3412.2 Indoor Unit12.2.1 How to Fix Installation PlateThe mounting wall shall be strong and solid enough to prevent it from vibration.More than 495 mm46 mm 46 mm55 mm 57 mm49 mm39 mmMore than 495 mmMore than76 mmWallWallIndoor unitInstallation plate 1Screw 2WallThe center of the installation plate should be at more than 495 mm at right and left of the wall.The distance from installation plate edge to ceiling should more than 76 mm.From installation plate left edge to unit’s left side is 39 mm.From installation plate right edge to unit’s right side is 49 mm.1. Mount the installation plate on the wall with 6 screws or more (at least 6 screws).(If mounting the unit on the concrete wall, consider using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with the thread and using alevel gauge.2. Drill the piping plate hole with ø70 mm hole-core drill. The hole center of the pipe is the meeting point of the following two lines, the vertically extended line of thedown arrow on the plate and the horizontally extended line of the side arrow on the plate.(see figure above). Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side.12.2.2 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 mmfrom the wall.CAUTIONWhen the wall is hollow, please be sure to use thesleeve for tube assembly to prevent dangerscaused by mice biting the connection cable.4 Finish by sealing the sleeve with putty orcaulking compound at the final stage.15 mmPutty or caulking compoundø70 mmthrough holeIndoor OutdoorSleeve for tubeassemblyApprox. 5 - 7 mmBushing for tubeassemblyWall