Bosch FAS-420-TM-R Operation Manual page 58

58 en | Installing the Aspiration smoke detector
A
FAS-420-TM installation
–
–
Turning the detection module in the cover
In order to turn the detection module in the cover of the FAS-420-TM detection unit by 180°,
proceed as follows:
–
–
2020.04 | 5.1 | F.01U.088.878
1
≥ 10 cm
Aspiration from above
Ensure that the air outlet of the aspiration smoke detector is not obstructed. Maintain a
distance of at least 10 cm between the air outlet of the FAS-420-TM and the surrounding
objects (e.g. wall).
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.
Remove the four screws (see figure below for positions).
Now turn the cover and fasten the detection module again with the four screws.
B
2
1
Operation guide
Aspiration smoke detector LSN improved
A Aspiration device
≥ 10 cm
upwards
B Aspiration device
downwards with air
outlet opening upwards
1 Smoke aspiration pipe
2 Air-return pipe
Bosch Sicherheitssysteme GmbH