33ENGLISHIndoor unit installation1. Place the pattern sheet on the ceiling at the spot where you want toinstall the indoor unit.• Since the diagram is made of paper, it may shrink or stretchslightly due to temperature or humidity. For this reason, beforedrilling the holes maintain the correct dimensions between themarkings.NOTE2. Insert bolt anchors, use existing ceiling supports or construct a suitablesupport as shown in figure. ConcreteSuspension bolt [Ø9.52(3/8”) or M10]InsertHole inanchorHole in plug3. Install the suspension bolts depending on the ceiling type.Ceiling support• Ensure that the ceiling is strong enough to support the weightof the indoor unit. Before hanging the unit, test the strength ofeach attached suspension bolt.• If the length of suspension bolt is more than 1.5m (4.92 ft),vibration prevention is required.• If this is not possible, create an opening on the false ceiling inorder to be able to use it to perform the required operations onthe indoor unit.CAUTION4. Screw three nuts to each suspension bolt leaving space for hanging theindoor unit. Also, install included rubber washers as shown. NutWasherRubberwasherFasten the nut• You must install four suspension bolts when installing the indoorunit.CAUTION5. Check the levelness of the indoor unit by using a level.• A tilt of the indoor unit may cause malfunction of built-in float switchand cause water leaks.Level