40 en | Planning Aspiration smoke detector LSN improved
2020.04 | 6.1 | F.01U.029.275 Operation guide Bosch Sicherheitssysteme GmbH
General Example
1. Selection:
Select the planning table with or without air filter,
as applicable.
Result:
Planning table and specified air filter
Select the planning table without air filter,
Planning
without filter, page 41
2. Selection:
Select the number of air sampling openings from
the planning table. Note the possible sensitivity
classes.
Result:
Specified detector module with specified setting
and alarm threshold
In the
Planning without filter, page 41
table, select
the column with eight air sampling openings (Number
of air sampling openings, 8)
3. Selection:
Select the sensitivity (sensitivity class) of the
system according to the gradation described in
Defining the response sensitivity, page 37
.
Result:
Specified sensitivity class in accordance with EN
54‑20
In the
Planning without filter, page 41
table, select
the response sensitivity you require (class A, B or C)
from the column highlighted in red. You must select
the class that corresponds to the installed detector
module and the configured sensitivity.
4. Selection:
Select other pipe components, such as a water
separator and detonation safety barrier.
Result:
Specified planning table
Select
With water separator, page 42
.
5. Selection:
Select the possible pipe length for the relevant pipe
shape and fan voltage.
Result:
Specified planning in accordance with EN 54‑20 for
the previously specified parameters
In the
With water separator, page 42
table, select
the pipe shape and fan voltage you require, and note
the permissible total pipe length.
You will find the planning tables in question in
Planning without filter, page 116
and
Planning
with air filter, page 119
.
Abbreviation Meaning CTN
DM Detector module DM‑01(05) DM-TT-01(05)
DM‑10(25) DM-TT-10(25)
DM‑50(80) DM-TT-50(80)
S Sensitivity (% LT/m)
MA Main alarm
PA Internal alarm
l [m] Permissible total pipe length in
meters
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