Samsung AM0 SERIES Installation Manual

Also see for AM0 SERIES: Installation manual Technical bulletin

Performing leak test & insulationLeak testLEAK TEST WITH NITROGEN (before opening valves)In order to detect basic refrigerant leaks, before recreating the vacuum and recirculating the R-410A, it’s responsible ofinstaller to pressurize the whole system with nitrogen (using a pressure regulator) at a pressure above 595 PSI (4.1MPa).LEAK TEST WITH R-410A (after opening valves)Before opening valves, discharge all the nitrogen in the system and create vacuum. After opening valves checkleaks using a leak detector for refrigerant R-410A.• Discharge all the nitrogen to create a vacuum and charge the systemCAUTIONInsulationOnce you have checked that there are no leaks in the system, you can insulate the piping and hose.1. To avoid condensation problems, place T13.0mm (0.51”) orthicker Acrylonitrile Butadien Rubber separately around eachrefrigerant pipe.NOTEAlways make the seam of pipes face upwards.No gapNBR [T13.0mm (0.51”) or thicker]2. Wind insulating tape around the pipes and drain hose avoiding tocompress the insulation too much.Indoor unitBe sure to overlapthe insulationInsulation pipe• Must fit tightly againstbody without any gap.CAUTION3. Finish wrapping insulating tape around the rest of the pipes leading tothe outdoor unit.4. The pipes and electrical cables connecting the indoor unit with theoutdoor unit must be fixed to the wall with suitable ducts/straps.• All refrigerant connection must be accessible, in order topermit either unit maintenance or removing it completely.CAUTIONLeakcheck• You can contact the gas side and liquid side pipes but the pipesshould not be pressed together tightly.• When contacting the gas side and liquid side pipe, use 1 gradethicker insulator.Gas pipeLiquid pipeInsulationInsulationAM0**JNZDCH/AA IM ENG_V1.5_0708201513