Xtralis VESDA VLC-500-EX, Product Manual

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VESDA by Xtralis VESDA VLC-EX Product Guide
www.xtralis.com 33
11 Maintaining and Servicing the Detector
To maintain the VESDA VLC-EX detector at its peak performance the maintenance schedule given below
should be followed. Maintenance can be conducted by the original installer, a VESDA distributor, or an
authorized service contractor. To work effectively the VESDA VLC-EX detector needs to be supported by a
well designed pipe network. The VESDA Maintenance Guide contains a schedule for pipe network
maintenance. More frequent maintenance may be necessary for harsh environments or be required by the
local fire authority.
Table 11-1: Maintenance schedule for VESDA VLC-EX detector
Maintenance Check Quarterly Six
Monthly
Annually Biennial
Power Supply X
Visually Inspect Pipe Network X
Filter Inspection X
Pipe Integrity Smoke Test X
Check Pipe Flow X
Clean Sampling Point X
Flush Pipe Network X
Caution: When a VESDA VLC-EX detector has been isolated, no fire warnings will be issued by the VESDA
VLC-EX and any fire will go undetected. Prior to any maintenance or testing:
l
Inform appropriate supervising authority about the risk associated with isolating a VESDA
detector.
l
Ensure that any ancillary devices dependent on the VESDA VLC-EX is/are isolated before
work is begun.
Note: Since the VLC-EX is designed to be applied in an environment where there is potentially a
hazardous atmosphere, it is important that all users are aware of and follow the guidance given in
the appropriate standards, including in: EN 60079-17:2007, “Explosive atmospheres. Electrical
installations inspection and maintenance” and that they also adhere to the specific rules and
regulations for the site where the product is deployed.