NEC 4001-20B User Manual - Page 18
Bottom view, Using the Physical Lock
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1. Introduction Bottom view ITEM LABEL 1. Height adjusters DESCRIPTION Adjust projection height SEE PAGE: 44 2. Intake vent Color wheel cooling vent - do not obstruct - 3. Front filter Keep the fan free of dust - clean regularly for optimum performance 103 4. Ceiling support holes Contact your dealer for information on mounting the projector on a ceiling - 5. Security chain opening Attach anti-theft device - see u Using the Physical Lock 60 6. Rear filter 7. Side filter Keep the fans free of dust - clean regularly for optimum performance 103 CAUTION With ceiling installation, use approved mounting hardware & M4 screws; maximum depth of screw: 12 mm; distance from ceiling/ wall: 50/50 cm, 20/20 inch for proper ventilation; distance from fluorescent lamps: at least 50 cm front and back of then projector. For permanent installations, follow local codes. 6
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