Siemens OOH740-A9-Ex - Detector Base and Attachment Installation

5
Mounting/Installation
Required space
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Building Technologies A6V10367521_h_en_--
Fire Safety 2015-02-02
5.1 Required space
l Upon insertion of the detector, the detector base is stressed by compression,
tension and torsion. The fixing must thus be designed accordingly.
l Detector bases must be placed flat on the ceiling.
l Avoid mounting on steps, concrete ribs, etc.
l Install the detector base directly on the recessed box, or together with a base
attachment, when the supply lead is surface-mounted and the cable diameter is
more than 6 mm.
l There must be at least 50 cm of free space below and at least 2 cm to the
sides of the detector, so that the detector can be removed with the detector
exchanger.
l Contorted detector bases complicate or even impede the insertion of the
detectors with the detector exchanger.
* = min. 2 cm
*
*
*
Minimum spacing when installing detector bases
WARNING
Usi
ng non
-
intrinsically safe devices in areas at risk of explosion
Risk of explosion
● Do not use the detector exchanger and tester FDUD292 or the intelligent
detector tester
FDUD293 in areas at risk of explosion.