LG ARWN120LAS4.EWGBLEU Manuel d'utilisateur

P/NO : MFL68100309INSTALLATION MANUALAIRCONDITIONERwww.lg.comPlease read this installation manual completely before installing the product.Installatio

10ENGLISHCAUTIONBe very careful while carrying the product.• Do not have only one person carry product if it is more than 20kg.• PP bands are used to

11ENGLISHⒶ The corner part must be fixed firmly. Otherwise, the support for theinstallation may be bent.Ⓑ Get and use M10 Anchor bolt.Ⓒ Put Cushion Pa

12ENGLISHOpening shutoff valve1 Remove the cap and turn the valve counter clockwise with thewrench.2 Turn it until the shaft stops.Do not apply excess

13ENGLISHRefrigerant piping on three principlesDrying Cleanliness AirtightShould be no moistureinsideNo dust inside.There is no refrigerantleakageItem

14ENGLISHConnection of Outside unitsABABCC(Master) (Slave1)(Master) (Slave1) (Slave2)ABC(Master) (Slave1) (Slave2)D(Slave3)2 Unit3 Unit4 UnitARCNN21AR

15ENGLISHCAUTIONDo not directly connect the drain outlet to the water pipe outlet. (It can cause problems to the product.) !- Always install a straine

16ENGLISH1 inch or 3/4 inch socketCoverMicro-switchAdjustment screwVibration plateBellowsPadInstallation of flow switch- The flow switch must be instal

17ENGLISH(Table 2) Refrigerant pipe diameter from outside unit to first branch. (A)h * : See Table 4UpwardOutside unittotal capacityStandard PipeDiam

18ENGLISHWARNINGPipe length after header branching (a~f)It is recommended that difference in length of the pipes con-nected to the Indoor Units is min

19ENGLISH- Apply Oil Trap as shown below when the length of the pipe betweenthe outside units is more than 2m. Otherwise, the unit may not oper-ate pr

2TIPS FOR SAVING ENERGYHere are some tips that will help you minimize the power consumptionwhen you use the air conditioner. You can use your air cond

20ENGLISHGas pipeLiquid pipeⒶ Manifold GaugeⒷ Low pressure side HandleⒸ High pressure side HandleWARNING• Pipe to be vacuumed : gas pipe, liquid pipe•

21ENGLISH- When the number of indoor units to be connected to the branchpipes is less than the number of branch pipes available for connectionthen cap

22ENGLISH[unit:mm]Leak testLeak test should be made by pressurizing nitrogen gas to 3.8MPa(38.7kgf/cm2). If the pressure does not drop for 24 hours, t

23ENGLISHNOTE!Always add an appropriate amount of refrigerant. (For the refrigerant addi-tional charge) Too much or too little refrigerant will cause

24ENGLISHABEBIABDC1m1mDFGBGDBHIJAPenetrationsⒶ SleeveⒷ Heat insulating materialⒸ LaggingⒹ Caulking materialⒺ BandⒻ Waterproofing layerⒼ Sleeve with ed

25ENGLISHCAUTIONWhen the 400 volt power supply is applied to “N” phase by mistake,check damaged parts in control box and replace them.Precautions when

26ENGLISHWiring of main power supply and equipmentcapacity- Use a separate power supply for the Outside Unit and Indoor Unit.- Bear in mind ambient co

27ENGLISHSeries outside unitsWhen the power source is supplied to Each outside unit individually.R S T N Switch Fuse L N Communication cable(2 Wires

28ENGLISHAutomatic AddressingThe address of indoor units would be set by Automatic Addressing- Wait for 3 minutes after supplying power.(Master and Sl

29ENGLISHGroup Number settingGroup Number setting for Indoor Units- Confirm the power of whole system(Indoor Unit, Outside Unit) isOFF, otherwise turn

3• Do not store or use flammable gas or com-bustibles near the air conditioner. - There is risk of fire or failure of product.• Use the correctly rate

30ENGLISHCAUTION• Request the function settings to the installation specialist duringthe outside unit installation.• When the function is not used, s

31ENGLISHSetting the outside unit addressHow to set the modeTurn on DIP switch No.5 of the master unit PCBUse ‘▶‘ and ‘◀‘ button to mark “Func” in the

32ENGLISHWARNING• Always check whether the water supply is flowing smoothlybefore the test run. (If sufficient amount of water is not flow-ing, it can

33ENGLISHDaily check/management1Water quality controlThe plate type heat exchanger is not structured to be disassem-bled, cleaned or replaced with par

34ENGLISHSelf-Diagnosis FunctionError Indicator- This function indicates types of failure in self-diagnosis and occurrence of failure for air conditio

35ENGLISHDisplay Title Cause of ErrorOutside unit related error3 5 *3 6 *3 9 *4 0 *4 1 *4 2 *4 3 *4 4 *4 6 *4 9 *5 0 *5 1 *5 2 *5 3 *5 7 *5 9 *6 0 *6

36ENGLISHDisplay Title Cause of ErrorOutside unit related error1 0 4*1 1 3*1 1 5*116*145*151*180*181*182*Communication Error Between Master Outside Un

37ENGLISHIn case the concentration exceeds the limitWhen the concentration exceeds the limit, change original plan or takeone of the countermeasures s

38ENGLISHINSTALLATION GUIDE FOR HAR-MONICS AND FLICKERThe below Installation guide is limited applicable only for modelModel : ARWN140LAS4, ARWN120LAS

4CAUTIONInstallation• Always check for gas (refrigerant) leakage afterinstallation or repair of product.- Low refrigerant levels may cause failure of

5• Do not operate the air conditioner with the panelsor guards removed.- Rotating, hot, or high-voltage parts can cause in-juries.• Do not directly tu

6INSTALLATION PROCESSENGLISHThe foundation must be level evenOutside unit foundation workAvoid short circuits and ensure sufficient space is allowed fo

7ENGLISHUnit2 UnitSystem Capacity (HP)ModelCombination UnitIndependent UnitRefrigerant Precharged AmountkgMaximum Connectable Number of Indoor UnitsNe

8ENGLISHSELECT THE BEST LOCATIONSelect space for installing outside unit , which will meet the followingconditions:- With strength which bears weight

9ENGLISHINSTALLATION SPACEIndividual Installation Water control Collective / Continuous InstallationDuring the installation of the unit, consider serv