10
Installation Instructions
CMS491/492
Adding Components
NOTE:
The CMS491/CMS492 box is designed for attaching a
component shelf at two different heights. The following
instructions refer to installing the Listed accessories CMSUNV1
and CMSUNV2.
Attach cables as shown (figure 17) using cable locks (L) to
secure cable, adjusted to proper length - allowing box to
be level, and
NOT
RESTING ON CEILING FRAMEWORK.
2
3
4
5
Attach component to shelf prior to install. Component may
be attached either on top of shelf or below shelf.
Attach components per component manufacturer
recommended method(s).
Component
Shown Below
Component
Shown Above
1
Position shelf (with component attached) into box and
hook four corner slots onto the posts of the shelf supports.
3
Hand tighten nuts (I) to secure shelf in place.
4
Attach one #10-24 thumb nut (I) to each
threaded post.
2
WARNING:
Not properly supporting box with cable hanger
system may lead to serious injury or death.
CAUTION:
Failure to properly tension cables (N) may
result in damage to ceiling tile framework.
Figure 17
Figure 19
Figure 18
Ceiling
Frame
Figure 20
Remove adjacent ceiling tiles as needed to access cable
attachment locations.
1
Installing Cable to Box Frame
Figure 16
Thread each cable (N) completely through cable lock (L)
corresponding hole in corner of CMS491/492 frame, and
completely through opposite side of cable lock (L)
(see figure 17).
Adjust cable tension until CMS491/492 frame is supported
entirely and evenly by all four support cables, but not so
tight as to distort ceiling tile framework.
Secure CMS491/492 assembly in place by feeding
#10-24 x 5/8 pan head tapping screws (G) through holes
as shown and tighten until secure against ceiling tile
framing (2 screws each on opposite sides of the
assembly).
(N)
(L)
WARNING:
Exceeding the weight capacity can result in
serious personal injury or damage to equipment! It is the
installer’s responsibility to make sure the weight of all
components attached to the CMS491/CMS492 Series
component shelf, does not exceed 25 lbs (22 kg)
per shelf
.
