To ensure that the boiler conti-
nues to run efficiently, it must be
serviced once a year as specified
below.
Maintenance or repairs must be
performed by qualified person-
nel.
For maintenance and repairs, users
are advised to contact a qualified
technician or a Service Centre
where the personnel is specifically
trained for the purpose.
Before replacing any componen-
te or cleaning the inside of the
boiler, turn off the main switch.
Maintenance schedule
Routine maintenance should inclu-
de the following functional checks:
- general conditions of the boiler
- tightness of the system supplying
gas or oil to the boiler
- boiler ignition
- boiler combustion parame-
ters through flue gas analysis.
Individually-installed boilers need
to be checked once every two
years, cascade boilers need to be
checked once a year.
- condition and tightness of the flue
gas pipes
- condition of all the boiler safety
devices
- water tightness and scaling of the
boiler connections
- efficiency of the system safety
valve
and the following cleaning ope-
rations (with the boiler cold)
- the boiler as a whole
- the burner: this may also need to
be reset according to the manu-
facturer’s instructions (see combu-
stion check)
- boiler room ventilation grille
- flue gas side of the heat exchan-
ger. Use a brush or suction device
to remove soot deposits from the
walls and heat exchanger fins.
Alternatively, specific chemical pro-
ducts can be used provided that
the manufacturer’s instructions are
followed carefully.
Do not clean the heat exchanger
with flammable products such
as petrol or solvent.
When remounting the front panels,
check the state of the seals and
replace them if necessary.
Before acting on the boiler for
the first time, check the existen-
ce of the following:
- heating system documents and/
or certificates complying with the
applicable laws (if any) issued by
the installer
Also check that:
- the room where the boiler is
installed is suitable for the purpo-
se
- the room is adequately ventila-
ted
- flue gas pipes are the right dia-
meters and lengths
- the boiler has been installed
correctly in compliance with the
instructions in this manual
If the boiler does not function
correctly or there is a hazard to
persons, animals or property,
notify the supervisor and write a
report specifying details.
15
4 Maintenance
