Federal Signal Corporation Pathfinder Installation And Maintenance Instructions Manual page 6

Chapter 1: Safety Messages for Installers and Operators
• Federal Signal siren amplifier/relay modules and speakers are designed to work together as a
system. Combining a siren and speaker from different manufacturers may reduce the warning
effectiveness of the siren system and may damage the components. You should verify or test your
combination to make sure the system works together properly and meets federal, state and local
standards or guidelines.
During Installation
• Do NOT get metal shavings inside the product. Metal shavings in the product can cause the
system to fail. If drilling must be done near the unit, place an ESD approved cover over the unit to
prevent metal shavings from entering the unit. Inspect the unit after mounting to be sure there are
no shavings present in or near the unit.
• 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. If
wiring is shorted to vehicle frame, high current conductors can cause hazardous sparks resulting in
electrical fires or flying molten metal.
• Be sure the siren amplifier/relay module and speaker(s) in your installation have compatible
wattage ratings.
• In order for the electronic siren to function properly, the ground connection must be made to the
NEGATIVE battery terminal.
• Sound output will be severely reduced if any objects are in front of the speaker. If maximum
sound output is required for your application, you should ensure that the front of the speaker is
clear of any obstructions.
• Install the speaker(s) as far forward on the vehicle as possible, in a location which provides
maximum signaling effectiveness and minimizes the sound reaching the vehicle's occupants.
Refer to the National Institute of Justice guide 500-00 for further information.
• Mounting the speakers behind the grille will reduce the sound output and warning effectiveness of
the siren system. Before mounting speakers behind the grille, make sure the vehicle operators are
trained and understand that this type of installation is less effective for warning others.
• Sound propagation and warning effectiveness will be severely reduced if the speaker is not facing
forward. Carefully follow the installation instructions and always install the speaker with the
projector facing forward.
• Do NOT install the speaker(s) or route the speaker wires where they may interfere with the
operation of airbag sensors.
• Installation of two speakers requires wiring speakers in phase.
• Never attempt to install aftermarket equipment, which connects to the vehicle wiring, without
reviewing a vehicle wiring diagram available from the vehicle manufacturer. Insure that your
installation will not affect vehicle operation and safety functions or circuits. Always check vehicle
for proper operation after installation.
6
Pathfinder
TM