Adjustments; Pilot Burner Adjustment; Venturi Adjustment; Flame Adjustment - Napoleon GD34-1NT Installation And Operating Instructions Manual

26

PILOT BURNER ADJUSTMENT

Adjust the pilot screw to provide properly sized fl ame. Turn
in a clockwise direction to reduce the gas fl ow.
PILOT SCREW
THERMOCOUPLE
Turn counterclockwise
to decrease fl ame
height
GD34-1 FLAME CHARACTERISTICS
It is important to
periodically perform
a visual check of
the pilot and the
burner fl ames.
Compare them to
the fi gures shown.
If any fl ames appear
abnormal call a
service person.
FIGURE 63
W415-0663 / A / 01.07.08

ADJUSTMENTS

FIGURE 58
PILOT
BURNER
THERMOPILE
FIGURE 59
FLAME MUST
ENVELOPE
UPPER 3/8" TO 1/2" OF
THERMOCOUPLE &
THERMOPILE

FLAME ADJUSTMENT

Turn clockwise to
increase fl ame height
3/8" - 1/2"
FIGURE 62

VENTURI ADJUSTMENT

All fi replace models have air shutters that have been factory
set open according to the chart below. These settings are for
maximum horizontal / terminations. Adjustments may be re-
quired depending on fuel type, vent confi guration and altitude.
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 colour to be established.
GD34-1
NG 3/16
LP 3/8
FIGURE 60
NOTE: Ensure the venturi is seated onto orifi ce.
For fuel conversion refer to the instructions
included with your conversion kit.
FIGURE 61
FLAME
ADJUSTMENT KNOB
BGD34-1 FLAME CHARACTERISTICS
It is important to
periodically perform
3/8" - 1/2"
a visual check of
the pilot and the
burner fl ames.
Compare them to
the fi gures shown.
If any fl ames appear
abnormal call a
FIGURE 64
service person.
FIGURE 65
BGD34-1
NG 3/16
LP 5/16