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Dunkirk EXCELSIOR Series Installation, Operation & Maintenance Manual page 54

High efficiency oil fired hot water boiler
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Before servicing,
turn
off electrical
power
to boiler
at service
switch.
Turn off fuel supply
to burner.
Failure to comply
will result in death
or serious
injury.
Fire, burn, asphyxiation
hazard. Turn off service
switch to boiler to prevent accidental firing of
burner outside combustion chamber. Disconnect
burner power cord from wire harness in front jacket.
Tighten swing door fastener completely when
service is complete.
Failure to follow instructions
in
this manual and understand all requirements
could
result in death or serious injury.
19.1
Oil Boiler
Cleaning
Instructions
I.
(::lean flueways.
Figure 45, Page 55.
A.
Shut off power to burner.
B. Access to combustion chamber, remove swing door
bolts.
If boiler is equipped with flexible fuel line(s),
swing door open.
C.
Remove vent connector.
D. Remove liners & baffles (if equipped) from flue
passages. Baffles are installed in 3rd pass (two inner
flue ways.)
E. Clean 3rd Pass - Insert 2" Din. x 42" long wire or fiber
bristle brush into each of two 3rd passes. Using long
strokes, push brush all the way through boiler until
brush has exited the smoke box opening.
Pull brush all the way forward until it has exited front
of boiler,
Continue this operation for entire height of flue way
until clean.
Repeat operation for other 3rd pass flue
way.
F.
Clean 2nd Pass - Insert wire or fiber bristle brush into
each of two 2nd passes. Using long strokes, push
brush all the way through boiler until brush hits back
wall of reversing chamber.
Pull brush all the way
forward until it has exited front of boiler.
Continue operation for entire height of flue way until
clean. Repeat operation for other 2nd pass flue way.
G.
Do not start burner unless burner swing door and vent
connector are secured in place.
H. Clean passage from combustion chamber to 2nd pass.
I.
Vacuum loose debris in bottom of combustion chamber
and smoke box.
2.. (:lean combustion
chamber
and baffles. Use wire
or fiber bristle brush to clean surfaces of combustion
chamber and baffles.
Vacuum all of loose debris in
bottom of combustion chamber.
3.
After cleaning:
Vacuum all remaining debris as
necessary.
Inspect burner swing door insulation,
and
rope gasket for signs of damage.
If damaged, replace
as needed.
4.
Re=assemble
boiler.
A.
Insert liner and baffles (if equipped) into correct flue
way.
Baffles are installed in 3rd pass. (Two inner flue
ways)
B.
Inspect chimney and clean if necessary.
C. Clean and re-attach vent connector onto rear of the
boiler with three screws.
When securing
burner
swing door verify
door is
drawn-in
equally
on both sides.
Do not overtighten
door bolts.
Rope gasket
will provide
sufficient
seal
when door is snugged
into place.
D.
Tighten swing door hardware to provide adequate
seal to rope gasket around perimeter of door, Use
alternating
tightening
method from non-hinged
side to
hinged side cap screws to pull door tight equally,
Asphyxiation
hazard.
A clean and unobstructed
chimney flue is necessary to allow noxious fumes
that could cause injury or loss of life to vent safely.
Inspect periodically throughout
heating season for any
obstructions.
Failure to follow
instructions
in this
manual
and understand
all requirements
could
result in death
or serious
injury.
Connect
boiler to approved
chimney
in good
condition.
Property
damage
could result
if boiler is
connected
to dirty or inadequate
chimney.
[nspect
interior
of chimney
flue and clean before start
of
heating
season.
:1.9.2 Oil Burner
Cleaning
Instructions
Consult burner manufacturer's
instructions.

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