Bosch FAD-420-HS-EN Installationsanleitung Seite 62

62 en | Installation
11. The direction of the airflow must be taken into account
Figure 4.10 Airflow direction
12. If the detector was installed according to position 2 of
Figure 4.11 Position of sample tube and
ventilation tube
13. Insert the sample tube and ventilation tube through the
Figure 4.12 Installing the securing flanges
14. Place the air filters on the ends of the sample tube and
15. Now visually check the complete installation.
F.01U.033.733 | 5.0 | 2011.11
when installing the sample tube! The extraction holes must
face into the airflow (see Figure 4.10).
Figure 3.2, then the ventilation tube should be positioned
downstream of the sample tube (see Figure 4.11).
securing flanges and ensure that the locating pins align
with the designated indents. The extraction holes on the
sample tube must face into the airflow! Fit both securing
flanges and mount with the four #8-32 x 9/16 in. screws.
Tighten the screws by hand.
ventilation tube (see Figure 4.13).
Installation guide
No. Description
p Airflow direction
r Sample tube
s Extraction holes
No. Description
p Airflow direction
r Sample tube
t Ventilation tube
No. Description
r Sample tube
t Ventilation tube
u Securing flanges
Bosch Sicherheitssysteme GmbH
Duct Smoke Detector