VESDA VLI Product Guide VESDA by Xtralis
56 www.xtralis.com
7.4 Replacing the Secondary Foam Filter
To maintain the operational integrity of the detector, it is recommended that the Secondary Foam Filter be
replaced every 4 years, or when a filter fault occurs. It may be necessary to replace the filter more often where
the detector is installed in environments that experience high levels of contamination.
Remove the Secondary Foam Filter
1. Set the detector to Standby mode. Refer to Section 7.1 for further information.
2. Remove the front cover. Refer to Section 7.2 for further information.
3. Remove two secondary foam filter screws (A).
4. Remove the secondary foam filter (B).
Figure 7-4: Secondary Foam Filter Replacement
Reinstall the Secondary Foam Filter
To reinstall the Secondary Foam Filter, follow the removal procedure in reverse order and execute the "Reset
Secondary Filter Life" command in Xtralis VSC.
Caution: Do not reinstall a used filter.
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