VESDA VLF-500 Product Guide
VESDA by Xtralis
32
www.xtralis.com
6.3.2
Detector control buttons
Icon
Button
Use
Description
Reset
Resets the system and
resumes normal operation.
Press and hold down this button to test
the function of LEDs on the unit.
To enable or lockout this button Xtralis
VSC software is required.
Release this button to clear latched
faults and alarms. Alarm and fault lights
will switch off, and if the system is still in
alarm or fault mode, the lights will
reappear after the appropriate delay.
Disable
Disables the fire relay
outputs from actuating and
reports a fault.
Pressing Disable for 6
seconds will put the
detector into Stand-by
mode.
This button allows the operator to toggle
between disable and normal modes.
When disabled smoke and air flow are
not reported to the system (e.g. FACP).
To enable or lockout this button Xtralis
VSC software is required.
The fan continues to run when VESDA
VLF is disabled but stops when it is in
stand-by mode.
Instant Fault Finder Indicates current active
faults on the detector.
Pressing and holding in the Reset button
and the Disable button together will show
the fault type, by number, on the Smoke
Dial.
Refer to Section 6.4.3 on page 34 for the
fault definitions.
Fire 1 Test
Simulates a Fire 1
condition and the alarm
relay is activated after the
appropriate delay.
Note:
This will initiate
a Fire 1 Alarm.
By default this button is locked out. To
activate this button Xtralis VSC software
is required.
Note:
Notify the monitoring authority
before testing commences.
To activate, press and release the Fire 1
Test button. All the segments of the
Smoke Dial, and alarm conditions up to
Fire 1 are activated (after the configured
delay period). Press the Reset button to
stop the test and clear any latched
alarms.
Note:
Remember to return the
system to normal mode after
the test is complete.
Table 6-1: Detector Buttons
