Samsung AC035MNLDKH Installation Manual

Contents

19Installation ProcedureEnglishStep 8 Performing the gas leak testTo identify potential gas leaks on the indoor unit, inspectthe connection area of each refrigerant pipe using a leakdetector for R-410A.Before recreating the vacuum and recirculating therefrigerant gas, pressurize the whole system withnitrogen (using a cylinder with a pressure reducer) at apressure above 4 MPa in order to immediately detectleaks on the refrigerant fittings.Made vacuum for 15 minutes and pressurizing systemwith nitrogen.InsulatorLiquid sideGas sideStep 9 Insulating the refrigerant pipesOnce you have checked that there are no leaks in thesystem, you can insulate the piping and hose.1 To avoid condensation problems, place AcrylonitrileButadien Rubber separately around each refrigerant pipe.No gapNBRNOTE• Always make the seam of pipes face upwards.2 Wind insulating tape around the pipes and drain hoseavoiding compressing the insulation too much.Indoor unitInsulation cover pipeInsulation pipeBe sure to overlap the insulation.CAUTION• Be sure to wrap insulation tightly without any gaps.3 Finish wrapping insulating tape around the rest of thepipes leading to the outdoor unit.4 The pipes and electrical cables connecting the indoorunit with the outdoor unit must be fixed to the wall withsuitable ducts.CAUTION• Make sure that all refrigerant connection must beaccessible for easy maintenance and detachment.• Install the insulation not to get wider and use theadhesives on the connection part of it to preventmoisture from entering.• Wind the refrigerant pipe with insulation tape if it isexposed to outside sunlight.• Install the refrigerant pipe respecting that theinsulation does not get thinner on the bent part orhanger of pipe.• Add the additional insulation if the insulation plategets thinner.a x 3HangerAdditional insulationa Refrigerant pipeinsulation