Control And Environment; Electrical Connection; General - Wilo SiFire EN Série Notice De Montage Et De Mise En Service

DANGER! Risk of fatal injury!
Ensure the right ventilation of the pump room.
Check that the exhaust of the diesel engine is
free and the tube allows the removal of exhaust
gases to outside the room safe, 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 damages!
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 damages!
For the heating of the oil/water of the diesel
engine, an immersion or contact resistor sup-
plied 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, boxes and installed accessories.
• Prepare a surface with reinforced concrete for
installation of the pressure booster. It has to be
perfectly flat and horizontal as shown in the book
project, complete with bolts which have diameter
adapted to the weight of the group (see fig. 4).
• Make connections to pipes of different circuits,
without mechanical stresses transmitted, which
can damage equipment or pipes themselves.
• 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 diesel motor.
The group can be attached to the foundation
through special holes provided in the four corners,
in many ways; the method chosen depends on the
size, location and installation limitations of acous-
tic and vibration levels. In order not to transmit
tension to the frame, get the defects of alignment
between the anchors and the support surface with
metal shims, as shown in the figure 4.
Installation and operating instructions Wilo-SiFire System
CAUTION! Risk of contamination and damage to
health!
For groups with diesel pump, waterproof the
floor of the system room to avoid contamination
of the subsoil because of possible diesel or
engine oil losses.
NOTE:
We recommend equipping the pump electrical
panel with an alarm system for pump failure, under
voltage condition, etc.

7.4 Electrical connection

7.4.1 General

DANGER! Risk of fatal injury!
Electrical connections must be carried out by
authorised and skilled personnel in accordance
with standards and laws in force. Power supply
must be available at any times (EN 12845
10.8.1.1).
• Check the type of power supply and the avail-
able voltage, and compare them with data of
pumps, motors, electrical panels and other
devices. Before performing an intervention,
control the earth connection.
• For connection to power supply networks, use
cables in one piece, without joints, exclusively
dedicated to the pump unit for the fire depart-
ment, connected before the main power supply
switch of buildings.
• Use cables with a suitable diameter, whose
characteristics and dimensions are in compli-
ance with IEC standards in force and with speci-
fications required by the EN 12845 standard.
• To protect the cables from direct exposure in
case of fire, they must pass through pipes buried
outside the building or through parts of the
building where the fire hazard is negligible. If it
is not possible, they also must have an additional
direct protection with a 180 minutes fire resist-
ance.
• Make connections as shown in the wiring dia-
grams supplied with the control boxes.
• The main electrical box must be located in a fire
protected compartment, used exclusively for
power supply.
• Electrical connections in the main box must be
made to ensure that electricity continues to be
supplied to the pump control panel even when
power is cut to other utilities.
• The fire extinguishing pump supply lines, classi-
fied as safety service supply lines CEI 64.8 – 56,
must only be protected against short-circuits
and direct contacts.
They must not be protected against overloads!
• For protection, see the requirements of the
electricity project (earth connection, equipo-
tential bonding)
• Connect batteries for diesel pumps
• Check the tightening of all electrical connec-
tions
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