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Siemens ASD
Display
2
Building Technologies
Fire Safety
The FDA241/221 series of detectors are a very early warning dual wavelength
(blue & infra-red) smoke detectors designed to protect small to medium, business-
critical environments up to 800 m
The detector works by continually drawing air into sampling holes in a pipe net-
work. The air is passed into a uniquely designed detection chamber where light
scattering technology detects the presence of very small amounts of smoke.
Lower installation and service support costs
The FDA241 and FDA221 detectors can communicate directly on the
FDnet/C-NET loops (with an optional FDCC221S PCB), so there is no need for
separate relay or network connections. This reduces the cost of installation and
service. The detector acquires its loop address automatically.
Fire control panel programming (requires FDCC221S option)
The sophisticated integration on FDnet/C-NET allows for detector configurations,
maintenance and alarm/fault management to be performed centrally – at the fire
control panel. This increases control and lowers total solution cost.
Out-of-the-box operation
The FDA241 and FDA221 can be installed and commissioned out-of-the-box.
Normalize smoke density and air flow functionality, suitable default alarm and fault
thresholds makes for an easy installation.
The front panel display includes an easy to read smoke
density and airflow level bar graph, alarm, fault status and
dust indicator (FDA241 only).
When the field service access cover is open, the user has
access to the Reset, Normalize Smoke & Flow buttons and
a mini USB communication connector.
2
with the FDA241 or 500 m
FDA Series
2
with the FDA221).
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