Installation To Concrete Ceilings - PRG UNV Manual De Instalación, Funcionamiento Y Servicio

Installation to Concrete Ceilings

• 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 hard-
ware and components.
Place projector mount assembly (A) on ceiling as a
3
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 (C), two flat washers (F), and two
#14 x 2.5" wood screws (D) as shown.
Note: Mounting slots on projector mount assembly allow
for 30° (±15°) of rotation before fully securing wood screw.
Tighten wood screws (D) using 3/8" (10 mm) socket
wrench, phillips screwdriver or 10 mm open end wrench
until projector mount assembly (A) is firmly attached.
Skip to step 5.
WARNING
• Tighten wood screws firmly, but do not overtighten.
Overtightening can damage screws, greatly reducing
their holding power.
• Never tighten in excess of 80 in. • lb (9 N.M.).
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, the finishing surface must be
counterbored as shown below. Be sure concrete
anchors do not pull away from concrete when tighten-
ing screws. If plaster/drywall is thicker than 5/8",
custom fasteners must be supplied by installer (not
UL approved).
INCORRECT
A
plaster/
dry wall
WARNING
CORRECT
concrete
A
plaster/
dry wall
C
A
F
D
1
Drill holes and insert anchors (C).
2
Place plate (A) over anchors (C) and secure with screws (D).
3
concrete
Tighten all fasteners.
CONCRETE CEILING
ARROW ON TOP OF
PROJECTOR MOUNT
ASSEMBLY INDICATES
FRONT OF MOUNT
A
D
concrete
surface
C
C