EXPro Installation Manual
Approved Document No: GLT-212-7-1
Page 23
Issue: 1.7 Author: MF/NRPJ Date: 05/07/2021
MANUAL EVACUATION
The first stage sounders can be started by activating the controls and pressing the START/STOP
1
st
Stage Sounder Button. The first stage relay is NOT operated by this action. The common fire &
first stage sounder active LEDs will light.
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. The first stage repeat output will also be active.
To silence the sounder, activate the controls, and press START/STOP 1
st
Stage Sounder Button.
The panel’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 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 Activated LEDs.
The second stage cannot be silenced and after a delay period, (user programmable) 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. Operation of the “Manual Release” call point
will initiate the second stage alarm. Lift the flap and push the switch up to activate.
A second stage alarm can only be silenced & reset when the panel is in manual mode.
ABORT A SECOND STAGE ALARM
If the abort input is used, the panel will abort the gas release, and the panel will need to be reset.
Note that after the pre-release timer has finished, and the bottle output has activated, the abort
input will have no effect.
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