-3-
d. Position the support bridge through the adjacent tile opening and secure it over the tile
just cut.
e. Place the back box onto the support bridge ensuring that the four tabs in the bridge
locate into the corresponding slots on the back box (see figure 4).
f. Using pliers, turn the top section of the four tabs 1/8 turn in either direction to secure the
back box to the support bridge.
g. Install the wiring into the back box ensuring that all applicable codes are met.
h. Replace the adjacent tile, connect the wiring to the speaker (see figures 1 and 2), and
secure the speaker using the adjustable “L’ shaped clamps.
E. TESTING/OPERATING.
Under certain conditions these devices are capable of producing sounds loud enough to
cause hearing damage. Adequate hearing protection should be worn if standing within
close proximity to the device while testing. Recommendations in the OSHA Sound Level
Standard (29 CFR 1910) should not be exceeded.
1. After installation is complete, be sure to test the system to verify that each speaker operates
satisfactorily. If it is found that the volume is too low for its location, a higher wattage tap may be
selected. Carefully remove the speaker and move the receptacle to a higher wattage tap (see figures
1 and 2). Reinstall the speaker and retest.
2. After completion of initial system test, establish a program for periodic testing of this device.
Refer to NFPA 72, local Fire Codes and the authority having jurisdiction for
this information.
3. Provide a copy of these instructions for the Safety Engineer, system operator(s) and
maintenance personnel.
SAFETY MESSAGE TO OPERATORS
(Regarding the 25/70 volt model)
Even if your warning system is operating properly, it may not be completely effective.
People may not see, hear or heed your warning signal. You must recognize this fact and
ensure that your warning signal achieves its intended effect through proper testing/
training sequences within your specific application(s), or other appropriate actions.
F. MAINTENANCE.
If cleaning of the front face of this device is required, a mild soap solution is recommended as the
cleaning agent.
NOTE
Although not advised, if painting/touch-up of the grille model’s vinyl face is necessary, a
vinyl-based paint is required for coverage.
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
Failure to follow all safety precautions and instructions in this document may result in
property damage, serious injury, or death to you or others.
• Read and understand all instructions before performing maintenance on this unit.
• Periodic checks should be made to ensure that effectiveness of this device has not
been reduced because the speaker has become clogged with a foreign substance or
because objects have been placed in front of the speaker.
• Any maintenance to this unit MUST be performed by a trained electrician in
accordance with NEC guidelines and local codes.
• Never alter this unit in any manner.