Siemens FDA241 Series Manual page 4

If connecting the Siemens ASD directly to a Siemens FDnet, C-NET loop, the FDCC221S communication card must
be ordered as a separate item. (S24218-A201-A2)
Building Technologies
CPS Fire Safety
Normalize smoke button
This function is used to determine the nominal clean air value for the detector. This
is required to be done during commissioning. The nominal value which is deter-
mined during the normalize period is then the set point value for the smoke monitor-
ing during normal operation.
To use this function, use a thin tool such as a paper clip or jeweller's screwdriver,
place the tool into the hole and push the normalize smoke button.
This function could be manually stopped by pressing the Normalize button again.
During the Normalization period the detector is still actively monitoring for smoke
using the default values.
Note:
The detector indicates over FDnet/C-NET) that normalizing is active (no distinguish-
ing between smoke and air flow)
Reset:
Pressing the Reset button, resets all latched states of the detector. Latched states
can be fire alarms or airflow out-of-range events. If a fire alarm is reset the associ-
ated relay is also reset.
Note:
If the detector is connected to FDnet, the alarms and associated relays are set to
non-latching
USB Connector:
The mini USB connector is used connect to a laptop when required to re-configure
the detector using the ASD Configuration Tool F-FXS2051
LED Test Function:
Press and hold the "Buzzer silence button" for 5 seconds.
The detector will cycle through a full LED display to check the operation of all LEDS
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