Bosch FAS-420-TP2 - Air Filter; Installing the Air Filter Box; Filter Change on the Air Filter Box

Aspiration smoke detector LSN improved Installation of the pipe system | en 91
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
6.5 Air filter
6.5.1 Installing the Air Filter Box
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90
Figure6.1: Boring distances of holes in base of FAS‑ASD‑WS air filter box
Filter box
– To use the filter box in the pipe system, use the two PG29 filter screw connections
supplied.
– Install these cable glands in precisely the same way as for the pipe adapter, for example.
– When installing the filter, note the throughflow direction, which is specified on the type
plate on the side of the lower part of the housing.
– Screw the air filter housing directly onto the wall with the lower part of the housing.
Installation material
Cylinder or flathead screws are suitable for wall mounting:
– Maximum thread diameter: 4 mm
– Head diameter: 5 to 7mm.
6.5.2 Filter Change on the Air Filter Box
1.
2.
A
B
C
FAS -420-TM
series
Changing the filter inserts (in fig.: FAS‑ASD‑FL Filterbox Large)
A Primary filter
B Coarse dust filter
C Fine dust filter
To replace the filter inserts, proceed as follows: