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Ceiling Cassette
Air Conditioner

INSTALLATION MANUAL

LG

IMPORTANT

• Please read this installation manual completely before 

installing the product.

• When the power cord is damaged, replacement work shall 

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.

Содержание ATNW246PLF0

Страница 1: ... installing the product When the power cord is damaged replacement work shall 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 ...

Страница 2: ... to the indoor unit and drain hose to drain pipe 19 Connecting the pipes to the Outdoor unit 19 Air purging 25 Test running 27 Installation guide at the seaside 29 Connecting cable Pipes Gas side Liquid side Hanging Bolt W 3 8 or M10 length 650mm Insulated drain hose Additional Drain hose Inner Dia 32mm Horizontal meter Screw driver Electric drill Hole core drill ø70mm Flaring Tools set Torque Wre...

Страница 3: ...cal work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or ...

Страница 4: ...nd electric shock Do not let electric parts of the product get wet It may cause There is risk of fire failure of the product or electric shock Be cautious that water could not enter the product There is risk of fire electric shock or product damage Turn the main power off when cleaning or maintaining the product There is risk of electric shock Do not store or use flammable gas or combustibles near...

Страница 5: ...se a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anyting on the product outdoor units There is risk of personal injury and failure of product Always ins...

Страница 6: ...lerts 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 Introduction Symbols used in this Manual Features Remote Controller Anti bacteria Air Outlet Air Inlet ...

Страница 7: ...stallation Installation Tools 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 ...

Страница 8: ...ted by arrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the...

Страница 9: ...based on standard length and maximum allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle Oil trap should be installed every 10 meters Model Additional refrigerant g m Pipe Size mm inch Length A m Elevation B m Gas Liquid Standard Max Standard Max ATNW246PLF0 15 88 5 8 9 52 3 8 5 50 5 30 30 ATNW306PLF0 15 88 5 8 9 52 3 8 5 50 5 30 30 ATNW428MLF0 ...

Страница 10: ...ses take the following actions Make sure that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam 2 Avoid installing air conditioner in such circumst...

Страница 11: ...AUTION Tighten the nut and bolt to prevent unit falling Remote Controller Installation Although the room temperature sensor is in the indoor unit the remote controller should be installed in such places away from direct sunlight and high humidity Installation of the remote controller Select places that are not splashed with water Select control position after receiving customer approval The room t...

Страница 12: ...t of the case in the direction to install before the installation 4 After locating the wired remote controller installation board at the desired location screw the unit firmly When there is a buried box install the wired remote controller board to fit the buried box Use the screw provided 5 After fixing the top part of the remote controller to the installation board as shown in beside picture pres...

Страница 13: ...he extension cable in the opposite direction the connector will not be connected Specification of extension cable 2547 1007 22 2 core 3 shield 5 or above Check whether the connector is connected correctly Connecting cable Indoor unit side HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES 1 Remove the battery cover from the remote controller Slide the cover according to the arrow direction 2 Insert ...

Страница 14: ...05RN F approved by HAR or SAA CAUTION 20mm GN YL 20mm GN YL NORMAL CROSS SECTIONAL Capacity A mm 24k 30k 2 5mm 42k 48k 2 5mm Capacity A mm 24k 30k 42k 48k 0 75mm 1mm Wiring Connection Open the control box cover and connect the Remote controller cord and Indoor power wires 1 Phase 24k 30k Remote Controller Cable Connecting Cable 3 Phase 42k 48k 1 L 2 N 3 1 L 2 N 1 L 2 N 3 Outdoor Unit Indoor Unit M...

Страница 15: ... REGULATION Main power source Switch box Refrigerant pipe Circuit Breaker Use circuit breaker or time delay fuse ELECTRICAL WIRING CONNECTING THE CABLE TO OUTDOOR UNIT 1 Remove the Cover control from the unit by loosening a screw Connect the wires to the terminals on the control board individually as following 2 Secure the cable onto the control board with the holder clamper 3 Refix the cover cont...

Страница 16: ...r connecting main Power cable Connecting cable terminal Power cord terminal Cord clamp Cord clamp Remove the side panel for wiring connection Use the cord clamp to fix the cord Earthing work Case 1 Terminal block of Outdoor Unit have mark Connect the cable of diameter 1 6mm2 or more to the earthing terminal provided in the control box and do earthing Case 2 Terminal block of Outdoor Unit don t hav...

Страница 17: ... Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again If the piping and the drain hose are in common direction bund...

Страница 18: ...mpleting the piping connection be sure to check if there is gas leakage in indoor and outdoor connection After completing the piping connection execute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the service ports of both the liquid and gas side valves CAUTION Use two wrenches and tighten with regular torque Outdoor unit Liquid side Flare...

Страница 19: ...1 Outside diameter Torque Continuous Torque wrench 250mm Align the center of the pipings and sufficiently tighten the flare nut by hand Tighten the flare nut with a wrench When extending the drain hose at the indoor unit install the drain pipe Indoor unit tubing Flare nut Pipings Torque wrench Indoor unit tubing Spanner fixed Connection pipe Flare nut mm inch kg m Ø6 35 1 4 1 8 2 5 Ø9 52 3 8 3 4 4...

Страница 20: ...n objects from entering Figure3 Plug the pipe through holes with putty or insulation material procured locally to stop up all gaps as shown in the figure 3 Insects or small animals entering the outdoor unit may cause a short circuit in the electrical box Knock out Base pan Forward Sideways Backward Downward Gas side piping Bigger Dia Liquid side piping Smaller Dia Drain hose Connecting wire Connec...

Страница 21: ...el 2 Remove the Corner covers of the panel 3 Fit the panel on the unit by inserting hooks as shown in picture 4 Insert two screws on diagonal corners of panel Do not tighten the bolts completely The fixing screws are included in the indoor unit box Check the alignment of panel with the ceiling Height can be adjusted using hanging bolts as shown in picture Insert the other two screws and tighten al...

Страница 22: ...t PCB The position marking on PCB is as Display connector CN DISPLAY Vane control connector CN VANE 1 2 8 Close the cover for control box 9 Fit the link on the panel as shown in picture The link is included in the front panel unit box 10 Attach the other side of link on the filter guide of inlet grille Install the air inlet grille and filter on the panel Link Link Filter guide Screw CN VANE 1 2 CN...

Страница 23: ...he air conditioner uses a drain pump to drain water Use the following procedure to test the drain pump operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is complete When the test is...

Страница 24: ...nt piping gas piping thick piping and drain piping add further 10mm to 30mm thickness material Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping HEAT INSULATION 1 Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands for the right pipings If you want to connect an additional drain hose the end of the drain out...

Страница 25: ...evacuating the system take a leak test for the piping and tubing between the indoor and outdoor unit Air purging with vacuum pump 1 Check that both liquid and gas pipe between indoor and outdoor have been properly connected 2 Remove the service valve cap from both the gas and liquid side on the outdoor unit 3 Confirm that both the liquid and gas side valve are set to the closed position 4 Connect ...

Страница 26: ...y a soft brush to check for leakage of the connecting points of the piping 5 If bubbles come out the pipes have leakage Gas side Liquid side Cap Hexagonal wrench 2 way valve Open 3 way valve Close Evacuation 1 If the system is found free from all leakages relive the nitrogen pressure by loosening the charge hose connector at nitrogen cylinder Disconnect the hose from cylinder when pressure reaches...

Страница 27: ... out temperature wind velocity wind volume voltage current presence of abnormal vibration and noise operating pressure piping temperature compressive pressure As to the structure and appearance check following items Is the circulation of air adequate Is the draining smooth Is the heat insulation complete refrigerant and drain piping Is there any leakage of refrigerant Is the remote controller swit...

Страница 28: ... fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting volta...

Страница 29: ...e 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 Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite si...

Страница 30: ...30 Ceiling Cassette Air Conditioner Memo ...

Страница 31: ...P No MFL42291410 ...

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