Legrand Wallduct Medical Raceway System Bodies - Manual (Page 4)

Step 1 For T-Units, X-Units, and Elbows – Unit
attaches with coupling angles similar to
standard wallduct bodies (page 2). Make
sure to use proper screw torque when
connecting bodies.
Step 1 For 2 Compartment X-Units Tunnels –
Position tunnel in X-Unit as shown before wiring
is installed. Using holes in the tunnel flange as
a guide, drill .170" dia. (#18 drill, [4.318mm])
holes through the bottom of the X-Unit.
Step 1 For 3 Compartment X-Unit Tunnels – Follow
previous instructions for X-unit tunnels. If the
partition of the adjoining wallduct sections
have not been installed prior to the assembly
of the X-unit tunnels / bridges, cut the partition
long enough to extend into the X-Unit and
abut the tunnel/bridges as shown.
If the partitions of the adjoining Wallduct
sections have been installed prior to the
assembly of the X-unit tunnels/bridges, cut
the partition pieces from excess straight body
partitions, as shown below. These pieces are
required to fit between the straight body
partitions and the tunnel / bridges of the X-unit.
When bridges overlap tunnels, secure the
bridge to the tunnel with a 3/16" pop rivet
(provided by others). Use the hole(s) located
in the bridge as a guide to drill a 13/64" [5.16
mm] diameter hole for the pop rivet. Select a
pop rivet length suitable for the tunnel material
thickness installed.
SPECIFIC INSTRUCTIONS: T-UNITS, X-UNITS, ELBOWS, AND COMPARTMENT TUNNELS
T-Units, X-Units, and Elbows are used for multiple runs of duct that come together in the same location or to make
a sharp turn at the end of one run and the beginning of another. Compartment tunnels are used to run different
feeds (power and communication, ex.) through the same duct bodies. Internal, external, and sweep elbows not
shown here are installed similar to T-Units shown below.
NOTE: Make sure to follow all bend radius requirements when
installing wires into duct.
NOTE: Using tunnels reduces your overall wire fill capacity by 50%
due to reduced area for wires in the system as a whole.
Bridge
Tunnel
Bridge
Partition
Tunnel