Espa ACUAPRES Betriebsanleitung Seite 8

Instruction Manual
In the ACUAPRES models, wait around 10 seconds for priming. If the electronic circuit detects no water the pump stops.
The circuit will make 4 attempts. If the pressure cannot be restored during any of these attempts due to a lack of water,
the circuit will remain in permanent fault until it is reactivated manually (disconnecting and reconnecting the power supply).
ACUAPRES is equipped with an anti-blocking safety device. Every 100 hours of inactivity, the pump starts up for
2 seconds automatically to prevent the hydraulics from blocking up.
9. Maintenance
These submersible pumps do not require maintenance.
During frosty periods, remember to drain the line.
If the pump will be out of service for extended periods, it should be removed from the well and stored in a
dry, well-ventilated location.
Warning: In the event of a breakdown, only an authorized technician may replace the power cable or handle
the pump.
10. Troubleshooting
1. The pump does not start.
2. The pump works but does not produce any flow.
3. The pump stops automatically.
4. The flow does not match the supplied curve.
Problems Causes
1 No electricity
2 Drop in the well water level
3 Voltage error
4 Total manometric head greater than
foreseen
1, 3 Thermal protection activated
2 Discharge line disconnected
3, 4 Insufficient well flow
4 Water intake filter clogged
1, 3 Stop caused by level probes
2 Check valve installed in the wrong direction
4 Wear in the hydraulics
1, 4 Capacitor not properly connected
(version II)
4 Faulty discharge line
1 Power cable cut
5'
1'
On
Off
1 retry
15' 60
'
2 retry 3 retry
Solutions
Check fuses and other protection devices
Check that the pump is completely submerged
Check that the voltage is the same as indicated
on the name plate
Check geometric height plus head loss
Reset the thermal protection or wait for it to cool
Connect this line to the outlet of the pump
Install the gate valve on the outlet to reduce the
flow of the pump
Clean intake filter
Wait for the well to recover
Install the valve in the opposite direction
Contact an Official Repair Center
See wiring diagram
Replace the line with a new one
Check the power cable
8
4 retry