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LG LSN5AU2A, Owner'S Manual, Page: 1 / 44

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LG LSN5AU2A Owner'S Manual Download Page 1

ROOM AIR 
CONDITIONER

For Split AC Domestic Models

TYPE : WALL MOUNTED

P/No. MFL39754865_V4

MFL39754865

Regd. Office: LG Electronics India Pvt. Ltd.

, A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017

Please read this manual carefully before operating

your set and retain it for future reference.

Summary of Contents for LSN5AU2A

Page 1: ...ls TYPE WALL MOUNTED P No MFL39754865_V4 MFL39754865 Regd Office LG Electronics India Pvt Ltd A Wing 3rd Floor D 3 District Center Saket New Delhi 110017 Please read this manual carefully before operating your set and retain it for future reference ...

Page 2: ... the air conditioner automatically MAINTENANCE Cleaning the air filter Cleaning the anti allergy filter Cleaning the plasma filter TROUBLESHOOTING Self diagnosis function Before requesting service Contact the authorized service technician for repair or maintenance of this unit Please install your air conditioner by company authorized service franchisee authorized service and sales dealer The air c...

Page 3: ...3 reduce the cooling dehumidi cation functions Avoid excessive cooling Refer page no 19 and 20 details of owner s manual ...

Page 4: ...4 SAFETY INSTRUCTIONS ...

Page 5: ...ditioner label Failure to do so may result in explosion or fire SAFETY INSTRUCTIONS Dos and Don ts Do not install the air conditioner on an unstable surface or where there may be a danger of unit falling It may result in death serious injury or product failure Only use components that are approved by the manufacturer and do not repair or modify them Failure to do so may result in electric shock ef...

Page 6: ...s Don ts ON OFF When there is a gas leak before using air conditioner again contact authorized service person for verification and repair Failure to do so may result in explosion or fire Do not block the inlet or outlet of air flow It may effect product performance or serious injury or health complications effect product performance water leakage or product failure to not cause neighbours neighbou...

Page 7: ...more detailed information please visit http www lg com vius iqjkus midj k dk fuiVku bZ vif k V fu e ds vuqlkj 1 tc bl dkVs x s ifg s okys fcu dk fpº u fdlh midj k vkSj blds vksisjVj dh iqfLrdk ds lkFk layXu gksrk gSa rks bldk eryc gS fd bls bZ vif k V izca ku vkSj gFkkyu fu e 2011 ds vUrxZr lfEefyr fd k x k gS vkSj bls uohuhdj k fo kVu vkSj fuiVku ds fy cuk k x k gSA 2 djsa d midj k dks flQZ vf kd...

Page 8: ... together with stoves or other heating devices 3 Do not use this air conditioner for non specified special purpose e g preserving precision devices food pets plants or art objects Such use may damage your properties Cleaning and Maintenance 1 Do not touch the metal parts of the unit when removing the filter Injury can occur 2 Do not use water to clean inside the air conditioner Exposure to water c...

Page 9: ...nditioner This symbol indicates special notes Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate Indoor unit Outdoor unit This appliance should be installed in accordance with national wiring regulations This guide acts as a guide to help to explain product features Front Panel Air Filter Air Inlet Signal Receiver WARNING Features ...

Page 10: ...ing the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated and the wall receptacle is grounded through the house wiring If you have any doubt whether the air conditioner is properly grounded check the wall receptacle and circuit checked by a qualified electrician WARNING Using the remote control ...

Page 11: ...sture M SOON H COOL button Cools down the indoor temperature within a short period of time the start end time display ON or OFF AM ON OFF A CLEAN Turn indoor unit controller settings remote LIGHT H COOL Used to start or stop Mosquito Away operation Mosquito Away operation button Display Screen Control Panel M SOON FAN 2 H COOL M M LIGHT Display Screen Control Panel 2 H COOL M SOON M LIGHT Symbol i...

Page 12: ... mode removes excess moisture from environment with high humidity or in the rainy season in order to prevent mold from setting in This mode adjusts the room temperature and the fan speed automatically to maintain the optimal level of humidity 1 Press to turn on the power 2 Press to select the monsoon operation is displayed on the display screen NOTE Cooling only models do not support this function...

Page 13: ...r arbitrarily may cause product failure If you restart the air conditioner it starts to operate with the previously set direc tion of air flow so the air deflector may not match the icon displayed on the re mote control When this occurs press or to adjust the direction of the air flow again Airing your room Air Circulation operation This mode only circulates the indoor air without changing the roo...

Page 14: ...setting to cancel 2 Press To cancel all timer settings press Setting sleep mode Use the sleep mode to turn OFF the air condi tioner automatically when you go to sleep 1 Press to turn on the power 2 Press 3 Press or to select the hour up to 7 hours 4 Press to finish is displayed on the display screen in sleep mode desired time desired time desired time This mode does not have auto restart feature T...

Page 15: ...nction Co will be displayed on the unit Power saving lamp blink depending on the model Energy saving cooling mode This mode minimizes power consumption dur ing cooling and increases the set temperature to the optimal level for a more comfortable en vironment The temperature automatically sets at 22 C if ambient temperature is below 22 C The temperature maintains if ambient temper ature is above 22...

Page 16: ...to Changeover Optional 1 Press to turn on the power 2 Press repeatedly to select auto operation This operation is basically heating or cooling function of the air conditioner But during this operation the controller change the operation mode automatically to keep the temperature within 2 C with respect to the setting temperature Cooling only models Heat pump models NOTE This function may not be su...

Page 17: ... C Room Temp 21 C Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High High Setting Temperature 22 C 22 C 23 C 24 C If you want to stop the unit re press the power button 8 Open the front panel upward ON OFF button restart Optional ON OFF NOTE This function may not be supported de pending on the model ...

Page 18: ...consumption 3M filter MAINTENANCE 18 3 M filter 3M filter 1 Use soap solution to clean the heat exchanger coils and the panel vents consult with technician OFF ...

Page 19: ...MAINTENANCE 19 Do not press the mesh Caution Remove the plasma filter after 10 seconds ...

Page 20: ...of the filters may differ depending on the model The feature can be changed according to type of model Side Rear Air intake vents Air outlet vents Piping Drain Hose Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs Outdoor Unit The heat exchanger coils and panel vents of the outdoor unit should be checked regularly If clogged with dirt or so...

Page 21: ...TROUBLESHOOTING 21 call call call call There is a burning smell and an abrupt sound coming from the unit ...

Page 22: ...ion of plastic com ponents due to chan ge in temperature It is a natural phenomenon and can only be reduced but not overcome completely Operation ranges For Heat Cool model heating operation range follows the below table Heating Operation range Outdoor temperature 0 24 C When the outdoor temperature drops below 0 C heating capacity may drop slightly depending on the operation condition In summer i...

Page 23: ...Result Found to repel on average 81 1 of Aedes aegypti mosquitoes Repel rate shows percentage of mosquitoes prevented from entering the inside chamber after 90 minutes of Treatment setting compared to Control setting Represented average of 81 1 derived from 76 9 84 6 81 8 B Tested by Intertek Korea According to LG internal testing method Test conducted three times at temperature of 27 2 C and humi...

Page 24: ...21 INSTALLATION Do not use sea water for this purpose windbreak so that outdoor unit ...

Page 25: ...as side service valve Measure the temperature of the intake and discharge of air 1 2 Discharge temperature Discharge air Intake temperature 1 2 3 INSTALLATION 20 For reference the gas side pressure of optimum condition is as below Cooling 4 If the actual pressure is higher than shown the system is most likely over charged and charge should be removed If the actual pressure is lower than shown the ...

Page 26: ...ation Required time for evacuation when 30 gal h vacuum pump is used If tubing length is less than 10m 33 ft 10 min or more 15 min or more If tubing length is longer than 10m 33 ft When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump D Finishing the job With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully ope...

Page 27: ...vice port with charge hoses Do a leak test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder When the system pressure is reduced to normal dis...

Page 28: ...llowing Tape the piping and connecting cable from down to up Secure the taped piping along the exterior wall Form a trap to prevent water entering the room Fix the piping onto the wall by saddle or equivalent Seal small openings around pipings with a gum type sealant Trap is required to prevent water from entering into electrical parts Seal a small opening around the pipings with gum type sealant ...

Page 29: ... course of transportation Check them and make sure that they are all tightly fastened If they are loose it may cause burn out of the wires Specification of power source Confirm that electrical capability is sufficient The starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness is as specified in the power source specific...

Page 30: ...and outdoor unit should be compiled with the following specifications The connecting signal cable connected to the indoor and outdoor unit should be compiled with the following specifications Capacity Btu h NORMAL CROSS SECTIONAL AREA 18K 24K 2 1 0 mm 2 1 5mm 2 2 5mm Capacity Btu h NORMAL CROSS SECTIONAL AREA 9K 12K 18K 4 5 Star 2 1 0 mm 2 1 5 mm NORMAL CROSS SECTIONAL 2 AREA 0 75mm 9K 12K INSTALL...

Page 31: ...y seated on the installation plate by moving it left and right Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound Connection of the piping Outdoor When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench A Align the center of the pipings and sufficiently t...

Page 32: ...unit from the wall F Connecting the pipings to the indoor unit and the drain hose to drain pipe Align the center of the pipings and sufficiently tighten the flare nut by hand When extending the drain hose at the indoor unit install the drain pipe G Wrap the insulation material around the connecting portion Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation materia...

Page 33: ...t drain hose B Insert the piping drain hose and the connecting cable into the piping hole F Wrap the insulation material around the connecting portion A Route the indoor tubing and the drain hose to the required piping hole position For right rear piping When extending the drain hose at the indoor unit install the drain pipe Overlap the connection pipe insulation material and the indoor unit pipe ...

Page 34: ... the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right A Route the indoor tubing and the drain hose in the direction of rear left Drain hose B Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole Do not connect the cable to the indoor unit Make a small loop with the cable for easy connection ...

Page 35: ...ection as you remove burrs in order to avoid dropping burrs into the tubing E Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again C 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 Copper pipe 90 Slanted Uneven Rou...

Page 36: ...l the piping hole with a ø70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Indoor WALL Outdoor 5 7mm 0 2 0 3 CAUTION Make sure that the drilled hole in the wall is properly sealed using a proper sealant for example cement plaster of paris etc after passing the installation pipe drainage pipe and the inter connecting cable...

Page 37: ...an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted Ensure that the space around the back and sides is more than 300mm The front of the unit should have more than 700mm of space Do not place animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where ...

Page 38: ...ge Screw Driver Electric Drill Hole Core Drill Dia 70mm Flaring Tool Set Specified torque wrenches 1 8kg m 4 2kg m 5 5kg m 6 6kg m Different depending on model no Spanner Half Union Hexagonal Wrench Gas Leak Detector Vacuum Pump Gauge Manifold Thermometer INSTALLATION PARTS 7 ...

Page 39: ...t Bend the pipe as closely on the wall as possible but be careful that it doesn t break Vinyl tape Wide Apply after carrying out a drainage test To carry out the drainage test remove the air filters and pour water into the heat exchanger Gas side piping Liquid side piping Additional drain pipe Vinyl tape Connecting cable Cooling Heat pump 2EA Cooling only 1EA Saddle Air filter Left and right are i...

Page 40: ...STRUCTIONS Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product or may effect product performance to not cause neighbours neighbours ...

Page 41: ...ETY INSTRUCTIONS Do not turn ON the MCB Breaker or power under condition of front panel cabinet top cover control box cover are removed or opened Otherwise it may cause fire electric shock explosion or death ...

Page 42: ...3 reduce the cooling dehumidi cation functions Avoid excessive cooling Refer page no 19 and 20 details of owner s manual ...

Page 43: ...tween indoor and outdoor unit Checking the drainage and forming the piping Air purging Test running Installation guide at the seaside Installation of Indoor Outdoor Unit Flaring Work and Connection of Piping INSTALLATION 8 Flaring Work Connection of piping Indoor For left rear piping For right rear piping Connection of piping Outdoor IMPORTANT SAFETY INSTRUCTIONS 4 TIPS FOR SAVING ENERGY 3 ...

Page 44: ...D P No MFL39754865_V4 MFL39754865 INSTALLATION MANUAL Regd Office LG Electronics India Pvt Ltd A Wing 3rd Floor D 3 District Center Saket New Delhi 110017 Please read this installation manual completely before installing the product and retain it for future reference ...

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