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I-42
F-084392_EN • B
P
roduct
I
nstallatIon
Combustion circuit
Sealed
Connection
Via two ducts to a common duct system
(part of the building, designed for more than
one appliance)
Air inlet/fl ue outlet orifi ces
through a roof terminal that
admits combus-
tion air from the outside AND discharges fl ue
to the outside
î
Concentric ducts
OR
î
Both orifi ces are c
lose enough to come un-
der similar wind conditions
Additional requirements
î
Chimney with natural draught only
î
Condensate fl ow is not allowed into the
appliance
Combustion circuit
Sealed
Connection
Via two ducts to a common duct system
(part of the building, designed for more than
one appliance)
Air inlet/fl ue outlet orifi ces
Through a roof terminal that
admits combus-
tion air from the outside AND discharges fl ue
to the outside
î
Concentric ducts
OR
î
Both orifi ces are c
lose enough to come un-
der similar wind conditions
Additional requirements
î
Chimney with natural draught only
î
Condensate fl ow is not allowed into the
appliance
C
43(x)
C
43
Combustion circuit
Sealed
Connection
Through:
î
a single duct system
OR
î
a common duct system
(part of the building,
designed for more than one appliance)
Air inlet/fl ue outlet orifi ces
î
Flue is discharged to the roof
î
Combustion air is taken from the outside
Additional requirement
î
Condensate fl ow is not allowed into the appli-
ance
Combustion circuit
Sealed
Connection
Through:
î
a single duct system
OR
î
a common duct system
(part of the building,
designed for more than one appliance)
Air inlet/fl ue outlet orifi ces
î
Flue is discharged to the roof
î
Combustion air is taken from the outside
Additional requirement
î
Condensate fl ow is not allowed into the appli-
ance
C
83(x)
C
83
î
When connecting several boilers to the same duct (i.e. types C43(x), C83(x) or cas-
cades), make sure to install an AIC-approved flue gas damper on each boiler in the
system.
î
For B23p chimney cascade, please contact your AIC representative.
Please also refer to the additional information in
“Engineering the Chimney System” on
page I-41
for the construction of your chimney system.
i