Specifications

Operating the Panel

11.1.4 Hazard Release

• Panel enters Hazard Release when the Release Timer or Manual Release Timer

expires. The correlated releasing circuit is activated.

• NAC code for Hazard Release state is steady.

11.2 General Panel Operation

• Activation of Manual Release Switch starts the Manual Release Delay Timer. The

expiration of Manual-release Delay Timer (MDT) activates the releasing circuits

consequently. Manual Release Switch overrides the Abort Switch always and Manual-

release Timer (MDT) always overrides Release Timer (RT).

• When the manual release switch is active and the panel is in the Hazard Alarm (pre-

discharge) state, Abort Switch cannot override the Manual Release Switch. Only the

System Reset key can interrupt and reset the panel and hazard area.

• System Reset will reset all circuits, including releasing circuits.

• The supervisory circuit can be optionally indicated on NAC-2 circuit. The NAC code of

supervisory circuit should be different from those of Hazard Alert or Hazard Alarm. By

default, when the NAC code for Hazard Alert is Temporal, the NAC code for supervisory

circuit is 20 BPM or verse visa. This configuration change is automatically done by the

panel. If NAC code for alert is chosen other than 20 BPM and Temporal, Supervisory

NAC code will remain unchanged during the configuration.

• In some pre-programmed modes, the Alert Rate and the Alarm Rate are configured the

same. So the action of Abort Switch does not change the NAC rate.

• AB/MR is the combination of Manual Release Switch and Abort Switch in the Agent

Release panel. Short condition means Manual Release active. Current Limit means

Abort Switch active.

• To avoid the conflict of different NAC code on the same circuit, the priority of signals are

defined as, Water-flow alarm has the highest priority, then hazard cadence. The

supervisory signal has the lowest priority.

• Soak Timer sets the time period how long the releasing circuits should be active. Upon

the expiration of soak timer, the releasing circuits will be shut off. Setting of 0 second

means the releasing circuits will be turned on without timer running. They will be shut off

upon system reset.

• Abort function is not applicable in pre-action and deluge application.