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

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11.0

ADJUSTMENT

11.1 VENTURI ADJUSTMENT

CARBON CAN BE DISTRIBUTED IN SURROUNDING LIVING AREA IF THE AIR SHUTTER IS
This appliance has an air shutter that has been factory set open according
to the chart below:
Regardless of venturi orientation, 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!

11.2 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.

11.3 FLAME ADJUSTMENT

Turn clockwise to
increase fl ame height
W415-0810 / A / 05.04.10
AIR SHUTTER OPENINGS
NG 1/4"
LP 7/16"
ADJUSTMENT
WARNING
!
IMPROPERLY ADJUSTED.
FLAME
KNOB
49.5
VENTURI
BURNER
AIR
SHUTTER
OPENING
ORIFICE
49.1
54.5