Aspirating Smoke Detector
Technical Specifications | en
19
Bosch Sicherheitssysteme GmbH
Operation Guide
2018.04 | 2.0 | F.01U.130.926
3.5.7
Device mounting
1
2
FA
S-4
20
ser
ies
FA
S-4
20
ser
ies
Mounting for FCS-320 series Aspirating Smoke Detector
1
Horizontal installation
2
Vertical installation
The MT-1 unit mounting is used if a direct wall installation is not possible, e.g. installation on
racks.
3.5.8
Measures for Reducing Operating Noise
1
1
2
3
4
FA
S-420
ser
ies
Absorption of the operating noises caused by airflows
1
Smoke aspiration pipe
2
Flexible hose
3
Fitting
4
Vibration absorbers
Vibration absorbers
The fans of the aspirating smoke detectors cause a noise level of approx.
45
dB(A). Mounting
the FCS-320 onto vibration absorbers can effectively reduce noise transmission through the
installation elements. This results in a reduction in the noise level from 1
to 2
dB(A).
Additional operating noises may be caused by vibrations on the pipe system, which are
generated by the air flowing through it. This can be remedied by inserting a corrugated hose
(approx.
15
cm long) between pipe system and aspirating smoke detector to create a flexible
transition.
In noise-sensitive areas, the sound level can also be reduced by installing a piece of plastic
pipe approximately 100
mm long into the air outlet opening of the unit. This is done by
breaking out the pre-punched opening in the protective grille (e.g. using a small edge cutter).
Summary of Contents for FAS-420
Page 1: ...Aspirating Smoke Detector FCS 320 TP1 FCS 320 TP2 en Operation Guide ...
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