Burnham 5B Series, User'S Information Manual

10

D.

Examination of Flue Product Carrying Areas

.  

1. 

Boiler

Flue passageways in the boiler sections should be 

checked annually for any blockage or accumulation 

of soot.  A think layer of soot on the flue gas 

passageways will affect heat transfer substantially.  

The resultant loss in efficiency will have a direct 

bearing on increased fuel consumption.

  Blockage of the flues is hazardous.  If severe, carbon 

monoxide concentrations could be lethal during the 

burning cycle.  Flames could roll outside the jacket 

creating a fire hazard.  The heat concentration could 

severely damage the base, warp the burners, melt 

the pilot tubing and wire insulation and destroy the 

ignition module inside the jacket vestibule.

  To obtain access to the flue cleanout panels, which 

are installed on both the front and rear of the boiler, 

the upper front and upper rear jacket panels must be 

removed. 

  If access to the flue cleanout panels facing the front 

of the boiler is required, the front vestibule panel 

must be removed.  See Figure 11.

  Remove the Front Cleanout Panels first by removing 

the upper and lower nuts and washers securing these 

panels to the boiler sections, see Figure 11.

  CARE SHOULD BE EXERCISED IN 

REMOVING THE CLEANOUT PLATES FROM 

THE BOLTS SO THAT THE INSULATION IS 

NOT DAMAGED.  IF DAMAGED, ALL EDGES 

OF THE CLEANOUT PLATES SHOULD BE 

SEALED WITH BOILER PUTTY WHEN 

REINSTALLED UNTIL INSULATION CAN BE 

REPLACED.

  Using a flashlight, examine all flue passageways.  If 

passageways are free of soot and obstruction, it is 

not necessary to remove the rear cleanout panels.  

If the flues need cleaning or are obstructed, call a 

qualified service agency.

Figure 11:  Inspection of Boiler Flueways