FIGURE 2.23: INCORRECT TUBING INSTALLATION
Room Terminator & Sound Attenuating
Tubing Installation
Room terminators and pre-assembled sound
attenuating tubes are provided in the Installation Kits.
NOTICE: Do not install terminators in a wall in which
a sharp bend in the sound attenuating tube is required
(see Figure 2.23). The result would be unacceptable noise.
OPTION: Using a SpacePak Kwik Connect Wall
Elbow (Model Number: AC-KCWE) addresses this
condition (see Figure 2.24).
In marking location for room terminator (see Figure 2.25),
the center of the terminator should be approximately 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. Verify there is at least 2" for tubing assembly
clearance all around this hole by visual inspection or
inserting a bent piece of wire to feel for obstructions.
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 spring clips to terminator plate with screws
provided in installation kit. Tighten clips until they are
close to the thickness of the material they are being
mounted to.
Assemble the room terminator to the sound attenuating
tubing by simply fitting the two pieces together and
twisting until tight (see Figure 2.24). 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 tube).
NOTICE: Do not shorten sound attenuating tube
length. The result would be unacceptable noise.
Push the free end of the sound attenuating tube through
the 4" hole until the two toggle springs on the room ter-
minator 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 2.26). 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.
.
.
T.
4" DIA.
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