Adjustment - Manual Operation - Wilo SiFresh Einbau- Und Betriebsanleitung

10.3

Adjustment - Manual operation

Installation and operating instructions • Wilo-SiFresh • Ed.02/2023-08
Temperature for system flush
To prevent bacterial growth, the water temperature must not exceed 25 °C (DIN EN 806-2).
When the water temperature reaches this critical limit value setting, the system triggers a
temperature-controlled flush. The system continues to flush until the target temperature
for the drinking water installation has been reached.
Setpoint temperature for system flush
Start system flush at
24.0
°C
Min. 0.0 °C – max. 40.0 °C
Target temperature
22.0
°C
Min. 0.0 °C – max 24.0 °C
Fig. 21: Temperature for system flush
NOTICE
All the water in the system is not necessarily replaced.
Time interval for system flush
To maintain the intended operation, replace the water in the entire drinking water installa-
tion regularly. If the water is not fully replaced via regular extraction, a time interval for sys-
tem flushes must be defined. When this interval elapses, all the water in the drinking water
installation is replaced as a time-controlled exchange.
Time interval for system flush
Switched off
Switched on
72 h
Min. 1 h – max. 168 h
Fig. 22: Time interval for system flush
NOTICE
A temperature-controlled system flush cannot replace time-controlled
flushing, as the former does not necessarily replace all the water in the
system.
The preset constant differential pressure (Δp-c) control mode can be overridden with the
functions of manual operation OFF, MIN, MAX, MANUAL.
en
Setting the start
and target temperature for
the
temperature-controlled
system flush.
All the water in
the system is not
necessarily replaced.
Setting the
time interval for
starting a system flush.
All the water
in the system will be
replaced.
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