2.7.5. Installation with Vertical Flue Sets (Ø 60/100 mm)
Your combi can also be vertically connected to flat and aslope roofs via
available connection accessories depending on the status of installation
place. For flat connections (Ø 60/100mm) vertical flue set should not
exceed 11 m.
2.7.6. Twin Flue Kits Ø 80/80 (Hermetic) 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 length (without bends) 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 bend 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.
Figure 41
Vertical flue set installation application
Figure 42
Hermetic flue type installation sample
Implementation
L1
=0.3 m.
L2
=0.5 m. (45° bend equivalent length)
L3
=2.0 m.
L4
=0.5 m. (45° bend equivalent length)
L5
=1.0 m.
L6
=1.5 m.
L Total
=6.3 m.
6.3 m. < Lmax = 11 m.
Correct in implementation.
Implementation
L1
=0.5 m.
L2
=1.0 m. (90° bend equivalent length)
L3
=1.5 m.
L4
=1.0 m. (90° bend equivalent length)
L5
=1.5 m.
L6
=0.5 m.
L7
=1.0 m. (90° bend equivalent length)
L8
=0.5 m.
L9
=0.5 m. (45° bend equivalent length)
L10
=1.5 m.
L11
=1.0 m. (90° bend equivalent length)
L12
=1.5 m.
L Total
=12 m.
12 m. < Lmax = 30 m.
Correct in implementation.
Figure 40
Vertical flue set installation
ATTENTION!
For C3 boilers the
terminal outlets from
separete combustion and air supply
circuits shall fit inside a square
of 50 cm and that the distance
between the planes of the two
orifices shall be less than 50 cm.
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.
A
Ø60
/100 mm
= L
ma
x. =
11 m
A
22
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