Bosch FAS‑420‑TP Series - Installing the Unit

Aspiration smoke detector LSN improved Installing the Aspiration smoke detector | en 79
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
5.4 Installing the unit
Notice!
When selecting the installation location, it must be ensured that the unit displays are easily
visible.
Remember when planning that the unit fans generate a noise level of approx.45dB(A).
The installation location may not be in any door opening area.
≥ 10 cm
≥ 10 cm
A
1
2
B
FAS -420 series
FAS -420 series
Installation of the FAS-420
A Aspiration device
upwards
B Aspiration device
downwards with air
outlet opening upwards
1 Smoke aspiration pipe
2 Air-return pipe
The air outlet on the unit must not be obstructed. There must be a free area of 10cm in front
of the air outlet.
The aspiration smoke detector can be installed with the aspiration device pointing upwards or
downwards. Rotate the cover through 180° in the required direction.
– Aspiration from below
If the air-return pipe is directed upwards, it must be guaranteed that no foreign bodies or
dripping water can penetrate the air return. You should therefore use a short, downward
angled pipe.
– Mounting type MT-1
The Aspiration smoke detector is either bolted directly to the wall provided for
installation using the rear panel or installed by means of unit mounting type MT-1, e.g.
onto frames.
1
2
FAS
-420 series
FAS-42 0
series
Installing on mounting type MT-1
1 Horizontal installation
2 Vertical installation
Installation material FAS-420 Cylinder or flat head screws
– Thread diameter: max. 6mm
– Head diameter: 10mm