FireFinder
™
Installation Commissioning & Operation
Page 52
Manual Activation
It is possible to initiate a manual release whilst the module is in the auto mode.
A manual release is initiated by operating the manual release control at the FACP or on the LCS.
If an automatic release sequence has not started, then the manual release sequence proceeds as normal.
☞
Note:
the LCS inhibit control WILL NOT abort the manual release sequence.
If an automatic release sequence has started, then the manual release will interrupt the automatic release
and take over the remainder of the sequence. The following tables outline the operation.
Single Zone Activation Sequence
Manual Activation
1, 2, 3
Extinguish automatic activation LED and commence
manual activation steps 1 thru 8
4,
5
Extinguish automatic activation LED, illuminate the
manual activation LED, instigate 5 second delay,
resume at step 6
6,7 No
effect
Dual Zone Activation Sequence
Manual Activation
1, 2, 3, 4, 5
Extinguish automatic activation LED and commence
manual activation steps 1 thru 8
6,7
Extinguish automatic activation LED, illuminate the
manual activation LED, instigate 5 second delay,
resume at step 6
8,9 No
effect
Service Switch
The service switch is situated at the ACC, and when activated causes the following;
1.
Electrically isolates the activation circuitry from the agent release device
2.
Operates the System Inoperative output.
3.
The service switch is not overridden
4.
Activates an isolate condition at the FACP, which shall cause the common isolate
indicator to be lit and the brigade isolate output to be activated at the FACP and the
buzzer shall sound after 8 hours.
A manual or automatic release sequence is prevented from starting if the service switch has been operated
prior to the sequence commencing, and the sequence is aborted if the service switch is operated during
the sequence.
If the agent release module is in the manual mode, then the service switch is activated, and then the
service switch is de-activated, the agent release module will default to the automatic mode.
Lock-Off Valve
When the lock-off valve is operated, the agent is blocked from reaching the release valve. When the lock-
off valve is operated, the following occurs:
1.
Light the lock-off valve inhibit indicator at the ACC and LCSs.
2.
Operates the system inoperative output.
A manual or automatic release sequence is prevented from starting if the lock-off valve has been operated
prior to the sequence commencing, and the sequence is aborted if the lock off valve is operated during the
sequence.
Summary of Contents for SP Series
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Page 110: ...FireFinder Installation Commissioning Operation Page 104 Notes ...
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