Aspiration smoke detector LSN improved Installation of the pipe system | en 85
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
Before initialization the connected pipe system, the operating voltage must be connected
again. To initialize, press the S2 flow-init button on the detector module.
– Close the housing cover.
6 Installation of the pipe system
At the very least, the pipes and fittings used for the pipe system must comply with class 1131
according to EN 61386‑1, 2004. Class 1131 requires the following of the pipe system in use:
Features Severity
Compression resistance 125N
Shock resistance 0.5kg, drop height of 100mm
Temperature range -15°C to +60°C
The pipe system must be constructed using the following pipes and the associated fittings:
Exterior diameter Internal diameter
ABS PVC*
Smoke aspiration
pipe
25mm 21.4mm 21.2mm
* PVC pipes do not correspond to the temperature range given above.
For pipe systems with long pipe feed lines (see also
Planning for long pipe feed lines, page
56
), you must also use the following pipes and the associated fittings:
Exterior diameter Internal diameter
ABS PVC
Smoke aspiration pipe 40mm 35mm 36.2mm
Notice!
When constructing the pipe system, observe the temperature range specified under
Pipe
system, page 30
in the Technical Specifications chapter.
The pipe system must be constructed according to planning specifications and taking into
account the planning guidelines (see
Planning, page 31
).
1. Shorten the pipes with a pipe-cutter (38mm) or a metal saw. Deburr the joints and clean
up the chips.
2. Before gluing, clean the adhesion points with the prescribed cleaning agent (Tangit) to
remove dirt and grease. Use the Tangit adhesive to glue the pipe transitions with the
appropriate fittings so that they are airtight.
Notice!
If halogen-free plastics must be used, the installation procedures may vary depending on the
selected material:
ABS is glued
Polypropylene (PP) is welded
Polyamide (PA) is pushed together and bolted.
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