Bosch FAS-420-TM-R Operation Manual page 60

60 en | Installing the Aspiration smoke detector
Figure 5.2: Bore distances of FAS-420-TM housing base
1.
2.
2020.04 | 5.1 | F.01U.088.878
140
122
First, clearly mark the fixing points on the installation position provided on the
equipment. To guarantee a safe and low-vibration hold, the housing base must be secured
with four screws.
Fix the housing base to the surface by means of four screws in accordance with the
mounting type. Make sure that the housing base is not fixed under mechanical tension
and that the screws are not tightened too much. Otherwise, the device might be damaged
or undesirable secondary noise may arise.
Operation guide
Aspiration smoke detector LSN improved
Bosch Sicherheitssysteme GmbH