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website http://www.lgservice.com
LG
LG
Room Air Conditioner
SERVICE MANUAL
MODELS: LAN091CNP (ASNC091F2G0)
LAU091CNP (ASUC091FUG0)
LAN121CNP (ASNC121F2G0)
LAU121CNP (ASUC121FUG0)
LAN091HNP (ASNH091F2G0)
LAU091HNP (ASUH091FUG0)
LAN121HNP (ASNH121F2G0)
LAU121HNP (ASUH121FUG0)
LA090CPI (ASNC091F2G0)
LA090CPO (ASUC091FUG0)
LA120CPI (ASNC091F2G0)
LA120CPO (ASUC091FUG0)
LA090HPI (ASNH091F2G0)
LA090HPO (ASUH091FUG0)
LA120HPI (ASNH121F2G0)
LA120HPO (ASUH121FUG0)
CAUTION
• BEFORE SERVICING THE UNIT, REA
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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 and For installation, always contact Do not install the product on a installing the product. the dealer or an Authorized defective installation stand. Service Center. • Sharp edges could cause injury. Be • There is risk of fire, electric shock, • It may cause injury, accident, or especially careful of the case explosion, or injury. damage to the product. edges and the fins on the con- denser and evaporator. Be sure the installation area Do not
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Safety Precautions Use a dedicated outlet for this Grasp the plug to remove the Do not place a heater or other appliance. cord from the outlet. Do not appliances near the power cable. touch it with wet hands. • There is risk of fire or electrical • There is risk of fire or electrical • There is risk of fire and electric shock. shock. shock. Do not allow water to run into Do not store or use flammable Do not use the product in a tight- electric parts. gas or combustibles near the air ly clos
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Safety Precautions Do not open the inlet grill of the When the product is soaked Ventilate the product from time product during operation. (Do (flooded or submerged), contact to time when operating it togeth- not touch the electrostatic filter, an Authorized Service Center. er with a stove, etc. if the unit is so equipped.) • There is risk of physical injury, • There is risk of fire or eletric • There is risk of fire or electrical electric shock, or product failure. shock. shock. Unplug the
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Safety Precautions Do not install the product where Use two or more people to lift Do not install the product where the noise or hot air from the out- and transport the air conditioner. it will be exposed to sea wind door unit could damage the (salt spray) directly. neighborhoods. • It may cause a problem for your • Avoid personal injury. • It may cause corrosion on the prod- neighbors. uct. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or ine
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Safety Precautions Always insert the filter securely. Do not insert hands or other Do not drink the water drained Clean the filter every two weeks objects through the air inlet or from the unit. or more often if necessary. outlet while the air conditioner is plugged in. • A dirty filter reduces the efficiency • There are sharp and moving parts • It is not sanitary and could cause of the air conditioner and could that could cause personal injury. serious health issues. cause product malfunc
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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 Hanger Hole W D H Fix Hole Pipe Hole Model INDOOR UNIT Dimension W mm(inch) 600(23.6) H mm(inch) 600(23.6) D mm(inch) 146(5.7) Service Manual 9
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Dimensions Outdoor Unit L2 W L3 Gas side (3-way valve) Liquid side (2-way valve) MODEL 9k, 12k Models DIM unit W mm 770(30.3) H mm 540(21.3) D mm 245(9.6) L1 mm 285(11.2) L2 mm 64(2.5) L3 mm 518(20.4) L4 mm 10(0.4) L5 mm 100(3.9) 10 Room Air Conditioner H L1 D L4 L5
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Product Specifications Product Specifications AS-C091F2G0(LA091CNP) AS-C121F2G0(LA121CNP) AS-H091F2G0(LA091HNP) AS-H121F2G0(LA121HNP) Models AS-C091F2G0(LA090CP) AS-C121F2G0(LA120CP) AS-H091F2G0(LA090HP) AS-H121F2G0(LA120HP) Cooling Capacity kW 2.87 3.37 2.87 3.37 (Min~Rating~Max) Btu/h 9,800 11,500 9,800 11,500 Heating Capacity kW - - 2.87 3.37 (Min~Rating~Max) Btu/h - - 9,800 11,500 Power Input Cooling/Heating W 980 1,100 980/980 1,100/1,100 Running Current Cooling/Heating A 9.4 10 9.4/9.4
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Installation Installation Read carefully, and then follow step by step. Installation Parts Installation guide map Type "A" screw and plastic anchor Type "B" screw Remote control holder Installation Tools Figure Name Figure Name Screw driver Ohmmeter Electric drill Hexagonal wrench Measuring tape, Knife Ammeter Hole core drill Leak detector Thermometer, Spanner Horizontal meter Torque wrench Flaring tool set 12 Room Air Conditioner
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Installation Installation Map NOTICE Installation parts you should purchase. More than More than More than 3.9"(10cm) 3.9"(10cm) 7.9"(20cm) More than 19.6"(50cm) (Left and right Sleeve are identical) Bushing-Sleeve Putty(Gum Type Sealer) Bend the pipe as close as possible on the wall but be careful so that it may not break. Vinyl tape (Wide) • To carry out the drainage test, remove the air filter and pour water into the heat exchanger. Saddle • Apply after carrying out a drain
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Installation 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=
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Installation Select the best Location Indoor unit 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 More than 7.9"(20cm) 3. Make sure that condensation drainage can be conve- 19.6"(50cm) niently routed away. 4. Do not install near a doorway. 5. Ensure that the interval between a wall and the left More than (or right) of the unit is more than 19.6"(50cm). The More than unit should be installed as high as possible on
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Installation Piping Length and Elevation Standard Max. Max. Additional Pipe Size Capacity Length Elevation length Refrigerant (Btu/h) Suction Evap m(ft) B m(ft) A m(ft) g/m(oz/ft) 9k, 12k Ø12.7mm(1/2") Ø6.35mm(1/4") 7.5(25) 7.5(25) 15(49) 20(0.22) Indoor unit Outdoor unit Outdoor unit A A Oil trap B Indoor unit Outdoor unit Indoor unit B B If piping length is more than 16.4ft(5m) CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability. Oil trap s
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Installation Preparing Work for Installation Open panel front 1. Pull the upper part of the front panel. 2. Lift up the panel. 3. To detach the front panel, remove the two screws at the lower part. 4. Detach the front panel from the body. 5. To detach the panel, disconnect the connector at the upper part. Panel Front Connector Cover pipe and cover side remove 1. Please remove the screw of the center tuning cover. 2. Pull up the side cover of desired connecting direction, then cover side is sep
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INSTALLATION GUIDE MAP INSTALLATION GU INSTAIIATION GUIDE MAP INSTALLATION GUIDE MAP INSTALLATION GUIDE MAP Installation Fixing Indoor Unit 1. Attach an Installation guide map on the 2. Look at suited horizon by horizontal desired surface. meter on the horizontal setting line, and INSTALLATION GUIDE MAP fix lightly the map by adhesive tape. Horizontality 3. Make a hole with a diameter of 6mm and 4. Drill the pierted part as a diameter of 50mm depth of 30-35mm by piercing a screw for connect
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Flaring work and connection of piping Flaring work and connection of piping Flaring Work Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. Cutting the pipes and the cable. 1. Use the piping kit accessory or the pipes purchased locally. 2. Measure the distance between the indoor and the Copper Slanted Uneven Rough pipe outdoor unit. 90° 3. Cut the pipes a little longer than measured distance. 4. Cut the cable 4.9ft(1.5m) lo
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Flaring work and connection of piping Check Smooth all round 1. Compare the flared work with the figure by. Inside is shiny without scratches 2. If a flared section is defective, cut it off and do flaring work again. = Improper flaring = Inclined Surface Cracked Uneven damaged thickness Even length all round Connecting the Piping Indoor Preparing the indoor unit's piping and drain hose for installation through the wall. 1. Route the indoor tubing and the drain hose in the direction of rear left
