30
Cause
Remedy
Fuel cell module is out of operation as no heat transfer
through the heating circuits, heating water buffer cylin-
der or other cylinders is possible.
Wait until heat transfer is possible again.
Fuel cell module in regeneration phase
Wait until the regeneration phase has been completed.
Note
After approx. 45 hours of operation, the fuel cell module
will briefly shut down for regeneration, in order to main-
tain the performance of the fuel cell module.
"Power generation OFF"
is selected.
Switch on the energy manager: See page 18.
The 5 year service interval has expired.
Please notify your heating contractor so that the service
can be carried out.
The 10 to 12 year service interval has expired.
Please notify your heating contractor so that the service
can be carried out.
The total service life of the fuel cell module (20 years)
has been exceeded.
Please notify your heating contractor.
Power export is briefly interrupted.
If a fault message is displayed, please notify your heat-
ing contractor: See chapter "System characteristics dur-
ing a mains fault".
"Fault" is displayed
Cause
Remedy
System fault
Proceed as described on page 24.
"Service" and
ë
are displayed
Cause
Remedy
The time for a service as specified by your contractor
has arrived.
Proceed as described on page 24.
"Panel locked" is displayed
Cause
Remedy
The control panel is locked.
Unlock it: See page 19.
System characteristics during a mains fault
Mains faults can have an adverse effect on the charac-
teristics of the system.
In case of a mains fault (e.g. power cut), the mains
monitor (ENS) of the system automatically disconnects
it from the grid. Power export is interrupted.
No
fault message is displayed.
If the mains fault is present for less than 60 seconds,
power export automatically resumes within 10 minutes.
If the mains fault is present for more than 60 seconds,
the fuel cell module of the system shuts down.
Provided the mains fault is no longer present, power
generation by the system automatically resumes
24 hours after its last start. Should the same mains
fault lead to a further shutdown of the fuel cell module
within 7 consecutive days, there is a possibility of per-
manent mains instability.
What to do if...
No power generation
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Summary of Contents for Vitovalor PA2
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