• The room where the burner is located must have the openings required by local
regulations in force. Should you have any doubts as to the circulation of the air
in the room, then you should first measure the CO
at its maximum delivery and with the room ventilated solely by means of the ope-
nings that feed air to the burner; a second CO
with the door open. The CO
second reading. Should there be more than one burner and one fan in the same
room, then this test must be carried out with all the appliances working at the same
time.
• Never cover up the burner room's air vents, the burner's fan's air-intake openings
or any existing air ducts or air gratings, thus avoiding:
- the formation of poisonous/explosive mixtures of gases in the burner room;
- combustion with insufficient air, which would be dangerous, costly and cause pol-
lution.
• The burner must at all times be protected from rain, snow and freezing.
• The room where the burner is housed should be kept clean at all times, and there
should be no volatile substances in the vicinity, substances which could be sucked
into the fan and could block up the internal ducts of the burner or combustion head.
Dust can be extremely harmful, particularly when it gets onto the fan blades as this
can reduce ventilation and lead to pollution during combustion. Dust can also build
up on the rear of the flame stability disk inside the combustion head, leading to a
poor air-fuel mixture.
• The burner must be fed with the type of fuel for which it was designed, as indicated
on the data plate and in the technical characteristics given in this manual. The fuel
feed line must be sealed and must be of the rigid variety, with an interposed metal
expansion coupling with either a flange joint or a threaded joint. Furthermore, the
feed line must be equipped with all the adjustment and safety devices required by
the local regulations in force. Particularly ensure that no foreign bodies get into the
feed line during installation.
• Ensure that the electrical power supply used conforms to the technical characteri-
stics indicated on the data plate and in this manual. The burner must be connected
to an effective system earthed in accordance with the current regulations. Should
there be any doubts, the verification should be made by qualified persons.
• Never exchange neutral and phase wires.
• The burner can be connected up to the mains supply using a plug connection only
if the latter is of the kind that does not allow neutral and phase wires to be rever-
sed. Install a main switch for the heating system on the control panel, as required
by current regulations.
• The entire electrical system, and in particular cable cross-sections, should conform
to the maximum absorbed capacityindicated on the appliance data plate and in this
manual.
• Should the burner's mains cable be found faulty, it must only be replaced by quali-
fied persons.
• Do not touch the burner with parts of the body which are wet or when in bare feet.
• Do not pull (stretch) the mains cables and keep them well away from heat sources.
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measurment should then be taken
2
value should not vary very much from the first to the
2
value with the burner working
2