Green Heating Technology
27
f
verify the presence of the permanent air/ventilation outlets, correctly dimensioned and working, as
foreseen by the National and Local laws depending on the appliances installed;
f
verify that the evacuation flue duct corresponds to the National and Local laws and that is in good
and efficient conditions;
f
verify the correct functioning of the system of the outlet condense, also in the external parts of the
boilers, i.e. the eventual condense collector installed on the flue outlet: verify that the liquid flow is
not obstructed and that there are not inlets of gaseous combustion products inside the system itself;
f
verify that the passage of the air burning and the evacuations of the flues and of the condense will
be made correctly accordingly to National and Local laws in force;
f
verify that the conditions for the air ventilation are granted, in case of a boiler placed inside a piece
of furniture;
f
vent the primary exchanger and the coil of the DHW storage, proceeding as described in the para
-
graphs "Venting the primary exchanger" on page 29 and "Venting the storage coil" on page 29;
f
verify and, if necessary, change the boiler electronic settings to adapt its work to particular system
requirements (see "Electronic settings" on page 35);
Before turning on the boiler, verify that the pump is not blocked due to inactivity: unscrew the
cap located at the centre of the pump’s body, locate the rotor shaft behind the cap and turn it
manually using a screwdriver or other suitable tool.
f
verify that the combustion is correctly regulated: go on in this chapter as described in the paragraph
"Combustion test and adjustment" on page 31;
During the first ignition of the brand new boiler, it is necessary that burner works for at least
30 minutes, before performing combustion checks. During this time, the fumes of the eventual
residual manufacturing materials are produced, and they could alter the measured values.
f
verify the correct functioning of the boiler in heating and domestic hot water version;
f
fill in the foreseen documentation and leave to the user the copy of his competence.
Maintenance operations
The periodically maintenance operations consist in cleaning the main parts of the boiler, in the further
functioning proof (especially those described by the laws in force), and in the eventual regulations,
which could be necessary:
f
verify the absence of the gas leakages from the connections upwards the boiler;
f
verify the conformity, efficiency and good conditions of the connections to the boiler (water, gas,
heating and electrical system);
f
verify the presence of the permanent air/ventilation outlets, correctly dimensioned and working, as
foreseen by the National and Local laws depending on the appliances installed;
f
vent the primary exchanger, proceeding as described in the paragraph "Venting the primary exchang-
er" on page 29;
f
clean the burner, the exchanger and the funnel of the condense: go on as described in the paragraph
"Combustion group cleaning" on page 30;
f
check that the internal parts of the boiler are in good condition and clean;
f
verify that the passage of the air burning and the evacuations of the flues and of the condense will
be made correctly according to National and Local laws in force;
