Step 19 Adjust Burner; Step 20 Install Louver Kit - Lennox Hearth Products EBVI25 Installation Instructions Manual

Step 19. 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 body 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 lowered blue, or if the fl ame is
orange with evidence of sooting (black tip), the
air shutter may require adjustment.
Appliances operated with air shutter openings
that are 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 openings are too small, sooting
may develop.
Burner Flame Appearance
f i r e - p a r t s . c o m
Figure 39
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 combus-
tion 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. Repo-
sition 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.
IMPORTANT: ENSURE THAT THE FRONT
GLASS PANEL IS IN PLACE AND SEALED
DURING ADJUSTMENT.
Burner Adjustment Procedure
AIR SHUTTER ADJUSTMENT SHOULD
ONLY BE PERFORMED BY AN AUTHO-
RIZED INSTALLER AT THE TIME OF THE
INSTALLATION OR SERVICE.
CAUTION: THE ADJUSTMENT ROD AND
NEARBY APPLIANCE SURFACES ARE
HOT. EXERCISE CAUTION TO AVOID
INJURY WHILE ADJUSTING FLAME
APPEARANCE.
Initially, always position the air shutter to the
factory setting as shown in Figure 39 (adjust-
ment rod is located in the lower control area).
This can be done by moving the adjustment
rod up or down accordingly. Allow the burner
to operate for at least 15 minutes. Observe
the fl ame continuously. If it appears weak
or sooty as previously described, adjust the
air shutter to a more open position until the
proper fl ame appearance is achieved.
Burner Air Shutter Adjustment
EBVI25
Burner Tube
Air Shutter
Adjustment Rod Down
(full open position)
MAIN BURNER FACTORY AIR
SHUTTER OPENING SETTING
Model
EBVI30 Natural Gas
EBVI25 Natural Gas
Figure 39
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Adjusting Set Screw
Adjustment Rod Up
(1/8" Open Position)
Gas Type Air Shutter Gap
5/16" (7.94mm)
Propane 1/2" (12.7mm)
1/16" (1.59mm)
Propane 1/2" (12.7mm)
CAUTION: CARBON WILL BE PRODUCED IF
THE AIR SHUTTER IS CLOSED TOO MUCH.
ANY DAMAGE DUE TO CARBONING RESULT-
ING FROM IMPROPERLY SETTING THE AIR
SHUTTER IS NOT COVERED UNDER THE
WARRANTY.
The following chart (Table 10) is provided to
aid you in achieving the correct air shutter
adjustment for your installation.
Air Shutter Adjustment Guidelines
Air Shutter Adjustment Guidelines:
Amount of Flame
Primary Air Color
If air shutter is Flame will
closed too far be yellow
If air shutter is Flame will
open too far be blue
Table 10
When satisfi ed that the appliance operates
properly, proceed to fi nish the installation.
Leave the control knob in the ON position and
the on/off switch in the OFF position.
STEP 20. INSTALL LOUVER KIT
Install louver kit per the instructions provided
with the kit.
:
Air Shutter
Adjustment
Air shutter
gap should be
increased
Air shutter
gap should be
decreased
17