General Steps For Maintenance; Test Of Automatic Start Of Pump; Test Of Automatic Start Of Diesel Pump; Periodic Tests - Wilo -FireSet UL FM Notice De Montage Et De Mise En Service

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For diesel motors with heat exchanger, check
that the valves of the cooling circuit are in the
open position. Check diesel and oil hoses for
fluid leakage.
DANGER! Risk of fatal injury!
For oil/diesel motor water heating, emersion or
contact supplied with 230 V resistance can be
installed.
WARNING! Risk of fire and personal injury!
Connecting or disconnecting the battery can
produce sparks.
Never connect or disconnect the battery cables
when the motor is running.
WARNING! Risk of burns!
Hot diesel motor and exhaust pipe surfaces.
DANGER! Risk of explosion!
While charging the diesel pump batteries,
potentially explosive gas could be formed;
avoid flames and sparks. Never leave flammable
liquids or rags soaked with these liquids around
the unit of pumps or electrical devices.
DO NOT SMOKE OR USE FLAMES
DURING THE CHANGE OF MOTOR OIL
OR FUEL PROVISION.

9.1 General steps for maintenance

• General inspection of the FireSet pump and sys -
tem (including water and power supplies) to check
the apparent conditions of all components,
• General cleaning
• Tightness check of non-return valves,
• Check the operating configuration of the electri -
cal switchgear,
• Check the correct operation of alarm pilot lights
on the switchgear,
• Check the correct operation of the minimum tank/
well level alarms,
• Check the electrical connections and ensure that
there are no signs of insulation damages, burning,
loosening of terminals,
• See also specific operations indicated in the par -
ticular Installation an operating instructions for
the various components of the FireSet,
• Check the correct functioning of the minimum
fuel level alarm,
• Check the correct functioning of the motor oil
heater resistor,
• Check the battery charge level and the efficiency
of the battery charger,
• Check the correct functioning of the stop solenoid
valve for diesel motor,
• Check the pump cooling oil level and viscosity.
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During all checks, the following points have to be
carried out with particular attention:
a) All the different pressures of the manometer
for water and air of the buildings, pressures for
main pipes and pressure tanks,
b) All water levels in storage tanks,
c) The correct position of all main gate valves.

9.2 Test of automatic start of pump

Tests on automatic pumps must include the fol -
lowing:
a) Check motor oil and fuel level.
b) Reduce the water pressure on the starting
device, in this way simulating an automatic
start request.
c) When the pump starts, the starting pressure
must be checked and recorded.
d) Check the oil pressure on the diesel pump and
the cooling circuit's water flow.
CAUTION! Risk of malfunction of the pump!
Always top up fuel and other fluids after per -
forming the tests.

9.3 Test of automatic start of diesel pump

After testing the start, diesel motors must be
tested as follows:
a) Let the motor run for 20 min or for the time
recommended by the supplier. Then stop the
motor and immediately restart it by using the
test button 'manual start'.
b) Check the water level in the primary cooling
circuit.
During the test, you must check the oil pressure,
the motor temperature, and the coolant flow.
Then check the oil hoses and make a general
check to detect any possible fuel, coolant, or
exhaust smoke leakage.

9.4 Periodic tests

MONTHLY CHECKS
Check level and density of the electrolyte of all
lead storage battery cells (including diesel motor
starting batteries and batteries used to the elec -
tronic switchgear power supply). If the density is
low, check the battery charger, and if it is working
correctly, replace the faulty battery.
QUARTERLY CHECKS
To be performed maximum every 13 weeks.
An inspection report must be recorded, signed,
and handed over to the final user. This report must
include details of each procedure carried out or
planned, details of external factors, such as
weather conditions, which could have influenced
the results.
WILO SE 08/2019