7Samsung Electronics2-3 Installation2-3-1 Before InstallationKeep the air conditioner drain hose outlet and inlet free from its surroundings.In case of breakdown, keep the symmetry and fix it to prevent vibration.The pipe length shall meet the standard as far as possible.2-3-2 Installation Procedure LocationInstall the product in an area to guarantee the best cooling effect, convenience of piping and electric work, and inexistence ofvibration or wind in the vicinity. Wall DrillingDrill the wall downward in a diameter of 60 to 65mm. Fixing Indoor Unit & Outdoor UnitFix the air conditioner hard enough so that it can not fall to the ground. On the roadside, the outdoor unit shall be installed 2mabove ground and kept away from pedestrians to prevent direct exposure to hot wind. Pipe Spooling & ConnectingYou shall cut the pipe straightly with a pipe cutter and grind all the burrs of the cut surface.Pipe expansion may continue until the pipe surface becomes uneven or torn apart.Be sure to use a torque wrench to tighten pipes or flare nuts. Leak TestPut an inert gas like nitrogen in the outdoor unit pipe and put soap bubbles or other test liquids on the pipe surface for the leak test. Drain Hose ConnectingInstall the drain hose downward to drain water naturally. Be sure to pour water into the hose to check if it drains well. Electric & Earth WorkElectric and earth work shall meet the "Electric Facility Technology Standard" and the "Internal Wire Regulation" of the ElectricBusiness Laws. Inspection & Trial RunUpon completion of the tests, you shall make a trial run while you explain the main functions of the air conditioner to finish theinstallation.Outer Diameter(D)6.35mm(1/4")12.70mm(1/2")15.88mm(5/8")Torque(kgf.cm)140~170380~420440~480Depth(A)1.3mm2.0mm2.2mmDA