Riello RS 120/EV LN, Инструкции по установке, использованию и обслуживанию

Страница: 35 / 44

Maintenance
33 20062968
6.1 Notes on safety for the maintenance
The periodic maintenance is essential for the good operation, safe-
ty, 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.
Before carrying out any maintenance, cleaning or checking opera-
tions:
6.2 Maintenance programme
6.2.1 Maintenance frequency
6.2.2 Checking and cleaning
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases.
Significant differences with respect to the previous measurements
indicate the points where most care should be exercised during
maintenance.
Combustion head
Open the burner and make sure that all components of the com-
bustion head are in good condition, not deformed by the high
temperatures, free of impurities from the surroundings and cor-
rectly positioned.
Burner
Check that there are not excess wear or loosen screws.
Clean the outside of the burner.
Fan
Check to make sure that no dust has accumulated inside the fan or
on its blades, as this condition will cause a reduction in the air flow
rate and provoke polluting combustion.
Electrical Wiring
Check that the burner and gas train electrical connections are cor-
rect.
Boiler
Clean the boiler as indicated in its accompanying instructions in or-
der to maintain all the original combustion characteristics intact, es-
pecially the flue gas temperature and combustion chamber
pressure.
Gas leaks
Make sure that there are no gas leaks in the following areas:
- on the meter-burner pipework
- on the mixer/valve connection
- on the burner fastening flange where the seal is fitted.
Electrode unit
Make sure neither the electrodes nor probe feature marked warp-
ing or oxidation on surfaces. Make sure distances are still in line
with those indicated in this manual, readjusting to the right values
where necessary. Where necessary, remove oxide from the sur-
face of the probe with abrasive paper.
Gas train
Check valve setting and proportionality of operation by analysing
flue gases. Check the valve/manifold compensation pipe.
Gas filter
Change the gas filter when it is dirty.
Combustion
In case the combustion values found at the beginning of the inter-
vention do not respect the standards in force or, in any case, do not
correspond to a proper combustion, contact the Technical Assis-
tant in order to carry out the necessary adjustments.
6 Maintenance
DANGER
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
standards and regulations of current laws.
DANGER
Disconnect the electrical supply from the burner by
means of the main system switch.
DANGER
Close the fuel inlet connection.
Wait for the components in contact with heat sourc-
es to cool down completely.
The gas combustion system should be checked at
least once a year by a representative of the manu-
facturer or another specialised technician.
The operator must use the required equipment dur-
ing maintenance.