Bosch FAS-420-TM - Replacing the Air Filter in the Housing Base

88 en | Maintenance FAS-420-TM Aspirating Smoke Detector
F.01U.088.878 | 4.1 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
7.5 Replacing the Air Filter in the Housing Base
1. Remove the four screws from the detection module using a screwdriver and pull the
detector module out of the housing base.
2. Pull both filter brackets out of the housing base and remove the filter inserts. Carry out a
visual check for contamination and replace the filter if necessary. Then put the filter
bracket back into position.
3. Retighten the four screws on the detector module using a screwdriver.
Figure 7.2 Replacing the air filter of the FAS-420-TM
1Screws
2 Air filter bracket
3 Filter insert
FAS
-420-
TM
series
1
2
3