50
103536-13 - 2/24
MegaSteam
Installation & Service Manual
A. CLEAN THE FLUEWAYS (See Figure 10-1).
1. For access to the combustion chamber remove
the two (2) 3/8 in. - 16 cap screws. If boiler is
equipped with flexible fuel line(s), swing door
open.
2. Remove the two smoke box clean-out covers
from the rear smoke box by removing the four
5/16-18 in. hex head bolts. It is NOT necessary
to remove the vent connector from the smoke
box to clean boiler.
If necessary, remove the vent connector if
there is evidence of heavy soot accumulation
in the boiler or to inspect base of chimney for
condensate or accumulation of debris.
3. Remove the baffles (if installed) from the flue
passages. There is a pair of baffles in each
boiler.
4. Clean the 3
rd
Pass – Insert a 2 in. dia. x 42 in.
long wire or fiber bristle brush into each of the
two 3
rd
passes. Using long strokes push the
brush all the way through the boiler until the
brush has exited the smoke box opening. Pull
the brush all the way forward until it has exited
the front of the boiler. Continue this operation
for the entire height of the flue way until clean.
Repeat the operation for the other 3
rd
pass flue
way.
5. Clean the 2
nd
Pass - Insert a 2 in. dia. x 42 in.
long wire or fiber bristle brush into each of
the two 2
nd
passes. Using long strokes push
the brush all the way through the boiler until
the brush hits the back wall of the reversing
chamber. Pull the brush all the way forward
until it has exited the front of the boiler.
Continue this operation for the entire height of
the flue way until clean. Repeat the operation
for the other 2
nd
pass flue way.
6. Vacuum the loose debris in the bottom of the
combustion chamber and smoke box.
B. CLEAN THE COMBUSTION CHAMBER – Use a
wire or fiber bristle brush to clean the surfaces of
the combustion chamber. Vacuum all of the loose
debris in the bottom of the combustion chamber.
C. 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.
D. REASSEMBLE BOILER.
CAUTION
Do not start the burner unless the burner swing
door and canopy cover plates are secured in
place.
1. Insert the baffles (if originally installed) into the
correct flue way. Refer to Table 2-5.
2. Attach the smoke box clean-out covers onto
the rear of the boiler. Verify that the rope gasket
is in good working order before assembly.
Replace rope gasket if necessary. Use the 3/8
in. hardware originally removed. Do not over
tighten. They should be snug but not bottomed
out.
NOTICE:
When securing burner swing door
make sure door is drawn-in equally on both sides.
Tighten swing door hardware to provide
adequate seal to rope gasket around perimeter
of door.
Use an alternating tightening method from right
side to left side cap screw to pull door tight
equally.
NOTICE:
Do not overtighten. The rope gasket
will provide sufficient seal when the door is
snugged into place.
WARNING
All boiler cleaning must be completed with burner service switch turned off. Boilers equipped with burner
swing door have a potential hazard which can cause severe property damage, personal injury or loss of life
if ignored. Before opening swing door, turn off service switch to boiler to prevent accidental firing of burner
outside the combustion chamber. Disconnect the burner plug from the receptacle in the front jacket. Be sure
to tighten swing door fastener completely when service is completed.
!
!
10
Boiler Cleaning
