Bosch FCS-320-TP2 - Detection in the Bypass

96 en | Installation of the Pipe System Aspirating Smoke Detector
2018.04 | 2.0 | F.01U.130.926 Operation Guide Bosch Sicherheitssysteme GmbH
1
2
3
30°
Positioning the air sampling opening depending on air
speed
1 Aspiration pipe with air
sampling openings
2 Exhaust speed <0.5m/s
3 Exhaust speed >0.5m/s
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°.
1
2
3
4
b
1/2 b
Positioning the air-return pipe – example with an air-
conditioning duct (bypass)
1 Air-conditioning duct
2 Duct adapter
3 Aspiration
4 Air-return Pipe
b Width of air-conditioning duct
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
– Planning for Forced Airflow, page 69
– Air-return Pipe, page 98
– Planning for Forced Airflow, page 69