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Planning Instruction 66571758GB0 Fire Detection 25

Sequence example 2: reset during delay

Input (e.g. MCP in alarm state)

Fire alarm device

Fire alarm device (10s delay)

Fire Output

Fire Output (10s delay)

Fire Output (12s delay)

Fire 10s 12s Re-sound

Reset

(short press)

Silence

Note!

“Silence” affects only the fire alarm device outputs.

Note!

The shortest delay is always displayed on the user interface display if more than 1 delay is activated.

6.4.3 Control group use for phased evacuation

Control groups A and B can be used to support a voice alarm fire evacuation strategy in big and/or complicated

buildings or groups of buildings.

There are numerous circumstances in which a staged fire alarm arrangement may be appropriate. One typical

application is a building with phased evacuation. In high-rise buildings, in which those closest to the fire are

evacuated in the first phase, with other areas evacuated in a series of further phases. Another application is a

progressive horizontal evacuation, e.g. in hospitals.

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Document Number 66571758GB0 49 2011

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Schneider Electric FX 3NET Guía de usuario Pagina 25