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Installation info
2.2.5 -SMOKE DISCARGE AND
AIR SUCTION DUCT
CONFIGURATION
C12, C32, C42, C52, C62,
C82 - B22
type
C12
type
C32
type
C52
type C82
type
C62
type
C42
SEPARATE
type B22
C12
Boiler designed for connection to ho-
rizontal exhaust and suction terminals
directly into the atmosphere using
coaxial or dual ducts. The distance
between the air intake duct and the
flue gas outlet duct must be at least
250 mm and both end sections must
be
located within a 500 mm square.
C32
Boiler designed for connection to ver-
tical discharge and suction outlets di-
rectly into the atmosphere using coa-
xial or dual ducts. The distance betwe-
en the air intake duct and the flue gas
outlet duct must be at least 250 mm
and both end sections must be loca-
ted within a 500 mm square.
C42
Boiler designed for connection to col-
lective chimneys including two ducts,
one for the suction of combustion air
and the other for the exhaust of the
combustion products, through coaxial
or dual ducts.
The chimney must comply with
relevant applicable law provi-
sions.
C52
Boiler with separate combustion air
suction and combustion product
exhaust ducts.
These ducts can discharge into
areas with different pressure.
The dual ducts must not be loca-
ted on two opposite walls.
C62
Boiler that has to be connected to a
system of air supply and smoke of
approved type and sold apart.
C82
Boiler designed for connection to an
air supply terminal and fitted to an in-
dividual or shared chimney.
The chimney must comply with
relevant applicable law provi-
sions.
B22
Boiler designed for connection to an
external flue gas evacuation duct, with
the air for combustion taken from the
room in which the boiler is installed.
For this type of installation the boiler
house follows the same installation re-
quirements used for the open type boi-
lers.
