Oil Boiler Cleaning Instructions - Dunkirk 3EW.65 Installation, Operation & Maintenance Manual

Oil Boiler Cleaning:
Shut off all electrical power to boiler / burner and shut
1.
off fuel oil supply.
Remove vent pipe from top of boiler. Inspect pipe and
2.
chimney for signs of corrosion and deterioration. Clean
out base of chimney. If vent pipe shows any signs of
corrosion or deterioration, replace it immediately. If
chimney damage or deterioration is discovered, contact
a service technician.
Remove top jacket panel screws (5), brass wing nuts
3.
(2) holding fl ue collector top, and fl ue collector top.
Inspect gasket on underside of fl ue collector and
replace as necessary.
Before beginning to clean fl ue passageways, insure
4.
combustion chamber blanket is covered. If blanket is
not covered prior to cleaning, replace blanket once
cleaning is completed.
With access to fl ue passageways, remove soot from
5.
fi reside surfaces by brushing diagonally through fl ue
passages (see drawing below). Brushing can be made
easier by cutting end of fl ue brush off and inserting
it into drill. When brushing, take care to not damage
target wall with fl ue brush.
Figure 14 -
Brush Diagonally Through Flue
Passages
OIL BOILER / BURNER CLEANING INSTRUCTIONS
Carefully vacuum soot accumulations from
6.
combustion chamber area, take care to not damage
any of refractory or blanket insulation. To gain
access to combustion chamber fi rst check that shut
off valve on fuel oil line is closed and disconnect
fuel oil line. Open swing door by removing whiz lock
nut holding door shut.
Inspect target wall, fi re door refractory, and
7.
combustion chamber blanket (when included) for
cracking and deterioration. If there are signs of
cracking or deterioration, replace refractory or
blanket before reassembling burner / front plate.
Inspect door's braided gasket for wear and damage.
8.
Replace when necessary with braided gasket of
same material and size.
Inspect and clean oil burner.
9.
Important operating and maintenance
requirements:
• Keep your boiler and the area around it clean
• Never burn refuse or any material other than
specifi ed fuel in your boiler
25
NOTICE