Lennox Hearth EBVI30 - Manual (Page 7)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. 7
PROCEDURE FOR REMOVING STANDARD
GLASS DOOR ASSEMBLY
Burner Flame Appearance
BURNER ADJUSTMENT
Flame Appearance and Sooting
Proper fl ame appearance is a fl ame which is blue at the base and becomes
yellow/orange in the top of the fl ame. When the insert is fi rst lit, the
entire fl ame may be blue and will graduallay turn yellow/orange during
the fi rst 6-8 minutes of operation. If after 6-8 minutes the fl ame stays
blue, or if the fl ame is orange with evidence of sooting (black tip), the
air shutter may require adjustment.
An appliance operated with an air shutter opening that is too large will
exhibit fl ames that are blue and transparent. These weak, blue and
transparent fl ames are termed anemic. If the air shutter opening is too
small, sooting may develop.
Sooting is indicated by black puffs developing at the tips of very long
orange fl ames. Sooting results in black deposits forming on the logs,
appliance inside surfaces and on exterior surfaces adjacent to the
vent termination. Sooting is caused by incomplete combustion in the
fl ames and lack of combustion air entering the air shutter opening. To
achieve a warm yellow to orange fl ame that does not soot, the shutter
opening must be adjusted between these two extremes.
No smoke or soot should be present. Reposition the logs if fl ames
impinge on any of them. If the logs are properly positioned and
sooting conditions exist, the air shutter opening on the main burner
tube should be adjusted.
Figure 13 EBVI25 Shown
Release latch on
each side (below door)
Remove the front door assembly from insert as follows:
1) Open the two latches below the glass door as shown in Figures
11 & 12.
Figure 11
2) Swing the bottom of the door outward (see Figure 12) and lift it
off of fi rebox top. Set door aside in a safe place.
Figure 12
Latches
Glass Door
Top
Flange
Door
Frame
Firebox Floor
Bottom Vee-fl ange
Door Frame
Glass Door
WARNING
Handle glass door with extreme care! The glass
door assembly is susceptible to damage. Do not
scratch while handling or while reinstalling.
WARNING
Never operate unit without the front glass door panel
in place and secure.
IMPORTANT
Ensure that the front glass panel is in place and
sealed during adjustment.