R elay s tatus
Operating s tatus
Relay 2 closed (if no alarms,
the relay is normally open).
In safe mode. Mixing valve closes, i.e. only cold water enters.
Adjustment or disinfection or thermal shock is cancelled.
All alarm indications are cleared when the cause of the alarm has been removed.
Relay 2 open.
The alarm relay does not
change status.
All functions are ensured.
The return probe, if present, is used as a monitor only, since it does not generate an alarm if faulty.
Relay 2 closed.
(if no alarms, the relay is
normally open).
No disinfection, but adjustment continues and thermal shock is possible.
When the first button is pressed, the relay re-opens; indication remains on the display.
In all cases, all alarm indications are cleared when the cause of the alarm has been removed.
Relay 2 open.
The alarm relay does not
change status.
Disinfection failure does not generate any alarms.
Relay 2 closed.
(if no alarms, the relay is
normally open).
When the first button is pressed, the relay re-opens; indication remains on the display.
In all cases, all alarm indications are cleared when the cause of the alarm has been removed, in this case when the next disinfection
is successfully completed.
Note: if program 0 is set, any unresolved alarm indication due to incomplete disinfection is cleared.
Relay 2 closed.
(if no alarms, the relay is
normally open).
Alarms generated. The thermal shock function is potentially dangerous for users of the system.
When the first button is pressed, the relay re-opens; indication remains on the display.
In all cases, all alarm indications are cleared when the cause of the alarm has been removed, in in this case when the shock function
has ended and the appliance begins adjustment again.
Relay 2 closed.
(if no alarms, the relay is
normally open).
If there is a mains power failure, the back-up battery keeps the appliance’s internal clock running.
In this situation, all actuations are inhibited (the relays cannot be operated), and therefore all the adjustment, disinfection and thermal
shock programs. In this status, the appliance goes into Low Power mode in order to ensure maximum autonomy.
The RS485 interface is not available.
When power is restored, the blackout alarm (AL5) is stored in the log, and the appliance resumes operation as defined in the
programs; there are no alarm indications.
However, if the mains power failure lasts long enough for the battery to become discharged, there is a general reset when power is
restored.
The printed circuit board has a button for hardware reset of the appliance. This button cannot be operated from the front panel, but
only by opening the door of the appliance and accessing the printed circuit board.
If the appliance is reset accidentally, or intentionally by pressing the special hidden button, or by interference (lightning, etc.), the
correct time and date settings are lost.
Settings made by the user are also lost, and the factory values are reloaded for all parameters and settings.
Therefore, until the correct date and time are re-entered:
Appliance remains active in adjustment mode.
Disinfection is inhibited.
Thermal shock program is inhibited (but thermal shock can still be forced manually or remotely).
When the current date and time have been set (manually or remotely), the device comes out of the alarm condition and resumes
normal operation. All alarm indications are cleared.
Relay 2 open.
The alarm relay does not
change status.
While in operation, the level of charge in the battery is checked periodically (about every 24 h), and the recharge function is
activated if necessary. If the parameter readings are not within the specified range, it means the battery is damaged and must be
replaced.
However, the appliance continues performing the specified programs, since a battery fault does not affect any of the appliance
functions (unless there is a blackout).
NOTE: for the battery replacement operation refer to the procedure described on page 20.
Operability after alarm (page 2)
No relay action.
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