Haier AB142ACAAA Operation Manual

Haier AB142ACAAA Operation Manual Manual pdf 31 page image

29Piping Connection(1) Dimension of connecting pipeFit the nut on and fasten(2) The maximum length and drop height of connecting pipeThe maximum length is 10mThe maximum drop height is 5m.To ensure the efficiency ,Pipes shall be as short as possible.Cautions for piping connectionDo not twist or deform the connecting pipe.Do not mix dusts.The bending radius shall be as large as possible.Both gas pipe and liquid pipe shall be heat insulation.No leakage in the flare.SpannerSpannerJointN u t(3) Piping connectionConnecting methodSmear refrigerant oil on the joints of piping and flare.The bending radius shall be as large as possible.Align the pipe center when fastening, and tighten thenut, as shown in the figure.Pay attention to not mix foreign matters such as sandsin.Diameter of PipeLiquid Pipe 6.35mmGas Pipe 12.7mmTighten Torque18 N. m50N. mIf not aligned ,tighten the nut by force willdamage the nut that result in gas leakageFlare connectionGas pipe 3-way valveIndoorUnit OutdoorunitLiquidpipe2-way valveFlare connection90+0.512.7mm6.35mmGas pipeLiquid pipeInstallation Procedures