Wilo XI4-OR Série Notice De Montage page 6

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2.3 Electrical work
DANGER due to electrical current!
Incorrectly performed electrical work can
result in fatal injury! This work may only be
carried out by a qualified electrician.
CAUTION! Moisture!
Moisture penetrating the cable will dam-
age both the cable and the product. Never
immerse the cable end in fluid and always
protect it from moisture. Unused wires must
be insulated!
The motors are operated with single-phase cur-
rent. The governing national directives, standards
and regulations (e.g. VDE 0100) as well as the
requirements of the local energy supply company
must be observed.
The person operating the motor must know
about the power supply and how to cut off the
supply. It is advisable to install a residual-current
device (RCD). If there is a possibility that peo-
ple can come into contact with the motor/unit
and the fluid (for example on building sites), the
connection must be equipped with an additional
residual-current device (RCD).
The section entitled "Electrical connection" must
be observed when connecting the product. The
technical specifications must be observed strictly!
The motor and the entire unit must always be
earthed.
If the motor has been switched off by a protec-
tive device, it must not be switched on again
until the fault has been rectified.
When the motor is connected to the electrical
control panel, particularly when electronic devices
such as soft start-up control or frequency con-
verters are used, the switchgear manufacturer's
specifications must be followed to comply with
the electromagnetic compatibility (EMC) require-
ments. Special separate shielding measures
(e.g. shielded cables, filters, etc.) may be nec-
essary for the power supply cables and control
cables.
NOTICE:
Changes to the cable length or the cable
position can have a significant impact on the
dimensions of the EMC interference.
Use of an interference suppressor is recom-
mended if interferences occur in other devices!
Connections may only be made provided the
switchgear meets the harmonised EU standards.
Mobile radio equipment may cause malfunc-
tions in the system.
WARNING! Electromagnetic radiation!
Electromagnetic radiation can pose a fatal
risk for people with cardiac pacemakers. Put
up appropriate signs and make sure anyone
affected is aware of the danger!
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2.4 Safety and monitoring devices
Our products may be equipped with mechani-
cal (e.g. suction strainer) and/or electrical (e.g.
thermal sensors, sealing chamber monitoring etc.)
safety and monitoring devices. These devices
must be mounted and connected.
Electrical equipment, such as thermal sensors,
float switches, etc, must be connected by an
electrician and checked to ensure that they func-
tion correctly before commissioning.
Note that for this to occur, certain equipment
may require switchgear in order to function in a
trouble-free manner, e.g. PTC thermistors and
PT100 sensors. This switchgear can be obtained
from the manufacturer or a qualified electrician.
Personnel must be informed about the used
systems and how they work.
2.5 Conduct during operation
When operating the motor/unit, always follow
the locally applicable laws and regulations for
work safety, accident prevention and handling
electrical machinery. To help ensure safe working
practice, the responsibilities of employees should
be clearly specified by the operator. All personnel
are responsible for ensuring that regulations are
observed.
The motor/unit is equipped with moving parts.
During operation, these parts rotate in order to
pump the fluid. Certain substances in the fluid
can result in very sharp edges forming on the
moving parts.
WARNING! Rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the hydraulics or touch
the rotating parts when the machine is in
operation. Before performing maintenance or
repairs, switch off the product and wait for
the rotating parts to come to a standstill!
2.6 Fluids
Each fluid differs in respect of composition, cor-
rosiveness, abrasiveness, dry matter content and
in many other aspects. In general, Wilo pumps can
be used for many applications. Please note that if
requirements change (density, viscosity or general
composition), this can also affect many operating
parameters of the pump.
When using and/or switching the motor/unit to a
different fluid note that:
• The motor is filled with oil. The fluid can be
contaminated by this oil if the mechanical seal is
defective.
• When used in drinking water applications, all the
parts in contact with fluid must be fit for the pur-
pose. This must be checked in accordance with
the local regulations and laws.
The motors/units must not be used in drainage
and sewage and/or with fluids that are hazard-
ous to health.
SAFETY
WILO SE 12-2017 DIN A4