Ariston ALTEAS ONE Net Series Installation And Servicing Instructions page 22

INSTALLATION
For coaxial systems, the maximum development value,
mentioned in the table below also takes into account an elbow.
For twin fl ue systems the maximum development value,
mentioned in the table includes the exhaust gas/air intake
terminal.
Twin fl ue systems outlets should respect the following
instructions:
1- Use the same ø 80 mm fl ue pipes for the air intakes and
exhaust gas ducts.
2- If you need to insert elbows in the air intake and exhaust gas
ducts, you should consider for each one the equivalent length
to be included in the calculation of developed length.
3- The exhaust gas duct should jut above the roof by at least 0.5
m.
4- The intake and exhaust gas ducts in Type C13 + C53 must be
installed on the same wall, or where the exhaust is vertical
and the air intake horizontal, the terminals must be on the
same side of the building.
22 /
120
180
AIR INTAKE MUST NOT BE
FITTED ABOVE THE EXHAUST
AIR INTAKE EXHAUST
Fig. 10
AIR INTAKE
Fig. 9