PILOT FLAME CHARACTERISTICS
The correct flame will be almost horizontal, blue and will extend past the thermocouple 1/4” (6mm). The flame will surround the thermocouple just below the tip.
On Propane
Natural gas pilots require adjusting when the inlet pressure is above 5” w.c. (1.25kPa). Remove pilot adjustment cover. Turn adjustment screw clockwise to reduce flame.
Propane
Figure 5
MAIN BURNER FLAME CHARACTERISTICS
There will be a short blue inner flame with a larger, lighter blue secondary flame. The burner flame may have yellow tips when hot. Dust in the combustion air will produce and orange or red flame. Do not mistake the orange or red flame for an improper yellow flame. The flame will be proper if the
On Propane gas, if a whistling noise (resonation) occurs
a.Screw the air adjustment bolt into the burner throat to eliminate the whistling noise (resonation).
b.Size main burner orifice with a drill bit. For
Primary Air Adjustment see page 11.
Figure 6
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