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Description
Setting
Effect
Important
252/348
Siemens Building Technologies
HVAC Products
4.240 Circulating pump operation during the
legionella function
Flushing the circulation piping ensures that the legionella bacteria will also be killed in
that part of the plant.
Setting range
0 / 1
0
The circulating pump (ZuFu4, operating line 147) does not run during the time
the legionella function is performed.
1
The circulating pump (ZuFu4, operating line 147) runs during the time the le-
gionella function is performed.
If this function is deactivated, there is a risk that legionella bacteria will return from the
circulation piping to the d.h.w. storage tank right after the storage tank has been ther-
mally disinfected.
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
°C
Factory setting
1
CE1P2488en
18.10.2002
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