Bosch FAS-420-TM-R Operation Manual page 68

68 en | Installation of the pipe system
Air sampling openings
Select the structure of the air sampling opening (aspiration boring) and the position in the
pipe system according to the project specification and taking into account the planning
guidelines.
Aspiration borings
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1.
2.
3.
Applying the aspiration reducing film sheet
Notice!
The holes of the aspiration reducing film sheet and the marking tape must be exactly over the
aspiration boring so that the opening diameter of the aspiration reducing film sheet is not
changed.
To keep the adhesive surfaces of the film sheets free of dust and grease, avoid touching them.
2020.04 | 5.1 | F.01U.088.878
Bore an aspiration boring with a 10 mm drill at a right angle to the pipe.
Deburr the boring carefully and remove chips.
Clean the boring area (across the entire span of the pipe) of grease and dust, e.g. with
Tangit cleaning agent.
Select the size of the aspiration reducing film sheet according to the specifications.
Glue the aspiration reducing film sheet to the opening.
Glue the marking tape over the aspiration reducing film sheet, in order to prevent the film
sheet from becoming detached.
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7.0
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7.0
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Operation guide
Aspiration smoke detector LSN improved
1 Smoke aspiration pipe
2 10 mm aspiration boring
3 Aspiration reducing film
sheet
4 Marking tape for aspiration
reducing film sheet
5 Fire red stripes (RAL 3000)
6 Transparent
Bosch Sicherheitssysteme GmbH