Napoleon Fireplaces GD82NT-T - Manual (Page 25)

25
W415-0666 / 01.28.08
AIR
SHUTTER
OPENING
FIGURE 74
FIGURE 70
Adjust the pilot screw to provide properly sized fl ame. Turn in a
clockwise direction to reduce the gas fl ow.
FIGURE 71
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
3/8” - 1/2”
It is important to peri-
odically perform a visual
check of the pilot and
burner fl ames. Compare
them to the illustration
below.
FLAME CHARACTERISTICS
Check Pressure Readings: (Fig. 71)
Inlet pressure can be checked by turning screw (A) counter-clock-
wise 2 or 3 turns and then placing pressure gauge tubing over the
test point. Gauge should read 7” (minimum 4.5”) water column for
natural gas or 13” (11” minimum) water column for propane. Check
that main burner is operating on “HI”.
Outlet pressure can be checked the same as above using screw (B).
Gauge should read 3.5” water column for natural gas or 10” water
column for propane. Check that main burner is operating on “HI”.
AFTER TAKING PRESSURE READINGS, BE SURE TO TURN
SCREWS CLOCKWISE FIRMLY TO RESEAL. DO NOT OVER-
TORQUE.
Leak test with a soap and water solution.
PILOT
SCREW
A B
FIGURE 72
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 flame may not appear
yellow immediately; allow 15 to 30
minutes for the fi nal fl ame colour to be established.
VENTURI ADJUSTMENT
AIR SHUTTER
OPENINGS
LP 1/2”
NG 3/16”
FIGURE 73
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 vapors
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 rocks and bowl to expose both assemblies.
2. Keep the control compartment, rocks, bowl, air shutter opening
and the area surrounding the bowl clean by vacuuming or brush-
ing, 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 fl ame is large enough to engulf the
thermocouple and thermopile and reaches toward the burner
with the third jet.
5. Replace the cleaned rocks and bowl.
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.
8. If for any reason the vent air intake system is disassembled,
reinstall and re-seal per the instructions provided for the initial
installation.
MAINTENANCE