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