Bosch FAD‑420‑HS‑EN Manual Del Usuario página 57

Duct Smoke Detector
7.
Figure 4.7: Sealing rings
8.
Mounting
Figure 4.8: Housing installation
1.
Bosch Sicherheitssysteme GmbH
Now remove both screws.
e Ventilation tube mounting flange
f Ventilation tube mounting flange
g Foam rubber sealing rings
Place the foam rubber sealing rings on the back of the FAD-420-HS-EN on the mounting
flanges of the sample tube and ventilation tube.
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.
Installation Guide
Installation | en 57
2019.02 | 9 | F.01U.033.733