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Panasonic et-jpc100bu Installation Instructions Manual
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14 - ENGLISHInstallation (continued) When the ceiling mount bolt installation location is concreteAnchor nut orcurled plugFlat washer Hexagonal nutHexagonal nutCeiling mount boltHexagonal nutHexagonal nutCeiling mount boltFlat washerSpring washerSpring washerFlat washerFlat washerSpring washerSpring washerIndoor wiring hole (bracket side) TerminalblockCeiling mount bracketProtrudes 20 mm (25/32") to 30 mm (1-3/16") *1from the ceiling surface.Ceiling boardAnchor nut orcurled plugConcrete*1 27 mm (1-1/16") to 30 mm (1-3/16") when two nutsHole for indoor wiring1) Drill mounting holes in reference to “Mounting hole dimensions” ( 11 page). Drill anchor nut or curled plug mounting holes to match the size specified by the manufacturer. Drill two holes in the ceiling board for passing the ceiling mount bolts (M10) through and one hole in theceiling board for pulling the indoor wiring through.2) Attach the two ceiling mount bolts to the concrete ceiling. Attach the anchor nuts or curled plugs to the concrete ceiling and securely fix the two ceiling mount bolts. When installing anchor nuts or curled plugs, strictly adhere to the installation instructions supplied by themanufacturer so that they will not come out or loosen, or be dislodged from the intended positions. If the ceiling concrete has become weak and fragile or may have degraded as a result of being old,reinforce it with iron or wood.3) Pull out the indoor wiring for the power supply from the ceiling. Pull out the indoor wiring for the power supply from the indoor wiring hole you drilled in the ceiling board.4) Attach the ceiling mount bracket to the ceiling mount bolts. Pass the indoor wiring for the power supply through the indoor wiring hole of the ceiling mount bracket andthen securely fix the ceiling mount bracket to the ceiling mount bolts. The ends of ceiling mount bolts at the ceiling mount bracket side should protrude by approx. 5 mm (3/16")from the hexagonal nuts. Make sure the distance from the surface of the ceiling mount bracket to the end of the ceiling mount boltsis within 30 mm (1-3/16"). If the distance is too long, the projector mount bracket will not be able to beattached. Be sure to use commercially available flat washers and spring washers to install the ceiling mount bracket.Attention Tighten the hexagonal nuts fixing the ceiling board and ceiling mount bracket together while considering thestrength of the ceiling board material. If the ceiling board material is of low strength, the ceiling board maybe damaged if the nuts are tightened to the specified torque. Also take a measure such as using two nuts orthread-locking fluid to prevent loosening of the hexagonal nuts. |
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