• After selecting the best location, start installation accordingto Indoor/Outdoor Unit Installation Diagram.1. Fix the unit on concrete or rigid frame firmly and horizontallyby bolt nut. (ø10 mm).2. When installing at roof, please consider strong wind andearthquake. Please fasten the installation stand firmly withbolt or nails.Connecting The Piping To Indoor UnitPlease make flare after inserting flare nut (locate at joint portionof tube assembly) onto the copper pipe. (In case of using longpiping)Connect the piping• Align the center of piping and sufficiently tighten the flarenut with fingers.• Further tighten the flare nut with torque wrench in specifiedtorque as stated in the table.Piping size (Torque)Gas Liquid1/2” (55 N.m) 1/4” (18 N.m)11.3. Outdoor Unit11.3.1. SELECT THE BEST LOCATION(Refer to “Select the best location” section)11.3.2. INSTALL THE OUTDOOR UNIT11.3.3. CONNECTING THE PIPINGConnecting The Piping To Outdoor UnitDecide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut(located at valve) onto the copper pipe.Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.CUTTING AND FLARING THE PIPING1. Please cut using pipe cutter and then remove the burrs.2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.Turn the piping end down to avoid the metal powder entering the pipe.3. Please make flare after inserting the flare nut onto the copper pipes.62CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE