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N.B.: wall mounting of the indoor unit must
guarantee stable and efficient support for the
generator.
The plugs (standard supply) are only to
be used to fix the boiler to the wall; they only ensure
adequate support if inserted correctly (according
to technical standards) in walls made of solid or
semi-hollow brick or block. In the case of walls made from
hollow brick or block, partitions with limited static properties,
or in any case walls other than those indicated, a static test
must be carried out to ensure adequate support.
These indoor units are used to heat water to below
boiling temperature in atmospheric pressure.
They must be connected to a central heating system
and domestic hot water circuit suited to their perfor-
mance and capacity.
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 P1 (Fig.
52) 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 referring to the
electric connections)
“Anti-legionella” heat treatment of the storage tank
(activated by the specific function present on the
predisposed thermoregulation systems):
during this
stage, the temperature of the water inside the storage
tank exceeds 60°C with a relative risk of burns. Keep
this domestic hot water treatment under control (and
inform the users) to prevent unforeseeable damage to people,
animals, things. If required install a thermostatic valve on the
domestic hot water outlet to prevent scalding.
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 longer 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 indoor units
must not be installed in places where
commercial, artisan or industrial activities
take place, which use products that may de-
velop 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 harmful for the components of
the indoor unit and jeopardise operation.
- 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 ventilated.
ATTENTION:
failure to comply with the above implies
personal responsibility and invalidates
the warranty.
