Legrand WKD ProSeries Underfloor Duct Brass Trim Flanges User Manual

Floor Box and

®

Walkerduct Pro Series

System

Brass Trim Flanges

Cat. Nos. 817B, 827B, and 837B

INSTALLATION INSTRUCTIONS

Floor Boxes with Slotted Retaining Flanges:

1. Slide head of inverted adjusting screw* into retaining

flanges for trim attachment.

2. Place trim ring over the four adjusting screws and
tighten until snug using a narrow blade screwdriver.
Tighten individual screws in small increments to
prevent binding.

3. For tile floors, cut the floor covering around the trim
ring or tile up to the ring for a flush appearance. Trim
ring may be laid over tile for a flanged look (same as
with carpet).

4. For wood floors requiring a flush look, cut an opening

(1/8" [3.2mm] deep) conforming to the ring perimeter
and recess trim ring into opening.

*NOTES:

1. Some floor coverings such as thick carpet may require the use
of the longer adjusting screws.

2. Hardware bag No. 97650A not needed for this installation.

Floor Boxes with Threaded Retaining Flanges:

1. Secure trim ring to retaining flanges using four flathead

screws* provided.

2. For tile floors, cut the floor covering around the trim ring
or tile up to the trim ring for a flush appearance. Trim ring
may be laid over tile for a flanged look (same as
with carpet).

3. For wood floors requiring a flush look, cut an opening

(1/8" [3.2mm] deep) conforming to the ring perimeter
and recess trim ring into opening.

*NOTE: Hardware bag No. 97650A needed for this installation.

Illustration Shown With 880S1 Omnibox®and 817B
Trim Flange Utilizing a Carpet Application.

Illustration Shown With 827B Trim Flange Utilizing a
Flush Tile Floor.

Walker® electrical systems conform to and
should be properly grounded in compliance with
requirements of the current National Electrical
Code or codes administered by local authorities.

All electrical products may present a possible
shock or fire hazard if improperly installed or
used. Walker electrical products may bear the
mark as UL Listed and/or Classified and should
be installed in conformance with current local
and/or the National Electrical Code.

®

Walkerduct Pro Series Presets:

1. Use a Walker insert finder (Cat. No. 480) or other electronic

locator to find center of preset. Cut and remove carpeting or
tile over preset. (Carpet may be saved for later abandoning.)
Chip out concrete exposing mudcap.

NOTE: If presets are more than 1/2" [12.1mm] below concrete, use of a hammer

drill with 1/2" chisel is recommended. Be careful not to damage preset!

2. Remove Mudcap: (See Figure 1).

A. Strike blade of screwdriver or 1/4" [6.4mm] cold chisel

along side of mudcap as shown. Top edge of mudcap
will deflect inward.

B. Pry out cap with screwdriver by positioning blade

between preset wall and deflected edge of mudcap,
or, use pliers to grab edge of cap and lift out.

Remove all debris from preset.

C. Grout around opening if concrete does not break

away cleanly.

3. Remove Knockout: (See Figure 2).

A. Insert screwdriver blade into opening in base of preset.

Push screwdriver toward center of preset, breaking tabs.
Position screwdriver into opening on other side of
knockout and break tabs to release knockout.

B. Inserting a wire hook into arched opening at center

of preset will prevent knockout from falling into duct.

Remove all debris from raceway.

CAUTION: Some sharp edges may occur along

knockout tabs. These must be deburred.

4. Important! Tighten bonding screw in base of preset.

A. Pull wires to preset and leave slack.
B. Use Cat. No. 427 Fiber Optic Loop Kit

if fiber optic cable is being installed.

5. Attach trim flange (see Figure 3).

A. Using hardware bag 97650A secure link

strap to posts in preset.

B. Install two flathead screws in opposite corners

to attach flange to link straps. Two lengths of
screws are provided to accommodate varia­tions in concrete pour depth.

6. Make splices in preset and pull wire thru connector

to final termination.
A. Wire UL Listed device

or telecommunication
devices and attach to
trim flange.

B. Attach cover plates and

complete installation
as shown.

Figure 1

Figure 2

Figure 3

Cat. No. 827B (Dual),
Cat. No. 817B (Single),
and Cat. No. 837B
(Triple) Trim Flange.

Link Strap
(Four Used for
Nonmetallic Flanges).

Cover Plates
(Order Separately).

Strike Downward Near Edge.

Flathead Screws.

See 3A

Walker Systems, Inc.
1000 Innovation Drive, Williamstown, WV 26187

IA0151 0800

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