28
Horizontal Flue Set (SRD 20/27)
Horizontal concentric
fl
ue kit Ø60/100 mm polypropylene inner pipe adjustable through 360°.
Discharges exhaust fumes and draws air from atmosphere.
Suitable for
condensing boilers
only. Dis-
charges exhaust gases and draws combus-
tion air by means of two concentric ducts. The
external Ø100 duct draws the combustion air
while the Ø60 plastic inner duct discharges
the exhaust fumes. The discharge duct can be
connected directly to the outside or can be con-
nected to a suitable combined
fl
ue system.
MAXIMUM FLUE LENGTH:
6 m (SRD 20)
5 m (SRD 27),
The maximum
fl
ue length (linear equivalent)
is obtained by summing the length of linear
pipe and the equivalent lengths of each bend
fi
tted.
The
linear equivalent
is intended as being the
total length of the duct from the connection
with the combustion chamber of the appliance,
excluding the
fi
rst bend.
The linear equivalent of additional bends is
as follows:
Ø 60/100 x 90° bend = 0.8 m.
Ø 60/100 x 45° bend = 0.5 m.
N.B.:
USE ONLY ALARKO TYPE-APPROVED
FLUE SYSTEMS FOR DISCHARGING EX-
HAUST GASES AND DRAWING COMBUS-
TION AIR.
48.5
313
48.5
100
60
60
100
131
163
83
97
