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website http://www.lgservice.com
LG
LG Room
Air Conditioner
SERVICE MANUAL
MODELS: AS-H076PB/D/M/WL1
AS-H096PB/D/M/WL1
A-12AH series
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 LG Model Name...............................................................................................................................................3 Safety Precautions..........................................................................................................................................4 Dimensions ............................................................................................................................
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LG Model Name 2003 12 - 3456789 10 Code Type Code of Model Meaning 1 Producing Center, A~Z L: Chang-won R22 N: India Refrigerant A: Chang-won R410A Z: Brazil C: Chang-won R407C D: Indonesia T: China M: Mexico K: Turkey R22 V: Vietnam E: Turkey R410A S: Out Sourcing H: Thailand 2 Product Type A~Z S: Split Type Air Conditioner 3 Cooling/Heating/Inverter A~Z C: Cooling only V: AC Inverter C/O H: Heat pump N: AC Inverter H/P X: C/O + E/Heater Q: DC Inverter C/O Z: H/P + E/Heater W: DC Inverter H/P 4
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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 sure not to do. Be sure
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Safety Precautions Ensure that an installation Do not disassemble or repair Do not install the product at a frame of the outdoor unit is the product randomly. place that ther is concern of not damaged due to use for a falling down. long time. • It may cause injury or an accident. • It will cause a fire or electrical shock. • Otherwise, it may result in personal injury. Operation Use caution when unpacking Do not share the outlet with Do not use the damaged and installing. other appliances. p
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Safety Precautions Keep the flames away. Take the power plug out if neces- Do not use the power cord sary, holding the head of the plug near the heating tools. and do not touch it with wet hands. • Otherwise, it may cause a fire. • Otherwise, it may cause a fire or • Otherwise, it may cause a fire and electrical shock. electrical shock. Do not open the suction inlet Do not allow water to run into Never touch the metal parts of of the indoor/outdoor unit dur- electrical parts. the unit when re
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Safety Precautions Installation Install the drain hose to Install the product so that the Always inspect gas leakage ensure that drain can be noise or hot wind from the after the installation and repair securely done. outdoor unit may not cause of product. any damage to the neighbors. • Otherwise, it may cause water leak- • Otherwise, it may cause dispute with • Otherwise, it may cause the failure of age. the neighbors. product. Operation Keep level parallel in installing the product. Avoi
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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 may cause harm to the air conditioner. NOTICE This symbol indicates special notes. Indoor Unit Hanger Hole W D H Fix Hole Pipe Hole Model INDOOR UNIT Dimension W mm 570 H mm 568 D mm 137 8 Room Air Conditioner
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Dimensions Outdoor Unit L2 W L3 Gas side (3-way valve) Liquid side (2-way valve) MODEL AS-H076PB/D/M/WL1 DIM unit W mm 575 H mm 525 D mm 260 L1 mm 301 L2 mm 73 L3 mm 392 L4 mm 35 L5 mm 100 Service Manual 9 H L1 D L4 L5
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Dimensions L2 W L3 Gas side (3-way valve) Liquid side (2-way valve) MODEL AS-H096PB/D/M/WL1, AS-H126PB/D/M/WL1 DIM unit W mm 770 H mm 540 D mm 245 L1 mm 285 L2 mm 64 L3 mm 518 L4 mm 10 L5 mm 100 10 Room Air Conditioner H L1 D L4 L5
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Product Specifications Product Specifications Table-1 Model Name AS-H076PB/D/M/WL1 AS-H096PB/D/M/W/L1 A-12AH series Item Unit 7500 9200 12000 Cooling Capacity Btu/h 7700 9400 12200 Heating Capacity 1 1.2 1.5 Moisture Removal l/h 1Ø, 220-240V, 50Hz 1Ø, 220-240V, 50Hz 1Ø, 220-240V, 50Hz Power Source Ø, V, Hz Indoor 5.5 6.8 8.3 3 Air Circulation m /min Outdoor 20 26 26 Indoor 37 39 44 Noise Level dB (A)±3 Outdoor 48 48 48 685 840 1099 Cooling Input W 705 860 1200 He
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Installation Installation Selection of the Best Location Indoor unit More than 60cm • Do not have any heat or steam near the unit. • Select a place where there are no obstacles in More than 10cm More than 10cm front of the unit. • Make sure that condensation drainage can be con- veniently routed away. More Do not install near a doorway. More than 70cm than 60cm • Ensure that the space around the left and right of the unit is more than 50cm. The unit should be installed as high on the wall as po
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Installation Preparing Work for Installation Open front panel 1. Push the front panel backward and lift it up to remove the two screws. 2. As soon as you lift the both lower parts of panel front, you can hear the sound from panel front. At this moment panel front is separated 3. After pulling down this panel a bit, separate connecting wire from the product. Panel Front Connector Remove pipe cover and side cover 1. Remove two screws(for fixing pipe cover) 2. Pull up the side cover of desired con
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INSTALLATION GUIDE MAP INSTALLATION GU INSTAIIATION GUIDE MAP INSTALLATION GUIDE MAP INSTALLATION GUIDE MAP Installation Fixing the Indoor Unit 1. Attach an Installation guide map on the 6. 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 2. Make a hole with a diameter of 6mm and 7. Drill the pierted part as a diameter of 50mm depth of 30-35mm by piercing a screw for con
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Installation 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 Copper locally. Slanted Uneven Rough pipe 90° 2. Measure the distance between the indoor and the out- door unit. 3. Cut the pipes a little longer than measured distance. 4. Cut the cable 1.5m longer than the pipe length. Removing burrs Pipe 1. Completely remove a
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Installation Check Smooth all round Inside is shiny without scratches 1. Compare the flared work with the figure by. 2. If a flared section is defective, cut it off and do flaring = Improper flaring = work again. Inclined Surface Cracked Uneven damaged thickness Even length all round Connecting the Pipings Indoor Preparing the indoor unit's piping and drain hose for installation through the wall. Route the indoor tubing and the drain hose in the direction of rear left or right Drain hose Tape th
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Installation Connecting the pipings with the indoor unit and drain hose with drain pipe 1. Align the center of the pipings and sufficiently tighten the flare nut by hand. Indoor unit tubing Flare nut Pipes 2. Tighten the flare nut with a wrench. Outside diameter Torque Open-end wrench (fixed) mm inch kg.m Ø6.35 1/4 1.8 Flare nut Ø9.52 3/8 4.2 Ø12.7 1/2 5.5 Connection pipe Wrench Ø15.88 5/8 6.6 Ø19.05 3/4 6.6 Indoor unit tubing 3. When extending the drain hose at the indoor unit, install the drai
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Installation Outdoor Align the center of the pipings and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. Outdoor unit Gas side piping • When tightening the flare nut with torque wrench, (Bigger diameter) ensure the direction for tightening follows the arrow on the wrench. Liquid side piping (Smaller Outside diameter Torque diameter) mm inch kg.m Ø6.35 1/4 1.8 Ø9.52 3/8 4.2 Ø12.7 1/2 5.5 Ø15.88 5/8 6.6 Ø19.05 3/4 6.6 Torque w
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Installation Connecting the Cables to the Indoor Unit. • Connect the cables to the indoor unit by connecting the wires to the terminals on the control board dividually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.) • Before connecting the cables to the terminal block, remove the cables in the holder of the control cover and do it. CAUTION: • The above circuit diagram is subject to
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Installation Connecting the Cables to the Outdoor Unit 1. Remove the control cover from the unit by loos- Outdoor Unit ening the screw. Connect the wires to the terminals on the control Terminal block board individually. 2. Secure the cable onto the control board with the Over 5mm cord clamp. Connecting cable 3. Refix the control cover to the original position with the screw. Connecting cable 4. Use a recognized circuit breaker "A" between the power source and the unit. Cover control A disconn
