Bosch FAD-420-HS-EN Guia De Instalacion página 61

Duct Smoke Detector
8.
Figure 4.7 Foam rubber sealing rings
9.
Figure 4.8 Housing installation
10. Remove the ventilation tube and sample tube from the
Figure 4.9 Sample tube and ventilation
tube
Bosch Sicherheitssysteme GmbH
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 (see Figure 4.7).
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 (see Figure 4.8).
Do not over-tighten the screws. Over-tightening the screws
can cause the ventilation duct sheet to buckle!
box. Check whether the end plug is inserted into the
sample tube (see Figure 4.9).
Installation guide
No. Description
e Ventilation tube mounting
flange
f Ventilation tube mounting
flange
g Foam rubber sealing rings
No. Description
h Ventilation duct
i Detector housing
k #10-24 x 1 in. screws
No. Description
l Ventilation tube
m The ventilation tube must be
open at both ends!
n Sample tube
o The end plug must be
inserted!
F.01U.033.733 | 5.0 | 2011.11
Installation | en 61