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for Technical Support
Burn Quality
– CO2 Exhaust Measurement:
A qualified service technician with an exhaust
combustion analyzer can make adjustments to the air shutter if required. Measurements are
taken through the draft gauge probe port. Exhaust gas carbon dioxide readings should be as
follows for a clean boiler:
11% ± 1%
A qualified service technician may adjust the air shutter, as shown in the figure. Loosen the
locking screws, then rotate the shutter and retighten the locking screws. A higher number
allows more air into the burner. A lower number setting allows less air. The factory
recommended settings normally work well, but
higher altitude locations may require adjustments:
EL-200B = 7
EL-375B = 6
EL-500B = 9
Burn Quality
– Smoke Measurement:
A qualified
service technician may measure smoke content,
following procedures of his smoke pump.
Acceptable results per smoke pump comparison chart = zero/trace smoke spot.
A yellow- brown smoke spot color is normal when burning used oil due to the presence
of non-combustibles.
The absence of black or dark grey soot indicates complete combustion.
View Port Cover
Visual Flame Inspection
Settings
Shutter Settings.
