LG ARUN120LSS0.EWGBLRU User Manual

P/NO : MFL67798017www.lg.comOriginal instructionINSTALLATION MANUALAIR CONDITIONER • Please read this installation manual completely before installing

10ENGLISH1 Always use the nitrogen.(not use oxygen, carbon dioxide, anda Chevron gas): Please use the following nitrogen pressure0.02MPa Oxygen – Pro

11ENGLISH- Pipe connections can be done on the front side or on the side accord-ing to the installation environments.- Be sure to let 0.2kgf/cm2Nitrog

12ENGLISHTotal pipe length = A+B+C+D+a+b+c+d+e ≤ 300mLLongest pipe length Equivalent pipe length(*)A+B+C+D+e ≤ 150m A+B+C+D+e ≤ 175mlLongest pipe leng

13ENGLISH• * : Assume equivalent piping length of Y branch to be 0.5m, thatof header to be 1m, calculation purpose• Indoor Unit should be installed at

14ENGLISHIndoor Unit ConnectionIndoor Unit connecting pipe from branch (a,b,c,d,e,f)Indoor Unit capacity[kW(Btu/h)]Liquid pipe[mm(inch)]Gas pipe [mm(i

15ENGLISH1st1st1stMain pipeDistribution2nd2nd3rd3ndMain pipeDistribution1st3rd3rd main pipe distribution2ndHorizontal Distribution• When the number of

16ENGLISH• Joints between branch and pipe should be sealed with the tape in-cluded in each kit.• Any cap pipe should be insulated using the insulator

17ENGLISHNOTE!If the ambient temperature differs between the time when pressure isapplied and when the pressure drop is checked, apply the followingco

18ENGLISHBe sure to give insulation work to refrigerant piping by covering liquidpipe and gas pipe separately with enough thickness heat-resistant pol

19ENGLISH2-Core Shield CableMulti-Core CableRemotecontrolRemotecontrolRemotecontrolRemotecontrolIndoorUnitOutdoor UnitOutdoor UnitIndoorUnitIndoorUnit

2ENGLISH• Do not cool excessively indoors. This may be harmful for your healthand may consume more electricity.• Block sunlight with blinds or curta

20ENGLISHNOTE!• The figures are based on assumed length of parallel cabling upto 100m. For length in excess of 100m the figures will have tobe recalcu

21ENGLISHMasterOutdoor UnitSODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V34 34 34[Heat Pump]Between Indoor and Master Outdoor uni

22ENGLISH- About more information of IO Module, please refer to IO Modulemanual.CAUTIONBe sure to turn off outdoor unit power before installation.!++※

23ENGLISHExample) Group number setting 1stnumber indicate the group number2nd number point out indoor unit numberSODU.B SODU.A IDU.B IDU.A CEN.B CEN.A

24ENGLISHCAUTION• Request installer to set the function during installation. • If ODU RPM changes, cooling capacity may go down.!Master unit PCB DIP s

25ENGLISHError No. of CompressorError No.Error No. of UnitRepeatDisplay Title Cause of ErrorIndoor unit related error0 1 -Air temperature sensor of in

26ENGLISHDisplay Title Cause of Error5 0 1Omitting connection of R, S, T power of Outdoor Unit Omitting connection of outdoor unit5 1 1Excessive capac

27ENGLISHCalculate minimum room capacityCalculate room capacity by regarding a portion as one room or thesmaller room.- With partition and with openin

CAUTION• Air conditioners should not be installed in areas wherecorrosive gases, such as acid or alkaline gas, are produced.• Do not install the produ

[Representative] LG Electronics Inc. EU Representative Krijgsman 1, 1186 DM Amstelveen, The Netherlands[Manufacturer] LG Electronics Inc. Changwon 2nd

3CAUTIONInstallation• Always check for gas (refrigerant) leakage after installation or repair of product.- Low refrigerant levels may cause failure of

4ENGLISHThe foundation must be level evenOutdoor unit foundation workAvoid short circuits and ensure sufficient space is allowed for serviceInstallatio

5ENGLISHAir inlet grille700[Unit : mm]Turn the air outlet side toward thebuilding's wall, fence or windbreak screen.WARNINGFix the outdoor unit f

6ENGLISHIn case of obstacles on the discharge side1. Stand alone installationa500 or lessmore1,000 ora2. Collective installation1,000 or more100 ormor

7ENGLISHSeasonal wind and cautions in winter• Sufficient measures are required in a snow area or severe cold areain winter so that product can be oper

8ENGLISH• Fix the unit tightly with bolts as shown below so that unit will not falldown due to earthquake or gust.• Use the H-beam support as a base s

9ENGLISHFlaring work- Carry out flaring work using flaring tool as shown below.Firmly hold copper tube in a bar(or die) as indicated dimension in thet