r Cautions when setting the projectorsf If you want to use the projector other than the way of setting on the desk/floor with the adjustable feet or mounting on theceiling, use the three screw holes for ceiling mounting (as shown below) to fix the projector.(Screw: M4; Depth of the screw hole: 8 mm (5/16"); Torque: M4 1.25 ± 0.2 N·m)In addition, always keep a gap of more than 20 mm (25/32") between the bottom of the projector and installation surface.Make sure that there is no clearance of at least 20 mm (25/32″) between the screw holes for ceiling mounting and theinstallation surface by inserting supports (metallic) between them.f Do not stack the projectors.f Do not use the projector supporting it by the top.f Do not block the ventilation ports (intake and exhaust) of the projector.f Avoid heating and cooling air from the air conditioning system directly blow to the ventilation ports (intake and exhaust) ofthe projector.f Do not install the projector in a confined space.When placing the projector in a confined space, a ventilation and/or air conditioning system is required. Exhaust heat mayaccumulate when the ventilation is not enough, triggering the protection circuit of the projector.SecurityTake safety measures against following incidents.f Personal information being leaked via this product.f Unauthorized operation of this product by a malicious third party.f Interfering or stopping of this product by a malicious third party.Security instruction (x pages 85, 92, 110)f Make your password as difficult to guess as possible.f Change your password periodically.f Panasonic or its affiliate company never inquires a password directly to a customer. Do not tell your password in case youreceive such an inquiry.f The connecting network must be secured by firewall or others.f Set a password for web control and restrict the users who can log in .The positions of adjustable feet and thescrew holes for ceiling mountingAdjustable feetOver 20 mm(25/32 ″)Installation surfaceScrew holes forceiling mountingf Make sure the air flow into the air intakeport (bottom), failure to do so may cause theprojector cannot work.Air intake port(bottom)500 mm (19-11/16")or longer1 000 mm(39-3/8") or longer7 mm (9/32")or longer500 mm (19-11/16")or longer 200 mm (7-7/8")or longerENGLISH - 19Chapter 1 Preparation - Precautions for use