162. Installation and ConnectionsWARNING* Installing your projector on the ceiling must be doneby a qualified technician. Contact your NEC dealer formore information.* Do not attempt to install the projector yourself.• Only use your projector on a solid, level surface. If theprojector falls to the ground, you can be injured andthe projector severely damaged.• Do not use the projector where temperatures varygreatly. The projector must be used at temperaturesbetween 41˚F (5˚C) and 95˚F (35˚C).• Do not expose the projector to moisture, dust, orsmoke. This will harm the screen image.• Ensure that you have adequate ventilation around yourprojector so heat can dissipate. Do not cover the ventson the side or the front of the projector.Reflecting the ImageUsing a mirror to reflect your projector's image enablesyou to enjoy a much larger image. Contact your NECdealer if you need a mirror system. If you're using a mir-ror system and your image is inverted, use the MENUand SELECT buttons on your projector cabinet or yourremote control to correct the orientation. See page 44.