Important note: If link PLK1 is fitted on the Main Control PCB (see right) triggering a manual call
point on any zones programmed for coincidence will activate the alarm sounders and outputs
immediately. Alarms from detectors will still be processed as described previously in this section.
From an installation point of view, detectors on zones assigned for coincidence should be installed in close
proximity to each other. This ensures if the user is not around to investigate the cause of the alarm, that a detector
in alarm on one zone is quickly confirmed by its neighbour on the corresponding zone in the event of a real fire.
Alarms raised in zones not set up for coincidence will be processed as normal.
Non-Latching Zones (Note: This function is non-compliant with EN54-2)
Any or all of the zones on the fire alarm panel can be set up for non-latching operation.
Alarms raised from non-latching zones are indicated as normal but when the alarm stimulus that triggered the zone
is cleared, the alarm condition at the panel automatically clears too (i.e. a manual panel reset is not required).
Note: Alarms raised on non-latching zones will not trigger the panel’s auxiliary fire and remote outputs.
Non-latching zones may be used to interconnect fire panels to prevent a ‘deadly embrace’ situation. This is a permanent
unresettable alarm condition arising from multiple fire panels simultaneously flagging latching alarm conditions.
Delays
A delay of 1 to 10 minutes can be set between the fire alarm panel being triggered to its alarm sounders and
outputs being activated. This is a particularly useful feature in public places where the nuisance and panic caused
by a false alarm must be avoided
The delay period is set by adjusting the VR1 control on the Main Control
PCB (see right) using a terminal screwdriver. Note: The same delay
period will apply to all pre-programmed delayed zones and outputs.
When an alarm occurs on a delayed zone, it is processed as normal.
However, the activation of any pre-programmed sounders and outputs is postponed until
the delay period has expired, thus allowing the cause of the alarm to be investigated by a responsible person.
During the delay period, the Output Delays light on the panel front pulses to indicate the delay is operative.
Pressing the SILENCE/RESOUND SOUNDERS button will override the delay at any time and result in any delayed
sounders and outputs being activated. Alternatively, in the event of a false alarm, pressing the CONTROL PANEL
RESET button (at access level 2) during the delay period will return the system to normal.
Important note: If link PLK1 is fitted on the Main Control PCB (see right), triggering a manual call
point during the delay period will activate any delayed alarm sounders and outputs immediately.
If link PLK1 is not fitted, triggering a manual call point will have no effect on the delayed alarm
sounders and outputs.
Test
To aid commissioning and routine maintenance checks, a non-latching ‘one man walk test’ facility is available.
When a detector or manual call point is triggered on any zone(s) in test, the alarm sounders operate for
approximately one second on and eight seconds off. This cycle continues until the cause of the alarm is removed
(either by the test smoke clearing from the detector or the manual call point being reset), at which point the zone
circuit also automatically resets. As the engineer walks around the site, additional devices on the zone(s) in test can
be checked with the momentary activation of the alarm sounders confirming correct operation.
Zones programmed for test, will be indicated at the panel by their Fault lights pulsing quickly in synchronisation
with the General Test light. Should an alarm occur on a zone that is not programmed for test, the alarm will be
processed in the normal way. All zones that are in test will have their tests temporarily suspended until the alarm(s)
from the other zones are reset. At this point zone testing may resume. In other words, the alarm will operate
correctly despite being in test mode.
Program sounders to resound or not resound
Once the sounders (AlarmSense™ and conventional) have been activated after an alarm and then silenced, it is
possible to set up the panel so that a new alarm raised from another zone resounds, or does NOT resound, the
sounders in accordance with EN54-2 {Clause 7.8d}.
Program sounders on zone circuits to be fitted or not fitted
By default, zone circuits have AlarmSense™ sounders fitted. However, it is possible to programme a zone circuit
to have sounders not fitted.
Fault diagnosis
A wide range of fault diagnosis features are available at access level 3. These are described in detail on pages 18
to 22 of this manual.
LPCB APPROVED CFP ALARMSENSE 2/4/8 ZONE FIRE ALARM PANEL
INSTALLATION & MAINTENANCE MANUAL • Approved Document No. DFU7002020 Rev 4 • Page 15 of 24
DELAY MINUTES
0
1
2
3
4 5 6
7
8
9
10
VR1
Use a small terminal
screwdriver to adjust the
delay time period.
For information on how to
assign individual zones so
the delay period applies to
them, see pages 16 and 17.
PLK1
FUNCTION
MCP/SOUNDER
PLK1
FUNCTION
MCP/SOUNDER
