Evido C10.1, Installation And Operation Manual

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The EVID mounting system has been designed so
that, if necessary, the installation can be done from
beneath the ceiling. In some cases with a suspended
ceiling grid, however, it may be easier to access from
both the top and bottom of the ceiling tile during the
installation process. Typical installation hardware
needed for either suspended ceilings or sheetrock
ceilings is included. The ceiling speaker assembly is
held in place by mounting tabs that securely grip the
ceiling material. Input wiring is attached to a
removable terminal block connector that can be pre-
wired if necessary before speaker installation to
speed up the installation process.
INSTALLATION NOTE: USE OF OPTIONAL
ROUGH-IN ACCESSORIES
For most installations, no additional hardware is
needed. However, a two-step installation procedure
that is sometimes used for installation into sheetrock
ceilings can be made easier by the use of the
optional RR and RPK series of rough-in accessories
before the ceiling material is installed. The rough-in
accessories provide a cutout guide when many holes
are to be made in a production-line style installation
and to ensure the speakers are positioned correctly
as the holes are cut in the sheetrock. Depending on
the requirements, two types of rough-in accessories
are available.
RR Series Mounting Plates
RR series plates are made of flat sheet metal with
holes to attach to the joists or trusses of a building
structure. The holes are drilled for nails or screws at 16
inches (406 mm), 20 inches (508 mm) and 24 inches
(610 mm) on-center. The installer can drill other holes
as needed up to a maximum of 24-3/4 inches (630
mm) apart. The sheetrock installs over the plate and
the plate provides a template for a blind cutout of the
hole in the sheet rock. The ceiling material is generally
cut with a router-type cutting tool, using the plate ring
as a cutout guide. The mounting plate is illustrated in
Figure 4.
RPK Series Kits
The RPK series rough-in kit contains a RR series plate
with a standard 2 gang electrical box mounted on the
top with an attached short length of flexible conduit
which connects to the ceiling speaker conduit clamp
on the speaker’s rear terminal cover. This accessory
allows for rigid conduit to be run to the box on the
rough-in plate before the speaker or any sheetrock is
installed. After the sheetrock is installed the speaker
can be wired up and mounted all from below the
ceiling. The RPK mount system is shown in Figure 5.
INSTALLATION NOTE: CONTROLLING
VIBRATION
Because of their high performance, EVID ceiling
loudspeakers can generate substantial vibration,
which can cause buzzing in loose sections of the
ceiling structure. Depending on the character of the
ceiling tile and related components, dampening
material may need to be used under the tile rails or
the edges of the tiles to eliminate rattles.
6 EVID Ceiling Series Installation and Operation Manual
Figure 4: Speaker mounting plate
Figure 5: RPK mounting system
Installation and Wiring