9
2.
Model 2 (Flat Surface Mounting)
WARNING
Moving parts could cause severe cuts or amputation. DO NOT reach into the siren openings.
(a) Center the siren mechanism on the mounting surface, and using the mounting holes in the legs
of the mechanism as a template, drill three 7/16" holes in the mounting surface (see figure 3-3).
(b) Temporarily set the siren housing over the siren mechanism on the mounting plate. Center the
housing over the mechanism.
(c) Using the housing and the aluminum clips as a template, drill three 1/4" holes approximately
equidistant around the circumference of the housing. Lift the housing off of the siren. It will be
reinstalled later.
d) Mount the siren-base plate assembly on the mounting surface using lag bolts or nuts and bolts,
as appropriate. Do NOT replace the housing on the siren. It will be replaced later. If the siren is
mounted directly on a roof (without a platform or weight distribution mat) be sure to install
waterproof joints where the mounting bolts pass through the roof so that water does not enter the
building.
(e) Install the RC2W Motor Starter, fused disconnect switch, and other control devices as close as
practical to the siren following local electrical codes and NEC recommendations. If the siren is
installed on the roof of a building, it may be desirable to install the RC2W and other control devices
inside of the building. The unit must be installed vertically to operate correctly (see figure 3-3).
