SHEET METAL
TABS
END CAP
X-TAPE CAP
TO DUCT
FIGURE 2.17: PLENUM END CAP INSTALLATION
A
A
A
A
A
A
A
A
A
A
A
SOUND
ATTENUATING
TUBING
THIS RADIUS
TOO SHORT
STUD SPACE
TERMINATOR
DRY WALL
OR PLASTER
FIGURE 2.18: INCORRECT TUBING INSTALLATION
4" DIA.
5"
5"
FIGURE 2.19: TERMINATOR MEASUREMENTS
Room Terminator & Sound Attenuating
Tubing Installation
Room terminators and pre-assembled sound attenuating
tubing are provided in the Installation Kits.
NOTICE: Do not install terminators in a wall in
which a sharp bend in the sound attenuating tubing
is required (see Figure 2.18). The result would be
unacceptable noise
.
In marking location for room terminator (see Figure
2.19), the center of the terminator should be 5" from the
wall or, when installed in the corner of a room 5" from
both walls.
After marking location, drill a
1
⁄
8
" diameter hole for outlet
to be sure there is at least a 2" clearance all around the
1
⁄
8
" hole to receive tubing and connector. Adjust direction
of hole as needed, to gain this 2" clearance. After all
clearances have been checked, take a 4" diameter
rotary-type hole saw and cut a hole, using the
1
⁄
8
"
diameter hole as a pilot.
Assemble the room terminator to the sound attenuating
tubing by simply fitting the two pieces together and
twisting until tight (see Figure 2.20). If the terminator is to
be used in a floor location, then field fabricate a small
screen (1
1
⁄
2
" square;
1
⁄
4
x
1
⁄
4
20-gauge galvanized wire
screen) and place screen over opening on the back of the
terminator prior to twisting on the kwik-connect (on the
sound attenuating tubing).
NOTICE: Do not shorten sound attenuating tubing
length. The result would be unacceptable noise.
Push the free end of the sound attenuating tubing
through the 4" hole until the two toggle springs on the
room terminator snap into place.
Center the two spring clips on a line parallel to the
direction of the tubing routing from the room terminator
(see Figure 2.20). This is important since the weight of
the tubing will have a tendency to cause a part of the
terminator to pull away from the ceiling if the clips and
tubing do not run parallel.
Then tighten the screws (attached to the terminator) until
the terminator is snug against the ceiling or floor.
Do
not overtighten.
For installations with floors or ceilings
which are thicker than normal, longer toggle screws or
special mounting plates may be required.
Supply Tubing Installation
Kwik-connects, plenum take-off gaskets, plenum take-
offs and balancing orifices are provided in the Installation
Kits.
Avoid sharp bends in the supply tubing (as well as the
sound attenuating tubing). The minimum radius bend is
4" (see Figure 2.21); however, wherever possible, hold to
a larger radius.
A
TUBING ROUTING
FIGURE 2.20: POSITIONING ROOM TERMINATOR
14
