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2.6.6. Twin Flue Kits Ø 80/80 Flue Type Use
This kit allows air to come in from outside the building
and the fumes to exit from the chimney or flue through
divided flue exhaust and air intake pipes. Combustion
products are expelled from pipe (F) (in plastic, so as to
resist acid condensate). Air is taken in through duct (A)
for combustion (this is also in plastic). Extensions for
separator kit Ø 80/80. The maximum vertical straight
Implementation
L1
=0.5 m.
L2
=1.0 m. (90° elbow equivalent length)
L3
=1.5 m.
L4
=1.0 m. (90° elbow equivalent length)
L5
=1.5 m.
L6
=0.5 m.
L7
=1.0 m. (90° elbow equivalent length)
L8
=0.5 m.
L9
=0.5 m. (45° elbow equivalent length)
L10
=1.5 m.
L11
=1.0 m. (90° elbow equivalent length)
L12
=1.5 m.
L Total
=12 m.
12 m. < Lmax = 30 m.
Correct in implementation.
Figure 42
Hermetic flue type installation sample
ATTENTION!
For C1 boilers the terminal outlet from separete
combustion and air supply circuits shall fit
inside a square of 50 cm for boilers with a heat
input up to 70 kW.
length (without elbow) that can be used for Ø 80 intake
and exhaust pipes is 34 metres, regardless from whether
they are used for intake or exhaust. The maximum
horizontal straight length (with elbow in suction and in
exhaust) that can be used for Ø 80 intake and exhaust
pipes is 30 metres, regardless from whether they are used
for intake or exhaust.
Lenght A (Air Pipe) = 939 mm
Lenght F (Flue Pipe) = 985 mm
