Federal Signal Corporation Personnel Alerting System, Installation And Operation Instructions Manual

Page: 57 / 84

INSTALLATION
57
5.5 Electrical Connections
Install the siren electrical system in
compliance with local electrical codes and
NEC recommendations. Federal Signal
recommends that all user-installed conduit
connections enter from the bottom of the
UVIC cabinet using the supplied conduit
knockouts. Disconnect all power and read
all warnings at the beginning of this manual
and on the batteries before making
connections.
Grounding Requirements
1. The UVIC cabinet must be properly
connected to an earth ground. The
cabinet contains an external 3/8” ground
stud for making this connection.
Alternatively, a DIN mounted grounding
block is provided inside the UVIC
enclosure.
2. If an outdoor antenna is used, a
separate antenna ground must be
installed.
Externally installed antennas require a
dedicated ground to either a ground rod
or building steel
below grade in addition
to the UVIC cabinet ground.
AC Power Connections
Caution
Verify the AC voltage requirement for the
UVIC model being installed. 240VAC
versions of the UVIC controllers have a
“240” suffix in the model number shown on
the label located on the cabinet door. All
other UVIC models are to be wired to
120VAC.
DIN Rail Terminal Blocks
These points provide a convenient location
for making electrical connections. A small
screwdriver must be pushed into the square
opening in the terminal block to open the
contact of the block. With the wire inserted,
the block will clamp the wire with a spring-
loaded connection when the screwdriver is
removed from the terminal block.
Each terminal block accepts bare 12-14
AWG wire. The two fused terminal blocks
labeled F1 and F2 have a built-in
disconnect that flips open, disconnects the
circuit, and provides access to the fuse
located inside the terminal block.
Wiring Guidelines for 120VAC Electrical
Service
1. Install a dedicated 15A breaker in an
existing breaker panel or install a new
breaker panel if necessary for the UVIC.
2. Install conduit from the beaker panel to
a conduit entrance in the bottom of the
UVIC.
3. Route user-supplied 12-14 AWG wires
(1 black, 1 white, 1 green - optional)
through the conduit from the UVIC
Cabinet and the fused breaker panel.
4. Connect the white neutral wire from the
breaker panel neutral to the fused DIN
rail mounted terminal block labeled F1-
NEUTRAL in the UVIC control cabinet.
5. Connect the black line wire from the 15A
breaker to the DIN rail mounted terminal
block labeled F2-Line in the UVIC
control cabinet.