Indoor Unit InstallationIt is recommended to install the refnet joint before installing the indoor unit.ConcreteSuspension bolt(3/8" or M10)Hole in anchorHole in plugInsertCeiling support1 Place the pattern sheet on the ceiling at the spot where you want toinstall the indoor unit.2 Insert bolt anchors, use existing ceiling supports or construct a suitablesupport as shown in figure.3 Install the suspension bolts depending on the ceiling type.4 Screw eight nuts to the suspension bolts making space for hangingthe indoor unit.5 Check the level of the indoor unit by using a leveler or a vinyl tube filledwith water. A tilt of the indoor unit may cause malfunction of a built-in float switch andwater leaks.6 Adjust the height of the indoor unit by using the gauge of dimensions. The air inlet side should be slightly higher than the air outlet side(approx. 5mm). The appropriate height from the ceiling surface is 25mmfor the air inlet and 20mm for the air outlet. You should adjust the gauge of dimensions and the pattern sheet to fitthe cutting dimensions of ceiling. Make sure that the indoor unit is installed at a level if the indoor unitslants too much, there can be water leaks.7 Tighten the upper part nuts.8 Remove the gauge of dimensions after installing the indoor unit. Ensure that the ceiling is strong enough to supportthe weight of the indoor unit.Before hanging the unit, test the strength of eachattached suspension bolt. If the length of suspension bolt is more than 1.5m,it is required to prevent vibration.IMPORTANTYou must install the suspension bolts more than fourwhen installing the indoor unit.IMPORTANT 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; refer to page 6.NNNN oooo tttt eeeeNot suppliedWasher(supplied)RubberLevelVinyl tube20mm25mmGauge of Dimensions CeilingAirinletAiroutletFasten the nutE-7ENGLISH