Function; Access Levels; Typical Extinguishing Process - Siemens XC1003-A Operation

4.2

Function

4.2.1

Access levels

4.2.2

Typical extinguishing process

Alarm horn
Remote transmission
Reporting to fire detection system
Illuminated warning panel
Fire control
Actuator
Released
Building Technologies
Fire Safety & Security Products
The extinguishing control unit is protected by access levels against unauthorized
manipulation.
Access level 1: operation is possible at any time.
Access level 2: operation is possible only using an access code.
In Access level 1, as a rule, only the buzzer can be silenced in the event of an
alarm or a fault. All other commands can be accessed in Access level 2.
The following block diagram shows a normal extinguishing process in the basic
setting of the control unit and with an unblocked activation of extinguishing.
Slow Fast
Fire
Activated
alarm
Fig. 3 Block diagram process
An automatic extinguishing is enabled after the control unit has run through two
alarm levels "Fire alarm" and "Activated".
If a detector detects a fire in the extinguishing area (zone 1 or 2), it triggers a "Fire
alarm". The alarm horn sounds slow pulsating. In the case of "Fire alarm" the alarm
horn can be silenced and the system reset. The fire detectors from zone 3 monitor
as a rule the areas adjacent to the extinguishing area. Zone 3 can also be unused.
Slow Fast Continuous
Flooding
Hold or
abort
Structure and function
Effect of
agent
Released
Time
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12.2007