Adjustment; Venturi Adjustment; Flame Characteristics; Flame Adjustment - Napoleon GVF40P Installation And Operating Instructions Manual

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10.0

ADJUSTMENT

10.1 VENTURI ADJUSTMENT

CARBON CAN BE DISTRIBUTED IN SURROUNDING LIVING AREA IF THE AIR SHUTTER IS
This appliance 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 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; allow 15 to 30 minutes for the final flame color to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!

10.2 FLAME CHARACTERISTICS

It's important to periodically perform a visual check of the pilot and burner fl ames. Compare them to the illustra-
tions provided. If any fl ames appear abnormal call a service person.

10.3 FLAME ADJUSTMENT

Turn clockwise to
increase fl ame height
W415-0810 / 06.11.09
AIR SHUTTER OPENINGS
NG 1/4"
LP 7/16"
ADJUSTMENT
WARNING
!
IMPROPERLY ADJUSTED.
FIGURE 10.1a
FLAME
KNOB
VENTURI
AIR SHUTTER
OPENING
ORIFICE
49.2
FIGURE 10.1b
54.5