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Burner Flame Check
Cast Iron Burner: At the time of installation and at periodic intervals (not more
than 6 months), a visual check of the main burner and pilot flames should be
made to determine if they are burning properly. For ideal operation, the gas and
air must be properly proportioned. The proper air-gas mixture is obtained by
adjusting the air shutter on the mixer face of the main burner (See Figure 11). To
adjust for proper burning, loosen the air shutter nut (if provided), rotate shutter to
close the opening in the burner then slowly rotate the shutter until the yellow tips
disappear and the flame becomes blue. On 75-gallon models fired on LPG or
propane, adjust the air shutter as described above until the yellow flame is
minimized (note-the burner flame may contain a mixture of yellow and blue).
Tighten the air shutter nut (if provided). Too much air will cause the flame to lift
off the burner ports and create noisy operation. Too little air will result in soot
formation. The main burner flame should light smoothly from the pilot.
Steel Burner: These models are equipped with self adjusting air mixture and do
not have an adjustable air shutter (See Figure 11). At periodic intervals a visual
check of the main burner and pilot flames should be made to determine if they
are burning properly. The main burner flame should light smoothly from the pilot.
Figure 11
INTERNET VERSION FOR REFERENCE ONLY