Federal Signal SST-MV Manual De Instalación Y Mantenimiento página 3

• Read and understand all instructions before installing or operating this equipment.
• Do not connect this unit to the system when power is on.
• Optimum sound distribution will be severely reduced if any objects are in front of the
speaker. You should ensure that the front of the speaker is clear of any obstructions.
• All effective warning speakers produce loud sounds which may cause, in certain situations,
permanent hearing loss. You should take appropriate precautions such as wearing hearing
protection.
• All effective warning speakers produce loud sounds, which may cause, in certain situations,
permanent hearing loss. The device should be installed far enough away from potential
listeners to limit their exposure while still maintaining its effectiveness. The OSHA Code
of Federal Regulations 1910.95 Noise Standard provides guidelines which may be used
regarding permissible noise exposure levels.
• After installation, ensure that all bolts and threaded joints are tightened.
• Establish a procedure to routinely check the sound system for proper activation and operation.
• Provide a copy of these instructions to the Safety Engineer, operator(s) and maintenance
personnel.
• File these instructions in a safe place and refer to them when maintaining and/or reinstalling
the device.
Failure to follow all safety precautions and instructions may result in property damage, serious
injury, or death to you or others.
The Model SST-MV can be attached to any relatively flat surface or to a variety of electrical
wall boxes. A four position plug is supplied for electrical connection. In addition, two
#8-32 x 3-1/4 inch slotted machine screws are included to attach the unit to a four-inch
square electrical box. After the mounting method and location have been selected, follow
the procedure in the appropriate paragraph of this section. The speaker portion of SST-
MV is not shown in the installation figures for clarity. The speaker and its base assembly
provides three degrees of freedom, allowing the horn to be oriented for any coverage
pattern desired. Adjustment is accomplished with hand tightened nuts which require
minimal torque to maintain horn position. When mounted outdoors, ensure that the rain
guard on the swivel base is oriented to protect the speaker wire openings from falling rain.
Always provide sufficient support of the mounting boxes used to mount the horn. Failure to do
so may result in property damage, serious injury or death to you or others.
1. Weatherproof Mounting in WB Box
a. See Figure 1. Insert the two #8-32 x 3-1/4 inch slotted pan head screws into the
SST-MV base at opposite corners.
b. Install the adapter gasket in the adapter, and place the adapter with installed gasket
over the screws inserted in step a.
c. Secure the SST-MV base/adapter assembly in the WB with the pan head screws as
shown in Figure 1.
2. Wall Mounting
Wall mounting the SST-MV in an NB or NBL box is accomplished using the adapter,
adapter gasket, and the #8-32 x 3-1/4 inch pan head screws as shown in Figure 2.
a. See Figure 2. Insert the two #8-32 x 3-1/4 inch slotted round head screws into the
SST-MV base at opposite corners.
b. Install the adapter gasket in the adapter, and place the adapter with installed gasket
over the screws inserted in step a.
CAUTION
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