20166849
18
GB
Maintenance
8.1
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.
Before carrying out any maintenance, cleaning or checking oper-
ations:
8.2
Maintenance programme
8.2.1
Maintenance frequency
8.2.2
Checking and cleaning
Fan cleaning
Combustion
Perform an analysis of combustion gases.
Significant differences compared to the previous test indicate the
points where the maintenance operation will need to be more
thorough.
Combustion head
Open the burner and check that all parts of the combustion head
are intact, are not distorted by the high temperatures, are free of
environmental impurities, and are positioned correctly.
Boiler
Clean the boiler according to the instruction booklet, so as to be
able to find the original combustion data, in particular; pressure in
the combustion chamber and flue gas temperatures.
Pump
In case of unstable pressure or excessively noisy pump, remove
the flexible hose from the line filter and suck up the fuel from a
tank located near the burner. This operation can identify if it is the
suction line which is responsible for the fault or the pump.
On the contrary, if the cause of anomalies is related to the suction
line, check that there is no clogged filter on the line or air intake
on the line.
Filters
Check the line filters and the nozzle present in the system. If nec-
essary, clean or replace them.
If you notice rust or other impurities inside the burner, suck up
any water and impurities deposited at the bottom of the tank with
a separate pump.
Nozzles
It is advisable to replace the nozzles every year during routine
maintenance.
Avoid cleaning the nozzle openings.
Flexible hoses
Check that they are in good condition.
Tank
Every 5 years, or as needed, remove water or impurities that
have been deposited at the bottom of the tank, using a separate
pump.
Combustion
If combustion values recorded at the start of the intervention do
not meet the standards in force or do not allow for good combus-
tion, see the table below and contact the after-sales service so
that any necessary adjustments can be made.
Allow the burner to work at full speed for about 10 minutes,
checking all the parameters specified in this manual.
Then perform a combustion analysis by checking;
•
Flue gases temperature.
•
CO2 percentage;
•
CO content (ppm);
•
The smoke index on the Bacharach scale.
8
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
Turn off the burner's power supply using the main
system switch.
DANGER
Turn off the fuel interception tap.
Wait for the components in contact with heat
sources to cool down completely.
The combustion system should be checked at
least once a year by a representative of the man-
ufacturer or another specialised technician.
The operator must use the required equipment
during maintenance.
WARNING
Make sure there is no dust accumulated inside the
fan or its blades, as this could reduce the air out-
put, causing polluting combustion.
Perform maintenance operations, being careful
not to damage or disrupt the fan during cleaning.
Summary of Contents for RDB1R GRANT MILTON 20 kW
Page 2: ...Original instructions ...
Page 22: ...Spare part list 20166849 20 ...
