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) AMNH123DEA0 (LMN120HE) AMNC093D4A0(LMN090CE) AMNC123DEA0 (LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNH123APM0(LMAN120HNS) AMNC093APM0(LMAN090CNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) 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) AMNH123DEA0 (LMN120HE) AMNC093D4A0(LMN090CE) AMNC123DEA0 (LMN120CE) Art Cool Type AMNH093APM0(LMAN090HNS) AMNH123APM0(LMAN120HNS) AMNC093APM0(LMAN090CNS) AMNC123APM0(LMAN120CNS) • Outdoor Unit: A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE) 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...11 Outdoor Unit ...12 Product Specifications ...13 Installation ...15 Installation Parts...15 Installation Tools...15 Select the best location ......
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...11 Outdoor Unit ...12 Product Specifications ...13 Installation ...15 Installation Parts...15 Installation Tools...15 Select the best location ......
Service Manual
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... B : Blue, D : Wood, M : Metal, R : Mirror, W : White Chassis Name Indoor Unit Type Wall mounted split D : D- look type M : M- of Connectable Indoor Units Ex) A2U : Connectable max. 2 Indoor Units Service Manual 3 look type G : G- look type Artcool type A : standard/wide type D : Deluxe type B : Ceiling Concealed Duct V : Ceiling & Floor(Convertible) Outdoor Unit Electrical Rating 3: 1Ø, 208~230V, 60Hz...
... B : Blue, D : Wood, M : Metal, R : Mirror, W : White Chassis Name Indoor Unit Type Wall mounted split D : D- look type M : M- of Connectable Indoor Units Ex) A2U : Connectable max. 2 Indoor Units Service Manual 3 look type G : G- look type Artcool type A : standard/wide type D : Deluxe type B : Ceiling Concealed Duct V : Ceiling & Floor(Convertible) Outdoor Unit Electrical Rating 3: 1Ø, 208~230V, 60Hz...
Service Manual
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... or electric cause fire or electric shock shock. WARNING This symbol indicates the possibility of injury or damage to properties only. Service Manual 5 For electrical work, contact the Always ground the product. The seriousness is risk of fire or electric shock. •... Improper wiring or installation may • There is classified by the following instructions must be followed. or an Authorized Service Center. • There is risk of symbols used in this dealer, seller, a qualified electrician, appliance on a dedicated circuit. cuit...
... or electric cause fire or electric shock shock. WARNING This symbol indicates the possibility of injury or damage to properties only. Service Manual 5 For electrical work, contact the Always ground the product. The seriousness is risk of fire or electric shock. •... Improper wiring or installation may • There is classified by the following instructions must be followed. or an Authorized Service Center. • There is risk of symbols used in this dealer, seller, a qualified electrician, appliance on a dedicated circuit. cuit...
Service Manual
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... use the product in storm or hurricane. Do not touch(operate) the product with wet hands. • There is risk of fire and electric shock. Service Manual 7
... use the product in storm or hurricane. Do not touch(operate) the product with wet hands. • There is risk of fire and electric shock. Service Manual 7
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... or outlet of the product when removing the air filter. Do not install the product where it will be exposed to your neighbors. Wax Thinner Service Manual 9 Do not use harsh detergents, solvents, etc. Use two or more people to clean. Do not touch the metal parts of air flow. I Operational Do...
... or outlet of the product when removing the air filter. Do not install the product where it will be exposed to your neighbors. Wax Thinner Service Manual 9 Do not use harsh detergents, solvents, etc. Use two or more people to clean. Do not touch the metal parts of air flow. I Operational Do...
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Dimensions Indoor Unit 1. Art Cool Type Indoor Unit W D H Pipe Hole Hanger Hole Installation plate Fix Hole Dimension W H D Model mm mm mm Split Type S4 SE 9 kBtu/h 12 kBtu/h 840 895 270 282 153 165 ARTCOOL Type SP3 9 kBtu/h 12 kBtu/h 570 568 129 Service Manual 11 Split Type Indoor H D W Dimensions 2.
Dimensions Indoor Unit 1. Art Cool Type Indoor Unit W D H Pipe Hole Hanger Hole Installation plate Fix Hole Dimension W H D Model mm mm mm Split Type S4 SE 9 kBtu/h 12 kBtu/h 840 895 270 282 153 165 ARTCOOL Type SP3 9 kBtu/h 12 kBtu/h 570 568 129 Service Manual 11 Split Type Indoor H D W Dimensions 2.
Service Manual
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...) 353/719 (792) Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model No. Service Manual 13 Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan...
...) 353/719 (792) Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan motor Output Model No. Service Manual 13 Product Specifications Product Specifications Indoor Unit Indoor Unit Type Nominal Cooling Capacity # Model Nominal Heating Capacity # Air Circulation H/M/L Setting temperature range(cool/heat) Fan...
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Installation Parts Installation plate Type "B" screw Installation Type "A" screw and plastic anchor Remote Control Holder Installation Tools Figure Name Screw driver Electric Drill Measuring Tape, Knife Hole Core Drill Spanner Torque wrench Figure Name Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer, Level Flaring Tool Set Service Manual 15 Installation Read carefully, and then follow step by step.
Installation Parts Installation plate Type "B" screw Installation Type "A" screw and plastic anchor Remote Control Holder Installation Tools Figure Name Screw driver Electric Drill Measuring Tape, Knife Hole Core Drill Spanner Torque wrench Figure Name Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer, Level Flaring Tool Set Service Manual 15 Installation Read carefully, and then follow step by step.
Service Manual
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Service Manual 17 Installation Piping length and elevation Multi Piping Type Capacity(Btu/h) Max Elevation Max total length of Max length of each Min length of each ...
Service Manual 17 Installation Piping length and elevation Multi Piping Type Capacity(Btu/h) Max Elevation Max total length of Max length of each Min length of each ...
Service Manual
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... through the hole of desired connecting direction, then cover side is separated. 3. Pipe hole Adhesive Only one desiring direction Connecting part Drain hose rubber cap Service Manual 19 Panel Front Connector Remove cover pipe and cover side 1. As the following picture, Insert drain hose in the handle of drainage. 2. After pull down...
... through the hole of desired connecting direction, then cover side is separated. 3. Pipe hole Adhesive Only one desiring direction Connecting part Drain hose rubber cap Service Manual 19 Panel Front Connector Remove cover pipe and cover side 1. As the following picture, Insert drain hose in the handle of drainage. 2. After pull down...
Service Manual
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... pipe/tube. 2. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 A mm 0~0.5 0~0.5 Copper tube Handle "A" Bar Bar Yoke Cone Copper pipe Clamp handle Red arrow mark Service Manual 21 Measure the distance between the indoor and the outdoor unit. Burrs removal 1. Cut the cable 1.5m (5.0ft) longer than measured distance. Copper 3. Pipe Reamer...
... pipe/tube. 2. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 A mm 0~0.5 0~0.5 Copper tube Handle "A" Bar Bar Yoke Cone Copper pipe Clamp handle Red arrow mark Service Manual 21 Measure the distance between the indoor and the outdoor unit. Burrs removal 1. Cut the cable 1.5m (5.0ft) longer than measured distance. Copper 3. Pipe Reamer...
Service Manual
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... the rear piping housing section. Wrap the insulation material around the connecting portion. 1. Tighten the flare nut with vinyl tape Drain hose Vinyl tape(wide) Service Manual 23 Wrap the area which accommodates the rear piping housing section with vinyl tape so that the hooks are properly seated on the installation plate...
... the rear piping housing section. Wrap the insulation material around the connecting portion. 1. Tighten the flare nut with vinyl tape Drain hose Vinyl tape(wide) Service Manual 23 Wrap the area which accommodates the rear piping housing section with vinyl tape so that the hooks are properly seated on the installation plate...
Service Manual
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... unit piping Vinyl tape(narrow) Drain hose Pipe Vinyl tape(narrow) Wrap with vinyl tape. 3. Piping for passage through piping hole Connecting cable Drain hose Service Manual 25 Wrap the area which they fit into their slots(clicking sound). Ensure that the hooks are properly seated on the installation plate by wrapping...
... unit piping Vinyl tape(narrow) Drain hose Pipe Vinyl tape(narrow) Wrap with vinyl tape. 3. Piping for passage through piping hole Connecting cable Drain hose Service Manual 25 Wrap the area which they fit into their slots(clicking sound). Ensure that the hooks are properly seated on the installation plate by wrapping...
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Follow the instruction below. Bad case • Following bending type from right to left piping. For left may cause damage to downward slowly. Service Manual 27 Good case • Press on the upper side of Piping Installation Information. Flaring Work and Connection of clamp and unfold the tubing to the tubing.
Follow the instruction below. Bad case • Following bending type from right to left piping. For left may cause damage to downward slowly. Service Manual 27 Good case • Press on the upper side of Piping Installation Information. Flaring Work and Connection of clamp and unfold the tubing to the tubing.
Service Manual
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Outdoor Align the center of Piping Finally, tighten the flare nut with torque wrench until the wrench clicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. Flaring Work and Connection of the pipings and sufficiently tighten the flare nut by hand. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Torque kg.m 1.8 4.2 Outdoor unit A-UNIT Gas side piping B-UNIT Liquid side piping Torque wrench Service Manual 29
Outdoor Align the center of Piping Finally, tighten the flare nut with torque wrench until the wrench clicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. Flaring Work and Connection of the pipings and sufficiently tighten the flare nut by hand. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Torque kg.m 1.8 4.2 Outdoor unit A-UNIT Gas side piping B-UNIT Liquid side piping Torque wrench Service Manual 29
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... control from the indoor unit to the outdoor unit(size of withstanding temperature up to the terminals on the control board individually as the following. 2. Service Manual 31
... control from the indoor unit to the outdoor unit(size of withstanding temperature up to the terminals on the control board individually as the following. 2. Service Manual 31
Service Manual
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.... • Ensure that the color of the wires of the chassis. • Press the Grille toward the chassis until it will be back into place. Service Manual 33 Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Connect the wires to the indoor unit 1. are the same...
.... • Ensure that the color of the wires of the chassis. • Press the Grille toward the chassis until it will be back into place. Service Manual 33 Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. Connect the wires to the indoor unit 1. are the same...
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... electrical parts. In cases where the Outdoor unit is installed above the ground. Seal a small opening around the pipings with gum type sealer. Trap Trap Service Manual 35 Secure the taped piping along the exterior wall using saddle or equivalent. In cases where the outdoor unit is required to up . 2. Seal a small...
... electrical parts. In cases where the Outdoor unit is installed above the ground. Seal a small opening around the pipings with gum type sealer. Trap Trap Service Manual 35 Secure the taped piping along the exterior wall using saddle or equivalent. In cases where the outdoor unit is required to up . 2. Seal a small...
Service Manual
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...and stop the vacuum pump. Required time for test running. Finishing the job 1. Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with a vacuum pump. The air conditioner is now ready for evacuation when 30 gal/h vacuum pump is...of the manifold valve is reached, close the "Lo" knob of the pump. Manifold valve Pressure gauge Lo Hi Open Close Vacuum pump Service Manual 37 With a service valve wrench, turn the valve stem of gas side valve counter-clockwise to evacuate the tubing and indoor unit. This completes air purging with...
...and stop the vacuum pump. Required time for test running. Finishing the job 1. Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with a vacuum pump. The air conditioner is now ready for evacuation when 30 gal/h vacuum pump is...of the manifold valve is reached, close the "Lo" knob of the pump. Manifold valve Pressure gauge Lo Hi Open Close Vacuum pump Service Manual 37 With a service valve wrench, turn the valve stem of gas side valve counter-clockwise to evacuate the tubing and indoor unit. This completes air purging with...