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website http://www.lgservice.com
LG
LG
Room Air Conditioner
SERVICE MANUAL
MODELS: LSN090CE LSU090CE
LSN120CE LSU120CE
LSN180CE LSU180CE
LSN240CE LSU240CE
LSN090HE LSU090HE
LSN120HE LSU120HE
LSN180HE LSU180HE
LSN240HE LSU240HE
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
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Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions..........................................................................................................................................3 Dimensions......................................................................................................................................................9 Symbols Used in this Manual........................................................................................................
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Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. Meanings of symbols used in this manual are as shown below. Be su
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Safety Precautions Be cautious when unpacking For installation, always contact Do not install the product on a and installing the product. the dealer or an Authorized defective installation stand. Service Center. • Shape edges could cause injury. • There is risk of fire, electric • It may cause injury, accident, or Be especially careful of the sharp shock, explosion, or injury. damage to the product. edges. Be sure the installation area Install the indoor unit on the Do not handle the pipe by
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Safety Precautions Do not place a heater or other Do not let the air conditioner run Do not store of use flammable appliances near the power for a long time when the humidi- gas or combustibles near the air cable. ty is very high and a door or a conditioner. window is left open. • There is risk of fire, failure of the • Moisture may condense and wet • There is risk of fire or product fail- product, and/or electric shock. or damage furnishings. ure. Do not use the product in a When flammable g
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Safety Precautions Ventilate the product from time Unplug the appliance before When the product is not be used to time when operating it togeth- performing cleaning or mainte- for a long time disconnect the er with a stove, etc. nance. power supply plug or turn off the breaker. • There is risk of fire or electrical • There is risk of electric shock. • There is risk of product damage shock. or failure, or unintended opera- tion. Installation Take care to ensure that nobody Do not insert hand
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Safety Precautions Operation Use two or more people to lift Do not install the product where Do not direct airflow at room and transport the air conditioner it will be exposed to sea wind occupants. (salt spray) directly. • Avoid personal injury. • It may cause corrosion in the • This could damage your health. product. Corrosion, particularly on the condenser and evaporator fins, could cause product mal- function or inefficient operation. Do not use the product for special Do not block the i
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Dimensions Do not drink the water drained Use a firm stool or ladder when Replace all the batteries in the from the unit. cleaning or maintaining the air remote. conditioner. • Be careful and avoid personal • There is risk of fire or explosion. • It is not sanitary and could cause injury. serious health issues. Disuse Do not recharge or disassemble the batteries. Do If the liquid from the batteries gets onto your skin not dispose of batteries in a fire. or clothes, wash it well with clean wate
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Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE Indoor Unit H D W Installation plate Model 9 Btu Series 9 Btu Series 12 Btu Series (C/O) (H/P) Dimension W mm(inch) 840(33.1) 894(35.2) 894(35.2) H mm(inch) 270(10.6) 295(11.6) 295(11.6) D mm(inch) 153(6.0) 165(6.5) 165(6.5) Service Manual 9
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Dimensions H D W Installation plate Model 18 Btu Series 24 Btu Series Dimension W mm(inch) 1090(42.9) 1090(42.9) H mm(inch) 300(11.8) 300(11.8) D mm(inch) 178(7.0) 178(7.0) 10 Room Air Conditioner
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Dimensions Outdoor Unit 1. 9k, 12k L2 W L3 Gas side (3-way valve) Liquid side (2-way valve) MODEL 9k, 12k DIM unit W mm(inch) 770(30.3) H mm(inch) 540(21.3) D mm(inch) 245(9.6) L1 mm(inch) 287(11.3) L2 mm(inch) 64(2.5) L3 mm(inch) 518(20.4) L4 mm(inch) 10(0.4) L5 mm(inch) 100(3.9) Service Manual 11 L1 H D L4 L5
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Dimensions 2. 18k, 24k W L6 L5 L7 L8 MODEL 18k, 24k DIM W mm(inch) 870(34.3) H mm(inch) 655(25.8) D mm(inch) 320(12.6) L1 mm(inch) 370(14.6) L2 mm(inch) 25(1.0) L3 mm(inch) 630(24.8) L4 mm(inch) 25(1.0) L5 mm(inch) 546(21.5) L6 mm(inch) 162(6.4) L7 mm(inch) 162(6.4) L8 mm(inch) 54(2.1) L9 mm(inch) 74.5(2.9) L10 mm(inch) 79(3.1) 12 Room Air Conditioner H L4 L3 L2 D L10 L9 L1
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Introduction Introduction Symbols Used In This Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air condi- tioner. NOTICE This symbol indicates special notes. Features Air Inlet Air Filter Front Panel Signal Receptor Air Intake Vents Connecting Wires Connecting Wires Air Intake Vents Piping Piping Air Outlet Drain Hose Vents Drain Hose Air Outlet Vents Base Plate Base Plate Service Manual 13
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Installation Installation Read carefully, and then follow step by step. Installation Parts Installation plate Type "A" screw and plastic anchor Remote Control Holder Type "B" screw Installation Tools Figure Name Figure Name Screw driver Ohmmeter Electric Drill Hexagonal wrench Measuring Tape, Knife Ammeter Hole Core Drill Gas Leak Detector Thermometer, Spanner Level Torque wrench Flaring Tool Set 14 Room Air Conditioner
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Installation Installation Map NOTICE Installation parts you should purchase. Installation Plate Sleeve Bushing-Sleeve Putty(Gum Type Sealer) Bend the pipe as closely on the wall as possible, but be careful that it doesn't break. Air Discarge Vertical Air deflector Operation Indication Lamps/ Vinyl tape(Wide) Signal Receptor • Apply after carrying out a drainage test. Forced Operation Button • To carry out the drainage test, remove the air filters Saddle and pour water into the heat
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Confirm The Refrigerant 1. Check the quality label on the indoor and outdoor unit. 2. Make certain that the refrigerant is R-410A. NOTICE THIS PRODUCT CONTAINS R-410A REFRIGERANT 1) Different compressor oil - R-410A(Polyol ester) / R-22(Mineral). - Do not mix the existing mineral oil. - Do not apply used pipe, tools and gauges covered with the existing mineral oil. 2) Absorption of moisture -Compressor’s oil has the high absorption rate of moisture. 3) Composition - R-410A(R32:R125=50:50wt%). NO
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Select The Best Location 6. Use a stud finder to locate studs to prevent Indoor unit unnecessary damage to the wall. 1. Do not have any heat or steam near the unit. 2. Select a place where there are no obstacles in front of the unit. More than 3. Make sure that condensation drainage can be 12cm(4.7in) More than conveniently routed away. 30cm(11.8in) 4. Do not install near a doorway. More than 30cm(11.8in) 5. Ensure that the space around the left and right More than 8ft(2.4m) of the unit is mor
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Piping Length And Elevation Standard Max. Max. Pipe Size Capacity Additional Refrigerant Length Elevation length g/m(oz/ft) (Btu/h) Suction Evap m(ft) B m(ft) A m(ft) 9k(C/O) 3/8" 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22) 9k(H/P), 12k 1/2" 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22) 18k(C/O) 1/2" 1/4" 7.5(25) 15(49) 30(98) 20(0.22) 18k(H/P), 24k 5/8" 1/4" 7.5(25) 15(49) 30(98) 30(0.32) Outdoor unit Outdoor unit A Oil trap Indoor unit Indoor unit B B In case more than 5m(16.4ft) • Capacity is based on stand
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How To Mount Installation Plate The wall you select should be strong and solid enough Installation Plate to prevent vibration 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts. Chassis • Mount the installation plate horizontally by aligning the Hook centerline using a level. Type “A” 2. Measure the wall and mark the centerline. It is also important to use caution concerning the location of the instal- lation plate-routing
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Flaring Work Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the follow- ing procedure. Cut the pipes and the cable. 1. Use the piping kit accessory or the pipes purchased locally. Copper 2. Measure the distance between the indoor and the out- Slanted Uneven Rough pipe 90° door unit. 3. Cut the pipes a little longer than measured distance. 4. Cut the cable 1.5m(59.1in) longer than the pipe length. Burrs removal Pipe 1. Completely remove all burrs
