VESDA VLC-400 Product Guide
VESDA by Xtralis
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www.xtralis.com
9.2
Replaceable items procedure
There are only two items, the air filter cartridge and the aspirator, that may be field replaced/serviced on the
VESDA VLC-400 detector. All other items should be returned to Xtralis for maintenance.
9.2.1
Changing the air filter cartridge
A recessed filter screw in the housing retains the filter cartridge. Ensure that the screwdriver is properly
located in the screw before applying any torque to avoid damage to the cartridge.
Legend
A
Filter Cartridge
B
Screw
Figure 9-1: Air Filter Cartridge Location
Remove the air filter cartridge.
A switch operates when the filter is removed and the fault “Filter removed” is reported in the ‘Event log’ for that
detector and the panel. When the filter is replaced a “Filter replaced but not acknowledged” fault is reported in
the ‘Event’ log for that detector.
If a new filter has been installed, the filter life must be reset to zero. Use the ‘Reset Filter Settings’ option in
the Device menu in Xtralis VSC.
Alternatively if the same filter is refitted, the fault can be cleared. In the Device menu in Xtralis VSC, select
No to the prompt “Has a new filter been fitted?” in the ‘Reset Filter Settings’ option. The existing filter life is
continues to be monitored.
