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ENGLISH
1 - GENERAL WARNINGS
- These pumps are recommended for pumping
very dirty and sewage water. They must be used
in compliance with local laws.
- Before installation and use read the following
instructions carefully. The manufacturer declines
all responsibility in the event of accident or
damage due to negligence or failure to observe
the instructions described in this booklet or in
conditions that differ from those indicated on the
rating plate. It also declines all responsibility for
damage caused by improper use of the water
pump.
- When storing, do not pile weights or other
boxes on top.
2 - SAFETY
- Before carrying out checks
or doing any maintenance, clear
the system by disconnecting the
voltage, unplug the pump from
the socket and then rinse the
pump well with clean water.
- The water pumps comply with the EEC
Directives 73/23/EEC, 98/037/EEC,
89/336/EEC including the latest amendments.
- Before installing the water pump, make
sure that the power supply mains is earthed
and complies with regulations.
- They are not suitable for
pumping inflammable liquids or for
operating in places where is danger
of explosion. Avoid contact between
the power supply and the liquid to be
pumped. Do not modify the
components of the water pump.
- The water pump must never be
lifted or transported by its supply
cable or float switch; it must be
held by the appropriate handgrip.
- Keep hands or other object away from the
hole under the pump casing near the supporting
feet.
- Do not use the pump in swimming pools,
garden ponds or similar places when people are
in the water.
ENGLISH
- 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.
8. FAULT FINDING CHART
Before attempting to diagnose any fault, make sure that the electricity
supply has been switched off.
FAULT
- No electricity supply.
- Motor switched off by level switch.
Motor does not start.
- Fuses are blown.
- Impeller blocked by impurities.
- Short-circuit in cable or motor.
- Pump blocked by impurities.
Pump runs but gives no water.
- Discharge pipe blocked by impurities.
- Liquid level too low. The pump inlet is not completely
- Pump partly blocked by impurities.
Pump runs constantly or
- Discharge pipe partly blocked by impurities.
gives insufficient water.
- Incorrect direction of rotation.
- Pump too small for the application.
- Temperature of pumped liquid too high.
Thermal relay trips out after
- Impeller blocked or partly blocked by impurities.
short time of operation.
- Phase failure.
- Voltage too low.
If in spite of carryng out the above operations, the problem still persists
contact the nearest service centre.
3 - PERLIMINARY INSPECTION
- Unpack and check that it is in perfect
condition. Also check that the data on the
rating place correspond to the required
data.
- If there is any problem contact the supplier
immediately, specifying the type of fault.
- CAUTION: If there is any doubt about
the safety of the machine, do not use it.
4 - CONDITIONS OF USE
- The following conditions must be observed when
using the water pump::
a
Maximum fluid temperature: 40ºC.
a
Maximum density of the liquid pumped: 1,1
3
Kg/dm .
a
pH of the liquid: 5 / 9
a
Vo ltag e v ar iatio n allo w ed : ± 5 %
(in the case of single-phase voltage
220/240V and three-phase voltage 380/415V
, these are the permitted limit values).
a
Protection index: IP 68
a
Max. immersion depth: 3 to 5 m.
a
Minimum emptying level:
a) - 25mm
b) - 40mm
c) - 55mm
a
M a x i m u m d i a m e t e r o f s o l i d
particles sucked up:
a) - 25mm
b) - 40mm
c) - 55mm
a
For intermittent duty the water
temperature may reach + 60ºC.
5 - INSTALLATION
- Installation can be a fairly complex
operation.
- It must therefore be carried out by
competent and authorized installers.
- CAUTION: during installation apply all
safety regulations issued by the competent
authorities and use common sense al all
times.
- You are advised to check the following
periodically:
a
The condition of the cables and
grommets, especially at their
attachment points.
a
T h e i m p e l l e r m u s t n o t b e
e x c e s s i v e l y w o r n , o t h e r w i s e
performance will be reduced.
- Consult our services for replacement.
CAUSE
submerged in the pumped liquid.
ENGLISH
- Do not underestimate the risk of drowning if
the installation has to be performed in a well at
a certain depth.
- Make sure there are no toxic discharges or
harmful gases present in the atmosphere. If the
installation involves welding, take all necessary
precautions to avoid explosions.
- Always remember the danger of infection and
take all hygiene-health precautions.
- If the bottom of the well or the surface on
which the pump rests is uneven and there is the
possibility of stones, debris, mud, etc.,
accumulating there, lay a level raised supporting
base (Fig. 1).
- 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.
Fig. 1
- 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:
a. 350x350x350
b. 450x450x450
c. 500x500x500
- 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 :
a. 230mm
b. 250mm
c. 270mm
6 - ELECTRICAL CONNECTIONS
- They are delivered ready to be connected.
The products , referred to in this statement are in
accordance with Directive 73/23/EEC (the Low
Voltage Directive). Full compliance with
essential requirements of the Directive is
verified for compliance with standard EN
60335-2-41.
As electrobombas DRENO,
declaração, estão em conformidade com a
Directiva 73/23/CEE (Directiva de Baixa
Tensão). A plena concordância com os requesitos
essenciais da Directiva é comprovada pela
conformidade com a norma EN 60335-2-41.
- C A U T I O N : i t i s t h e i n s t a l l e r ' 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.
- 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
t o b e d i s c o n n e c t e d d u r i n g
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.
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(Gerencia)
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