Lennox COWB2

27
1. Make sure all electrical power to the boiler /
burner and the fuel supply to the burner are
shut off.
2. With the swing door open, clean any soot ac-
cumulations from the end of the burner and if
applicable burner head.
3. Remove the burner drawer assembly, clean
the electrodes and then reset the electrode
spark gap per the manufacturer’s recom-
mendations. Refer back to the section in
this manual on OPERATING THE BOILER
Nozzles and Electrodes.
4. Replace the oil nozzle with the exact same
size and type recommended for use on this
boiler.
5. Reinstall the burner drawer assembly making
sure the head location (and size if applicable)
are per the manufacturer’s recommendations.
If the burner being used has a damaged head,
replace the head with the exact same head
recommended for use on this boiler.
Oil BUrNer CleaNiNg
These are general instructions for cleaning an oil burner. For specics, con-
sult the burner manufacturer’s instructions.
6. Inspect and clean the oil burner blower
wheel.
7. Remove the oil pump cover and clean / replace
the pump screen. Carefully reassemble ensur-
ing the pump cover makes a proper seal.
8. Securely fasten the swing door shut.
9. Replace the fuel lter (if applicable).
10. Reconnect the electrical and fuel supplies.
11. Fire the burner, checking for proper combus-
tion using combustion test equipment and
making adjustments as necessary. Refer to the
section in this manual on OPERATING THE
BOILER Final Burner Adjustments.
12. Insure that all safety controls and operating
controls are functioning properly.