INSTALLER
30
“FORCED/OPEN INSTALLATION” (TYPE B23P/ B53P)
Boiler gas vent flue (Ø 80)
The vent flue can be oriented in whatever direction is
most convenient for the room. In this configuration, a Ø
60-80 mm adapter must be fitted in order to connect the
boiler to a Ø 80 mm vent pipe.
b
In this type of installation, comburent air is drawn
from inside the boiler room, which must therefore
have adequate ventilation.
b
Uninsulated flue pipes are potentially dangerous
and can cause burns.
b
Ensure that the flue gas vent pipe has a 1% slope
towards the boiler.
b
The boiler automatically adapts its ventilation sys-
tem to suit the type of installation and the length of
the flue.
Maximum length of flue gas
vent pipe (Ø 80)
(m)
Pressure drop
(m)
45° bend 90° bend
47
0.5
0.8
