VESDA VLF-500 Product Guide
VESDA by Xtralis
44
www.xtralis.com
9.2
Maintenance Schedule
To maintain the VESDA VLF-500 in peak working order follow the maintenance standards for your region and
where no recommended standard exists see the table below. Please note, for environments that experience
high levels of contamination, the frequency of maintenance will need to be increased. Maintenance should be
conducted by a qualified service contractor.
Action
Frequency
Details
Check pipe
network
6 monthly
Check pipe connections to ensure all pipe runs are intact and that
pipe supports and joints are firm.
Airflow
Yearly
Check air flow via Xtralis VSC software. Compare the current
reading with previous reading to determine if the flow rate has
reduced.
Smoke test
Yearly
Conduct smoke tests and verify detector performance (refer to the
VESDA System Design Manual).
Compare response times with those previously recorded and
investigate any discrepancies.
Check power
supplies
Yearly
Test in accordance with suppliers instructions.
Filter replacement
2 Yearly
Recommended change out period. The filter status can be checked
via Xtralis VSC software. Depending on the environment, the filter
may require more frequent checking.
Clean sampling
holes
As necessary
If frequent low flow faults occur clean the sampling pipe network by
back flushing (refer to the VESDA System Design Manual).
Table 9-1: Maintenance schedule
