Electrical Connections - OLIJU Vortex SV Instrucciones De Instalación Y Funcionamiento

- The delivery piping may be either rigid or flexible as
long as the cross-section for passage of the fluid is no
smaller than that of the pump delivery outlet.
- To avoid the backflow of liquid from the discharge
manifold, install a check valve after the pump delivery
outlet (Fig. 1).
- If the pump is installed in a well, the well must
measure at least:
SV 40, SV 50.75 - 400x400x400
SV 50.150 - 500x500x500
SV 65, SV 80 - 600x600x600
- The starting and stopping level of the pump can be
varied by increasing the free length of the float.
- For the motor to be cooled correctly the water level
should not drop below :
SV 40
SV 50.75 - 300mm
SV 50.150 -330mm
SV 65
SV 80

6. ELECTRICAL CONNECTIONS

- They are delivered ready to be connected.
CAUTION: it is the installer's responsibility to perform
the connections in compliance with the regulations in
force in the country of installation. Make sure that
there is no voltage at the line wire terminals before
connecting.
Fig. 1
- 270mm
- 400mm
- 450mm
- Check that the data on the rating plate corresponds
to the rated line values.
- When carrying out connections make sure
that there is an efficient earth circuit. The
earth wire must be longer than the live
wires, and must be the first wire to be
connected when the pump is being set up
and the last to be disconnected during
disassembly.
- It is advisable to install a differential
switch. A thermal overload cutout in the
winding protects against voltage overload in
the single-phase pump motors up to 1.5 KW.
- The three-phase motors must be protected by the
user.
- For three-phase motors the rotation direction may be
inverted; in this case performance is much lower than
the rated values.
- The correct direction of rotation is found by raising
the water pump by its handgrip: during starting a
clockwise reaction will be felt (contrary to the direction
of the arrow) to invert the direction of rotation simply
invert two of the phases.
CAUTION: Never poke fingers or other objects into hole
the pump casing near the supporting feet to check the
direction of rotation.
- Repair of the pump by personnel not authorized by
the manufacturer will render the guarantee null and
void and will entail operating dangerous equipment.
CAUTION: Any tampering may lead to performance
being reduced and danger to persons and/or things.
- Where there is the risk of freezing, empty the well or
remove the pump and store it in a suitable place.
7. PERIODICAL CONTROLS
- Before doing anything, make sure that the pump is
disconnected from the power source and there is no
possibility of accidental connections.
- You are advised to check the following periodically:
 The condition of the cables and grommets,
especially at their attachment points.
 The impeller must not be excessively worn,
otherwise performance will be reduced.
- Consult our services for replacement.
EN
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