Burnham 81433101R16-1/10 Section Viii Service and Cleaning, Firetubes and Combustion Chamber

Section VIII: Service and Cleaning

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. Be sure to tighten swing door fasteners completely when service is completed.

NOTICE

BURNER SHUTDOWN: Open Service Switch to turn off burner.

Manual Oil Supply Valve should be closed and Electric Service to boiler turned off if boiler will not be operated for an extended period of time.

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.

2.Remove and clean the pump strainer (if applicable).

3.Replace the nozzle with an equivalent nozzle. Refer to Table 6 for Beckett Burner Settings. Refer to Table 6a for Riello BF Burner Settings.

4.Clean and inspect the electrodes for damage, replacing any that are cracked or chipped.

5.Clean the combustion head of all lint and soot.

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