Extinguishing Panel - USER MANUAL
Approved Document No: GLT.MAN-132
PAGE 8
Issue : 1.2 Author: NRPJ Date: 06/10/2010
First Stage Alarm
On detection of a “FIRE” in either Zone 1 or Zone 2, the zone fire LED will be
illuminated and the internal buzzer will be on. The first stage LED and first stage
sounder will be on. The first stage relay output will be active.
To silence the sounder, turn the keyswitch to ON position, and press silence button.
The pan
el’s internal tone and fire LEDs will remain active until the cause of the alarm
has been removed, and the panel has been reset
A first stage alarm can be created manually by turning the keyswitch to the on
position and pressing the 1
st
STAGE ALARM button.
A first stage alarm can be silenced & reset when the panel is in automatic or manual
mode.
Second Stage Alarm
As soon as a “FIRE” is detected in the second Zone, the second stage alarm is
initiated. The second stage sounder will be pulsed on for 1 second, then off for 1
second. This will be repeated as the timer counts down. The two-zone alarm LEDs
will be illuminated as well as first stage alarm, second stage alarm and Gas Imminent
LEDs. The second stage cannot be silenced and after a delay period, (Set by the the
installer) the extinguishing output will be initiated releasing the extinguishing agent,
and the second stage sounder will now be on constantly. This will be followed by the
“GAS FIRED” indication, indicating that the extinguishing agent has been released.
Once the second stage alarm has been initiated, it is advisable to evacuate and Seal
the protected area prior to the release of the extinguishing agent.
Also, the operation of the Yellow
“Manual Release” call point will initiate the second
stage alarm. To do this, lift the flap and push the operating element.
A second stage alarm can only be silenced & reset when the panel is in manual
mode.
Hold / Abort a Second Stage Alarm
If the hold input is activated during a second stage alarm, the second stage sounder
will now pulse on for 0.5 seconds, then be off for 2 seconds, and will repeat. The
counter will be reset to it`s programmed value and the panel will restart it`s
programmed countdown when the input is released. If an abort input is used, the
panel will abort the gas release, and the panel will need to be reset.
Manual Mode
In this mode operation, Zone Fire and Fault alarms are still in operation, and first &
second stage sounders will operate, but the bottle output to the extinguishing agent
will not operate.