1011. Preparation for suspending the unita. Size of hole at ceiling and position of hanging boltsb. Hanger bolts installationUse care of the piping direction when the unit is installed.2.1nstallation of indoor unitFix the indoor unit to the hanger bolts.If required it is possible to suspend the unit to the beam etc.Directly by use of the bolts without using the hanger bolts.NoteAdjusting to the levelnessTap selection on blower unitWhen the dimensions of main unit and ceiling holes doesnot match it can be adjusted with the slot holes of hangingbracket.(a) Adjust the out-of levelness using a level or by thefollowing method. Make adjustment so that the relationbetween the lower surface of the unit proper and waterlevel in the hose becomes as given below.(b) Unless the adjustment to the levelness is made properlymalfunctioning or failure of the float switch may occur.(When the high performance filter is used.)Taps of blower unit are set at the standard selection at theshipping from factory. Where the static pressure is raisedby employing such option as the high performance filter etc.change the connection of connectors provided at the flank ofcontrol box as shown below.AD90S2SM3FA AD90S2SM4FA AD105S2SM3FA AD105S2SM4FAAD125S2SM3FA AD125S2SM4FA AD140S2SM3FA AD140S2SM4FADimensionModel A(mm) B(mm) C(mm) D(mm) E(mm) F(mm)AD90S2SM3FA AD90S2SM4FA 1162 1612 1672 620 765 825AD105S2SM3FA AD105S2SM4FAAD125S2SM3FA AD125S2SM4FAAD140S2SM3FA AD140S2SM4FA1562 2012 2072 620 765 825