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
After use, cleaning of the pilot burner may be required for the proper flame. The pilot orifice can be cleaned with high pressure air or by placing under running water. Pilot orifice must be dry before replacement. Use a pipe cleaner to clean inside the pilot after the pilot orifice has been removed.
To Remove Pilot Orifice
1.Disconnect the pilot supply line at the pilot burner.
2.Remove pilot orifice from pilot burner.It may be necessary to tap on pilot burner in order to remove the pilot orifice.
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 an orange or red flame. Do not mistake the orange or red flame for an improper yellow flame.
Attention: On Propane gas, if a whistling noise (resonation) occurs close the air shutter on the main burner in order to reduce the amount of primary air. The reduction in primary air will soften the main burner flame and will eliminate the whistling noise (resonation).
On Propane or Natural gas if a yellow flame occurs open the air shutter on the main burner in order to increase the amount of primary air. The increase in primary air will sharpen the main burner and will eliminate the yellow flame.
After use, cleaning of the main burner may be required for the proper flame. The main burner may be cleaned by forcing water into the ports and the throat of the burner. The burner should be blown dry or heated to remove all water before replacement.
Figure 6
On Propane Gas, if a whistling noise (resonation) occurs
a.Close the air shutter on the main burner in order to reduce the amount of primary air.
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