Kidde Fire Protection 400 Series, Design, Installation, Operation, And Maintenance Manual

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General Information
July 2018 1-20 06-237518-001
1-7 SYSTEM DETECTION AND CONTROL
Detection, actuation, and control systems shall be installed, tested, and maintained in
accordance with the requirements of the authority having jurisdiction, and are not covered
under the scope of this manual.
Automatic detection, alarm and actuation (release) is preferred, provided as a dual stage
detection alarm control system. Selection of detection devices shall involve due consideration
of the involved flammables, the environment and the response time anticipated.
Means for manual release of the system shall be provided and must be located, installed, or
suitably protected so that they are not subject to mechanical, chemical or other damage that
would render them inoperative.
The control equipment shall supervise the actuating and monitoring devices and the associated
wiring and shall indicate / warn of failure of any supervised device.
Alarms or indicators (or both) shall be installed in the protected enclosures to indicate the
operation of the system, first stage alarm and second stage release alarm. The type (audible,
visual or olfactory), their quantity and location shall be such that their purpose is satisfactorily
accomplished.
Audible and visual pre-discharge alarms shall be provided within the protected area to give
positive warning of impending discharge. The operation shall be continued after discharge until
positive action has been taken to acknowledge the alarm and proceed with appropriate action.
A time delay between pre-alarm and discharge, sufficient to allow personnel to evacuate prior
to discharge shall, where required, be provided. For hazard areas subject to fast growth fires,
where the provision of a time delay would seriously increase the threat to life and property, a
time delay may be omitted if agreed by all relevant parties.
Time delays shall be used only to safeguard personnel evacuation or to prepare the hazard area
for discharge (by closing of doors or vents, shutting down equipment etc).
Inhibit switches shall be provided for protected enclosures where the concentration after a
release will be hazardous to personnel. Inhibition of a system release will not be possible;
inhibit switches to only be activated between first and second alarm (release).
Care shall always be taken to thoroughly evaluate and correct any factors that could result in
unintended system activation / release.
The release unit used for the Kidde IGS shall be listed with the fire alarm and suppression
control panel.
1-8 RELEASE MODES
The system is capable of electric, pneumatic and manual actuation and can be released by one
or more of the following methods:
1-8.1 Automatic Release
The fire detection and control panel will determine that a detector has entered the alarm state.
In response to this, the panel will initiate a visual or audible alarm. When a second detector
enters the alarm state and after the pre-set time delay has expired, the panel energizes the
solenoid valve on the master cylinder.
1-8.2 Manual Remote Release
Note: Where allowed by local Authority Having Jurisdiction.
Remote manual release can be achieved by operating the remote manual release station or
operating the manual release facility on the extinguishing control panel.