Maintenance; Notes On Safety For The Maintenance; Maintenance Programme; Maintenance Frequency - Riello Rl 25/1 Blu Instrucciones De Instalación, Funcionamiento Y Mantenimiento

7

Maintenance

7.1

Notes on safety for the maintenance

The periodic maintenance is essential for the good operation,
safety, yield and duration of the burner.
It allows you to reduce consumption and polluting emissions and
to keep the product in a reliable state over time.
The maintenance interventions and the calibration
of the burner must only be carried out by qualified,
authorised personnel, in accordance with the con-
tents of this manual and in compliance with the
DANGER
standards and regulations of current laws.
7.2

Maintenance programme

7.2.1

Maintenance frequency

The gas combustion system should be checked at
least once a year by a representative of the man-
ufacturer or another specialised technician.
7.2.2

Checking and cleaning

The operator must use the required equipment
during maintenance.
Combustion head
Open the burner and make sure that all components of the
combustion head are in good condition, not deformed by the
high temperatures, free of impurities from the surroundings
and correctly positioned.
Flame inspection window
Clean the glass when necessary.
Burner
Check that there are not excess wear or loosen screws. The
screws securing the electrical leads in the burner plugs should
also be fully tightened.
Clean the outside of the burner.
Clean and grease the adjustable profile of the cams.
Fan
Check to make sure that no dust has accumulated inside the fan
or on its impellers, as this condition will cause a reduction in the
air flow rate and provoke polluting combustion.
Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics in-
tact, especially: the flue gas temperature and combustion cham-
ber pressure.
20156111
Maintenance
Before carrying out any maintenance, cleaning or checking oper-
ations:
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Wait for the components in contact with heat
sources to cool down completely.
Pump
The pressure should be stable and at the level of the measure-
ments carried out at the previous control.
The depression must be less than 0.45 bar. Values other than
those measured previously may could due to a different level
of fuel in the tank.
There should be no unusual noise levels when the pump is
running.
If the pressure is unstable, or the pump runs noisily, the flexi-
ble hose must be detached from the line filter and the fuel must
be sucked from a tank located near the burner. This allows you
to identify whether the fault is due to the suction line pipe or
the pump.
If the fault is with the pump, check that the filter is not dirty. The
vacuometer, since it is applied upline of the filter, does not de-
tect any clogging. On the contrary, if the fault is due to the suc-
tion pipe, check that the filter is clean and that there is no air
in the pipe.
Filters
Check the following filter cartridges:
– in line 1)
– in pump 2)
– at nozzle 3)
and clean them or replace them if necessary.
If there is any rust or other impurities inside the pump, use a sep-
arate pump to remove any water or any impurities that have de-
posited on the bottom of the tank. Then clean the inside of the
pump and the sealing surface of the cover.
26 GB
D836
Fig. 25