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Section VIII: Service and Cleaning
A. General. Inspection, service and cleaning should be
conducted annually. Turn off electric power and close
oil supply valve while conducting service or
maintenance.
B. Firetubes and Combustion Chamber.
1. CLEAN THE FIRETUBES
a. For access to fireside of boiler, pull two halves
of Burner Swing Door Interlock wiring harness
apart, remove fasteners holding door closed and
open swing door.
b. Prior to cleaning boiler, lay a protective cloth or
plastic over combustion chamber liner.
c. Using a 1 1/2" diameter wire brush (30"
handle), clean firetubes. Measure 15" from end
of brush opposite handle, and mark handle. DO
NOT allow this mark to go past front end of
firetube during cleaning, or brush will hit rear
door insulation piece.
2. CLEAN THE COMBUSTION CHAMBER
Using wire or fiber bristle brush, clean inside of
combustion chamber. DO NOT let brush hit rear
door insulation piece or combustion chamber liner.
3. AFTER CLEANING
a. Vacuum debris inside bottom of rear door,
remove protective cloth, and vacuum remaining
fireside of boiler as necessary. BE CAREFUL
not to damage liner or rear door insulation
piece. Inspect front and rear door insulation
pieces, front door gaskets and combustion
chamber liner for damage. Replace any damaged
pieces.
4. CLOSE BOILER
CAUTION: Do not start burner unless burner swing
door is securely closed. Close door, install fasteners,
and tighten securely. Door should be parallel to
tubesheet when viewed from top and sides.
Reconnect two halves of Swing Door Interlock.
C. Vent/Air Intake System. Inspect for obstructions,
soot accumulation, proper support, and deterioration of
pipe, fittings, and joints.
1. Inspect inside of vent pipe.
a. Disconnect appliance adapter from boiler flue
collar.
b. Remove any obstructions and clean with a wire
brush as required.
c. Reconnect appliance adapter to boiler flue collar
as detailed in Section IV: Venting/Air Intake
Piping.
2. Clean terminal screens. Terminals must be free of
obstruction, undamaged, with screens securely in
place.
3. Terminal and wall thimbles (if used) must be
weather-tight.
4. Pipe must be full round shape, and show no damage
from impact or excessive temperature.
5. Pipe must be supported at minimum 5 foot intervals
and must not sag.
6. All vent joints must be secure and watertight.
7. All air intake joints must be secure and airtight.
D. Burner.
1. Replace the oil supply line filter.
WARNING
All boiler service and 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. Be sure to
tighten swing door fasteners completely when service is completed.