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FUNCTIONALITY DURING A SYSTEM FAULT
A system fault is indicated when a processor controlling a function in the panel has a watchdog time out
or processor failure. In the event of a system fault the particular board affected may not be functional. The
following indications may be observed.
Display Board
System Fault LED only continous and continous buzzer sound. Display board is halted and no other
indication or control is possible. Fault relay and fault output are activated. If a fire occurs alarm sounders
and outputs will still function.
Main Board
System Fault LED continous and General Fault LED pulsing and continous buzzer sound. Main board is
halted. Fault relay is activated. No alarms may be activated on the system.
System Fault recovery
System Fault LED pulsing and General Fault LED pulsing along with a pulsed buzzer (fault tone) a system
fault has occurred and the affected board has recovered. The indication will remain until the panel is reset.
USER INSTRUCTIONS
If an alarm condition is present a responsible person should:-
1.
Check the control panel to see what has caused the system to go into alarm. This will be indicated
by a pulsing LED on the front of the control panel.
2.
Go to the area which has caused the alarm to check if a fire exists.
3.
Only when it is safe to do so should the alarms be silenced. Activate the controls by turning the
key switch or by entering the four digit code (see Activate Controls in the OPERATING section) and
press the Mute Buzzer button (3) to silence the panel buzzer and any external sounders.
4.
In the event of a false alarm look for the device that has caused the alarm. A detector will have a
red LED lit, or check to see if a call point glass is broken (if so replace the glass or call an engineer).
5.
If required the vent can be closed by pressing the (blue) Close Vent button (fig 1). (regardless of
alarm condition, this should only be done if no smoke is present.
6.
When fully satisfied that there is no alarm conditions present, return to the control panel and
Activate Controls, then press the (green) Reset button, see (fig 2). The panel should return to
normal with the green SUPPLY HEALTHY LED and the amber ACCESS LEVEL LED illuminated on
the display. Turning off Activate Controls, only the SUPPLY HEALTHY LED should be lit.
OPEN
VENT
1
2
Disable
Test
Mode
Mode
AOV Installation, Commissioning & Operating Manual
CLOSE
RESET
VENT
3
4
ENTER
Mute
Test
Buzzer
Lamps
fig 1
OPEN
CLOSE
VENT
VENT
1
2
3
Disable
Test
Mute
Mode
Mode
Buzzer
fig 2
Approved Document Ref: UI-AOV-01 Issue 7.0
33
OPERATING
RESET
4
ENTER
Test
Lamps
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