Toa pc 1867fc inst original en

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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.