20
W415-0847 / A / 06.08.10
8.0 ADJUSTMENTS
8.1 VENTURI
ADJUSTMENT
This model has an air shutter that has been factory set open according to the chart below:
Closing the air shutter will cause a more yellow
fl
ame, but can lead to carboning.
Opening the air shutter will cause a more blue
fl
ame, but can cause
fl
ame lifting
from the burner ports. The
fl
ame may not appear yellow immediately; allow 15
to 30 minutes for the
fi
nal
fl
ame color to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!
NOTE: It is important that the venturi sits down tight on the orifi ce.
49.3
VENTURI
BURNER
AIR
SHUTTER
OPENING
AIR SHUTTER OPENINGS
LP
3/16” DIA
NG
1/16” DIA
8.2 FLAME
CHARACTERISTICS
It is important to periodically perform a visual check of the burner
fl
ame. Compare them
to the illustration provided.