Service Manual
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website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
website http://www.lgservice.com LG Multi Type Air Conditioner SERVICE MANUAL MODEL • Indoor Unit: Room Type AMNH093D4A0(LMN090HE) AMNC093D4A0(LMN090CE) AMNH123DEA0(LMN120HE) AMNC123DEA0(LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNC093APM0(LMAN090CNS) AMNH123APM0(LMAN120HNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A3UH363FA0(LMU360HE) A3UC363FA0(LMU360CE) LG CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Service Manual
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Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit... indoor unit...33 Checking the Drainage, Forming the Pipings and Long Pipe Setting 34 Checking the drainage...34 Forming the piping...35 Air Purging and Evacuation ...36 Checking method ...36 Evacuation...37 Charging ...38 Test Running ...39 Operation ...40 Function of control...40 Function...2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ...3 Symbols Used in this Manual ...4 Safety Precautions...5 Dimensions...11 Indoor Unit... indoor unit...33 Checking the Drainage, Forming the Pipings and Long Pipe Setting 34 Checking the drainage...34 Forming the piping...35 Air Purging and Evacuation ...36 Checking method ...36 Evacuation...37 Charging ...38 Test Running ...39 Operation ...40 Function of control...40 Function...2-way, 3-way Valve ...78 Exploded View & Replacement Parts List 82 Indoor Unit ...82 Outdoor Unit ...86 2 Multi type Air Conditioner
Service Manual
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... is up to 24k Btu/h Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB 2.Heating Capacity is based on : indoor temp. 26.7°...
... is up to 24k Btu/h Symbols Used in this Manual This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. 4 Multi type Air Conditioner outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB 2.Heating Capacity is based on : indoor temp. 26.7°...
Service Manual
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... for a long time when the humidity is very high and a door or a window is risk of fire or electric shock. 6 Multi type Air Conditioner Do not place anything on the power cable. • There is left open. Do not install, remove, or reinstall the unit by yourself (customer). • ... not be pulled out or damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury.
... for a long time when the humidity is very high and a door or a window is risk of fire or electric shock. 6 Multi type Air Conditioner Do not place anything on the power cable. • There is left open. Do not install, remove, or reinstall the unit by yourself (customer). • ... not be pulled out or damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury.
Service Manual
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... for a long time, dis- Take care to ensure that Keep level even when age after installation or repair of product. age. 90° 8 Multi type Air Conditioner
... for a long time, dis- Take care to ensure that Keep level even when age after installation or repair of product. age. 90° 8 Multi type Air Conditioner
Service Manual
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It is a consumer air conditioner, not a precision refrigeration system. • There is risk of personal injury. Wax Thinner Service Manual 9 Safety Precautions Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. • It may cause a problem for ...etc. They are very sharp! • It may cause corrosion on the condenser and evaporator fins, could harm to cool air for long periods of air flow. s Operational Do not expose the skin directly to your neighbors. Do not touch the metal parts of property. Use...
It is a consumer air conditioner, not a precision refrigeration system. • There is risk of personal injury. Wax Thinner Service Manual 9 Safety Precautions Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. • It may cause a problem for ...etc. They are very sharp! • It may cause corrosion on the condenser and evaporator fins, could harm to cool air for long periods of air flow. s Operational Do not expose the skin directly to your neighbors. Do not touch the metal parts of property. Use...
Service Manual
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Do not insert hands or other health hazards. 10 Multi type Air Conditioner If the liquid from the product. Clean the filter every two...or ladder from the batteries gets onto your skin or clothes, wash it well with new ones of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause ...remote control with clean water. Replace the all batteries in batteries could cause burns or other objects through the air inlet or outlet while the product is operated. • There is not sanitary and could cause personal ...
Do not insert hands or other health hazards. 10 Multi type Air Conditioner If the liquid from the product. Clean the filter every two...or ladder from the batteries gets onto your skin or clothes, wash it well with new ones of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause ...remote control with clean water. Replace the all batteries in batteries could cause burns or other objects through the air inlet or outlet while the product is operated. • There is not sanitary and could cause personal ...
Service Manual
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of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A3UH363FA0(LMU360HE) 9,000~36,000 2637~10,550 2267~9071 9,000~36,000 2637~10,550 2267~9071 1320~3680 1410~3340 5.9~16.6 6.3~15.0 1,208/... name) Refrigerant charge Charge g(oz) Type Control Coil Tube Size (OD) inch(mm) Fins per inch No. Used / Diameter EA/inch(mm) Discharge Side / Top Air Circulation Outdoor CMM(CFM) Noise Level(H/L) at 230V Sound Press,1m dB(A) 1 SVC Valve Liquid inch(mm) Gas Dimensions W*H*D inch(mm) Net Weight Outdoor kg...
of innovation some specifications may be changed without notification. 14 Multi type Air Conditioner A3UH363FA0(LMU360HE) 9,000~36,000 2637~10,550 2267~9071 9,000~36,000 2637~10,550 2267~9071 1320~3680 1410~3340 5.9~16.6 6.3~15.0 1,208/... name) Refrigerant charge Charge g(oz) Type Control Coil Tube Size (OD) inch(mm) Fins per inch No. Used / Diameter EA/inch(mm) Discharge Side / Top Air Circulation Outdoor CMM(CFM) Noise Level(H/L) at 230V Sound Press,1m dB(A) 1 SVC Valve Liquid inch(mm) Gas Dimensions W*H*D inch(mm) Net Weight Outdoor kg...
Service Manual
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...more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Rooftop Installations: If the outdoor unit is not restricted. 2. niently routed away. 4. Outdoor unit 1. Take the air conditioner weight into account and select a place where noise and vibration are adequate for the ...unit. 3. sary damage to prevent unneces- Do not install near the unit. 2. Ensure that the spaces indicated by arrows from the air conditioner do not disturb neighbors. Use a stud finder to locate studs to the wall. Select a place so that heat radiation from the ...
...more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Rooftop Installations: If the outdoor unit is not restricted. 2. niently routed away. 4. Outdoor unit 1. Take the air conditioner weight into account and select a place where noise and vibration are adequate for the ...unit. 3. sary damage to prevent unneces- Do not install near the unit. 2. Ensure that the spaces indicated by arrows from the air conditioner do not disturb neighbors. Use a stud finder to locate studs to the wall. Select a place so that heat radiation from the ...
Service Manual
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...) A B C D S4 50 105 59 105 SE 65 110 85 110 D Installation plate B C Ø70mm Left rear piping A Ø70mm Right rear piping 18 Multi type Air Conditioner Measure the wall and mark the centerline. Installation Fixing Installation Plate(Standard Type) The wall you select should be done safely. Chassis Hook Installation Plate...
...) A B C D S4 50 105 59 105 SE 65 110 85 110 D Installation plate B C Ø70mm Left rear piping A Ø70mm Right rear piping 18 Multi type Air Conditioner Measure the wall and mark the centerline. Installation Fixing Installation Plate(Standard Type) The wall you select should be done safely. Chassis Hook Installation Plate...
Service Manual
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...;50mm hole core drill. Drill the piercing part for hanging product) 10mm INSTALLATION GU 9. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner INSTALLATION GUIDE MAP 7. Drive the fore plastic anchors into drilled points. Check the fixed product with the hole slightly slanted to No. 5 on this time...
...;50mm hole core drill. Drill the piercing part for hanging product) 10mm INSTALLATION GU 9. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner INSTALLATION GUIDE MAP 7. Drive the fore plastic anchors into drilled points. Check the fixed product with the hole slightly slanted to No. 5 on this time...
Service Manual
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Prepare the indoor unit's piping and drain hose for easy connection later. 3. If the drain hose is recommended. 22 Multi type Air Conditioner Drain hose Drain hose Tape Connecting pipe Drain hose Connecting cable Connecting cable Drain hose Loop Gas side piping Liquid side piping If a flared section ...
Prepare the indoor unit's piping and drain hose for easy connection later. 3. If the drain hose is recommended. 22 Multi type Air Conditioner Drain hose Drain hose Tape Connecting pipe Drain hose Connecting cable Connecting cable Drain hose Loop Gas side piping Liquid side piping If a flared section ...
Service Manual
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... extending the drain hose at the top of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain...
... extending the drain hose at the top of the indoor unit from the hooks at the indoor unit, install the drain pipe. 24 Multi type Air Conditioner Indoor unit Installation plate 8cm Spacer Indoor unit tubing Flare nut Pipes Wrench Indoor unit tubing Open-end wrench (fixed) Flare nut Connection pipe Drain...
Service Manual
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Drive two screws. 26 Multi type Air Conditioner First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Flaring Work and Connection of cover side left. 2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front Connector 3.
Drive two screws. 26 Multi type Air Conditioner First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Flaring Work and Connection of cover side left. 2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front Connector 3.
Service Manual
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...; Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Flaring Work and Connection of Piping REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Remove the battery cover ...from the remote controller if the air conditioner is not going to the arrow direction. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. ...
...; Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Flaring Work and Connection of Piping REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Remove the battery cover ...from the remote controller if the air conditioner is not going to the arrow direction. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. ...
Service Manual
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...the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between power source and the outdoor unit as the fixture. 30 Multi type Air Conditioner RECOMMAND: Provide a circuit breaker between Indoor Unit and Outdoor Unit Connect the cable to the outdoor unit should be longer than the common...according to the wiring diagram. • Connect the wires firmly, so that the color of the wires of Indoor Unit. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. are the same as those of the Outdoor Unit control cover. RECOMMAND: The ...
...the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between power source and the outdoor unit as the fixture. 30 Multi type Air Conditioner RECOMMAND: Provide a circuit breaker between Indoor Unit and Outdoor Unit Connect the cable to the outdoor unit should be longer than the common...according to the wiring diagram. • Connect the wires firmly, so that the color of the wires of Indoor Unit. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. are the same as those of the Outdoor Unit control cover. RECOMMAND: The ...
Service Manual
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... panel. High voltage Strand wire Round terminal Strip 10mm(3/8") Loosening the terminal block screw Low voltage Fastening the wire tightly Connecting cable 32 Multi type Air Conditioner A fire hazard may cause the terminal to overheat or result in unit malfunction.
... panel. High voltage Strand wire Round terminal Strip 10mm(3/8") Loosening the terminal block screw Low voltage Fastening the wire tightly Connecting cable 32 Multi type Air Conditioner A fire hazard may cause the terminal to overheat or result in unit malfunction.
Service Manual
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...; Press the Grille toward the chassis until it will be back into place. Service Manual 33 are the same as shown below. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse.
...; Press the Grille toward the chassis until it will be back into place. Service Manual 33 are the same as shown below. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse.
Service Manual
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... leakage Water leakage Waving Tip of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Drain piping 1. Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage ...
... leakage Water leakage Waving Tip of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Drain piping 1. Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage ...
Service Manual
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... system. Indoor unit Outdoor unit Manifold valve Pressure Lo Hi gauge Charge hose Nitrogen gas cylinder(in the system rises. 2. Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the refrigerant system have been properly connected and all joints of the tubing(both indoor and outdoor) and... gas cylinder to normal, disconnect the hose from both gas and liquid side service valves. Pressure in vertical standing position) 36 Multi type Air Conditioner Usually, the cylinder is reduced to this stage. Remove the service valve caps from the cylinder.
... system. Indoor unit Outdoor unit Manifold valve Pressure Lo Hi gauge Charge hose Nitrogen gas cylinder(in the system rises. 2. Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the refrigerant system have been properly connected and all joints of the tubing(both indoor and outdoor) and... gas cylinder to normal, disconnect the hose from both gas and liquid side service valves. Pressure in vertical standing position) 36 Multi type Air Conditioner Usually, the cylinder is reduced to this stage. Remove the service valve caps from the cylinder.