baltur BT 15 N Manual De Instrucciones página 39

INSTRUCTIONS FOR TROUBLE - SHOOTING AND REPAIRING OPERATING
PROBLEMS WITH HEAVY OIL BURNERS
PROBLEM
Poorly shaped fl ame with smoke
and soot
Defective flame, pulsanting or
detaching from the combustion
orifi ce
Corrosion inside the boiler
Soot at the mouth of the chimney
POSSIBLE CAUSE
1) Insuffi cient combustion - supporting air
2) Dirty or worn nozzle
3) Combustion chambre too small or of
unsuitable shape
4) Nozzle capacity too low with respect to
combustion chamber volume
5) Fuel oil temperature too low
6) Unsuitable or excessive refractory
lining
7) Clogged chimney or boiler ducts
8) Low atomizing pressure
1) Too much draft (only if there is a chi-
mney fan)
2) Preheating temperature unsuitable
for the
type of fuel oil employed
3) Dirty or worn nozzle
4) Water in the fuel oil
5) Dirty disk
6) Excess combustion - supporting air
7) Air passage between disk and orifi ce
too closed down
1) Boiler operating temperature too low
(lower than the dew point)
2) High percentage of sulphur in fuel oil
3) Fume temperature too low
(below 180 °C)
1)Fumes cool down too much
(below 180°C)
before reaching the stop, due to an in-
suffi ciently insulated exterior chimney
or to infi ltration of cold air
37 / 59
98331 ed 2007/01
REMEDY
1) Increase combustion - supporting air
2) Clean or replace
3)Change the shape or decrease the capa-
city of the nozzle in function of the com-
bustion chamber, or replace the boiler
4) Replace the nozzle, increasing its ca-
pacity
5) Increase
6) Modify or decrease, in accordance with
boiler manufacturer instructions
7) Clean
8) Raise pressure to the proper value
1) Modify pulley diametrs to change fan
speed
2) Increase or decrease
3) Clean or replace
4) Drain water from the preheating tank and
the mesh fi lter trough the drain plugs.
Drain water, if necessary, from the fuel
tank as well, using a suitable pump (ne-
ver use the burner pump to do this)
5) Clean
6) Reduce combustion - supporting air
7) Correct the position of the combustion
head regulation unit
1) Increase operating temperature
2) Change type of fuel oil
3) Replace nozzle, increasing nozzle
capacity
1) Increase chimney insulation and elimina-
te any openings where cold air can enter