OLIJU TRI CMV Notice D'installation page 14

12. Maintenance
Before starting any work on the
system, make sure the power is turned
off and locked to prevent it from being
inadvertently turned on.
Pump
The bearings and seals require no maintenance.
13. Table detection of faults
Before starting any work on the pressurization system, make sure that the power supply
was turned off and can not be reconnected inadvertently.
Fault
The system does not
work after startup
The pump starts, but
stops immediately.
Starts and stops
frequent.
The pumps are running,
but do not provide
water.
The pump works in
reverse when it is
turned off.
Leak in the seal.
Noise
Cause
a) The effective pressure is greater
than or equal to the pressure boot
setup.
b) Power supply switched off.
c) The automatic circuit-breakers
stopped.
d) Thermal relay activated.
e) Damaged differential circuit breaker.
f) Pressure switch damaged.
g) Pump blocked.
h) Motor damaged.
a) Incorrect configuration of the
pressure switch.
b) Pressure tank pre-charge incorrect.
c) Protection against dry running on.
a) Incorrect configuration of the
pressure switch.
b) Pressure tank pre-charge incorrect.
c) Deposit of membrane damaged.
a) The pump / suction pipe are blocked
due to impurities.
b) Valve retention standing or locked in
the closed position.
c) Air in the pump / suction pipe.
d) The motors in the wrong direction of
rotation.
a) Leakage in suction pipe
b) Foot valve damaged
a) Damaged seal.
a) The pumps are cavitation.
Settings
To ensure proper operation and reliable, the
preload pressure tank membrane and the
pressure switch setting should be checked
regularly, at least once a year.
Antifreeze protection
If the pressurization system is not used during
periods of ice, manifolds, pumps and membrane
tank must be drained to avoid damage.
a) Wait until the pressure decrease, or reduce the
pressure on the discharge side. Make sure that
the system boots.
b) Connect the power supply
c) Correct the failure and start the circuit breakers.
d) Correct the fault and reset the thermal relay.
e) Replace the differential circuit breaker.
f) Replace the pressure switch.
g) Eliminate the cause of the blockage.
h) Repair or replace motor.
a) Increase the stop pressure and / or pressure
differential.
b) Check the preload pressure.
c) Check the conditions of entry and make sure
that the liquid flows freely to the pump.
a) Increase the stop pressure and / or pressure
differential.
b) Check the preload pressure.
c) Repair or replace the membrane tank.
a) Clean the pump / suction pipe.
b) Check and repair the valve.
c) Purge the pumps. Check for leaks in suction.
d) Change the direction of rotation (replace two
phases of power supply).
a) Repair or replace suction line.
b) Repair or replace foot valve.
a) Replace the seal.
a) Check suction conditions (pump, piping, valves
and suction filters, if any).
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Solution