Federal Signal Corporation 300X Consignes Pour L'installation Et L'utilisation page 5

6. Reattach unit to its mounting bracket with the two 1/2"-13 hex head
bolts, flat washers and lockwashers previously removed. Position speaker so as to
obtain desired sound coverage then tighten these bolts securely.
7. Reattach the lanyard to the cotter ring and mounting bracket. Check to
verify that it is securely attached to both the cover and the mounting bracket. Loosen
and remove the threaded cover by turning it counter-clockwise. Allow the cover to hang
by the attached lanyard.
Property damage, serious injury, or death could occur if the machined seal-
ing surfaces are damaged on this product. To maintain the effectiveness of
explosion-proof enclosure, be careful to avoid damaging the machined sealing
surfaces of cover and housing.
8. Route wires through the 1/2" NPT threaded openings into the SelecTone
unit in accordance with National and local Electrical Codes. Wire size depends upon the
operating current and the distance from the power source.
9. Before reinstalling the housing cover, read paragraph C, Electrical Con-
nections below and make necessary connections.
C. Electrical Connection.
To avoid electrical shock, do not connect wires when circuits are energized.
National Electrical
tion of these models. All electrical wiring must be routed through approved conduit and
fittings as specified.
1. Power Connections.
Use only 12 to 18 AWG (2.5 – 1.0 mm
no more than 0.25 inch (6 mm) of wire insulation from the ends of the power leads. If
stranded wire is used, be sure that there are no loose strands outside the connector
plug that could touch the adjacent lead and cause a short circuit.
a. 24V AC/DC models.
For 24VDC operation, connect the positive lead to the (+) terminal and
the negative lead to the (-) terminal of the connector plug as shown in figure 2.
For 24VAC operation connect the line (hot) power source wire to the
terminal marked "L". Connect the common (neutral) power source wire to the terminal
marked "N". See figure 2. If required by local building codes, connect the earth ground
wire to the green screw threaded into the interior of the enclosure.
b. 120/240 VAC models.
Set the voltage selector switch (SW1) to the desired source voltage. See
figure 2.
Codes as well as local codes must be adhered to in the installa-
) wire for the power connection. Strip
2
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