Safety Recommendations; Control And Environment - Wilo SiFire Easy Série Notice De Montage Et De Mise En Service

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of the possibility of an unexpected automatic
start due to this logic operation.
The pump unit is NOT equipped with emergency
stop. The main pumps can only be stopped man-
ually. (See corresponding part of this manual
about the switchgear)
For this reason, before an intervention on pump
units, make sure you switch off power supply
and avoid any start of pumps.
If possible, pumps must be installed under the
charge of water. They are considered as such if
at least two thirds of the actual capacity of the
suction tank is above the level of the axis of the
pump and the minimum useful level of the water
in the tank is not more than two meters below
the axis of the pump.
If the conditions mentioned above are not
respected, the pressure boosting system is con-
sidered on suction conditions, which is accepted
after installation of special devices, explicitly
described by the standard (priming tanks, sepa-
rated pipes suction, etc).

7.2 Safety recommendations

WARNING! Risk of cuts!
Do not remove the protection on any rotating
parts, belts, hot surfaces etc. Never leave tools
or disassembled parts of the pressure boosting
system on it or around it.
WARNING! Risk of fatal injury!
Do not remove the protection of live parts. Pre-
vent each possibility for operate any element
that isolates the installation or subassemblies
on which to work.
DANGER! Risk of fatal injury!
Take all precautions to avoid a risk of electrocu-
tion. Control earth connection, presence and
continuity, and if a device for protection against
indirect contact is installed (differential switch).
If necessary, use required equipment (insulating
gloves, isolating baseplate) when operating on
the unit.
Never leave the switchgear or the terminal box
of electrical motor powers opened. Check if
there is no possibility of contact with live parts.
Check if electrical connections and auxiliary
power are correctly connected. Check the label
data of the electrical switchgear, in particular
tension and availability of an adapted power
supply.
WARNING! Risk of fire or flash fire!
The charging diesel pump batteries may produce
potentially explosive gas; Avoid flames and
sparkles.
Never leave flammable liquids or rags dipped in
acid around the pressure boosting system or
electrical equipment.
46
DANGER! Risk of fatal injury!
Ensure the correct ventilation of the pump
room. Check that the exhaust of the diesel
engine is free and the tube allows the removal of
exhaust gases outside the room safely, away
from doors, windows and vents.
WARNING! Risk of burn!
Check that exhausting pipes are correctly sup-
ported, equipped with anti-vibration couplings/
flexible vibration-damping sleeves and pro-
tected against accidental contacts.
CAUTION! Risk of damage of the installation!
Check if suction and discharge pipes of pumps
are correctly supported and equipped with flex-
ible vibration-damping sleeves.
CAUTION! Risk of product damage!
Check that the fluid level of the diesel engine (oil/
water) is correct and that plugs of the water and
oil circuit are properly fastened. For internal
combustion engines with heat exchanger water /
water, check that the valve of the cooling circuit
is locked in the OPEN position.
Check oil and diesel fuel, then control if there
are no fluid losses.
CAUTION! Risk of product damage!
For heating the oil/water of the diesel engine, an
immersion or contact resistor supplied with
230 V may be installed.

7.3 Control and environment

• Control electrical pumps or diesel pumps, as men-
tioned on the instruction manuals for both kind of
pumps.
• Provide sufficient space for maintenance of
pumps, motors, switchgears and installed acces-
sories.
• Prepare a surface with reinforced concrete for
installation of the pressure boosting system. It has
to be perfectly flat and horizontal accordingly to
the information in the project documentation,
complete with bolts which have a diameter
adapted to the weight of the unit. (See Fig. 4)
• Make connections to pipes of different circuits,
without transmitting mechanical stress, which can
damage equipment or pipes;
• Check fluid levels of the diesel pump unit (engine
oil, fuel, water for cooling, battery fluid, etc). If
necessary, adjust the levels in accordance with
instructions mentioned in the operating manual
for the diesel motor.
The unit can be attached to the foundation in
many ways through special holes provided in the
four corners. The chosen method depends on the
size, location and installation limitations of acous-
tic and vibration levels. In order not to transmit
tension to the base frame, get the defects of
alignment between the anchors and the support
surface with metal shims, as shown in figure 4.
WILO SE 01/2018