ISSUED: 10-01-10 SHEET #: 056-9034-4 07-29-11
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6 of 10
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fig. 3.1
Installation to Concrete Ceilings
Place projector mount assembly (
A
) on ceiling
as a template and mark the center of the two
mounting holes. Drill two 5/16" (8mm) dia. holes
to a minimum depth of 2-1/2" (64mm). Attach
projector mount assembly (
A
) using two concrete
anchors (
G
), two flat washers (
E
), and two #14 x
2-1/2" wood screws (
F
) as shown in
figure 3.1
.
NOTE:
Mounting slots on projector mount
assembly allow for 30° (±15°) of swivel adjustment
before fully securing wood screws.
Tighten wood screws (
F
) using 3/8" (10mm) socket
or open end wrench or phillips screwdriver until
projector mount assembly (
A
) is firmly attached.
3
• Concrete must be 2000 psi density minimum. Lighter density concrete may not hold concrete anchor.
• Make sure that the supporting surface will safely support the combined load of the equipment and all attached
hardware and components.
WARNING
• Always attach concrete anchors directly to load-
bearing concrete.
• Never attach concrete anchors to concrete covered
with plaster, drywall, or other finishing material.
If mounting to concrete surfaces covered with a
finishing surface is unavoidable (not evaluated by
UL), the finishing surface must be counterbored
as shown below. Be sure concrete anchors do not
pull away from concrete when tightening screws. If
plaster/drywall is thicker than 5/8", custom fasteners
must be supplied by installer (not evaluated by UL).
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
CUT
AW
AY
VIEW
A
CORRECT
plaster/
dry wall
concrete
INCORRECT
plaster/
dry wall
concrete
A
G
F
E
A
CONCRETE CEILING
ARROW ON TOP
OF PROJECTOR
MOUNT ASSEMBLY
INDICATES FRONT
OF MOUNT
1
3
G
Drill holes and insert anchors (
G
).
Place plate (
A
) over anchors (
G
) and secure with screws (
F
).
Tighten all fasteners.
2
G
A
F E
concrete
surface
