Product Manuals/Man-1088_Sigma XT_26 Page 24 of 40
Note: The panel will automatically exit test mode if there are no fire activations for 15 minutes.
15.17 Change mode
The mode of the system can be toggled between Manual Only and Automatic & Manual by
operating the keyswitch 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.
Note: The mode can also be changed to manual by the external mode select input or the
keyswitch on any status unit. Any mode select input to manual mode will override any
keyswitches switched to Automatic and Manual mode.
15.18 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.
15.19 Disablements
It is possible to disable parts of the system. This may be required if there are works going on in a
building which may cause the fire alarm system to operate in error.
15.20.1 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 Fault LED will light for each disabled zone.
Note: When viewing disabled zones, if the digit representing the zone number is flashing, it means
that there are activated devices in that zone and re-enabling it will put the control panel into the
fire condition.
The panel should be Reset before enabling any zone with a flashing digit on the seven segment
display disablement indication
15.20.2 Disable sounders
To disable sounder outputs, press the mode button to select “db” on the seven segment display.
Pressing enter will disable all sounders and cause the Disable and Sounder Fault LEDs to light.
15.20.3 Activate delays
To activate delays on zones as set in configuration options 31 to 33 and 41 to 43, press the mode
button until Ad appears on the seven segment LED display. When the enter button is pressed any
zones that are set as delayed will have their alarm outputs delayed by the time set in configuration
options C00 to C09.
15.20.4 Disable fault contact
The fault relay can be disabled by selecting configuration option C23. See section 16.
15.20.5 Disable extinguishant subsystem
The 2
nd
stage relay, 2
nd
stage alarm output and extinguishant release output can be disabled
together by selecting “
dE
” from the access level 2 options. See section 16.
15.20.6 Disable 1
st
stage contact
The first stage contact can be disabled by selecting configuration option “
dP
”. See section 16.
15.20.7 Disable 2
nd
stage contact
The Second stage contact can be disabled by selecting configuration option “
dA
”. See section 16.
