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LG
Room Air Conditioner
INSTALLATION MANUAL
website http://www.lgservice.com
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.
• Please retain this installation manual for future reference
after reading it thoroughly.
LG
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Table of Contents
Related Manuals for LG LSU307HV2
Summary of Contents for LG LSU307HV2
- Page 1 website http://www.lgservice.com 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 2: Table Of Contents
Room Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements ❏ Four type "A" screws & plastic ❏ Level gauge Safety Precautions......4 anchors ❏ Screw driver ❏ Connecting cable ❏ Electric drill Introduction ........7 Symbols used in this manual..7 ❏... - Page 3 Wall Mounted Mini-Split System Single Zone INSTALLATION INSTRUCTIONS IMPORTANT! Please read this instruction sheet completely before installing the product. This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. WARNING •...
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Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. I Be sure to read before installing the air conditioner. I Be sure to observe the cautions specified here as they include important items related to safety. I Incorrect operation due to ignoring instruction will cause harm or damage. - Page 5 Safety Precautions Do not install the product at a place that there Use caution when unpacking and installing. is concern of falling down. • Otherwise, it may result in personal injury. • Sharp edges may cause injury. I Operation Do not share the outlet with Do not use the damaged Do not modify or extend the other appliances.
- Page 6 Safety Precautions I Installation Install the drain hose to ensure that drain Install the product so that the noise or hot can be securely done. wind from the outdoor unit may not cause any damage to the neighbors. • Otherwise, it may cause water leakage. •...
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Page 7: 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. NOTICE This symbol indicates special notes. Features Air Inlet Front Panel Air Filter Signal Receptor... -
Page 8: Installation
Installation Installation Read carefully, and then follow step by step. Installation Parts Installation plate 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 Gas-leak detector... -
Page 9: Installation Map
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 Operation Indication Lamps/ Vinyl tape (Wide) Signal Receptor •... -
Page 10: 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 11: Selecting The Best Location
Installation Select the best Location Indoor unit 1. Do not have any heat or steam near the unit. More than 2. Select a place where there are no obstacles 10cm(3.9in) More than in front of the unit. 20cm(7.9in) 3. Make sure that condensation drainage can be conveniently routed away. -
Page 12: Piping Length And Elevation
Installation Piping Length and Elevation Max. Max. Pipe Size Capacity Additional Refrigerant Standard Length Elevation B Length A m(ft) (Btu/h) g/m(oz/ft) LIQUID m(ft) m(ft) 5/8" 1/4" 7.5(25) 7(23) 30(98) 20(0.22) Indoor unit Outdoor unit Outdoor unit Oil trap Indoor unit Outdoor unit Indoor unit If piping length is more than 5m(16.4ft) -
Page 13: 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 14: 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. Cut the pipes and the cable. 1. Use the piping kit accessory or the pipes purchased locally. Copper Slanted Uneven Rough 2. -
Page 15: 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 16 Installation 4. Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks Connecting cable of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure Drain hose that the hooks are properly seated on the installation plate by moving it left and right.
- Page 17 Installation For left rear piping 1. Route the indoor tubing and the drain hose to the required piping hole position. Connecting 2. Insert the piping, drain hose, and the cable connecting cable into the piping hole. 3. Insert the connecting cable into the indoor unit. Drain pipe •...
- Page 18 Installation Wrap the insulation material around the Plastic bands Insulation material connecting portion. 1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap. 2.
- Page 19 Installation Installation Information. For left 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 right to left may cause damage to the tubing. Installation Manual 19...
- Page 20 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 Liquid side piping • When tightening the flare nut with torque (Smaller diameter) wrench, ensure the direction for tightening follows the arrow on the wrench.
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Page 21: Connecting The Cables
Installation Connecting the Cables Indoor Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually 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.) The earth wire should be longer than the common wires. - Page 22 Installation Outdoor 1. Remove the cover control from the unit by loosening the screw. Outdoor unit Connect the wires to the terminals on the Terminal block control board individually as the following. 2. Secure the cable onto the control board with the holder (clamper).
- Page 23 Installation Power supply cable How to connect wiring to the terminals For strand wiring Strand wire (1) Cut the wire end with a wire cutter or wire- cutting pliers, then strip the insulation to expose the strand wiring about 10mm(3/8"). Round (2) Using a screwdriver, remove the terminal terminal...
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Page 24: Checking The Drainage
Installation Checking the Drainage To check the drainage. 1. Pour a glass of water on the evaporator. Connecting area 2. Ensure the water flows through the drain drain hose hose of the indoor unit without any leakage and goes out the drain exit. Leakage checking Drain pan... -
Page 25: Forming The Piping
Installation Forming the Piping Form the piping by wrapping the Seal small openings Seal small openings connecting portion of the indoor unit around pipings with a around pipings with a with insulation material and secure it gum type sealer. gum type sealer. with two kinds of vinyl tapes. -
Page 26: 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 27 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 28: 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 29 Installation NOTICE If the actual pressure is higher than shown, the system is most likely over-charged, and 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.
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Page 30: Installation Guide At The Seaside
3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water... - Page 31 P/No.: MFL39817301...