20
6.0 ADJUSTMENTS
6.1
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.
AIR SHUTTER OPENINGS
LP
3/16" DIA
NG
1/16" DIA
6.2
FLAME CHARACTERISTICS
It is important to periodically perform a visual check of the burner flame. Compare them
to the illustration provided.
W415-0847 / 09.15.09
VENTURI
BURNER
AIR
SHUTTER
OPENING
49.3