r Cautions when setting the projectorsf 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.over 500 mm(19-11/16")over 1 000 mm(39-3/8")over 500 mm(19-11/16")over 200 mm(7-7/8")f Depending on where the projector is used, heated air from an exhaust port or warm or cold air from an air conditioner cancause a shimmering effect on screen.Avoid using in locations where exhaust or streams of air from projector, other devices and air conditioners flow between theprojector and the screen.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 (Æ pages 77, 92)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.Chapter 1 Preparation - Precautions for useENGLISH - 15