Samsung RD080HRXGB Installation Manual

Also see for RD080HHXG* Series: Service manual

Contents

installing the unit _15ENGLISHinstalling the unitREFRIGERANT PIPING WORKS• The piping length between the outdoor unit and the indoor unit may not exceed the allowable pipinglength.• The pressure of the R410A is high.Use only certified refrigerant pipe and follow the installation method.• Use clean refrigerant pipe which there is no harmful ion, oxide, dust, iron content or moisture inside pipe.• Use tools and accessories fit on R410A.Selecting the refrigerant pipeTool Work If compatible with conventional toolPipe cutterRefrigerant pipe workPipe cutting CompatibleFlaring tool Pipe flaringRefrigerant oil Apply refrigerant oil on flaredpartEster series oil, alkalibenzene oil or synthetic oilTorque wrench Connect flare joint with pipeCompatiblePipe bender Pipe bendingNitrogen gas Air tightening test Inhibition of oxidizationBrazing tool Pipe brazingGauge manifold Air tightening test ~ additionalrefrigerant chargingVacuuming, charging andchecking operation ExclusiveRefrigerant charging hoseVacuum pump Vacuuming unitUse one which has a checkvalve and 5 torr degree ofvacuum.Electronic scale CompatibleGas leak detector Gas leak test ExclusiveFlare joint Use indoor unit’s onlyThe pipe length between outdoorand the farthest indoor unitBelow 90m 90m and overø9.52 ø12.70ø12.70 ø15.88ø15.88 ø19.05ø19.05 ø22.23ø22.23 ø25.40ø25.40 ø28.58ø28.58 ø31.75ø31.75 ø38.10ø38.10 ø44.45ø44.45 ø50.80• When the equivalent pipe length from outdoor unit to the farthest indoor unit is over 90m,the main pipe (both liquid and gas pipe) has to be increased with 1 size like below table.Main pipe Equivalent pipe length between outdoorunit and the farthest indoor unit Main pipe : from outdoor unit to the first branch joint.First branchjointWhen installing, make sure there is no leakage. When recovering the refrigerant, ground thecompressor first before removing the connection pipe.If the refrigerant pipe is not properly connected and the compressor works with the service valveopen, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormallyhigh. It may cause explosion and injury.WARNING