15
Installation instructions
3.7 - FUEL SUPPLY
Danger!
The gas connection must be carried out only
by a qualified installer who must respect and
apply that foreseen by relevant laws in force
in the local prescriptions of the supply com-
pany. Incorrect installation can cause damage
to persons, animals and objects for which the
manufacturer cannot be held responsible.
Check that the fuel supply system is
equipped with the safety and control devic-
es prescribed by current regulations.
If you smell gas:
a) Do not turn electric switches on or off, use
a telephone or any other object which can
create sparks;
b) Close the gas valves;
c) Immediately open doors and windows to
create an air current to air out the room;
d) Request the intervention of professionally
qualified personnel.
Do not use the fuel system pipes as earth-
ing of electrical or telephone systems.
Check that the generator is set up to operate
with the available type of fuel.
Before installation, we recommend a thor-
ough inner cleaning of all fuel adduction
piping to remove any residue which could
jeopardise proper operation of the generator.
Check the internal and external seal of the
fuel supply system.
If using gas, the connections must be per-
fectly sealed.
3.8 - CONNECTION TO THE
FLUE
With combustion pressurised, the chimney loses its primary
function of draught activator and only preserves the function of
smoke conveyor duct.
It remains, normally, the need for them to work in conditions of
depression, and this requires an adequate sizing.
The need for depression on the chimney is justified by safety
reasons, to avoid smoke filtrations in room where, for any rea-
son, there is no tightness.
The lifting force of hot gas must overcome the chimney resist-
ance and of the connection duct to the generator, while the load
losses of flue gas through the generator itself are overcome by
the burner thrust.
The correct burner/generator/chimney cou-
pling drastically reduces consumption and
optimises combustion with low polluting
emissions.
The
CHIMNEY
must be resistant to heat and condensation,
thermally insulated, hermetically sealed, without bottlenecks or
obstructions, as vertical as possible and sized according to the
provisions of current legislation.
The connection between
GENERATOR
and
CHIMNEY
must
be made:
- in compliance with current standards and legislation,
- with section at least equal to the flue gas outlet fitting of the
generator itself,
- with rigid ducts resistant to temperature, condensation, and
mechanical stress,
- hermetically sealed.
Also remember the need to provide devices for adequate
cleaning and the withdrawal of flue gas samples for combus-
tion analysis.
For sealing the joints, use materials resistant to at least
500°C.
ATTENTION:
Exhaust gases must be extracted without
compromising the safety of personnel or
third parties.
Badly sized and shaped connection fittings
and chimneys between generator and chim-
ney can amplify the combustion noise, neg-
atively affect the combustion parameters,
generate condensation problems.
