salmson ALTI-AQUA Notice De Montage Et De Mise En Service page 23

ENGLISH
3 LACK OF PRESSURE on the pressure side.
4 HIGH SWITCHING FREQUENCY OF CON-
TACTORS, FREQUENT ACTIVATION OF THE
PUMPS.
5 FREQUENT TRIGGERING OF PROTECTION
AGAINST LOW WATER LEVEL.
6 AUTOMATIC MODE IS DEFECTIVE.
7 NON-RETURN VALVE IS LEAKING.
a) The volume flow demanded is greater
than the flow capacity of the system:
b) No suction on one or both pumps:
c) The water pressure of the supply net-
work is less than the required minimum
pressure:
d) Incorrect direction of rotation of the
pumps (in the case of the three-phase
version):
e) A pump is clogged with contaminants:
f) The voltage supplied to the motors is
insufficient:
a) Incorrect target pressure:
b) Installed diaphragm vessel is too small:
c) No gas supply pressure in the vessel:
a) Protection against low water level is set
too high:
b) Drop in the water pressure from the
municipal network when the pumps are
switched on:
a) Connecting cable disconnected:
b) Control module is faulty:
a) The valve seal has been destroyed:
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a) Replace the system with a more suita-
ble one
(consult Salmson customer service).
b) Check that the suction strainer on the
break tank is not drawing in air and that
the break tank is not being filled too
close to the strainer.
c) Measures must be taken by the water
authority or the system must be
replaced. Consult Salmson customer
service.
d) Exchange two connecting cables
(phases) on the motor terminals with
each other.
e) Dismantle the pump and clean it.
f) Check voltage at the motor terminals
a) Adjust the settings
b) Install an additional diaphragm vessel.
c) Check the gas pressure in the vessel
and fill with gas or replace the dia-
phragm
a) Set the pressure switch correctly.
b) Set the protection against low water
level to minimum. If the problem per-
sists, the water supply network is not suf-
ficient; use a pressure gauge to check
the pressure when the pumps are
switched on or, if necessary, contact
the water authority.
a) Check all connections on the switch-
gear's terminal.
b) Attach the bypass module to the base of
the control module.
a) Replace the valve.