Installation manual
For more information call your Leviton representative or the Leviton Technical Hotline at 800-722-2082
© Copyright 2001 Leviton Manufacturing Co., Inc.
8-3
8.3.2 Mounting your SMC
There are two ways to install a SMC:
1. Flush-mounting between wall studs
2. Surface-mounting
What You’ll Need to Mount Your SMC:
• Tape Measure
• Drill and bits
• Mounting screws
• Hammer
• Pencil or marker
• Shims
• Plywood or 2X4s (for surface mounting)
To flush-mount a SMC:
• Remove required knockouts from the unit prior to
installation
• Allow twelve inches of access above and below the
unit for conduit fittings, cable routings, and, if called
for, the installation of power module
• Position the SMC unit so that its top is about 5 feet
above the floor. 
• Hold the unit between the wall studs with tabs, mov-
ing it out against the studs to accommodate any dry-
wall installation
• Mark the knockout locations on the wall studs if using
side-wall knockouts.
• Remove the SMC and drill out the studs at the knock-
out locations
• Insert the SMC between the studs
• Install the wood screws that come with the SMC
through the mounting holes. Shimming may be
required if studs are warped or twisted. 
Installer’s Tip: Use the cardboard mud guard to cover
and protect the interior of the box and unterminated
cables during dry wall finishing. The mud guard will
defray damage from other contractors and workers on
the job. Store the SMC metal cover, in its original
plastic protective covering, in a safe place until ready
for trim-out.
If you surface-mount the SMC:
• Provide some structural support in the form of brac-
ing (such as 2X4s between the studs or a piece of
3/4" plywood)
• Remove any required knockouts from the back of the
box 
• Position the SMC unit so that its top is about 5 feet
above the floor. 
• Install the wood screws through the mounting holes
on the back of the unit, tightening them securely to
the plywood or framing
Be sure that a light fixture is installed near the SMC. 
8
PRE-WIRE
Installation,
Labeling and
Documentation
Pre-Wire
Installation










