40
ADJUSTMENTS
PILOT BURNER ADJUSTMENT
EXCLUDING BGD36CFG
Adjust the pilot screw to provide prop- erly sized fl ame. Turn in a clockwise direction to reduce the gas fl ow.
FIGURE 128
FIGURE 129
VENTURI ADJUSTMENT
Both fi replace models have air shutters that have been factory set open according to the chart below:
BGD36CF BGD36CFG BGD42CF
NG | 1/16" | 0 | 1/4" |
|
|
|
|
LP | 1/4" | 0 | 7/16" |
These settings are for (maximum) horizontal termination. Adjust- ment may be required 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.
Air shutter adjustment must only be done by a qualified
installer!
FIGURE 130
BGD36CFG VENTURI ADJUSTMENT
FIGURE 132
The alternate access is to remove the glass, glass ember tray and burner from the fi replace and then adjust the air shutter.
FIGURE 133 |
!WARNING
The front of the fireplace becomes very hot during operation. Let the fireplace cool completely before conducting service.
NOTE: When removing the glass ember tray make sure the glass embers are away from the center of the screen, exposing the burner, before lifting glass ember tray out.
When replacing burner, absolutely no glass can be in cup surrounding the orifice. HINT: If glass falls into cup and surrounds the orifice, insert a clean bag into a vacuum cleaner and vacuum out glass embers or replacement glass embers can be ordered from Wolf Steel Ltd.
V E N T U R I
FIGURE 131
To access the air shutter, remove the control panel, remove the two screws that secure the cover to the air housing, loosen the set screw and adjust air shutter position.