Commissioning
ASD 531, Technical description, T 140 416 en
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7.7
Testing and checking
In addition to the sampling pipe checks set out in Sec. 7.1, the correct transmission of alarms (zone and line) on the FACP is
to be checked by triggering faults or alarms on the ASD 531. These tests are to be entered in the commissioning protocol (see
also Sec. 7.8).
Notice
Block or deactivate fire incident control and remote alerting on the superordinate FACP.
Reset the ASD 531 between each check (preferably on the FACP, as a reset on the ASD does not reset the
FACP). Likewise, after the tests the original state of the sampling pipe has to be restored (open taped samp-
ling holes, close maintenance holes).
Test event
Procedure
Action
Checking the airflow moni-
toring
Tape up the sampling holes (adhe-
sive tape); number depends on the
pipe configuration
•
As soon as the resulting change in the airflow is exceeded by ±20%
(can be checked via the airflow indication) the
Fault
LED begins to
flash.
•
When the
LS-Ü
delay expires (300 s), the ASD triggers a fault
fault on FACP.
Check alarm release
Apply smoke to maintenance sam-
pling hole or sampling hole, see
Sec. 7.7.1.
•
ASD triggers an alarm
alarm on FACP; check correct alarm
transmission (zone/area triggering) on the FACP.
•
If there are pre-signals they are also actuated
7.7.1
Checking the alarm release
When
commissioning
and after any changes (repairs) to the sampling pipe the alarm release
must
take place from the
last
sampling hole
on the pipe branch. This tests the uniformity throughout the entire sampling pipe.
To test alarm actuation during regular
maintenance and service work
, the ASD 531 can be made to actuate on the
mainte-
nance sampling hole
. Because the sampling pipes are continuously monitored for proper functioning, testing via the sampling
pipe is normally not necessary. Once the test is completed, re-seal the maintenance sampling hole (using adhesive tape or
maintenance clip).
If testing via the maintenance sampling hole is inadequate, testing can be carried out via the sampling pipe as follows:
•
Point-by-point testing of the sampling holes; apply smoke directly to individual or several sampling holes. Apiarist smoke or
wax/joss sticks are suitable for this purpose.
•
Area-wide testing of the sampling pipe; area-wide testing of the sampling pipe using fire tests is reasonable and practicable
only following EN 54-20.
Danger
If genuine fire tests are to be carried out, the relevant local authorities (fire service) are to be consulted be-
forehand; the tests themselves are to be carried out by trained specialists (manufacturer) only.