Dunkirk 3EW.65 Installation, Operation & Maintenance Manual page 21

Nozzles And Electrodes
and spray pattern nozzle. Refer to recommended nozzle
selection charts.
To install nozzle, remove nozzle line electrode assembly,
if necessary remove retention ring assembly, and install
and tighten nozzle. Take care not to damage electrode
insulators or bend electrode tips.
After installing nozzle, reassemble nozzle line electrode
assembly and set electrode tip spacing.
Depending on burner type, electrode tip spacing may
need to be set prior to reassembling nozzle line electrode
assembly.
Refer to following pages for setting electrode tip spacing.
Final Burner Adjustments:
must be made using combustion test instruments. Refer to
"Burner Settings". Set burner accordingly.
• Check draft over fi re to verify it is between 0.01" WC
and 0.02" WC, adjust draft as necessary.
• After operating 10 minutes to warm up boiler, use
combustion test equipment to take smoke reading in
fl ue pipe between boiler and draft regulator.
• Smoke reading should be zero to trace (Shell Bacharach
Scale).
• A new boiler requires more than 10 minutes to burn
clean due to oil fi lm on new heat exchanger.
• If smoke reading is zero, gradually close burner's air
adjustment to obtain smoke reading showing trace
smoke reading. Once smoke reading is trace, measure
CO and as insurance margin increase air to suffi ciently
2
reduce CO by ½% to 1%.
2
If clean fi re cannot be obtained, it is necessary to verify
burner head and electrode alignment. Proper electrode
alignment fi gures are presented on following pages. If
fi re continues to be smoky, replace nozzle with correct
replacement.
Once burner is completely adjusted, burner should
be started and stopped several times to assure good
operation with no fl uttering or rumbling. Verify there
are no oil leaks and record nozzle size, oil pressure,
combustion readings, and air settings on tag or label
attached to burner or, boiler.
OPERATING THE BOILER
: Use proper size, spray angle,
Final burner adjustments
Oil Burner Maintenance
or EZ2, and the Riello 40 F3, F5, or F10 perform following
preventative maintenance annually, preferably prior to
heating season.
Oil Burner Motor For Beckett and Carlin burners,
1.
add 2 - 3 drops of non-detergent electric motor oil to
each oil cup located at front and rear of motor (Riello
burners are permanently lubricated). Excessive oiling
will shorten life expectancy of motor.
Fuel Filter Replace to prevent contaminated fuel from
2.
reaching nozzle. Partially blocked fuel fi lter can cause
premature failure of fuel pump.
Fuel Pump Unit Replace pump screen and clean pump
3.
unit to maintain fuel delivery to nozzle.
Ignition Electrodes Clean and adjust per
4.
manufacturer's recommendations, to maintain reliable
ignition of oil.
Nozzle Replace to maintain safe and reliable
5.
combustion effi ciency. Replace with nozzle as required
in charts located in this manual.
Fan and Blower Housing Must be kept clean, free of
6.
dirt, lint and oil to maintain proper amount of air fuel
requires to burn.
Check Final Burner Adjustments.
7.
If any component parts must be replaced, always use parts
recommended by burner manufacturer.
21
: For Beckett AFG, Carlin EZ1