Commissioning Of Main Diesel Pump; Maintenance - Wilo -FireSet UL FM Notice De Montage Et De Mise En Service

8.2.2 Commissioning of main diesel pump

• Make sure that all hydraulic, mechanical, and elec -
trical connections indicated in the NFPA 20, in this
Installation and operating instructions, in the
Installation and operating instructions of the pump,
the motor and switchgears. are done correctly.
• Ensure that valves on the suction and the dis -
charge side of the pump are open.
• Ensure that the pump sucks and is filled with
water; drain air by using the tap on the pump
housing.
• Check if the supply voltage matches the data indi -
cated on the rating plate and if it is present.
• Ensure that the fuel is compatible with the motor
functioning, that the fuel tank is completely filled
with fuel (the fuel level inside the tank is displayed
on the switchgear).
• Ensure that the pipe connections are done cor -
rectly without connection between the tank and
the motor.
• Ensure that the electric float switch cable of the
tank is connected correctly to the electronic
switchgear of the diesel pump.
• Check the oil and coolant level of the motor.
• For motors cooled by a heat exchanger, check the
specific operations indicated in the Installation
and operating instructions of the motor.
• To top up the level of fluids, use oil and coolant as
specified in the Installation and operating instruc -
tions of diesel motors in addition to this Installa -
tion and operating instructions.
CAUTION! Risk of product damage!
Ensure that none of the following points exists.
Otherwise immediately stop the pump and
remove malfunctioning causes before starting it
again (also refer to the chapter Faults, causes
and remedies:
• Rotating parts in contact with fixed parts,
• Unusual noises and vibrations,
• Loosened bolts,
• High temperature on motor housing,
• Exhaust gas in the pump room,
• Leakage on mechanical seal,
• Vibrations, noise, and excess temperatures
could be caused by a misalignment of the
motor/pump coupling.

9 Maintenance

The Wilo-FireSet is an equipment in the fire-
extinguishing system, thus possible modifications
and repair that affect its efficiency must be made
in such a way that the 'out of order' state is mini -
mized.
If there is more than one pump, disconnect the
pumps one at a time by the selection switches of
electrical switchgears and the gate valves pro -
vided.
Installation and operating instructions Wilo-FireSet UL FM
Prohibit access to the pump room to
unauthorized persons.
WARNING! Risk of personal injury!
People must always wear personal protective
devices. Maintenance must ONLY be carried out
by qualified personnel. If there are missing
instructions, always contact the supplier or
expert staff.
Never work alone on works which require the
presence of more than one person.
Do not remove the protection on any rotating
parts, belts, hot surfaces, etc. Never leave tools
or disassembled parts of the group on it or
around it.
Do not remove the protection of live parts; pre -
vent any possibility to operate elements that
isolate the installation or subassemblies on
which work must be performed.
CAUTION! Risk of product damage!
The FireSet is NOT equipped with an emergency
stop. The main pumps can only be stopped man -
ually by interrupting the automatism.
For this reason, ensure that you are in posses -
sion of clear instructions and the device to stop
the pump before you make any intervention.
DANGER! Risk of fatal injury!
If there are interventions with an open door of
the switchgear, even after opening the main
isolating switch, input terminals from the supply
line and those of remote transmission of alarms
could still be powered.
DANGER! Risk of fatal injury!
For an intervention on the diesel motor, it is
advisable to disconnect the positive terminal of
battery to prevent undesired start-ups.
DANGER! Risk of fatal injury!
Before changing the motor oil, make sure that
the temperature is below 50°C. For water-
cooled motors, remove the radiator cap or the
heat exchanger very slowly. The cooling sys -
tems are normally under pressure and violent
hot liquid leaks could occur. Check the correct
level of motor fluids (oil/water) and the correct
tightening of the water circuit and the circuit oil
closure plugs.
NEVER ADD COOLANT TO AN OVERHEATED
MOTOR. LET IT COOL DOWN FIRST.
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