8
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Risk of damage due to corrosion caused by unsuitable
combustion air and environment.
Spray, solvents, chlorine-based detergents, paints, glue,
ammonium compounds, powders and similar cause
product and flue duct corrosion.
- Check that combustion air power supply is free from
chlorine, sulphur, powders, etc.
- Make sure that no chemical substances are stored in the place
of installation.
- If you want to install the product in beauty salons, paint
workshops, carpenter’s shop, cleaning companies or
similar, choose a separate installation area that ensures
combustion air supply that is free from chemical substances.
- Make sure the combustion air is not fed from chimneys that
were used with gas boilers or other heating devices. In fact, these
may cause an accumulation of soot in the chimney.
Risk of material damage after using sprays and liquids
to search for leaks
Leak sprays and liquids clog the reference hole PR (Ref.
4 Fig. 39) of the gas valve, damaging it irreparably.
During installation and maintenance, do not use spray
or liquids in the upper area of the gas valve (side refer-
ring to the electric connections)
Filling the condensate drain trap.
on first lighting of the boiler, flue gas may
come out from the condensate drain; after
a few minutes’ operation, check that this no lon-
ger occurs. This means that the drain trap is filled
with condensate to the correct level preventing
the passage of flue gas.
ATTENTION:
- type B open chamber boilers must not
be installed in places where commer-
cial, artisan or industrial activities take place,
which use products that may develop volatile
vapours or substances (e.g. acid vapours,
glues, paints, solvents, combustibles, etc.),
as well as dusts (e.g. dust deriving from the
working of wood, coal fines, cement, etc.),
which may be damaging for the components
of the appliance and jeopardise functioning.
- Unless otherwise provided for by local reg-
ulations in force, configurations B
23
and B
53
:
the boilers must not be installed in bedrooms,
bathrooms or bedsits. They must neither be
installed in rooms containing solid fuel heat
generators nor in rooms communicating with
said rooms.
- The installation rooms must be permanently
ventilated, in compliance with the local reg-
ulations in force (at least 6 cm
2
for every kW
of installed heat input, except in the event of
any increases needed for electro-mechanical
vacuum cleaners or other devices that could
put the installation room under vacuum).
- Installation of appliances in B
23
and B
53
con-
figuration is recommended in non-residential
premises and which are permanently ventilat-
ed.
ATTENTION:
failure to comply with the above implies
personal responsibility and invalidates
the warranty.
