Umbra Pompe SP Serie Manual De Instrucciones página 7

Pumps that are to be used in fountains for outdoor use, in garden ponds and similar places, must be fed
by means of a circuit equipped with a differential current device, the rated operating differential current of
which is not higher than 30 mA.
ELECTRICAL CONNECTION
Caution! always follow the safety regulations. Electric installation must be carried out by skilled
and authorized electrician who accepts all the responsibility for the job
Ensure that the mains voltage is the same as the value shown on the motor plate and that there is
the possibility of MAKING A GOOD EARTH CONNECTION (Fig. E), in particular the earth terminal must
be connected to the yellow/green lead of the power cable. The earth lead used must be longer than the
phase leads so that it does not disconnect first when subject to traction.
STARTING UP
Do not start the pump unless it has been completely filled with fluid.
Before starting up, check that the pump is properly primed; fill it completely with clean water by means of
the hole provided after having removed the filler cap on the pump body.
mechanical seal is well lubricated and that the pump immediately starts to work regularly. (Fig. F-G).
Dry operation causes irreparable damage to the mechanical seal. The filling cap must then be screwed
back on carefully.
Switch on the power and check, on the three-phase version, that the motor is turning in the correct
direction; this should be in a counterclockwise direction, looking at the motor from the impeller side. If it
is turning in the wrong direction, invert the connections of any two wires on the terminal board, after
having disconnected the pump from the power mains.
PRECAUTIONS
The electropump should not be started more than 20 times in one hour so as not to subject the motor to
excessive thermal shock.
DANGER OF FROST: When the pump remains inactive for a long time at temperatures of less than 0°C,
the pump body must be completely emptied through the drain cap Fig. H, to prevent possible cracking of
the hydraulic components. This operation is advisable even in the event of prolonged inactivity at normal
temperature.
When starting after long periods of inactivity, the starting-up operations listed above must be repeated.
MAINTENANCE AND CLEANING
In normal operation, the pump does not require any specific maintenance.
necessary to clean the hydraulic parts when a fall in yield is observed. The electropump must not be
dismantled unless by skilled personnel in possession of the qualifications required by the regulations in
force. In any case, all repairs and maintenance jobs must be carried out only after having disconnected
the pump from the power mains.
MODIFICATIONS AND SPARE PARTS
Any modification not authorized beforehand relieves the manufacturer of all responsibility. All the spare
parts used in repairs must be original ones and the accessories must be approved by the manufacturer
so as to be able to guarantee maximum safety of the machines and systems in which they may be fitted.
In the event of damage to the power cable of this appliance, the repair must be carried out by skilled
personnel, in order to prevent all risks.
This ensures that the
However, it may be
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