VESDA by Xtralis
VESDA VLC Product Guide
www.xtralis.com
37
12 Maintaining and Servicing the Detector
To maintain the VLC 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 VLC 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 your local fire authority.
Maintenance Check
Quarterly
Six
Monthly
Annual
Bi-annual
Power Supply
X
Check Pipe Network
X
Filter Inspection
X
Pipe Integrity Smoke Test
X
Check Pipe Flow
X
Clean Sampling Point
X
Flush Pipe Network
X
Table 12-1: Maintenance schedule for VLC detector
Caution:
When a VLC detector has been isolated, no fire warnings will be issued by the VLC 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
address (formerly known as a VESDA Zone).
l
Ensure that any ancillary devices dependent on the VLC is/are isolated before work is begun.
