If there is a water shortage the device will stop the pump and protect against dry running (red Failure LED blinking).
Once the cause of the failure has been resolved press the Restart button to restore the operation.
6.2. Setting the restart pressure values
The device is factory calibrated to 1,5 bar.
Restart pressure 2.5 bar.
The pump pressure must be a minimum of 4 bar. The water column between the device and the highest user must
not exceed 25 metres.
Restart pressure2 bar.
The pump pressure must be a minimum of 3.5 bar. The water column between the device and the highest user must
not exceed 20 metres.
Restart pressure 1.5 bar.
The pump pressure must be a minimum of 3 bar. The water column between the device and the highest user must
not exceed 15 metres.
To change the value keep the Set button pressed in for 3 seconds once or more times. The green led will light up
next to the value selected. Variation range of the cut-in (start-up) values ± 10%.
The pump stops if the pressure generated by the same fails to reach the values indicated above.
The pump starts but without restarting if the height of the water column exceeds the values indicated above.
6.3. Automatic restart and anti-jamming function
In case of stopping due to an water shortage, the device will automatically make 10 double attempts to rearm over
the 24 hours following the failure, each lasting approximately 5 seconds to allow the pump and the system to reload if
possible. After the last failed rearming attempt, the device will remain permanently in alarm (red Failure led blinking)
pending manual rearming by pressing the "Restart" button. The user can always try to rearm the device at any time
by pressing the Restart button. If for any reason the pump remains idle for 24 consecutive hours, the device will carry
out a start up of the pump motor for about 5 seconds (anti-jamming function). In case of a temporary blackout, the
device will automatically rearm once the electricity returns.
7.
Maintenance
WARNING
Before accessing the unit, disconnect the electrical plug from the socket, and close the hydraulic
interception valves, ensure that no one can reinsert the plug or open the valves during the inspection by
locking them (e.g. with padlocks) and signalling the presence of work in progress (e.g. with labels).
Float valve, make sure that the valve closes hermetically and that the float is able to move freely.
•
Pump, check that it delivers the correct pressure and that it does not emit mechanical noises or whistles.
•
Water leaks, check that the connections do not leak.
•
Sensors, make sure that the float switch is working correctly when cleaning the rain water collection tank.
•
It is recommended to carry out the above-mentioned actions at regular intervals, approximately every 6 months and
at least once a year.
ENGLISH
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