Samsung RD080HRXGB Installation Manual

Also see for RD080HHXG* Series: Service manual

Contents

20_ installing the unitinstalling the unitREFRIGERANT PIPING WORKSTemper grade and minimum thickness of the refrigerant pipeKeeping refrigerant pipe clean and dryTo prevent foreign materials or water from entering the pipe, it is important to keep the refrigerantpipe clean and dry and to seal it during installation.Brazing the pipe• Make sure that there is no moisture inside the pipe.• Make sure that there are no foreign materials and impurities in the pipe.• Make sure that there is no leak.• Make sure to follow the instruction when brazing the pipe.The use of Nitrogen gas1. Use Nitrogen gas when brazing the pipes as shownin the picture.2. If you do not use Nitrogen gas when brazing thepipes, oxide may form inside the pipe. It can causethe damage of the compressor, valves.3. Adjust the flow rate of the Nitrogen gas with apressure regulator to maintain 0.05m3/h or less.Direction of the pipe when brazing• Performing the brazing of the pipe should be headed downward or horizontally.Exposure place Exposure time Sealing typeOutside exposure Longer than one month Pipe pinchShorter than one month TapingInside exposure - TapingBrazing partNitrogen gas1/4" copper pipeStop valveTapingPressure regulatorFlowmeterDownward Side UpwardNote Avoid brazing the pipe upward.Outer diameter [mm] Minimum thickness [mm] Temper gradeØ6.35 0.7C1220T-OØ9.52 0.7Ø12.70 0.8Ø15.88 1.0Ø19.05 0.9C1220T-1/2HorC1220T-HØ22.23 0.9Ø25.40 1.0Ø28.58 1.1Ø31.75 1.1Ø38.10 1.35Ø44.45 1.6Ø50.80 2.0Make sure to use C1220T-1/2H (Semi-hard) pipe for more than Ø19.05mm. In case of usingC1220T-O (Soft) pipe for Ø19.05mm, pipe may be broken, which can result in an injury.CAUTION