2911.3. Outdoor Unit11.3.1. Install the Outdoor Unit• After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram.1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt ornails.11.3.2. Connect the PipingConnecting the Piping to IndoorPlease make flare after inserting flare nut (locate at joint portionof tube assembly) onto the copper pipe.(In case of using long piping)Connect the piping• Align the center of piping and sufficiently tighten the flare nutwith fingers.• Further tighten the flare nut with torque wrench in specifiedtorque as stated in the table.Connecting the Piping to OutdoorDecide piping length and then cut by using pipe cutter. Removeburrs from cut edge. Make flare after inserting the flare nut(located at valve) onto the copper pipe.Align center of piping to valve and then tighten with torquewrench to the specified torque as stated in the table.Connecting the Piping to Outdoor MultiDecide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locatedat valve) onto the copper pipe.Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table.Model A B C DE7***570 mm 105 mm 18.5 mm 320 mmE9***E12***E15***E15***-3612.5 mm 131 mm 19 mm 383 mmE18***E21***E24*** 613 mm 131 mm 16 mm 360.5 mmE28***Do not over tighten, over tightening cause gas leakage.Piping Size Torque1/4” (6.35 mm) [18 N•m (1.8 kgf.m)]3/8” (9.52 mm) [42 N•m (4.3 kgf.m)]1/2” (12.7 mm) [55 N•m (5.6 kgf.m)]5/8” (15.88 mm) [65 N•m (6.6 kgf.m)]3/4” (19.05 mm) [100 N•m (10.2 kgf.m)]