Bosch FAD‑420‑HS‑EN Manual Del Usuario página 58

58 en | Installation
Figure 4.9: Sample tube and ventilation tube
2.
Figure 4.10: Airflow direction
3.
Figure 4.11: Position of sample tube and ventilation
4.
2019.02 | 9 | F.01U.033.733
l Ventilation tube
m The ventilation tube must be open at
both ends
Remove the ventilation tube and sample tube from the box. Check whether the end plug
is inserted into the sample tube.
p Airflow direction
r Sample tube
The direction of the airflow must be taken into account when installing the sample tube!
The extraction holes must face into the airflow.
p Airflow direction
r Sample tube
If the detector was installed according to housing position 2 , page 54, then the
ventilation tube should be positioned downstream of the sample tube.
n Sample tube
o The end plug must be inserted
s Extraction holes
t Ventilation tube
Installation Guide
Duct Smoke Detector
Bosch Sicherheitssysteme GmbH