Peerless-AV CM850-S - Installation - Manual (Page 8)

8 of 48 ISSUED: 07-22-08 SHEET #: 120-9055-3 10-05-11
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Installing to Exterior Corner Concrete or Cinder Block Wall
1
NOTE: If mounting speaker mounts to sides of
corner mount, display can be no larger than 40".
See page 16 for speaker mount installation.
Measure 1" (25 mm) from corner of wall and mark
location for inside edge of wall plate. The top
mounting slots of wall plate should be located 3.44"
(87 mm) above the desired display center as shown
in fi g 1.3 on page 6. Level wall plate (B), align to
location marked for inside edge of wall plate and
mark four slots in alignment with center of studs.
Repeat for opposite wall plate. Drill 1/4" (6 mm) dia.
holes to a minimum depth of 2.5" (64 mm). Insert
anchors (P) in holes fl ush with wall as shown (right).
Place wall plate over anchors, make sure that wall
plates are level and secure using #14 x 2.5" wood
screws (Q).
solid concrete
cinder block
Q
P P
B
Q
• When installing Peerless wall mounts on cinder block, verify that you have a minimum of 1-3/8" of actual concrete
thickness in the hole to be used for the concrete anchors. Do not drill into mortar joints! Be sure to mount in a solid
part of the block, generally 1" minimum from the side of the block. Cinder block must meet ASTM C-90 specifi cations.
It is suggested that a standard electric drill on slow setting is used to drill the hole instead of a hammer drill to avoid
breaking out the back of the hole when entering a void or cavity.
• Concrete must be 2000 psi density minimum. Lighter density concrete may not hold concrete anchor.
• Installer must verify that the supporting surface will safely support the combined load of the equipment and all
attached hardware and components.
WARNING
• Tighten screws so that wall plate is fi rmly attached,
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 fi nishing material.
If mounting to concrete surfaces covered with a
fi nishing surface is unavoidable, the fi nishing surface
must be counterbored as shown right. 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.
WARNING
1
3
P
Drill holes and insert anchors (P).
Place plate (B) over anchors (P) and secure with screws (Q).
Tighten all fasteners.
2
P
B
Q
concrete
surface
CUT
A
W
A
Y
VIEW
INCORRECT CORRECT
wall
plate
wall
plate
plaster/
dry wall plaster/
dry wall
concrete concrete