2
Step 5. Press the fire dome assembly into the previously prepared hole in the ceiling.
Each leg should settle on the collar.
Push up the dome assembly.
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.
Dome mounting
bracket
3. INSTALLATION
Step 1. Using the supplied paper pattern as a guide, open a
156 mm (6.14") ±3 mm (0.12") mounting hole in the
ceiling panel.
Ceiling
ø156 ±3 mm
(ø6.14" ± 0.12")
Max. 30 mm (1.18")
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.
Fire dome
ø20.5 mm (0.81")
knockout hole
(4 places)
Dome mounting bracket
Step 3. Loosen the wing nut.
Fire dome
Dome mounting
bracket
Important
Unscrew the wing nut until it reaches
the end of the screw shaft.
[Cross-Section View]
[Interior View]
Wing nut
Step 6. Push in the dome mounting wing nut.
Firmly push the wing nut and screw shaft
in the direction indicated by the arrow.
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).
Wing nut
A
A
Step 4. Feed the speaker cable through the rubber grommet into the dome interior.
