SAFETY MESSAGE TO INSTALLERS
OF
ELECTRONIC SIRENS
WARNING
The lives of people depend on your safe installation
and servicing of UNITROL products. It is important
to read and follow all instructions shipped with the
products. In addition, listed below are some other
important safety instructions and precautions you
should follow before installation:
Qualifications
To properly install an electronic siren you must
have a good understanding of automotive electrical
procedures and systems, along with proficiency
in the installation and service of safety warning
equipment.
Sound Hazards
Your hearing and the hearing of others, in or close
to your emergency vehicle, could be damaged by
loud sounds. This can occur from short exposure to
very loud sounds or from longer exposures to
moderately loud sounds. For hearing conservation
guidance, refer to federal, state, or local
recommendations.
OSHA Standard 1910.95
offers
guidance on
“Plermissible Noise Exposure”
.
All effective sirens and horns produce loud sounds,
which may, in certain situations, cause permanent
hearing loss.You should minimize your exposure
times and wear suitable hearing protection.
During Installation
DO NOT
connect this system to the vehicle battery
until
ALL
other electrical connections are made,
mounting of all components is complete, and you
have verified that no shorts exist.
Be sure the siren amplifier and speaker(s) in your
installation have compatible wattage rating.
In order for the electronic siren to function properly,
the ground connection must be made to a solid chassis
component and not to an insulated point.
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Sound output will be severely reduced if any objects
are in front of this speaker. If maximum sound output
is required for your application, you should ensure
that the front of the speaker is clear of any obstruction.
Install the speaker(s) in a location which provides
maximum signaling effectiveness and minimizes the
sound reaching the vehicle’s occupants.
Installation of two speakers requires wiring speakers in
phases.
DO NOT
install equipment or route wiring or cord in the
deployment path of an air bag.
Locate the control head so the vehicle, controls, and
microphone can be operated safely.
When drilling into a vehicle structure, be sure that both
sides of the surface are clear of anything that could be
damaged.
If wiring is shorted to vehicle frame, high current
conductors can cause hazardous sparks resulting in
electrical fires or flying molten metal.
After Installation
After installation, test the electronic siren, speaker
system, and light system to ensure that it is operating
properly.
Test all vehicle functions, including horn operation
and vehicle light systems, to ensure proper operation.
After testing is complete, provide a copy of these
instructions to the instructional staff and all operating
personel.
File these instructions in a safe place and refer to them
when maintaining and/or reinstalling the product.
Failure to follow all safety precautions and
instructions may result in property damage,
serious injury, or death to you or others.
