B23
L
en
25
N 2 Condens :
664Y5000 • C
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INSTALLATION
FLUE CONNECTION
Operation dependent on ambient air
(B23 installation)
To ventilate the installation room, it is necessary to provide – in accordance with the regulation
on combustion – a vent to the open air from the room with a minimum cross-section of 150 cm
2
or to make a connection with other rooms in order to release the combustion air.
Measuring vent
The flue gas measurements are only
carried out at the measuring vent.
Under normal operation of the boiler,
this vent must always be closed.
To ensure maximum acoustic comfort
is obtained, it is recommended:
- To install the boiler on a solid base
(e.g. concrete slab), rather than a hollow
base (e.g. block) that could create
a resonance volume.
- To disconnect the boiler from the
installation hydraulic system by inserting
a hose connector on the flow and return
circuit, and by ensuring that these hose
connectors are not taut or twisted.
- Not to hesitate to increase the diameter
of the flue gas exhaust pipes (minimum
diameter 80 mm).
- To disconnect the flue gas exhaust system
from the flue pipe walls, by adding soft
insulation between pipe and wall, in order
to prevent the transmission of unavoidable
vibrations in the building’s walls caused
by the flame when the boiler is operational.
