baltur BT 17N Instruction Manual For Installation, Use And Maintenance page 62

ENGLISH
IRREGULARITY
Defective flame with sparks.
Flame not properly shaped with presence of
smoke and soot.
Defective flame, flickering or protruding from
combustion orifice.
Corrosion inside the boiler.
Soot at chimney outlet.
POSSIBLE CAUSE
1 Spraying pressure is too low.
2 Too much combustion air.
3 Nozzle inefficient because dirty or
worn.
4 Water in the fuel.
1 Insufficient combustion air flow.
2 Nozzle inefficient because dirty or
worn.
3 Nozzle capacity too low with
respect to combustion chamber
volume.
4 Combustion chamber unsuitably
designed or too small.
5 Unsuitable refractory coating (it
reduces excessively the space of
the flame).
6 Boiler or chimney ducts blocked.
7 Spraying pressure is low.
1 Excessive draught, only when there
is an extractor in the chimney.
2 Nozzle inefficient because dirty or
worn.
3 Water in the fuel.
4 Dirty flame disk.
5 Too much combustion air.
6 Air passage between flame disk
and diffuser excessively closed.
1 Boiler operating temperature too
low (below the dew point).
2 Alta percentuale di zolfo nell'olio
combustibile
3 Smoke temperature too low (below
180 ° C)
1 Excessive cooling (below 180 ° C)
of the fumes before the release, by
external chimney, not sufficiently
insulated, or by infiltration of cold
air.
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REMEDY
1 Restore it at the required value.
2 Reduce combustion air
3 Clean or replace.
4 Drain water from the tank using
a suitable pump. Never use the
burner pump for this purpose.
1 Increase combustion air.
2 Clean or replace.
3 Decrease diesel flow rate to suit
the chamber (thermal power will
obviously be lower than necessary)
or replace the boiler.
4 Increase nozzle flow by replacing it.
5 Modify it, carefully abiding by
the instructions given by boiler
manufacturer.
6 Arrange for cleaning.
7 Restore it at the required value.
1 Adjust the suction fan speed by
changing the pulley diameter.
2 Clean or replace.
3 Drain water from the tank using
a suitable pump. Never use the
burner pump for this purpose.
4 Clean.
5 Reduce combustion air.
6 Correct the position of the
combustion head regulating device.
1 Increase the operating temperature.
2 Change fuel oil quality.
3 Increase the nozzle flow rate by
replacing it.
1 Improve insulation and close any
opening letting cold air into the
chimney.