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ENGLISH

LG Room
Air Conditioner

INSTALLATION MANUAL

LG

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.

FRANÇAIS

ESPAÑOL

Summary of Contents for ARTCOOL LA181CNW

Page 1: ...y 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 FRANÇAIS ESPAÑOL ...

Page 2: ...inage 25 Forming the piping 26 Air purging 27 Charging 29 Panel front assembly 30 Test running 31 Four type A screws plastic anchors Connecting cable Installation guide map Pipes Gas side 1 2 12 7mm Liquid side 1 4 6 35mm Refer to page 13 Insulation materials Additional drain pipe Outer diameter 3 4 19mm Two type B screws Level gauge Screw driver Electric drill Hole core drill ø2 76 70mm Horizonta...

Page 3: ... symbol indicates the possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Safety Precautions Installation Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always...

Page 4: ...the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furnishings Take care to ensure that power cords could not be pulled ...

Page 5: ...mable gas or combustibles near the air conditioner There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur Wax Thinner When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on DO NOT use the telephone or turn switches on or off There is risk of explosion or fire Unplug t...

Page 6: ...liance before performing cleaning or maintenance There is risk of electrical shock When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage Always check ...

Page 7: ...ct airflow at room occupants Don t sit in the draft This could damage your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh d...

Page 8: ...not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the air conditioner Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispo...

Page 9: ... to hazards that may cause harm to the air conditioner This symbol indicates special notes NOTICE Introduction Symbols used in this Manual Features Signal Receptor Front Panel Air Inlet Air Discharge Power Cord Air Filter Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate NEO Plasma Filter ...

Page 10: ...tion plate Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas leak detector Thermometer Horizontal meter Flaring tool set Name Installation Parts Installation Tools Installation Read carefully and then follow step by step ...

Page 11: ...ty Gum Type Sealer Bend the pipe as closely on the wall as possible but be careful that it doesn t break Vinyl tape Wide To carry out the drainage test remove the air filters and pour water into the heat exchanger Apply after carrying out a drainage test Saddle More than 3 9 10cm More than 19 6 50cm Gas side piping Optional Part Liquid side piping Optional Part Additional drain pipe Vinyl tape Nar...

Page 12: ...ion rate of moisture 3 Composition R 410A R32 R125 50 50wt NOTE Never mix with other refrigerants 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A systems NOTICE Confirm The Refrigerant...

Page 13: ...it should have more than 28 70cm of space 3 Do not place animals and plants in the path of the warm air 4 Take the weight of the air conditioner into account and select a place where noise and vibration are minimum 5 Select a place where the warm air and noise from the air conditioner do not disturb neighbors Select the best Location More than 3 9 10cm More than 19 6 50cm More than 6 6ft 2m More t...

Page 14: ...Length A Additional Refrigerant g m Max Elevation B Standard Length Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B A Oil trap Outdoor unit Indoor unit 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 should be installed every 16 4 23 feets 5 7 meters ...

Page 15: ...Remove two screws for fixing cover pipe 2 Pull up the side cover of desired connecting direction then cover side is separated 3 Pick the pipe hole of the side cover CAUTION After removing the pipe hole cut the burr for safety When making pipe path through rear wall you don t need to pick the pipe hole NOTICE Drain hose junction 1 Remove the rubber stopple in the desired drain direction 2 Insert dr...

Page 16: ... important to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typically Drilling the hole through the wall for piping connections must be done safely Fixing Installation Plate Installation Plate Type A screw 9 45 240mm 9 45 240mm 2 36 60mm 2 36 60mm Ø 2 76 70mm Ø 2 76 70mm Drill the piping hole with a ø2 76 70mm hole core dr...

Page 17: ...ipe tube 2 Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work 1 Firmly hold copper pipe in a die in the dimension shown in the table bel...

Page 18: ... damage furniture or floors Foamed polyethylene or equivalent is recommended 1 Route the indoor tubing and the drain hose in the direction of rear left or right 2 Tape the tubing drain hose and the connecting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit Inclined Inside is shiny without scrat...

Page 19: ...Wrap the insulation material around the connecting portion 1 Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there may be no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape 3 Bundle the piping and drain hose together by wrapping them with vinyl tape for enough to cover whe...

Page 20: ...TION 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 ...

Page 21: ...60 Ø15 88 5 8 630 820 Ø19 05 3 4 980 1210 Outside diameter Torque Outdoor unit Liquid side piping Smaller diameter Gas side piping Bigger diameter Torque wrench Installation 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 Exchange if nece...

Page 22: ... running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc Every wire must be connected firmly No wire should be allowed to touch refrigerant tubing the compressor or any moving parts Power Supply NOTICE 1 Indoor Unit Outdoor Unit 2 3 4 1 2 3 4 5 6 G To branch circuit Ground Power supply a L1 L2 Connecting cable Low voltage b Terminal 4P Terminal 6P Wiring Diagra...

Page 23: ...ate How to connect wiring to the terminals For solid core wiring or F cable 1 Cut the wire end with a wire cutter of wire cutting pliers then strip the insulation to expose the solid wire about 25mm 15 16 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using pliers bend the solid wire to from a loop suitable for the terminal screw 4 Shape the loop wire properly place it o...

Page 24: ...fication of power source 4 Confirm that electrical capacity is sufficient 5 Confirm that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Always install an GFCI circuit breaker in a wet or mo...

Page 25: ...e drain hose of the indoor unit without any leakage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping like the following Downward slope Do not raise Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Water leakage Ditch Less than 1 96 50mm gap Water leakage ...

Page 26: ...n hose and connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent In cases where the outdoor unit is installed above the Indoor unit perform the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix the piping onto the wall by sad...

Page 27: ...auges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S I G Next tes...

Page 28: ...he Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 Replace t...

Page 29: ... 30ft line set is used 5 additional ft X 0 22 ounce per foot add 1 1 ounces of R 410A Important If you are ever uncertain of the unit charge reclaim evacuate and weigh in the correct charge using the unit nameplate charge adjusting for line sets longer or shorter than 7 5m 25ft Confirm the refrigerant R 410A Use manifold gauge and hose for R 410A Pipe Size Capacity Btu h Suction Evap Max length A ...

Page 30: ...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 3 Screw up panel front and suspend the hook of panel front in the groove Panel Front Connector Panel Front Assembly ...

Page 31: ... installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake 3 If the vibration of the unit is transmitted to the hose secure the unit with an anti vibration rubber Evaluation of the performance Operate the unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service val...

Page 32: ...gerant CAUTION Be sure to perform Pump Down procedure in the cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant 3 Close the liquid side service valve all the way 4 Turn on the unit s operating switch and start the cooling...

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