1.1.1INDOOR UNIT INSTALLATIONSelecting installation siteWhen the conditions in the ceiling are exceeding 300C/ 860Fand arelative humidity of 80%, or when fresh air is inducted into the ceiling,an additional insulation is required (minimum 10 mm / 0.4in thickness,polyethylene foam).1)2)3)Select an installation site where the following conditions arefulfilled and that meets your customer's approval.Where optimum air distribution can be ensured.Where nothing blocks air passage.Where condensate water can be properly drained.Where the false ceiling is not noticeably on an incline.Where sufficient clearance for maintenance and service can beensured.Where there is no risk of flammable gas leaking.The equipment is not intended for use in a potentially explosiveatmosphere.Where piping between indoor and outdoor units is possiblewithin the allowable limit.(Refer to the installation manual of theoutdoor unit.)Keep indoor unit,outdoor unit,inter unit wiring and remotecontroller wiring at least 1 meter away from televisions andradios. This is to prevent image interference and noise in thoseelectrical appliances.(Noise may be generated depending onthe conditions under which the electric wave is generated,evenif 1 meter is kept.)When installing the wireless remote controller kit,the distancebetween wireless remote controller and indoor unit might beshorter if there are fluorescent lights who are electrically startedin the room. The indoor unit must be installed as far as possibleaway from fluorescent lights.Ceiling heightInstall this unit where the height of bottom panel is more than2.5m / 8.2ft so that the user cannot easily touch.Use installation hooks for installation.Check whether theceiling is strong enough to support the weight of the indoorunit.lf there is a risk,reinforce the ceiling before installingthe unit.Space required for installation see the figure below ( :air flowdirection)0MOOO,'39.4in2X 000/39.4inAir inletAir outletDANGERm 000/39.4in2Unit: mm2Do not install the unit in an area where flammable materialsare present due to risk of explosion resulting in seriousinjury or death.WARNINGIf the basis underneath the unit is not strong enough tosupport the weight of the unit, the unit could be fall out ofplace and cause serious injury.4