23
COMBUSTION ADJUSTMENT OF BURNER
All adjustments below must be made with the following equipment:
1. Draft Gauge 3. CO Tester
2. O
2
or CO
2
Analyzer 4. Water Column Gauge
Flame Spreader Adjustment (P250AF Only)
The flame spreader is used to shape the flame to best suit the firing chamber. Depending on the firing chamber,
the flame spreader can be used to produce a long narrow flame or a short bushy flame.
FIGURE 16: FLAME SPREADER LOCATION
To adjust the flame spreader on a P250AF burner, first loosen the set screw located on the back of burner near
the bottom using a 3/32 inch Allen wrench.
FIGURE 17: FLAME SPREADER SET SCREW LOCATION
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