassis. Piping for passage through piping hole - 53 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 54 • Bend the tubing to the left side of chassis. • Bend the tubing to the left side of chassis. - 54 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 - M10 ➂ Spring washer - M10 ➃ Nut - W3/8 or M10 ➄ Suspension bolt - W3/8 or M10 - 55 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 56 • Drill the piping hole on the wall slightly tilted to the outdoor side using a ø70 hole-core drill. WALL Indoor Outdoor 5~7mm - 56 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 57 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 - 57 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 58: Ceiling Mounting
• Mount the suspension bolts to the anchor-nuts firmly. - 58 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 59: Drill A Hole In The Wall
Drill the piping hole at either the right or the left with Indoor Outdoor the hole slightly slanted to the outdoor side. - 59 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 60: Drain Hose
Side of view • The unit must be declined to the bottomside of the unit when finished installation. Ceiling - 60 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 61 • Fit the projection hooks of the side plates to the 'Side Panel' and the 'Front Panel' by lifting it. • Fasten the screws. - 61 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 62 'Install Plate' to the inside or outside accord- ing to the installation circumstances. 1 2 3 - 62 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 63 • Fit the projection hooks of the side plates to the 'Side Panel' and the 'Front Panel' by lifting it. • Fasten the screws. - 63 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 64 • Assemble the 'Side Plates(R,L)' with 2 screws on both Wall left and right side. Floor mount bracket Install plate Piping hole - 64 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 65 3. Avoid places where inflammable gas is generated. 4. Avoid place where noxious gas is generated. 5. Avoid places near high frequency generators. - 65 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 66: Indoor Unit Installation
Plate Washer - M10 Wall Indoor Outdoor CAUTION • Tighten the nut and bolt to prevent unit from falling off. - 66 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 67 • Drill the hole for anchor bolt on the wall. Unit:mm Ceiling board 875 (Ceiling opening) TH/TD 785 (Hanging bolt) 840 Unit size Unit:mm - 67 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 68 Plate Washer - M10 Indoor Outdoor CAUTION • Tighten the nut and bolt to prevent the unit from falling off. - 68 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 69: Remote Controller Installation
The maximum length of the cord is 100m. If the length of the cord exceeds 50m, use a wire size greater than 0.5mm - 69 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 70 Re-attach the cover. going to be used for some long time. • Slide it back into position. - 70 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 71: Connecting Pipings And The Cable To Outdoor Unit
• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal function of a overload protection device. • Proper starting power is not given to the compressor. - 71 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 72: Electric Characteristics
23.1/14.0 : MSC of (inv. comp.) / (const. comp.) kW : Fan Motor rated output (kW) FLA : Full Load Amperes (A) - 72 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 73 HAR or SAA). H07RN-F approved by HAR or SAA). NORMAL CROSS- NORMAL CROSS- SECTIONAL AREA SECTIONAL AREA 0.75mm 3.5mm - 73 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 74: Checking The Drainage And Pipe Forming
• Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. - 74 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 75 Connecting area drain hose Tip of drain hose dipped in water Water Leakage leakage Ditch checking Less than 50mm gap - 75 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 76: Drain Piping
Less than Tip of drain hose 50mm gap dipped in water Water Water Water Waving leakage leakage leakage Ditch - 76 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 77 A ≥ 70mm a water leakage caused by the blocking B ≥ 40mm of intake air filter. C ≥ 20mm - 77 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 78 • When the test is completed, connect the flexi- ble drain hose to the drain port on the indoor unit. Drain pan - 78 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 79: Maximum Length Of Pipe And Extra Charge Of Refrigerant Charge
25g/m 18k, 24k 1/2"(12.7mm) 1/4"(6.35mm) 7.5m 35g/m ❈ Extra refrigerant = (Extended length - Rated length) x Additional refrigerant - 79 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 80 10m from each other. BD Unit Outdoor Unit Installation of the outdoor unit in a lower position - 80 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 81 7.5m 7.5m from each other. Outdoor Unit Installation of the outdoor unit in a lower position - 81 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 82 0.3 ( kg / m Volume of the room at which indoor unit of the least capacity is installed - 82 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 83 Adjust to indoor unit piping size Ø19.05 BD Unit A6UW406FA0 Y-Branch Liquid Ø 6.35 Adjust to indoor unit piping size Ø15.88 A4UW306FA1 - 83 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 84 (field supply) Liquid and gas Liquid and gas Insulator for Insulator pipe joints pipe joints field piping (included with kit) - 84 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 85: Test Running
I In the case when the vibration of the unit is conveyed to the hose, secure the unit with an anti-vibration rubber. Discharge temperature - 85 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 86 Main PCB Assembly to the ' CEILING' state. The initial state of the slide switch is set for the bottom installation. CN_INSTALL CEILING BOTTOM - 86 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 87 ❏ Aren't terminal screws loosened? (refrigerant and drain piping)? ❏ Is there any leakage of refrigerant? M4..118N.cm{12kgf.cm} M5..196N.cm{20kgf.cm} M6..245N.cm{25kgf.cm} M8..588N.cm{60kgf.cm} - 87 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 88: System Layout And Piping Length
• Y Branch Pipe - Included in outdoor unit - Can not be purchased separately Main Pipe 30K(4rooms) 40K(6rooms) 48K~56K(7~8rooms) - 88 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 89: Installation
(LEV service) Suspension bolt pitch. Main Pipe (36) (56) Branch Pipe Cover Control Inspection opening (Controller service) (Bottom view) - 89 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 90: Installation Of The Main Unit
• Be sure to install the unit with the ceiling-sie up. • Do not install near bedrooms. the sound of refrigerant flowing through the piping may sometimes be audible. - 90 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 91: Connection Of Piping
• Never use the plastic cap for sealing. • Make sure to use brass cap with the end of pipe sealed or welded tightly. - 91 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 92: Connection Of Wiring
Allow 300 mm for the pulling-out section of harness. Fix the wires com- pletely with wire clamps(4 locations). - 92 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 93: Operation
• While compressor on, the indoor fan is off when the indoor pipe temp. is below 20°C, when above 27°C , it - 93 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 94 • While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper- ature. - 94 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 95 • The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. • If the appliance is on pause at the time set by the timer, the pause continues. - 95 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 96: Sleep Timer Operation
• When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. - 96 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 97: Forced 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. - 97 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 98: Function Of Indoor Unit
• The louver can be set at the desired position or swing up and down automatically.(Model base) "Wall Mounted Type is standard" * Functions is dependent on model type. - 98 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 99 • The indoor fan stops until the evaporator pipe temperature will be reached at 28°C. - 99 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 100 Airflow Direction Control 2nd F Air Circulation Reset : Fan Operates without cooling or heating. Horizontal Airflow Direction Control Button(Optional) - 100 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 101 Program Week Holiday SET/CLR Hour : Fan Operates without cooling & heating Fan Operation Mode Phase Control Setting Timer - 101 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 102 Cancel Cancel Weekly Program Program Week Holiday : Fan Operates without cooling & heating SET/CLR Hour Fan Operation Mode - 102 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 103 Airflow Direction Control Air Circulation : Fan Operates without cooling or heating. Horizontal Airflow Direction Control Button(Optional) 2nd F Reset - 103 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 104: Function Of Outdoor Unit
• To protect comp from being overload, down comp Hz. Low Pressure Protection • If cylce pressure is low (around 0.3kgf/cm2), turn off comp and outdoor fan. - 104 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 105: Remote Control Operation
Used to set Auto Clean mode. HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (OPTIONAL) Used to set the desired horizontal airflow direction. - 105 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 106 • Heating Operation Mode(except cooling model) Room Temperature Checking Button Used to check the room temperature. Timer Cancel Button Used to cancel the timer. - 106 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 108 • To control the room temperature by a wired remote controller, install controller(room temp. sensor) to sense the temperature more accurately. • Maunfactured in the position 1. - 108 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 109: Wiring Design
• The maximum length of connecting wire should be below 200m(25Ω) on connecting each units. • Use a wire more than 0.5mm2 - 109 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 110 R03S R01S HIGH Slide switch for ceiling height (4) Close the rear cover and check if it works normally. - 110 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 111 AUTO Heater Preheat Defrost Humidify Filter Out door Timer Time ZONE Operation unit Program set Set no. Time 01 - 111 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 112 Chassis Static Pressure(mmAq) Ca(Btu/h) Step(Hi/Med/Lo) Setting Value 26.5 CMM 23 CMM 20 CMM 32 CMM 29 CMM 26.5 CMM - 112 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 113 6.5 CMM 9.5 CMM 8.5 CMM 7.5 CMM 15 CMM 13.5 CMM 11.5 CMM 17 CMM 15 CMM 13.5 CMM - 113 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 114: Control Devices And Function
- Off : no signal - Error mode : blinking with red color TOTAL On button • Operate all linked units sequentially. - 114 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 115: Electrical Wiring
C and D are the communication lines for the Central Control. CONTROL UNIT Use two shield lines for C/D connecting line.(Earth the shield line) - 115 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 116 * LGAP : LG Air conditioners Protocol • Function of LG Network - It is possible to connect the network of LG air conditioners and to connect various contents of the network system, which is simple, deluxe and PC central control.
Page 117 3) If the remote control is reset, normal mode starts. * Notice : Confirm that wired and wireless remote control are able to select the address or not. - 117 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 118: Test Run Method
• Don’t install near high moisture & high oscilla- tion area. • Don’t pull the connected wire. • Don’t install near direct sunlight or heat source. - 118 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 119 After attaching the supplied wire to terminal, link the connecting wire. If necessary, Cut the indicated part of front case to draw the lead wire. - 119 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 120: Rotary Switch
Central control and sub (with wire ass'y) should be purchased as optional. Central Control(1EA) PI485(PQNFP14A0M) Wire Assembly 1 Screw(4EA) Wire Assembly 2 - 120 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 121: Deluxe Central Control
Where needs from a new customer occur or where purchase of additional air conditioner is done, the Deluxe Central control can be smoothly installed. Deluxe Outdoor Unit Central control PI485 Outdoor Unit PI485 - 121 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 122 Deluxe Central control and so a manager can easily control all air conditioners. Automatic operation is also allowed without a manager, by using schedule function. - 122 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 123 Using such upgrade function always enables to construct a modern type of Central Control System. - 123 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 124 2) JVM (Java Virtual Machine) is basically installed at the Windows but some versions of Window XP may be manually installed. - 124 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 125 Setup of a weekly schedule for all, group and individual air conditioner enabled operation of the system. Processing through enlist of extra schedule for a year is available. PQCSW502A0 - 125 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 126: System Configuration
- 1 pcs per outdoor units Note: - GUI(Graphic User Interface) may be changed without any notice, for improvement or options. - 126 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 127: Disassembly Of The Parts (Indoor Unit)
& step motor conductor with sensor holder, Motor, Evaporator & P.C.B. Motor Conductor Power Conductor Sensor Conductor Earth Conductor Step Motor Conductor - 127 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 128 • Remove the left end of the cross-flow fan from the self-aligning bearing. - 128 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 129 - Pull the control box out from the chassis carefully. 4Way/Fan Connector Comp Connector Motor Power Connector Connector Power Connector Comp Connector - 129 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 130 - Remove 4 screws securing motor mount from the Turbo Fan chassis and lift up the motor mount and the brack- Bolt Motor Mount - 130 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 131 Inlet Grille assembly. 1) Before removing the control box, be sure to take out the wire screwed at the other end. - 131 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 132 1) Before removing the control box, be sure to take out the wire screwed at the other end. Earth Conductor - 132 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 133 4) To remove the Evaporator. • Remove 3 screws securing the evaporator(at the left 2EA in the Eva Holder, at the right 1EA). - 133 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 134 • Remove the left end of the cross-flow fan from the self-aligning bearing. - 134 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 135 • Remove the lower air-guide toward “arrow mark” by turning upwards as shown in figure. Barrier Air guide Lower Air guide - 135 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 136 1. Before removing the control box, be sure to take out the wire screwed at the other end. - 136 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 137: Caution Label
2EA in the Eva Holder, at the right 1EA). Caution label When repair, do not damage the Caution label. - 137 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 138 • Remove the left end of the cross-flow fan from the self-aligning bearing. - 138 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 139 • Remove 2 screws securing the control box and pick out the control box carefully. - 139 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 140 • If necessary, disconnect the display PCB con- nector from PCB assembly. • Remove 2 screws of PCB assembly. Display Cover - 140 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 141 • Remove the evaporator assembly by sliding toward arrow mark. (As shown in figure) Side Cabinet EVA. Barrier-R - 141 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 142: Schematic Diagram
Schematic Diagram Schematic Diagram Electronic Control Device 1. Indoor Unit 1) Split Type C02F,0.01/50V C01F,0.01/50V R01T,10K R02T,10K R03T,10K R04T,10K R05T,10K - 142 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 149 (INT1)P03 (SI1)P04 P77(AIN17) (SO1)P05 P76(AIN16) WR_TX (SCK1)P06 P75(AIN15) R06T R01T R03T R04T R05T CN_Contact BR-762C-4P CN_POWER BR-762C-2P YW-396-02V CN-COMM - 149 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 150 CN_TH2 CN_TH1 5 4 3 2 3 2 1 CN_Test 3 2 1 RC03M RC02M RC01M CN_TH5 CN_TH4 CN_TH3 - 150 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 151 Schematic Diagram 2) A6UW406FA0 RY-FAN(A)-H JQ1A-12V RY-FAN(A)-L JQ1A-12V RY-FAN(B)-H JQ1A-12V RY-FAN(B)-L JQ1A-12V - 151 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 153 R 0 7 S R 0 6 S R 0 5 S TXD1 OSC01B RXD1 Xtal1 14.7456 R01B Xtal2 RXD2 TXD2 - 153 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 154: Wiring Diagram
LIMIT FORCED S/W-1 CONNECTOR OPERATION PCB ASM LIMIT S/W-2 CN-STEP1 CN-STEP2 STEP STEP INDOOR WIRING DIAGRAM MOTOR-1 MOTOR-2 3854A20135X - 154 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 155 FLOAT S/W CONTROL 3854A20419C 10. CST Type Indoor Unit - TE1 chassis 11. CST Type Indoor Unit - TH chassis - 155 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 156 DRAIN PUMP REMOTE CONTROL CN-POWER FUSE T3.15A CN-AIRC (OPTION) 1(L) 2(N) TO OUTDOOR UNIT P/N:3854A20405A 14. ART COOL MIRROR-SE - 156 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 158 L N S L N S L N S L N S CN-PWR CN-PWR TO INDOOR UNIT TO INDOOR UNIT 3854A20354G - 158 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 159 A ROOM B ROOM C ROOM D ROOM POWER SUPPLY TO INDOOR UNIT TO INDOOR UNIT 3854A20354K 3854A2 TO INDOOR UNIT - 159 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 160: Components Locations
Schematic Diagram Components Locations 1. Indoor Unit MAIN P.C.B ASM 1) Split Type • DC part • AC part - 160 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 162 C01A OR2H IC02K IC01K BC01D C05D IC01J IC02D IC01A R01P IC03D JP14 R02A JP50 JP23 R04D JP13 C01K R01K - 162 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 163 Schematic Diagram 3) Art Cool Deluxe Type • BLDC MOTOR TOP VIEW BOTTOM VIEW - 163 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 164 Schematic Diagram 4) Duct Type • High static (BH/BG chassis) • Built in type (BP chassis) - 164 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 169 Schematic Diagram • 4 way(TE/TF/TD chassis) • 4 way(TE1/TH chassis) TOP VIEW BOTOM VIEW - 169 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 170 Schematic Diagram 6) Convertible type • VE chassis AC part TOP VIEW BOTTOM VIEW DC part TOP VIEW BOTTOM VIEW - 170 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 173 VE chassis TOP VIEW PWB ASM:6871A20390 PCB:6870A90065K BOTTOM VIEW VB chassis 3) Art Cool Type TOP VIEW BOTTOM VIEW - 173 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 174 Schematic Diagram 4) Art Cool Deluxe Type TOP VIEW BOTTOM VIEW 5) Art Cool Mirror TOP VIEW BOTTOM VIEW - 174 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 177 Schematic Diagram 3) Central control PCB) 1) Top View 2) Bottom View - 177 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 178 Schematic Diagram 4. SUB P.W.B ASSEMBLY 1) Art Cool Type TOP VIEW BOTTOM VIEW - 178 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 179: Troubleshooting Guide
Troubleshooting Guide Troubleshooting Guide Refrigeration Cycle Diagram 1. A2UW146FA0/1/2, A2UW166FA0/1, A2UW186FA0, A3UW186FA0/1 - 179 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 185 C Liquid(Ø9.52 or Ø12.7) B Liquid(Ø9.52 or Ø12.7) A Liquid(Ø9.52 or Ø12.7) D Liquid(Ø6.35) C Liquid(Ø6.35) B Liquid(Ø6.35) A Liquid(Ø6.35) [Indoor Unit] - 185 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 186: Self-Diagnosis Function
6times 2times Cond. Pipe Low 6times 3times Heatsoml Th error (Open/Short) 6times 5times ❈ CH52 : Only A2UW146FA0(FM17AH UL0) - 186 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 187: Cycle Troubleshooting Guide
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 187 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 188: Electronic Parts Troubleshooting Guide
4) DC5V 4) Replace IC02D. 4) IC02D(7805) 5) The voltage of micom pin 29 5) Replace IC01A. 5) IC01A(KIA7036) DC4.5V↑ - 188 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 189 -Voltage between CN1 ➀ - ➆ : DC +5V operate temperature regulating(L / M) and wind speed selecting. Check the Display PWB Ass'y • Check receiver ass'y - 189 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 190 Check the electrical wiring diagram of Outdoor side. Check the open or short of connecting wires between Indoor and Outdoor. - 190 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 191 The voltage of Pin No 1(orange) and 3(black) of CN-FAN. About AC 160V over About AC 50V over SSR is not damaged Check SSR - 191 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 192 If there are no problems after above checks. • Confirm the assembly condition that are catching and interfering parts in the link of the vertical louver - 192 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 193: General Information
Float switch Open Communication(Indoor ↔ Outdoor) Communication Poorly Outlet pipe sensor Open / Short Different operation mode Different operation mode - 193 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 194 8 times Discharge Pipe Temp. High (INV) 3 times 2 times Discharge Pipe Temp. High (Cons.) 3 times 3 times - 194 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 195 6 times 2 times Heat sink temp. high Heat sink sensor (open/ short) 6 times 5 times Open / Short - 195 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 196 8. If the resistance of the sensor is 0 or 5Vdc, then sensor is abnormal. ¡ Repair or Change the PCB. - 196 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 197 3. Check the volt. Of main PCB power source. (DC 12V, DC 5V) ¡ Repair or Change the main PCB. 4. Check the installation of wired remote controller. (Noise interference) ¡ Adjust the state of installation - 197 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 198 3. Check the level of water 4. Check the volt. Of Drain pump power supply. (AC 230V) ¡ Repair or Change the main PCB. - 198 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 199 ¡ Check the another indoor unit. * CH05 is displayed at indoor unit, CH53 is displayed at out- door unit. - 199 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 200 5. Check the insulation from water at IPM part. ¡ Check the trace of water. 6. Check the IPM circuit. - 200 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 201 2. Check the fan operation is right. 3. Check the current. 4. Check the install condition. 5. Check the internal circuit. (C/T, Diode, Resistor) - 201 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 202 • Check the components. Check Point 1. Check the power source. 2. Check the components (B/Diode, Reactor, PSC Parts ) - 202 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 203 2. Check the install condition for over load. (Trans1, B/Diode, Diode, Resistance) 3. Check the SVC V/V open. 4. Check the leakage of refrigerant. - 203 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 204 2. Check the components 2. Check the insulation of IPM part. (IGBT, R04S, NF1, BD02S) 3. Check the compressor. (same with CH21) - 204 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 205 3. Check the leakage of refrigerant. 3. Check the leakage of refrigerant. 4. Check the constant compressor. (same with CH21) - 205 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 206 3. If the resistance of the sensor is 0 kΩ or ∞, then sensor is abnormal. Ω If the voltage of the sensor is 0 V or 5Vdc, then sensor is abnormal. - 206 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 207 • CH 51 1. Check the insertion condition of EEPROM. 1. Check the indoor unit capacity. 2. Check the poor soldering - 207 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 208 1. Check the install condition for over load. (Refrigerant, Pipe length, Blocked, …) 2. Check the Outdoor temp. is very high. - 208 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 209: (3-Way) Valve
(Servicing) (connected manifold gauge) manifold gauge) Open Gas releasing Open Open Open (connected (Servicing) (connected manifold gauge) manifold gauge) - 209 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 210: Pumping Down
• Be sure to short pressure S/W. otherwise Low pressure S/W detect low pressure skete and stops the compressor. - 210 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 212: Gas Charging
- Be sure to check for gas leakage. cient, wait approximately 1 minute and then repeat the procedure(pumping down-pin). - 212 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 213: Exploded View
354210 352115 352116 147581 268711A 346810 35211B 263230B 135516 263230A 352150 135311 146811 268711B 266090 267110 268711C W0CZZ 249951 - 213 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 214 W51620 135311 147581A 352115 147581B 352116 268711A 346810 35211B 263230B 135516 263230A 352150 268711B 146811 249951 266090 268711C W0CZZ - 214 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 215 733010 159830 342800 359011 135311 354210 147581 346810 35211B 268711A 135516 263230B 266090 352150 146811 263230A 267110 249951 268711B - 215 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 216 733010 342800 359011 159830 135311 354210 147581 346810 35211B 268711A 135516 263230B 266090 352150 146811 263230A 267110 249951 268711B - 216 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 218 267110 359011 159830 342800 354210 131410 346810 352150 249951 352114 352118 W0CZZ 35211B 266090 146811A 147581 135311 268714 249941 - 218 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 219 159830 733010 267110 359011 342800 354210 131410 346810 352150 249951 352114 352118 266090 35211B 146811A 147581 135311 268711A 249941 - 219 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 220 733010 267110 359011 159830 342800 354210 131410 346810 352150 249951 352115 352116 266090 35211B 146811A 147581 135311 268711A 249941 - 220 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 221 733010 267110 359011 159830 342800 354210 131410 346810 352150 249951 352115 352116 266090 35211B 146811A 147581 135311 268711A 249941 - 221 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 222 159830 359011 342800 267110 354210 131410 352150 346810 135516 266090 35211B 263230A 135500 147581 146811A 249951 263230B 268711B 135311 - 222 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 223 263230C 159830 336600B 249951 346810B 268711A 263230B 346810A 359012A 268711B 336600A 354210 352118A 359012B 330870 352118B 267110 158591 352150 - 223 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 224 263230A 159830 263230C 336600B 346810 359012A 249951 268711A 263230B 336600A 359012B 268711B 354210 352118A 267110 330870 352118B 158591 352150 - 224 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 225 359012B 137214 346810 359012A 336600A 336600B W0CZZ 249951 354210 152302 268711 352111 263230A 263230B 263230C 552111 267110 352118 330870 - 225 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 226 152302 346810 336610 267111 359012B A/CL W0CZZ 359012A 267110 354210 249951 263230A 268714 552111 263230B 352111 352118 330860 263230C - 226 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 227 263230B 336600A 359012B 263230C 268711 158591 W0CZZ 359012A 352118A 346810 336600B 352118B 354210 330870 237202 *Accessory: Front Panel Assembly. - 227 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 230 Cassette Type - 4 way[TE chassis] 266090 249951 263230C 263230B 263230A 268711 159830 354211 352118 35211A 158591 266010 330870 352111 Applied for 18K Model - 230 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 231 Exploded View 130412 W0CZZ 346811 359012 140570 130911A * Accessory : Front Panel Assembly 267110B 130911B 267110A 352150 (Optional) - 231 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 232 Cassette Type - 4 way[TE(1) chassis] 266090 249951 263230C 263230B 263230A 268711 159830 354211 352118 35211A 158591 266010 330870 352111 Applied for 18K Model - 232 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 233 Exploded View 130412 359012 140570 130911A * Accessory : Front Panel Assembly 130911B 267110A 352150 - 233 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 234 Cassette Type - 4 way(TF chassis) 266090 249951 354211B 268711 354211A 263230C 159830 352118B 263230A 552111 263230B 352118A 158591 266010 352111 330870 - 234 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 235 Exploded View 130412 W0CZZ 346810 359012 W4056 130911B * Accessory: Front Panel Assembly 267110B 267110A 352150 130911A - 235 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 236 Cassette Type - 4 way(TH chassis) 266090 159830 268711 263230C 249951 130412 158591 354211 266010 552111 330870 263230A 352118 263230B - 236 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 237 Exploded View 130412 346810 359012 140570 130911B 130912A * Accessory : Front Panel Assembly 130912B 267110 352150 130911A - 237 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 238 Cassette Type - 4 way(TD chassis) 249951 266090 268714 159830 263230A 263230B 130411 263230C 354211 352118A 552111 352118B 330870 158591 266012 - 238 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 239 Exploded View 130411 W0CZZ 146811 268712 346810 152312 359012 140570 130911B 130912A 135313 135802 137211 267110A 130912B 130911A 267110B 352150B - 239 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 240 352150 268711B 263230B W4810 266000 359011 Applied for 249951 342800 Plasma Model Applied for 330780 Plasma Model 159830 266090 - 240 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 242: Outdoor Unit
Exploded View Outdoor Unit A2UW146FA2, A2UW166FA1 - 242 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 254 NOVEMBER, 2007 P/NO : 3828A20097W...

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LG AMNH096BTG0 Manuals

Model Number Nomenclature

Safety Precautions

Dimensions

Product Specifications

Installation

Operation

Control Devices and Function

Disassembly of the Parts (Indoor Unit)

Schematic Diagram

Troubleshooting Guide

(3-Way) Valve

Exploded View

Quick Links

Troubleshooting

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