MAN1544-5
42
➢
If the agent add-on has been assigned a zone number, then the brigade and supervisory outputs
associated with that zone shall be activated (external alarm (bell), warning system, plant (ACF), ASE,
Alarm 1 and Alarm 2).
If the agent select button is operated at the ARC once the agent has been released, then the newly selected
activation circuit is operated immediately.
The interlock input can be defaulted to the ON position by an appropriate termination resistor.
If one of the two trigger zones is isolated during the sequence, then the Stage 2 outputs are switched OFF,
the Stage 1 switch positive output is switched to -24VDC and the automatic activation indicator
commences to flash.
If both of the two trigger zones are isolated during the sequence, then the Stage 1 and Stage 2 outputs are
switched OFF, and the selected activation circuit is switched OFF. The system inoperative output is
activated and the trigger zone isolated indictor is illuminated.
If the lock-off valve or service inhibit switch is activated to the ON position during the sequence, then the
sequence is aborted. This means the automatic activation indicators at the ARC and LCSs are extinguished
and the Stage 1 and Stage 2 outputs are switched OFF. The system inoperative output shall be activated.
If one or both of the two trigger zones are isolated after the agent has been released, then there is no
effect on the stage 1 and stage 2 outputs and the selected activation circuit. The system inoperative output
shall be activated. The trigger zone isolated indicator shall be illuminated.
If the lock-off valve or service inhibit switch is operated after the agent has been released then there is no
effect on the stage 1 and stage 2 outputs and the selected activation circuit and the system inoperative
output is activated
