Conduct During Operation; Electrical Work; Operator Responsibilities - Wilo RexaBloc RE Notice De Montage Et De Mise En Service

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These instructions must be strictly observed.
Non-observance can result in injury or substan-
tial material damage.
2.3. Drive
The hydraulics has a standardized connection
flange for installing an IEC standard motor.
See the technical data for the performance data
(e.g. size, construction, hydraulic rated power,
speed) needed to select a motor.

2.4. Electrical work

ELECTRICAL hazard!
Incorrectly performed electrical work can
result in fatal injury! This work may only be
carried out by a qualified electrician.
The motor must be connected in accordance with
the information in the operating and maintenance
manual for the motor. The governing local direc-
tives, 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
where it is supplied with power and how to cut off
the supply. A motor protection switch must be in-
stalled on-site. It is advisable to install a residual-
current device (RCD). If there is a possibility that
people can come into contact with the motor and
the fluid, the connection must be equipped with
an additional residual-current device (RCD).
The hydraulics must always be earthed. In a
standard system, the hydraulics is earthed
through the motor's connection to the mains. Al-
ternatively, the hydraulics can be earthed through
a separate connection.
2.5. Safety and monitoring equipment
CAUTION!
Never operate the hydraulics if the built-on
monitoring devices have been removed or
damaged, or if they do not work.
NOTE
Also note all the information in the operating
and maintenance manual for the motor!
The hydraulics is not fitted with monitoring
equipment as standard.
Optionally, the sealing chamber can be monitored
with an external pencil electrode.
All existing monitoring devices must be connect-
ed by an electrician and checked to ensure that
they function correctly before commissioning.
Personnel must be informed about the installed
systems and how they work.
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2.6. Conduct during operation

BEWARE of burns!
The housing parts can heat up to well above
40 °C. There is a risk of burns!
• Never touch parts of the housing with your
bare hands.
• After switching them off, let the hydraulics
cool down to ambient temperature.
• Wear heat-resistant protective gloves!
During operation of the hydraulics, 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.
During operation, all gate valves in the inlet line
and pressure pipe must be completely open.
If the slide valves on the suction and pres-
sure sides are closed during operation, the
fluid in the hydraulics housing is heated up by
the pumping movement. This heating creates
strong pressure in the hydraulics housing. The
pressure can result in the hydraulics exploding.
Before switching on the hydraulics, ensure that
all the slide valves are open and open any closed
slide valves.
2.7. Fluids
Each fluid differs in respect of composition, cor-
rosiveness, abrasiveness, dry matter content and
in many other aspects. Generally, the hydraulics
can be used for many applications. Please note
that if requirements change (density, viscosity or
general composition), this can also affect many
parameters of the hydraulics.
When using or replacing the hydraulics to pump a
different fluid, observe the following points:
• The fluid can be contaminated by oil from the
sealing chamber if the mechanical seal is defec-
tive.
Pumping drinking water is not permitted!
• Hydraulics that has been operated to pump
contaminated water must be cleaned thoroughly
before being used to pump other fluids.
• Hydraulics that has been operated to pump fluids
containing faeces and/or fluids that are hazard-
ous to health must be generally decontaminated
before being used to pump other fluids.
First clarify whether the hydraulics may be used
to pump other fluids!

2.8. Operator responsibilities

2.8.1. Integration into the existing safety concept
The operator shall ensure that the unit is inte-
grated into the existing safety concept and that
it can be switched off in an emergency using the
existing safety shutdowns.
SAFETY
WILO SE 12-2015 V05 DIN A4