Detection In The Bypass - Bosch FCS-320-TP2 Operation Manuals

96 en | Installation of the Pipe System
Positioning the air sampling opening depending on air
speed
6.4.2

Detection in the Bypass

Notice!
For detection in airflows ≥ 2 m/s, additionally feed the exhaust from the FCS-320 back into
the airflow area. Cut the end of the air-return pipe at an angle of 45°.
Positioning the air-return pipe – example with an air-
conditioning duct (bypass)
For details on connecting the air-return pipe, please see Air-return Pipe, page 98.
For FCS‑320 planning in these applications, see Planning for Forced Airflow, page 69.
See also
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2018.04 | 2.0 | F.01U.130.926
1
2 3
1
3
Planning for Forced Airflow, page 69
Air-return Pipe, page 98
Planning for Forced Airflow, page 69
2
1/2 b
b
4
Operation Guide
Aspirating Smoke Detector
1 Aspiration pipe with air
sampling openings
2 Exhaust speed < 0.5 m/s
3 Exhaust speed > 0.5 m/s
1 Air-conditioning duct
2 Duct adapter
3 Aspiration
4 Air-return Pipe
b Width of air-conditioning duct
Bosch Sicherheitssysteme GmbH