1 1
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 combined weight
of all components attached to the CMS491C/CMS492C
extension column, does not exceed 50 lbs (22 kg).
Install four 10-24 x 1" screws (H) into projector mount
plate (2 at each end), and install projector mount plate
into position inside box (see Figure 23).
1
Once into position, drop plate down onto mounting rails.
2
Install 1-1/2" NPT or NPSM following ANSI/ASME
B1.20.1 (Schedule 40, 0.154" minimum thickness steel or
aluminium - ASTM B221) threaded extension column
(not included) into extension column support until tight,
with a minimum of four threads engaged.
3
NOTE:
The following instructions refer to installing Models
CMS491C and CMS492C, or installing the Listed accessories
CMS441 and CMS442 into Models CMS491 and CMS492,
respectively.
Projector Mount Plate and Extension Column
Installation
OPTIONAL: Install the electrical outlets as outlined in the
Installing Electrical Box and Outlets
section of this
instruction manual.
Figure 23
Figure 24
Finish Install Site
Pre-cut a ceiling tile to fit inside the drop panel framework
SIZE:
CMS491: 19 1/8” x 10 3/8”
CMS492: 19 1/8” x 22 1/8”
1
Finish frame assembly by opening four latches in door
panel dropping panel down. Slide tile (cut to size) into
location.
2
Push panel assembly back into place and rotate latches
to lock position.
3
Figure 22
NOTE:
If installing models CMS491C/492C cut ceiling tile to fill
gaps around mounting plate. Install tile trim (P) on edges of tile
that touch mounting plate, and fold trim tabs over tile.
(see Figure 21). Install tile with trim attached AFTER installing
projector mount plate.
Fold trim tabs
over tile
Ceiling tile
Installation Instructions
CMS491/492
Figure 21
