Product Manual

Appendix: 3M™ Acoustic Kit Installation Guide
September 2012 – Revision 1.9 DRAFT
Page 62 of 68
3M™ Wireless Communication System Model XT-1
Installation Manual
b. If there is excess insulation, overlap it against the inside of the
first layer.
Installation Guidelines — Single Housing
Microphone and speaker are contained within a single housing. Component
installation is the same for both microphone and the speaker. The microphone
and speaker must be separated from each other by foam.
5. Ensure that the inside of the housing is clean and dry.
6. Install the 3MVibration Control Tape to the inside of the top and
side walls of the housing (fig.4).
a. Using a pair of scissors, cut one piece of tape to be
approximately 1" less than the length of the inside of the top
wall. The four pieces of tape used for the side walls can be
used as is from the kit and do not require trimming.
b. Peel and discard the release liner from the back of the tape.
c. Center a piece of tape on the inside of the top of the housing.
Locate the position of the microphone (speaker) and center a
piece of tape on the inner wall of the housing centered with
the microphone. Repeat for the opposite wall. Repeat this step
for the speaker.
7. Install the TUFCOTE® TBK Faced Foam to the inside of the housing
and over the vibration control tape (fig. 5).
a. Standard method:
• Cut one piece of foam to be positioned between the
speaker and microphone. In order for the foam to fit
securely, cut it slightly larger than the inner dimensions of
the housing. It should fit snugly between the walls of the
housing without buckling.
• Check the fit of the faced foam to the inside of the
housing, in the areas adjacent to the microphone and the
speaker. Cut into individual pieces to fit the inside of each
wall of the housing as shown in the illustration.
Alternative method:
• Form one piece of insulation into a “u” shape and position
it in the upper pan of the housing.
• Form the second piece of insulation into an upside-down
“u” shape and position it in the lower pan of the housing.
b. Peel and discard the release liner from the back of the faced
foam.
c. Align the center of the foam with the centerline of the top wall
of the cavity and then work toward the edges until the foam is
centered on the inside of the top and side walls of the cavity.
d. When positioned correctly, press the foam firmly to secure it
in place.
8. Install the ThinsulateAcoustic Insulation (fig. 6)
a. Loosely line the housing with the acoustic insulation. For the
best appearance, position the black side of the insulation
toward the outside of the housing.
b. If there is excess insulation, overlap it against the inside of the
first layer.