octagon v2.16
Page 33
The values of the fan in TABLE 1 (see §19.1) are indicative and may need to
be revised by you.
Each system “burner -boiler-chimney” has its own characteristics and it
might require new adjustments of fan values. The shortage of air fan may
cause - in addition to poor combustion – an overload of fuel in the burner’s
flame tube and malfunction of the whole system.
To avoid this situation ALWAYS use flue gas measuring instruments at
first fire up of the burner.