ENGLISH
We recommend for the pump type D3/DB3 0130 MP :
Starting : 4 bar - Stopping : 9 bar
If you choose other points, check that the intersection of the starting
and stopping pressures is in the contactor's operating range.
After choosing the starting and stopping pressures, proceed as fol-
lows :
- Open the discharge valve to depressurize.
- Close the discharge valve.
- Remove the cover from the contactor.
- Turn the nuts (items 1 - 2) fully clockwise without tightening.
- Start the pump to raise the pressure.
- Cut off power at the desired pump stopping pressure (read on pres-
sure gauge).
- Turn the nut (item 1) anticlockwise until a click can be heard.
- Open the discharge valve to lower the pressure to the desired
pump starting level (read on pressure gauge), then close it.
- Turn the nut (item 2) anticlockwise.
8. OPERATING TROUBLE
POWER TO THE MODULE MUST BE OFF before any
ATTENTION !
work is done.
TROUBLE
8.1 THE PUMP FAILS TO
a) Incorrect voltage or voltage drop:
START, OR STOPS
b) Open-circuit in motor power cord:
c) The motor protection trips out:
d) Integrated overload protection of
the motor ON:
e) Defect electronic card of the
Acson:
f) The water column HR is higher than
20 m:
8.2 DELIVER OR THE
a) Suction strainer clogged:
DISCHARGE FLOW
b) No water in borehole, or level too
IS TOO SMALL
low:
8.3 PUMP STARTS TOO
a) Differential on pressure-sensitive
OFTEN
switch too small:
b) The bladder vessel is too small or is
insufficiently pressurized:
c) The pressure gauge showed some
false pressures when one adjusted
the pressure contactor:
d) Small leaks at some points in the
installation:
8.4 PUMP DOES NOT
a) Water loss greater than 0,6 l/m:
STOP
b) Flow controller blocked by sand:
c) Electronic card of the Acson fault:
d) OFF pressure of the pressure
control adjusted too high:
CAUSE
a) Check voltage on start-up, an insufficient voltage can cause a stop-
b) Measure the resistance between phases. Refit the pump if necessary
c) Check the current setting on the thermal relay and compare it to the
d) Look at the cause: if foreing bodies obstructing the pump,have the
e) Replace the electronic card.
f) Modify the installation.
a) Refit the pump; unclog and clean.
b) Check the level; it must be at least 0.20 m above the pump discharge
a) Increase the Stop/Start difference.
b) Check and adjust the pressures (On/Off).
c) Check that nipple of the pressure gauge is located at the highest point.
d) Check for possible leaking taps and repair these leaks.
a) Service the installation.
b) Clean the inside of the Acson.
c) Replace the electronic card.
d) Check and adjust OFF pressure.
10
If a click is heard:
- Start the pump and check your adjustments.
- Refine your adjustments if necessary (See paragraph "principle").
- When the adjustments are OK, put the cover back on and comission.
If no click:
- Check your operating points and the vessel pre-pressurization pres-
sure (it must be 0.3 bars less than the pump starting pressure).
If necessary, choose 2 new points and adjust the pre-pressurization
pressure.
- To start again the operations of adjustment until an acceptable
result.
7. MAINTENACE
No specific maintenance during operating.
7.1 Spare parts
For a standard exchange or repair of the hydraulic parts and motor
(contact us).
REMEDIAL ACTION
ping of the motor.
and check the cable.
indicated value.
Important : do not insist if the relay trips out repeatedly (try to locate
the cause); forced operation of the unit could damage the motor (by
overheating) in a very short time (about a minute).
pump dismantled and cleaned.
(with pump running).
Check the pressure in the vessel.
Add a vessel to increase capacity or change to a larger vessel.
Relocate it if necessary and start again the operation of pressure
adjustment.