caprari K+ Serie Manual De Uso Y Mantenimiento página 34

K.M150N.. / K.M100N.. / K.W100N.. / K.D200N.. / K.M200P.. / K.D250P..
Problems
5. The motor stops and then
restarts after a short time,
but the thermic protector
of the starting equipment
fails to activate.
GB
6. The electric pump fails to
stop.
7. The electric pump fails
to function in automatic
mode.
8. The ringing alarm and/
or warning light of the
conductivity probe has
activated.
9. The thermic protection of
the circuit has activated
or all line fuses have burnt
out.
10. The pumps do not
alternate in operation
if envisaged in the panel.
34
Probable causes
5.1. The electric pump is operating with an
excessively high number of starts.
5.2. Incrustations on the surfaces do not allow the
heat produced by the electric motor to escape.
Also consult points 2.1. - 2.3. - 2.4. - 2.5. - 2.6.
6.1. The pump fails to empty the trap down to stop
level.
6.2. The electric pump continues to operate even
beyond the stop level.
6.3. Electric pump with insufficient flow rate for plant
requirements.
7.1. The liquid level in the collection chamber is not
high enough to command the electric pump to
start.
7.2. Incorrect connection of the level sensors or
their malfunction.
8.1. Presence of water in the electric pump oil.
8.2. The alarm is triggered when the electric pump is
first started after its installation or reinstallation.
9.1. The motor is not connected correctly.
9.2. Short circuit in the connection cables, in the
winding or in the motor connections.
9.3. Undersized protector plates or fuses
compared to the installed power.
9.4. Excessive heat in the place where the panel is
installed.
10.1. Defective switch relay.
10.2. Incorrect level sensor sequence.
SALES NETWORK and list of ASSISTANCE CENTRES available at www.caprari.com
Faults
5.1. The accumulation chamber is too small, or the
defective check valve keeps filling the tank.
5.2. Clean.
6.1. Check for leaks in the driving system inside
the trap or for clogging in the valves or
impeller.
6.2. Check the level monitoring equipment.
6.3. Replace the electric pump with another able
to ensure a higher flow rate.
7.1. Refill or wait until the accumulation chamber
fills so that pump operation can be checked
when enabled by the probe.
7.2. Check the connections of each probe and
change any defective ones.
8.1. Probable wear of the pump-side mechanical
seal. Carry out maintenance as soon as
possible.
8.2. Before checking the electric pump oil, check
that all conductivity probe connections have
been correctly made.
9.1. Check and correct the panel connections.
9.2. Disconnect the motor and check the windings.
Check whether there is a short-circuit or
grounded phase.
9.3. Check and replace with correctly sized parts.
9.4. Check the installation site or use
compensated equipment.
10.1. Check and replace the device if necessary.
10.2. Check and correct the activation sequence
and check the start and stop commands.
Caprari S.p.A.