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Fire domeDome mounting
bracket
Important
Unscrew the dome mounting thumbnut
until it reaches the end of the screw shaft.
3. INSTALLATION
Step 1.Using the supplied paper pattern as a guide, open a
156 mm ±3 mm mounting hole in the ceiling panel.
Step 2.Punch out the knockout hole in the fire dome, then
install the supplied cable entry rubber grommet in the
knockout hole.
Note:The grommet's cable entry hole is covered with a
thin membrane. Cut a hole in the membrane to
match the size of the speaker cable used.
Step 3.Loosen the dome mounting thumbnut.
[Interior View] [Cross-Section View]
Ceilingø156 ±3 mm
Max. 30 mm
Fire dome
ø20 mm knockout hole
(2 places) Dome mounting bracket
Dome mounting thumbnut
Step 5.Press the fire dome assembly into the previously prepared hole in the ceiling.
Dome mounting
bracket
Press on the dome's interior.
Caution
Since the dome mounting bracket is not placed on the
ceiling panel at this stage, as shown in the above figure,
the dome could fall if released, so continue to provide
manual support.
Step 6.Push in the dome mounting thumbnut.
Firmly push the thumbnut and screw shaft
in the direction indicated by the arrow.
Dome mounting
thumbnut
A A
The legs of the dome mounting bracket will pop open
and settle on the back surface of the ceiling panel,
providing the dome with partial support. If released, a
gap behind the collar of the dome will result (A).
Step 4.Feed the speaker cable through the rubber grommet into the dome interior.
