Wilo Star-Z NOVA T Instrucciones De Instalación Y Funcionamiento página 11

Thermal disinfection
Power failure protection
Installation and operating instructions Wilo-Star-Z NOVA T
NOTICE: The time switching function and
temperature control can be used simultane-
ously. Time switching has priority. If both func-
tions are active, there is no temperature control
during the switch-off period.
The boiler is periodically heated up to approx. 70 °C
during thermal disinfection. If "thermal disinfec-
tion" is switched on and the pump detects this due
to a temperature increase above 68 °C, it will run for
2 hours continuously, regardless of the time
switching function and will only switch off again
after this period.
NOTICE: A learning phase starts after ther-
mal disinfection is activated.
During this phase, the pump is switched on
for 10 minutes, every 20 minutes. If there is an
increase in temperature, the time is logged and
the pump runs until the next temperature
increase. The time interval of both of these tem-
perature increases is logged as the frequency for
the thermal disinfection.
Changes to the times are detected automatically.
Factory setting:
Thermal disinfection switched off (off).
In the event of a power failure, the current time is
maintained for up to 12 hours.
Upon initial commissioning, this is only guaran-
teed after 24 hours of operation.
The other settings are not affected by a power
failure.
Operating principle
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