LG LAU181CNW Installation Manual
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- Owner's manual (31 pages) ,
- Service manual (73 pages) ,
- Product manual (40 pages)
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Summary of Contents for LG LAU181CNW
- Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. LG LAU181CNW Owner's Manual Shop genuine replacement parts for LG LAU181CNW Find Your LG Air Conditioner Parts - Select From 2328 Models -------- Manual continues below --------...
- Page 2 LG Room Air Conditioner INSTALLATION MANUAL IMPORTANT • Please read this instruction manual completely before installing the product. • When the power cord is damaged, replacement should be performed by authorized personnel only. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only.
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Page 3: Table Of Contents
Room Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions......3 Four type "A" screws & plastic Level gauge anchors Screw driver Connecting cable Introduction ........9 Electric drill Symbols used in this manual..9 Hole core drill(ø2.76"(70mm)) Installation guide map Features ...........9 Horizontal meter... -
Page 4: Installation
Safety Precautions Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. Be sure to read before installing the air conditioner. Be sure to observe the cautions specified here as they include important items related to safety. Incorrect operation due to ignoring instruction will cause harm or damage. - Page 5 Safety Precautions Be cautious when For installation, always Do not install the product unpacking and installing contact the dealer or an on a defective installation the product. Authorized Service Center. stand. • Sharp edges could cause • There is risk of fire, electric •...
- Page 6 Safety Precautions Use a dedicated outlet for Grasp the plug to remove Do not place a heater or this appliance. the cord from the outlet. Do other appliances near the not touch it with wet hands. power cable. • There is risk of fire or •...
- Page 7 Safety Precautions Do not open the inlet grill of When the product is soaked Ventilate the product from the product during (flooded or submerged), time to time when operating operation. (Do not touch the contact an Authorized it together with a stove, etc. electrostatic filter, if the unit Service Center.
- Page 8 Safety Precautions Do not install the product Use two or more people to Do not install the product where the noise or hot air lift and transport the air where it will be exposed to from the outdoor unit could conditioner.
- Page 9 Safety Precautions Always insert the filter Do not insert hands or other Do not drink the water securely. Clean the filter objects through the air inlet drained from the unit. every two weeks or more or outlet while the air often if necessary.
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Page 10: Introduction
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 conditioner. This symbol indicates special notes. NOTICE Features NEO Plasma Filter Air Inlet Front Panel Air Filter... -
Page 11: Installation
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... -
Page 12: Installation Map
Installation Installation Map Installation parts you should purchase. NOTICE More than 3.9"(10cm) Sleeve More than Bushing-Sleeve 19.6"(50cm) Putty(Gum Type Sealer) (Left and right Bend the pipe as closely are identical) on the wall as possible, but be careful that it doesn't break. -
Page 13: Confirm The Refrigerant
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. -
Page 14: Selecting The Best Location
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 3.9"(10cm) 3. Make sure that condensation drainage can be conveniently routed away. -
Page 15: Piping Length And Elevation
Installation Piping Length and Elevation Pipe Size Capacity Standard Additional Max. Max. Elevation B Length A (Btu/h) Length Refrigerant (g/m) LIQUID 1/2"(Ø12.7) 1/4"(Ø6.35) 24.6ft(7.5m) 49.2ft(15m) 98.4ft(30m) Indoor unit Outdoor unit Outdoor unit Oil trap Indoor unit Outdoor unit Indoor unit 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. -
Page 16: Preparing Work For Installation
Installation Preparing Work for Installation Open panel front 1. Push the front panel backward and lift it up to remove the three 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. -
Page 17: Fixing Installation Plate
Installation Fixing Installation Plate The wall you select should be strong and solid Installation Plate enough 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. •... -
Page 18: Flaring Work
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 locally. Copper Slanted Uneven Rough 2. -
Page 19: Connecting The Piping
Installation Check 1. Compare the flared work with the figure by. Smooth all round 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... - Page 20 Installation 3. Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks Connecting of the rear top of the indoor unit with the cable upper edge of the installation plate.) Ensure that the hooks are properly seated on the Drain hose installation plate by moving it left and right.
- Page 21 Installation CAUTION: Installation Information For right piping. Follow the instruction below. Good case • Press on the upper side of clamp and unfold the tubing to downward slowly. Bad case • Following bending type from left to right may cause damage to the turbing. 20 Room Air Conditioner...
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Page 22: Connection Of The Drain Hose
Installation Connecting the Piping Connection Of The Drain Hose • The drain hose can be connected at two different positions. Use the most convenient position and, if necessary, exchange the position of the drain pan, rubber cap and the drain hose. Drain pan Rubber cap Drain hose... -
Page 23: Connecting The Cables
Installation Connecting the Cables 1. Remove the cover control from the unit by Wiring Diagram loosening the 3 screws. Connecting cable(Low voltage) b 2. Dismount caps on the conduit panel. Indoor Unit Outdoor Unit Terminal Terminal 3. Temporarily mount the conduit tubes on the (4P) (6P) conduit panel. - Page 24 Installation Connection method of the connecting cable(Example) 1. Dismount two-caps on the conduit panel. 2. Make a hole appropriate for the passage of connection cable through on cap by tool. (for low voltage line) 3. Pass the connecting cable through the hole. 4.
- Page 25 Installation CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.
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Page 26: Checking The Drainage
Installation Checking the Drainage To check the drainage. 1. Pour a glass of water on the evaporator. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. Drain piping 1. -
Page 27: Forming The Piping
Installation Forming the Piping Form the piping by wrapping the connecting portion of the indoor unit Seal small openings around pipings with a with insulation material and secure it gum type sealer. with two kinds of vinyl tapes. • If you want to connect an additional drain Taping hose, the end of the drain outlet should be Drain hose... -
Page 28: Air Purging
Installation Air Purging Air purging The air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. - Page 29 Installation Soap water method 1. Remove the caps from the 2-way and 3-way valves. Liquid side 2. Remove the service-port cap from the 3-way valve. 3. To open the 2-way valve turn the valve stem counterclockwise approximately 90°, wait for about 2~3 sec, and close it.
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Page 30: Charging
Installation Charging Each outdoor unit is factory charged (nameplate charge) for the evaporator as well as a 7.5m(25ft) line set. Any time a line set is used either shorter or longer then the nominal 7.5m(25ft) line set length the refrigerant charge has to be adjusted. Whether the line set is made shorter or longer you must adjust the charge based on how many ft of tubing are either added or removed based on 20g(0.22oz) of R-410A per meter(foot). -
Page 31: Panel Front Assembly
Installation Panel Front Assembly 1. First, Check the side cover assembly exactly, and fix the power cord in the bottom groove of cover side left. 2. Assemble connecting lead wire with controller, fix the upper part of panel front, and match the lower part of panel front. -
Page 32: Test Running
Installation Test Running 1. Check that all tubing and wiring are properly connected. 2. Check that the gas and liquid side service valves are fully open. Prepare remote controller 1. Remove the battery cover by pulling it according to the arrow direction. 2. - Page 33 Installation If the actual pressure is higher than shown, the system is most likely over-charged, and NOTICE charge should be removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added. PUMP DOWN This is performed when the unit is relocated or the refrigerant circuit is serviced.