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W415-0320 / D / 01.06.07
Adjust the pilot screw to provide properly sized flame. Turn
in a clockwise direction to reduce the gas flow.
Closing the air shutter will cause a more yellow flame, but
can lead to carboning. Opening the air shutter will cause a
more blue flame, but can cause flame lifting from the burner
ports. The flame may not appear yellow immediately; al-
low 15 to 30 minutes for the final flame colour to be estab-
lished.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A
QUALIFIED GAS INSTALLER!
FIGURE 45
FIGURE 46
FIGURE 47
MODEL BGNV40
NG
1/4"
LP
7/16"
FIGURE 48
VENTURI
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
VENTURI ADJUSTMENT