3311.2 Indoor Unit11.2.1 How to Fix Installation PlateThe mounting wall shall be strong and solid enough to prevent if from the vibration.DimensionModel ○1 ○2 ○3 ○4 ○5 ○6C9***, C12*** 490 mm 82 mm 439 mm 432 mm 43 mm 95 mmC18***, C24*** 590 mm 82 mm 539 mm 532 mm 169 mm 219 mmThe center of installation plate should be at more than c at right and left of the wall.The distance from installation plate edge to ceiling should more than d.From installation plate left edge to unit’s left side is e.From installation plate right edge to unit’s right side is f.○B : For left side piping, piping connection for liquid should be about g from this line.: For left side piping, piping connection for gas should be about h from this line.1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws).(If mounting the unit on the concrete wall, consider using anchor bolts.)o Always mount the installation plate horizontally by aligning the marking-off line with the thread and usinga level gauge.2 Drill the piping plate hole with ø70 mm hole-core drill.o Putting measuring tape at position as shown in the diagram above.The hole center is obtained by measuring the distance namely 128 mm for left and right holerespectively. Another method is intersection point of arrow mark extension.The meeting point of the extension arrow mark is the hole center position.o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoorside. (refer to step 11.2.2)11.2.2 To Drill a Hole in the Wall andInstall a Sleeve of Piping1. Insert the piping sleeve to the hole.2. Fix the bushing to the sleeve.3. Cut the sleeve until it extrudes about 15 mm fromthe wall.4. Finish by sealing the sleeve with putty or caulkingcompound at the final stage.