Bosch FAD-420-HS-EN Installationsanleitung Seite 217

Duct Smoke Detector
Mounting
Figure 4.8: Housing installation
1.
Figure 4.9: Sample tube and ventilation tube
2.
Bosch Sicherheitssysteme GmbH
h Ventilation duct
i Detector housing
k #10-24 x 1 in. screws
Mount the FAD-420-HS-EN on the ventilation duct and use the #10-24 x 1 in. screws to
secure onto the expanding nuts.
Do not over-tighten the screws. Over-tightening the screws can cause the ventilation duct
sheet to buckle.
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.
n Sample tube
o The end plug must be inserted
Installation Guide
Product description | en
217
2015.03 | 6.0 | F.01U.033.733