DAB 1 S4 Installations- Und Wartungsanleitungen Seite 23

THE SET DOES NOT SUPPLY THE
REQUIRED CHARACTERISTICS.
WHEN STOPPED, ONE OR MORE
PUMPS IN THE SET TURN IN
INVERSE DIRECTION.
AFTER BEING STOPPED, A PUMP IN
THE SET DOES NOT START AGAIN.
THE MOTOR OF AN ELECTROPUMP
IN THE SET IS VIBRATING.
ENGLISH
1. The set chosen is undersized for the
characteristics of the system.
2. Excessive water consumption for the flow rate
that can be supplied by the water supply source
(tank, well, mains, etc.)
3. Motors turning in inverse direction.
4. One or more pumps clogged.
5. Pipes clogged.
6. Interception valves at suction and delivery partly
closed.
6. Air infiltrations in the suction pipes of the set
pumps.
1. The respective not return or foot valves do not
close well or are blocked.
2. The respective suction pipe is not airtight.
1. Motor protection fuses burnt out.
2. No current is reaching the coil of the respective
remote control switch.
3. Remote control switch coil interrupted.
4. The system pressure is not reaching the
respective control pressure switch.
5. Faulty control pressure switch.
1. A motor protection fuse has burnt out.
2. Fuse holder base slack or faulty.
3. Contacts of the respective remote control switch
worn or faulty.
4. Pump blocked.
5. Bearings worn.
6. Electric wires broken.
1. Replace it with one that suits the required
characteristics.
2. Increase the flow rate that can be supplied by
the water supply source.
3. Change it, performing the operation described
in the paragraph on "Starting".
4. Dismantle them and clean the pump body, the
impellers and the filter, ensuring that they are
5. in good condition.
6. Clean them or change them.
7. Open them completely.
Testing under pressure, check the perfect
seal in the couplings, the joins and the pipes.
1.
2.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
21
Check seal and correct operation.
Check the seal, testing under pressure.
Change them.
Use a tester to check the electric circuit as far
as the coil itself and repair any interruption
found.
Change it.
Remove it and clean the connecting sleeve.
Change it.
Change it.
Secure it if slack. Change it if faulty.
Change the remote control switch.
Free it.
Change them.
Check and repair them.