Pilot Burner Adjustment; Maintenance; Orifice Replacement - Napoleon Arlington GDS20N Installation And Operation Instructions Manual

TURN OFF THE GAS AND UNPLUG
ELECTRICAL POWER BEFORE SERVICING
CAUTION: Label all wires prior to disconnection when serv-
icing controls. Wiring errors can cause improper and dan-
gerous operation. Verify proper operation after servicing.
This stove and its venting system should be inspected
before use and at least annually by a qualified service per-
son. The fireplace area must be kept clear and free of com-
bustible materials, gasoline or other flammable vapours
and liquids. The flow of combustion and ventilation air must
not be obstructed.
1. In order to properly clean the burner and pilot assem-
bly, remove the logs exposing both assemblies.

PILOT BURNER ADJUSTMENT

Adjust the pilot screw to provide properly sized flame. Turn
in a clockwise direction to reduce the gas flow.
VENTURI ADJUSTMENT
Remove the 2 screws securing the burner. Natural gas
models have air shutters set to 0.125" open (1/8"). Pro-
pane models have air shutters set to 0.250" open (1/4").
After making adjustments replace the burner ensuring that
the venturi tube fits over the orifice and replace the screws.
Air shutter adjustment must only be done by a
qualified gas installer!
Closing the air shutter will cause a more yellow flame,
but can lead to carboning. The flame may not appear
yellow immediately; allow 15 to 30 minutes for the final
flame colour to be established.
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MAINTENANCE

THE STOVE!
ADJUSTMENTS
FIGURE 34
FIGURE 35
FIGURE 36
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2. Keep the control compartment, logs, burner, air shut-
ter opening and the area surrounding the logs clean by
vacuuming or brushing, at least once a year.
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 flames are large enough to
engulf the thermocouple and the thermopile on one leg
and reaches toward the burner on the other leg.
5. Replace the cleaned logs.
6. Check to see that the main burner ignites completely
on all openings when the gas knob for the burner is turned
on. A 5-10 second total light-up period is satisfactory. If
ignition takes longer, consult your Napoleon dealer/dis-
tributor.
7. Check that the door gasketing is not broken or miss-
ing. Replace if necessary.

ORIFICE REPLACEMENT

1. Remove the cast front and the door, see Cast Front and
Glass Door Removal in the FINISHING section of this
manual.
2. Remove the 2 securing screws indicated and remove
the burner assembly.
3. The orifice is located on the left hand side.
4. Reinstall the burner ensuring that the venturi tube fits
over the orifice and replace the screws.
Care should be taken not to damage the gas pipe. When
removing and replacing the orifice, using a 9/16" socket
wrench, a 7/8" back-up wrench must be used on the mani-
fold, located below the housing, to ensure that the
aluminium tubing does not twist or kink.
FIGURE 37
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W415-0496 / B / 08.10.05
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