Maintenance; Adjustments; Pilot Burner Adjustment; Venturi Adjustment - Napoleon BGNV42N Installation And Operation Instructions Manual

Turn off the gas and electrical power before servicing the
fireplace.
CAUTION: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing. This fi replace and its venting
system should be inspected before use and at least annually by a
qualifi ed service person. The fi replace area must be kept clear and
free of combustible materials, gasoline or other fl ammable vapours
and liquids. The fl ow of combustion and ventilation air must not be
obstructed.
1. In order to properly clean the burner and pilot assembly, remove
the logs to expose both assemblies.
2. Keep the control compartment, logs, burner, air shutter opening
and the area surrounding the logs clean by vacuuming or brushing,
at least once a year.

PILOT BURNER ADJUSTMENT

Adjust the pilot screw to provide properly sized fl ame. Turn in a
clockwise direction to reduce the gas fl ow.
FIGURE 30

VENTURI ADJUSTMENT

MODEL BGNV42
NG
LP
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.

MAINTENANCE

ADJUSTMENTS

FIGURE 31
1/8"
5/16"
3. Check to see that all burner ports are burning. Clean out any of
the ports which may not be burning or are not burning properly.
4. Check to see that the pilot fl ame is large enough to engulf the
thermocouple and thermopile and reaches toward the burner with
the third jet.
5. Replace the cleaned logs.
6. Check to see that the main burner ignites completely on all open-
ings when the gas knob for the burner is turned on. A 5 to 10 second
total light-up period is satisfactory. If ignition takes longer, consult
your Napoleon® dealer / distributor.
7. Check that the gasketing on the sides, top and bottom of the door
is not broken or missing. Replace if necessary.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A
QUALIFIED GAS INSTALLER!
FIGURE 32
Air shutter is accessed beside gas valve
FIGURE 33
FIGURE 33 (not exactly as shown)
11
VENTURI
W415-0377 / E / 11.26.07