2
3. INSTALLATION
Step 1. Using the supplied paper pattern as a guide, open
a 150 mm (5.91") ±3 mm (0.12") mounting hole in
the ceiling panel.
Ceiling
ø150 ±3 mm
(ø5.91" ± 0.12")
Max. 30 mm (1.18")
Step 2. Loosen the 2 screws and rotate the fire dome
counterclockwise as shown at right to remove it.
Note: To facilitate installation work, never remove
2 screws but only loosen them.
Fire dome
ø20.5 mm (0.81") knockout hole
(2 places)
Screw for safety wire
(M4 x 16)
Loosen
Rotate
Loosen
Rotate
Fire dome
Step 3. 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 4. Install the safety wire to the M4 screw on the top of the fire dome as needed.
Step 5. Feed the speaker cable through the rubber grommet into the dome interior.
2. GENERAL DESCRIPTION
TOA's PC-1865BS Ceiling Mount Fire Dome Speaker features an iron-made dome that prevents the fire from
spreading in the ceiling in case of fire.
The speaker can be easily installed using the speaker mounting spring, and the dome can also be easily
mounted in the speaker mounting hole in the ceiling panel.
The PC-1865BS is provided with a steatite terminal block of screw type.
The PC-1865BS is certified according to the European Standard EN 54-24: 2008 and compliant with the British
Standard BS 5839-8: 2008.
