
5 of 20 ISSUED: 02-05-09 SHEET #: 202-9323-1
Installation to Solid Concrete and Cinder Block
Remove cord covers from wall arm assembly (A)
as shown in figure 1.1. Level and use wall plate as
template to mark center of holes. Drill two 5/16"
(8 mm) dia. hole to a minimum depth of 2.5" (64
mm). Insert anchors (B) in holes flush with wall.
Place wall mount (A) over anchor and secure with
wood screw (H). Make sure wall mount is level, and
tighten all fasteners.
A
H
B
WALL PLATE
• Tighten screws so that wall plate is firmly attached,
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
• 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
specifications. 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.
• Make sure that the supporting surface will safely support the combined load of the equipment and all attached
hardware and components.
WARNING
• Concrete anchors are not intended for attachment
to concrete wall covered with a layer of plaster,
drywall, or other finishing material as shown below.
If mounting to concrete wall covered with plaster/
drywall is unavoidable, plaster/drywall (up to 5/8"
thick) 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 UL evaluated).
WARNING
1
CUTAWAY VIEW
INCORRECT CORRECT
wall
plate
wall
plate
plaster/
drywall plaster/
drywall
concrete concrete
1
3
2
B
Drill holes and insert anchors (B).
Place plate (A) over anchors (B) and secure with screws (H).
Tighten all fasteners.
A
B
H
concrete
surface
SOLID CONCRETE CINDER BLOCK