TSA-1000
© 2008
–
2012 Telefire Fire & Gas Detectors Ltd
Revision 1.12
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12
Extinguishing
Extinguishing can start manually or by automatic operation,.
12.1
Automatic Extinguishing
After receiving an alarm from a zone or across zones that belong to the automatic
extinguishing outputs, the extinguishing process starts. In case an extinguishing delay
was defined, the delay system starts to operate. At the end of the delay the
extinguishing output is activated for (default) 20 seconds.
12.2
Manual Extinguishing
The extinguisher output can be triggered by manual operation, by pressing the Manual
Release Push Button.
12.3
Extinguishing Output
A programmable output that is configured as an extinguishing output (E) differs from an
output that is configured as an "And" matrix in several ways:
•
An extinguishing output supplies an 20 second pulse, as opposed to a regular
output that stays on until the panel is reset or silenced
•
An extinguishing output supplies a higher current
•
An extinguishing output has a higher priority when allocating currents
•
An extinguishing output can be configured to be triggered by a single input
•
And extinguishing matrix may optionally include inputs (Pressostat, Emergency
Abort, Emergency Hold, Gas flow switch, or Manual Only switch)
•
Activation of an extinguishing output will result in a notification that extinguishing
was activated in the control panel. Pressing the
Reset
key will not cancel this
indication in order to ensure extinguishing agent replacement or refill
12.4
Emergency Hold and Emergency Abort
The TSA-1000 supports emergency hold and emergency abort as per EN-12094-1.
Pressing an emergency hold switch will start one of the following sequences:
•
The extinguishing signal shall not be activated as long as the emergency hold
device is continuously operated. De-activation of the operation of the emergency
hold device after the end of the count-down shall activate extinguishing immediately.
•
The extinguishing signal shall not be activated as long as the emergency hold
device is continuously operated. The pre-discharge warning time shall be re-started
from the beginning by each release of the emergency hold device.
Pressing the emergency abort switch during quiescent state or during activation count-
down shall inhibit extinguishing release until the emergency abort device is released and
the control panel is reset by the operator.
12.5
Post-Activation Indication
After activation of an extinguishing output, the digital display will show
E#.A
with the
middle digit indicating the activated extinguishing output. For example, activating
extinguishing output 3 will display
E3.A
. Pressing the
Reset
key will not cancel this
indication, in order to verify extinguishing agent replacement or refill.
The Fault LED is also switched on.
