Installation; Installation And Electrical Connection; Safety Recommendations - Wilo SiFire EN Série Notice De Montage Et De Mise En Service

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7 Installation and electrical connection

DANGER! Risk of electric shock!
Personnel dedicated to the connection of elec-
trical equipment and motors must be skilled for
such work. They shall make the connection
according to the wiring diagrams supplied, in
accordance with regulations and laws in force. In
addition, they must ensure that they have shut-
down power before performing any operation
which provides the possible contact with the
electrical parts . Check earth continuity.

7.1 Installation

Install the booster in an easily accessible room,
ventilated and protected from rain and frost.
To make sure that the booster can pass through
the room door.
For maintenance works, a sufficient place must be
provided. The unit must be easily accessible.
Installation place has to be horizontal and flat. It
must be robust enough to support the system
weight.
The room must be exclusively dedicated to fire
equipment, directly accessible from the outside,
and having a fire resistance of at least 60 minutes
(see standards).
The room must be, in order of preference:
• separate from the protected building (isolated)
• closed to the protected building
• Inside the protected building.
NOTE:
For rooms with closed walls or inside the building,
it is preferable to have a fire resistance superior to
120 minutes. The temperature inside the room
must not be less than 10 °C (4 °C in the presence
of electric pumps) or more than 25 °C (40 °C in the
presence of electric pumps).
The room shall be equipped with openings to the
outside to ensure adequate ventilation for cooling
engines (electric and diesel) and for diesel engine
combustion.
The room also shall be equipped with a sprinkler-
type protection (EN 12845).
Sprinkler protection can be directly supplied by
the discharge manifold of the booster, as required
by the EN 12845 standard.
Access to the room must be guaranteed and easy
for people, even if the installation of fire is on,
without light, if there is snow or rain, and in any
case that can affect access negatively. Access to
the room must be sufficiently reported and admit-
ted only to authorised, specialised and properly
trained personnel.
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Avoid access to the system for unauthorised
persons!
The booster is a fire equipment using AUTO-
MATIC START and MANUAL STOP ONLY. For this
reason, there must have a clearly visible sign in
the system room warning that this logic opera-
tion makes the possibility of an unexpected auto
start.
The pump unit is NOT equipped with emergency
stop. The main pumps can only be manually
stopped (see corresponding manual of control
box).
For this reason, before an intervention on group
of pumps, make sure you switch off power sup-
ply 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 booster is considered on suction
conditions, which are accepted after installation
of special devices, explicitly described by the
standard (priming tanks, separated pipes suc-
tion, etc).

7.2 Safety recommendations

WARNING! Risk of Cut!
Do not remove the protection on any rotating
parts, belts, hot surfaces etc. Never leave tools
or disassembled parts of the booster on it or
around it.
DANGER! 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.
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, make operation on the unit by
using required equipment (insulating gloves,
isolating base plate).
Never leave the electrical panel 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 electrical panels, 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 booster or electrical equip-
ments.
WILO SE 12/2019