Programming and Operating 4
Shield Fire, Safety and Security Ltd.
Shield A-XT Releasing Fire Control Panel - Installation and Operation Manual SEXTCP-OM
Revision E01.00
49 of 127
Test mode
Fire alarm systems must be tested regularly to ensure that they are functioning correctly. The system can be tested
single handed by using a test mode. When in test mode, activation of a fire alarm is automatically reset after a few
seconds to eliminate the need to return to the fire control panel to reset after every activation. Test mode is entered in a
similar way to disablements.
With the Enable Control key inserted, press the Mode button until “t” appears in the first of the seven segment dis-
plays. Then press the Select button until the required zone number appears. Pressing the Enter button will cause the
Test and Zone Trouble LEDs to illuminate indicating the zones which are in test mode. Disablements and zone tests
are cleared by repeating the sequence that is used to select them. The "db" function for example, toggles between
NACs disabled and NACs enabled.
Change mode
The mode of the system can be toggled between Manual Only and Automatic & Manual by operating the key-switch
in the extinguishant status area of the panel. When the system is in Manual Only mode, the extinguishant cannot be
released by the operation of automatic detectors.
The mode can also be changed to manual by the external mode select input or the key-switch on any status unit. Any
mode select input to manual mode will override any key-switches switched to Automatic and Manual mode.
Extract fan
When the extract function is selected by access level 2 option Ac, the extract contact in the panel and at all ancillary
boards will operate. When active the display shows a flashing dot after the Ac.display. If the panels enable control key
is switched off when the extract output is active, the display will show "ccc".
Turning on the Enable Control key will not automatically display the menu options if the "ccc" message is present.
The Ac. display can be shown by pressing the Mode button, followed by the Enter button to clear the event.
Disablements
Disablements of the fire alarm system prevent false alarm conditions when performing building maintenance or
construction.
Disable Zones
To disable zones, the Enable Control key should be inserted and the mode button pressed until “d” appears in the first
of the two seven segment LED displays. The Select button should then be pressed to select the number of the zone
which is to be disabled in the second of the two seven segment displays.
Once the desired zone is displayed, the enter button should be pressed to confirm the disablement. The Disable LED
will light and the Zone Trouble LED will light for each disabled zone.
Disable NAC Outputs
To disable NAC outputs, press the mode button to select “db” on the seven segment display. Pressing enter will
disable all NAC outputs and cause the General Disablement and NAC Trouble/ Disabled LEDs to light.
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