Document No: LT0119 F3200 Operator's Manual
Operating Instructions - Brigade Functions
Issue 2.04 29 July 2002 Page 5-7
5.5 ISOLATE ACKNOWLEDGED ZONES IN ALARM
5.5.1 FUNCTION
In FFCIF mode, pressing the "ISOL" key performs the following:
(a) ISOLATES all acknowledged local zones in the alarm list.
(b) Silences any internal sounder condition.
(c) If all zone alarms are isolated, i.e. there are no unisolated alarms, then the Local
Bells and ancillary relays will turn off.
(d) The acknowledged local zone alarms are removed from the alarm list.
(e) The Brigade Alarm relay will turn off if there are no more unisolated zones in
alarm.
(f) For a network system:
(i) For local zones, an isolate condition may be sent to other network devices
to allow the alarm to be removed from their FFCIF list.
(ii) For remote zones, depending on programming, an isolate command may
be sent to the originator of the alarm. The alarm remains in the FFCIF list
of the local panel until the originator of the alarm indicates the alarm can
be removed.
5.5.2 OPERATING SEQUENCE
Press "ISOL" key once:
- The acknowledged local zones in the alarm list will be isolated
- shown by the corresponding amber "ISOLATED" LED
indicator turning ON.
- The Local bells (if any) will be silenced so long as all alarms
are isolated, i.e. there are no unacknowledged alarms.
- The internal sounder, if on, will be silenced.
NOTES:
(a) Subsequent non-isolated zone ALARMS on the system will re-operate the alarm
indications, alarm sounder and local bells.
(b) Subsequent non-isolated zone FAULTS on the system will operate the fault
indication and steady fault sounder.
(c) To DE-ISOLATE alarm zones, FFCIF mode must be exited and the zone selected
for de-isolation. Refer to the Exiting FFCIF mode section 5.7 in this chapter and
the Zone Isolating/De-Isolating section 7.2 in Chapter 7.
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