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3.
Using the mounting bracket as a template, scribe drill position marks on the mount-
ing surface. See figure 1 for mounting hole locations and dimensions.
Before drilling holes in any surface, be sure both sides of surface are clear of anything
that could be damaged.
4.
Drill holes at the previously scribed drill position marks to accommodate 1/2"
diameter screws.
5. Secure bracket to mounting surface with 1/2" diameter screws appropriate for the type
of mounting surface material.
Property damage, serious injury, or death could occur if the machined sealing surfaces are
damaged on this product. To maintain the effectiveness of the explosion-proof enclosure,
be careful to avoid damaging the machined sealing surfaces of cover and housing.
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.
8.
Route wires through the 1/2" NPT threaded openings into the housing in accordance
with national and local electrical and fire codes. Wire size depends upon
the operating current and the distance from the power source.
9.
Before reinstalling the housing cover, read paragraph C, in section III, ELECTRI-
CAL CONNECTIONS below and make necessary connections.
Electrical Connections.
C.
To avoid electrical shock, do not connect wires when circuits are energized.
Audio wires should be sized properly by your licensed installation electrician for your
service application. This cable requires a twisted shielded pair with an 18 AWG minimum
NOTE
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