Wilo Wilo-SiFire FIRST, Инструкция по установке и эксплуатации

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en Faults, causes and remedies
74 WILO SE 2020-12
Page Description Example
Alarm history 1
In this screen you can detect the number of alarms that have occurred for Dry
Running Protection (DR) and Overpressure (OP). This data can be checked in case
of abnormal operation.
Alarm history 2
In this screen it is possible to detect the number of alarms occurred for excess
current protection (OL) and the number of ice protection (IP) interventions. This
data can be checked in case of abnormal operation.
Hour counter
This screen displays the total hours of operation (understood as the time for
which the switchgear has been connected to the power supply). By pressing the
"+" button on this page it is possible to display the number of hours of operation
of the electric pump.
11.6 Alarms
Alarm Description Example
Dry running
This message appears when the system is stopped due to lack of water in the pump
suction. If the auto-reset function has been activated, automatic attempts are made
to check for new water availability. To clear the error condition, press the central "re-
set" button.
Over load
This message appears when the current consumption of the electric pump has ex-
ceeded the maximum current value set in the I
max
parameter. This may occur as a re-
sult of extremely severe operating conditions of the electric pump, continuous re-
starts at very close intervals, problems in the motor windings, blocking of the pump
rotor or as a result of electrical connection problems between the motor and the
switchgear. If this alarm occurs frequently, it is advisable to have the installer check
the system. To clear the error condition, press the central "reset" button.
Over Pressure
The intervention of this alarm indicates a pressure in the system higher than the
value set in the "P.Limit" parameter. This can occur in load pump applications, i.e.
when the pump pressure is added to the inlet load pressure. If the error occurs fre-
quently try to increase the parameter "Limit" or contact the installer. To clear the er-
ror condition, press the central "reset" button.
11.7 Maintenance
NOTICE
The unit does not contain any components that can be repaired or replaced by the
end user. We therefore recommend that you do not remove the protective cover of
the electronic card in order to prevent the warranty from being voided!
The following instructions must be followed to ensure the full functionality of the
switchgear for a long time:
ƒ
Prevent the switchgear from being exposed to temperatures below 4 °C. If this is not
possible, make sure that all the water inside has been drained to prevent it from
damaging the plastic body of the switchgear by freezing.
ƒ
if the pump is equipped with suction filters, periodically check that they are clean;
ƒ
always make sure that the cover is well closed to avoid water infiltration from the
outside;
ƒ
disconnect the power supply and drain the water from the system when the system
is inactive for a long period;
ƒ
before using the system with fluids other than water, contact the manufacturer;
ƒ
do not carry out operations with the switchgear open;
ƒ
before removing the cover of the switchgear wait 3 minutes to allow the condensers
to discharge.
12 Faults, causes and remedies
The procedures described in the following table must be performed EXCLUSIVELY by
experienced personnel. Never perform any work without carefully reading and under-