TITANUS
PRO·SENS
®
Design
06/13
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Change of direction in the pipe system can increase the flow resistance.
Light change of direction (e.g. with 90 ° pipe bends or air sampling hose) are
already approved as part of the project according to EN 54-20 or ISO 7240-
20 and need not be considered further.
If the pipe system includes 90 ° angles, the maximum overall length of the
pipe system will be reduced. In this case, a 90 °-angle corresponds to a
straight pipe length of about 1.5 m air sampling pipe.
NOTICE
Bends are to be preferred over angles. An excessive number of changes in
direction can change the detection time.
If the pipe system does not match the project planning guidelines described
here due to structural constraints. WAGNER should offer could provide indi-
vidual calculations for such a case.
Check detection reliability with activation tests in cases where use of the sys-
tem is critical. Also check whether an air flow rate is present at individual as-
piration apertures.
TIP
The fan voltage can be increased in order to reduce transport time. Make
sure that the current intake increases.
One intake line is to be allocated per detector module. The two detector
modules of a device must be evaluated independently of one another. Only
one extinguishing area may be monitored per air sampling smoke detection
system.
Direction change
Special cases
Checking
Dual detector dependenc
according to VdS 3435
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