Bosch FAS‑420‑TM Series Quick Installation Manual page 23

Aspiration smoke detector LSN improved
Environmental conditions
Protection category according to EN 60529
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–
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Permissible temperature range
Aspiration smoke detector
PVC pipe system
ABS pipe system
Permissible relative humidity (non-
condensing)
Special features
Sound power level (at 9 V fan voltage)
Response sensitivity (light obscuration)
Life cycle of fan (at 12 V and 24 °C)
Bosch Sicherheitssysteme GmbH
Without air return
With pipe section 100 mm/pipe bend
With air return
Quick installation guide
IP 20
IP 42
IP 54
-20 °C to +60 °C
-10 °C to +60 °C
-40 °C to +80 °C
Max. 95%
40 dB(A)
0.5 to 2.0%/m
60,000 hrs
Technical data | en 23
2020.04 | 5 | F.01U.088.879