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3.2.6.2. Forced draught boiler
3.2.6.2.1 Configuration of air intake and flue gas discharge ducts
Type
C12
Type
C32
Type
C42
Type
C52
Type
C82
Type
B22
B22
This boiler is conceived for connection
to an existing flue system either internal or
external to the boiler room. Combustion air
is taken directly from the boiler room itself
while flue gas is conveyed to the outside.
The boiler is not to be fitted with an anti-
wind gust device, while it is to be equipped
with a fan, mounted after the combustion
chamber.
C12
This boiler is designed to be con-
nected to horizontal outlet and intake ducts
connected to the outside by means of
coaxial or split ducts.
The distance between the air intake duct
and the flue gas outlet duct is to be a mini-
mum of 250 mm (refer to the picture on the
lateral area of the page) and both terminals
must be positioned within a squared area
having 500 mm sides.
C32
This boiler is designed to be con-
nected to vertical outlet and intake ducts
connected to the outside by means of coa-
xial or split ducts. The distance between
the air intake duct and the gas flue duct
is to be a minimum of 250 mm (refer to
the picture on the lateral area of the page)
and both ends must be positioned within a
squared area having 500 mm sides.
C42
This boiler is designed to be con-
nected to a collective chimney pipe system
that includes two ducts, one for taking in
combustion-supporting air and the other
for removing the products of combustion.
These ducts may be coaxial or split.
The flue gas chimney system must comply
with current standards.
C52
Boiler with separate pipes for the
combustion supporting air intake and for
removal of the products of combustion.
These flues may discharge in areas at a
different pressure. The terminals may not
face each other from opposed walls.
C82
This boiler is designed to be
connected to combustion air terminal
and to a single flue gas terminal or to
collective chimney.
The flue gas chimney must comply with
current standards.
