Protherm Leopard 24 BOV User And Installation Instructions Manual - Flue Gas and Air Ducts
24
For 24 BTV, the air input and flue gas
output goes through a special double
duct. The sufficient distance must be
ensured betveen the flue gas duct and
the flammable materials to prevent the
increasing temperature of these materials
over 80°C. Horizontal segments of the duct
are laid with a slope, so that condensate
flows into an opening to the outside (or to
special condensate discharge elements).
it is possible to slightly deviate from the
direction at the elbow-to-straight-piece
connection. Vertical segments of the flue
duct must always be equipped with special
condensate discharge elements.
Maximum length and kinds of flue
design
The maximum length of a concentric and
separate double duct route is in table.
Warning:
if the length of the contrentric
double duct is more than 2 Em (separate
ducts more than 4 Em), the flue diffuser
must be taken out of the fan mouth.
Flue gas and air ducts
obr. 15
Em
obr. 16
∅
80
∅
80
L2
L1
Em
obr. 17
obr. 18
flue duct diameter
min. length
max. length with
diffusor
max. length wi-
thout diffusor
100 / 60
1,5 Em
2 Em
4 Em
80 / 80
2 Em
6 Em
18 Em
C
52
Design
C
32
Design
C
12
Design
Diffusor