NEC NP300 XGA Installation And Assembly Manual - Warning

ISSUED: 08-05-08  SHEET #: 056-9008-1

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6 of 10

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Place projector mount assembly (A) on ceiling as a

template and mark the center of the two mounting

holes. Drill two 1/4" (6 mm) dia. holes to a minimum

depth of 2.5" (64 mm). Attach projector mount

assembly (A) using two concrete anchors (G), two

flat washers (E), and two #14 x 2.5" wood screws (F)

as shown in fig. 2.6and1, 2 and 3(right). Tighten

wood screws (F) using 3/8" (10 mm) socket wrench,

phillips screwdriver or 10mm open end wrench until

projector mount assembly (A) is firmly attached.

NOTE: It is the responsibility of the installer to

verify that the ceiling will safely support the

combined load of all attached hardware and

components.

Skip to step 3.

• Concrete anchors are not intended for attachment to

concrete ceiling covered with a layer of plaster,

drywall, or other finishing material. If mounting to

concrete ceiling covered with plaster/drywall is un-

avoidable, plaster/drywall (up to 5/8" thick) must be

counterbored as shown below. If plaster/drywall is

thicker than 5/8", custom fasteners must be supplied

by installer.

WARNING

• Tighten wood screws firmly, but do not overtighten. Overtightening can damage the screws, greatly reducing their

holding power.

• Never tighten in excess of 80 in • lb (9 N.M.).

WARNING

Installation to Concrete Ceilings

2

1

3

Drill holes and insert anchors

concrete

ceiling

F

F

2

A

G

G

G

Place mount over anchors and secure with screws

Tighten all fasteners

F

A

CONCRETE CEILING

E

G

FRONT OF

MOUNT

CUT

A

W

A

Y

 VIEW

INCORRECT

concrete

plaster/

dry wall

CORRECT

concrete

plaster/

dry wall

A

A

fig. 2.6