Gmxw0 Wall Mounting Kit - Bosch ISN-SM-30 Application Manual

Installation - Accessories
4
4.4

GMXW0 wall mounting kit

The GMXW0 wall mounting kit is a recess box for flush-mounting seismic detectors in concrete
walls and ceilings.
The mounting kit contains a polystyrene mould mounted on a stainless steel back plate. The
GMXW0 is installed in the wall/ceiling prior to the concrete being poured, and the polystyrene is
then removed leaving a space for the detector.
It is important to consider cable access within the concrete walls or ceiling. Two holes are provided
for conduit access for the connection cables.
For the best detection results from the seismic detector, connect the steel plate of the GMXW0 to
the steel supports within the structure of the wall or ceiling.
The GMXW0 is secured to the front of the temporary wooden shuttering via the large bolt and as-
sociated wing nut.
Figure 4-11: GMXW0 during installation
Connect the back plate of the GMXW0 to the steel supports within the structure for the best
acoustic coupling.
When the concrete has set, the wooden shuttering can be removed to reveal the polystyrene
mould.
The mould must be fully removed to reveal the mounting plate and the conduit access points to the
left and right hand sides. The mounting plate contains pre-drilled and tapped M4 mounting holes for
the detector and for the GMXS1 test transmitter.
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Bosch Security Systems Seismic Detectors Application Guide I-200153-1
04.2016