Caleffi 6000 - Manual (Page 38)

13
Flushing
The appliance goes into this mode automatically after the disinfection phase. It can be used, for example, to bring the water temperature back
to the SET1 value, or periodically to clear possible residues from the storage.
This phase is ended after a time selected with the tFLUX parameter.
When the flushing time has ended, relay 1 and relay 4 are switched off and the appliance returns to the “adjustment” function.
Thermal shock
In this mode, the appliance regulates the flow temperature at the thermal shock value selected with the SETSH parameter, for the period
selected with the tSH parameter.
This function is associated with activation of alarm AL4 and illumination of the alarm LED.
Thermal shock can be started by pressing the special button on the front panel (pressing and holding for at least 5 sec.) while the working
screen is displayed, or can be programmed using the related menu item, to run after a certain delay (countdown in minutes) or when a remote
command is received.
Once the procedure has been activated, it can still be stopped by pressing the shock button and confirming with the “OK” button
(guided procedure on the display) or by a remote command.
As this is a potentially dangerous function, a jumper is provided on the printed circuit board to enable it. If the jumper is closed, the Shock
function can be used; if it is open, it is not available (see Back panel section).
At the end of the Thermal Shock phase, the appliance reverts to its “adjustment” function.
Low Power
It goes into this mode if there is an electric supply failure.
The appliance continues running the internal date clock; however, in this state there is no electric supply for switching the relays, so the
regulator does not perform the adjustment or disinfection functions.
Probe temperatures cannot be acquired and no communications are possible.
The mixing valve is left in the status it was in at the time of the electric supply failure.
LCD is OFF.
LED displays are OFF.
All LEDs are OFF, except the “alarm” LED, which is blinking.
When electric supply is restored, the blackout is registered in the log (alarm AL5) and the appliance resumes the programmed functions, unless
the electric supply failure lasted for a time long enough for the battery to become fully discharged. In this case the appliance will be reset when
the electric supply is restored.
In the event of a reset or extended electric supply failure, the factory settings are restored. If modifying the factory settings, make a copy of the
new settings.
Reset
On the back panel there is a specific reset button, in case it is necessary to restore the initial settings.
For more information, see the description of alarm AL6 in the section on alarms management.
After a reset or when switched on, if the date and time have not been set, the regulator operates according to factory setting SET1.
Actuation relays
The electric supply board and terminals show the relay contacts used to manage auxiliary equipment and to report alarms.
• Relay 1: circulation pump (
active during disinfection).
• Relay 2: generic alarm (probe fault, battery fault, blackout or clock failure). This relay is connected via the NC contact.
• Relay 3: second thermostat.
• Relay 4: flushing valves.
Summary of actuation relay statuses
Operating Status Adjustment Disinfection Flushing Thermal shock
Relay Contact status Contact status Contact status Contact status
Relay 1: recirculation pump Open Closed Closed Closed
Relay 2: generic alarm Open Open Open Closed
Relay 3: second thermostat Open Closed Open Closed
Relay 4: flushing valves Open Open Closed Open