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W415-1349 / A / 03.18.15
43
EN
It’s important to periodically perform a visual check of the pilot and burner fl ames. Compare them to the
illustration provided. If any fl ames appear abnormal call a service person.
FLAME MUST ENVELOP
UPPER 3/8” (9.5mm) TO 1/2”
(12.7mm) OF FLAME SENSO
R
PILOT
BURNER
ELECTRODE
FLAME
SENSOR
3/8” - 1/2”
(9.5mm - 12.7mm)
54.1B
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 colour to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!
AIR
SHUTTER
OPENING
VENTURI
BURNER
ORIFICE
49.1
To access the air shutter, remove the control access panel, remove the
glass door assembly and carefully remove the log set. Remove the four
screws attached to the burner pan. Slide the burner pan to the left roughly
1” (25.4mm) then lift up.
Air shutters have been factory set open according to the Venturi
Adjustment Chart. These settings are for (maximum) horizontal termination.
Adjustment may be required depending on fuel type, vent confi guration and altitude.
VENTURI ADJUSTMENT CHART
FUEL HDX40-1
NG 3/16” (4.8mm)
LP 7/16” (11.1mm)
10.3 VENTURI ADJUSTMENT
10.4 FLAME CHARACTERISTICS
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