American Dynamics SpeedDome Optima LT Installation And Service Manual page 19

Procedure
!
WARNING!
Shipping box contains a template—do
not throw the template out.
1. Tile ceilings only (Figure Chapter 2-2).
Remove the ceiling tile(s) and inspect the ceiling
frame. The frame must be capable of withstanding
9kg (20 lbs) of weight and the forces generated as
the dome pans and tilts.
!
WARNING!
If ceiling frame cannot support dome,
ask building maintenance to install
additional ceiling supports.
All ceilings. Using the template, scribe a 35.6cm
(14") hole in the ceiling or tile. Cut out the hole.
2. Install the "Z" supports.
Place "Z" supports (a) on the ceiling's top surface.
For tile ceilings: Make sure the edge of the supports
rests flush with edges of tile.
Figure Chapter 2-2. Installing "Z" support
c
i
h
S
j
S
b
f
a
e
d
g
Cables
Mounting
tabs
SPEEDDOME LT
2-4
INDOOR INSTALLATION
3. Install the "L" supports.
Place the two "L" supports (b)—cut to length, if nec-
essary—over the threaded studs of the "Z" supports
and fasten together using four washers and four
wing nuts provided (c).
4. Attach the adapter plate to the housing.
From inside the housing, insert the four screws (d)
provided through the holes in the top of the housing
and into the adapter plate (e).
5. Install spacers.
Place enough spacers (f) over each stud in the
adapter plate to compensate for the ceiling
thickness.
6. Install the housing into the hole in the
ceiling.
With its three mounting tabs in the up position, insert
the housing into the ceiling hole until the studs in the
plate fit through the slots in the "L" supports.
7. Secure the adapter plate to the "L"
supports.
Bring the three mounting tabs of the housing down
and tighten their screws to secure. Then secure the
plate to the "L" supports using washers (g) and wing
nuts (h).
8. Connect the safety chain to the "L"
supports.
Using an S-hook (i), hang safety chain (j) from a
strong ceiling member and, using a second S-hook,
connect the other end of the chain to one of the "L"
supports.
!
WARNING!
Keep chain as taut as possible! Close
ends of each S-hook!
DO NOT use sprinkler or fire control
system when securing the safety
chain!
9. Feed cables through a hole in the side of the
housing.
Feed video and multiconductor cables through one
of the two holes in the side of the housing. Then
cover all openings in the housing with the aluminum
tape supplied. The housing is now ready for chassis
installation (go to "Chassis Installation," page 2-8).