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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... connected a indoor unit 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. outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB 3.The total ability of electric shock. outdoor temp. 35°C(95°F)DB, 23.9°...
... connected a indoor unit 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. outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB 3.The total ability of electric shock. outdoor temp. 35°C(95°F)DB, 23.9°...
Service Manual
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... damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury. Do not place anything on a Be sure the installation area defective installation stand. Safety Precautions Do not modify or extend...risk of fire, electric shock, explosion, or injury. Be especially careful of fire, electric shock, explosion, or injury. Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is risk of the case edges and the fins...
... damaged during operation. • Moisture may cause injury, accident, or damage to the product. • If the base collapses, the air conditioner could cause injury. Do not place anything on a Be sure the installation area defective installation stand. Safety Precautions Do not modify or extend...risk of fire, electric shock, explosion, or injury. Be especially careful of fire, electric shock, explosion, or injury. Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is risk of the case edges and the fins...
Service Manual
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... drain hose to time when operating it together with a stove, etc. • There is risk of fire or electric shock. age. 90° 8 Multi type Air Conditioner Safety Precautions Do not open the inlet grill of the product When the product is soaked Be cautious that water could result in personal injury...
... drain hose to time when operating it together with a stove, etc. • There is risk of fire or electric shock. age. 90° 8 Multi type Air Conditioner Safety Precautions Do not open the inlet grill of the product When the product is soaked Be cautious that water could result in personal injury...
Service Manual
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... art, etc. Do not block the inlet or outlet of the product when removing the air filter. Wax Thinner Service Manual 9 Corrosion, particularly on the product. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of fire, electric shock, or... damage to your neighbors. Safety Precautions Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods...
... art, etc. Do not block the inlet or outlet of the product when removing the air filter. Wax Thinner Service Manual 9 Corrosion, particularly on the product. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of fire, electric shock, or... damage to your neighbors. Safety Precautions Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods...
Service Manual
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...product is operated. • There is risk of personal injury and failure of product. • A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause • Be careful and avoid personal serious... health issues. Do not insert hands or other health hazards. 10 Multi type Air Conditioner Do not mix old and new batteries or different types of fire or explosion Do not recharge or disassemble the batteries. when cleaning ...
...product is operated. • There is risk of personal injury and failure of product. • A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause • Be careful and avoid personal serious... health issues. Do not insert hands or other health hazards. 10 Multi type Air Conditioner Do not mix old and new batteries or different types of fire or explosion Do not recharge or disassemble the batteries. when cleaning ...
Service Manual
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... Type No. Installation Indoor Unit~Outdoor Unit m Height Difference Indoor Unit~Indoor Unit m Packing Dimension W*H*D inch(mm) Stuffing Quantity 20/40ft A3UC363FA0(LMU360CE) 9,000~36,000 2637~10,550 2267~9071 1320~3680 5.9~16.6 1,208/230,60 3 Rotary GK141K 2 Pole Induction(PSC) 1 1430 350...23.9°C(75°F)WB -Interconnecting Piping Length 7.5m -Level Difference 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~...
... Type No. Installation Indoor Unit~Outdoor Unit m Height Difference Indoor Unit~Indoor Unit m Packing Dimension W*H*D inch(mm) Stuffing Quantity 20/40ft A3UC363FA0(LMU360CE) 9,000~36,000 2637~10,550 2267~9071 1320~3680 5.9~16.6 1,208/230,60 3 Rotary GK141K 2 Pole Induction(PSC) 1 1430 350...23.9°C(75°F)WB -Interconnecting Piping Length 7.5m -Level Difference 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~...
Service Manual
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...2m More than 50cm more than 30cm (11.8 inch) more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Installation Select the best location Indoor unit 1. sary damage to prevent unneces- If an awning is built over the unit to level the unit. Do... rooftop mounting. niently routed away. 4. Ensure the spaces indicated by arrows around front, back and side of the warm air. 4. Select a place so that heat radiation from the air conditioner do not disturb neighbors. Do not install near the unit. 2. Select a place where there are no obstacles in the...
...2m More than 50cm more than 30cm (11.8 inch) more than 30cm (11.8 inch) more than 70cm (27.6 inch) 16 Multi type Air Conditioner Installation Select the best location Indoor unit 1. sary damage to prevent unneces- If an awning is built over the unit to level the unit. Do... rooftop mounting. niently routed away. 4. Ensure the spaces indicated by arrows around front, back and side of the warm air. 4. Select a place so that heat radiation from the air conditioner do not disturb neighbors. Do not install near the unit. 2. Select a place where there are no obstacles in 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
...) 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
Service Manual
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... the fixed product with the hole slightly slanted to No. 5 on the desired surface. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner
... the fixed product with the hole slightly slanted to No. 5 on the desired surface. Horizontality INSTALLATION GUIDE MAP Indoor WALL Outdoor 5-7mm (0.2~0.3") 20 Multi type Air Conditioner
Service Manual
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If a flared section 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 Inclined Surface Cracked ...
If a flared section 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 Inclined Surface Cracked ...
Service Manual
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.... 1 2 Connecting cable Drain pipe 5. Align the center 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...
.... 1 2 Connecting cable Drain pipe 5. Align the center 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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Flaring Work and Connection of cover side left. 2. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Drive two screws. 26 Multi type Air Conditioner 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.
Flaring Work and Connection of cover side left. 2. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of Piping s Panel Assembly(Art Cool Type only) 1. Drive two screws. 26 Multi type Air Conditioner 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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..., and performance. • Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Insert the two batteries. • Be sure that the (+) and (-) directions are correct. • Be sure that both batteries are new. 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.
..., and performance. • Romove the batteries from the remote controller. • Slide the cover according to be used for some long time. 28 Multi type Air Conditioner Insert the two batteries. • Be sure that the (+) and (-) directions are correct. • Be sure that both batteries are new. 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.
Service Manual
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... wires according to the wiring diagram. RECOMMAND: The power cord connected to the outdoor unit should be longer than the common wires. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. are the same as those of the outdoor unit and the terminal No. RECOMMAND: Provide a ... wire should be pulled out easily. • Connect the wires according to color codes by using tie wrap as the fixture. 30 Multi type Air Conditioner AWG14 Line voltage (208~230V) GN/YL 20mm The power connecting cable connected to change without notice.
... wires according to the wiring diagram. RECOMMAND: The power cord connected to the outdoor unit should be longer than the common wires. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. are the same as those of the outdoor unit and the terminal No. RECOMMAND: Provide a ... wire should be pulled out easily. • Connect the wires according to color codes by using tie wrap as the fixture. 30 Multi type Air Conditioner AWG14 Line voltage (208~230V) GN/YL 20mm The power connecting cable connected to change without notice.
Service Manual
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... connected. 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 Connecting the Cable between the surface of the connection cable and cap. (7)Finally, Fix the cap to the conduit panel. WARNING: Loose wiring may also...
... connected. 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 Connecting the Cable between the surface of the connection cable and cap. (7)Finally, Fix the cap to the conduit panel. WARNING: Loose wiring may also...
Service Manual
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... and the unit as those of the chassis. • Press the Grille toward the chassis until it will be back into place. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse.
... and the unit as those of the chassis. • Press the Grille toward the chassis until it will be back into place. Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse.
Service Manual
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... Waving Tip of water on the evaporator. 2. Pour a glass of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage To check...
... Waving Tip of water on the evaporator. 2. Pour a glass of drain hose dipped in water Water leakage Ditch Less than 50mm gap 34 Multi type Air Conditioner Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage To check...
Service Manual
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Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the system rises. 2. Pressure in the refrigerant system have been properly connected and all joints of parts in a liquid state, the ... avoid nitrogen entering the refrigerant system in the refrigeration system. Operating current rises. 3. After the system is used in vertical standing position) 36 Multi type Air Conditioner Remove the service valve caps from the cylinder. NOTICE : Leakage test shoud be kept closed at the nitrogen cylinder. Leakage test • Connect the manifold...
Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the system rises. 2. Pressure in the refrigerant system have been properly connected and all joints of parts in a liquid state, the ... avoid nitrogen entering the refrigerant system in the refrigeration system. Operating current rises. 3. After the system is used in vertical standing position) 36 Multi type Air Conditioner Remove the service valve caps from the cylinder. NOTICE : Leakage test shoud be kept closed at the nitrogen cylinder. Leakage test • Connect the manifold...