16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
SUPERIOR
®
B-VENT GAS FIREPLACES • MODELS SLBV-35, SLBV-40 • CARE AND OPERATION INSTRUCTIONS
WARNING
•
Air shutter adjustment should
only be performed by a quali-
fied professional service
technician.
•
Ensure front glass panel are
in place and sealed during
adjustment.
CAUTION
•
Soot will be produced if the
air shutter is closed too much.
Any damage due to carboning
resulting from improperly
setting the air shutter is not
covered under the warranty.
•
The air shutter door and nearby
appliance surfaces are hot.
Exercise caution to avoid
injury while adjusting flame
appearance.
Burner Air Shutter Adjustment
Procedure
Electronic Appliance Checkout
To light the burner, refer to the lighting instruc
-
tions on
Page 24
. Ensure the igniter lights the
pilot. The pilot flame should engulf the flame
sensor as shown in
Figure 15.
APPLIANCE CHECKOUT
Millivolt Appliance Checkout
The pilot flame should be steady, not lifting
or floating. Flame should be blue in color with
traces of orange at the outer edge.
The top 3/8" (10 mm) at the pilot generator
(thermopile) and the top 1/8" minimum (tip)
of the quick drop out thermocouple should be
engulfed in the pilot flame. The flame should
project 1” (25 mm) beyond the hood at all three
ports (see
Figure 14
)
.
To light the burner, refer to the lighting instruc
-
tions on
Page 22.
Thermocouple
Thermopile
Pilot
Nozzels
SIT MILLIVOLT PILOT ASSEMBLY
3/8" Min.
(9 mm)
Igniter Rod
Pilot Hood
Proper Pilot Flame Appearance
Figure 14
1
. Locate adjustment rod and adjust air shutter
to the standard setting as shown in
Figure
13
(adjustment rod is located in the lower
control compartment).
Note: Move the adjustment rod DOWN
to decrease air and UP to increase air.
2.
Light appliance (follow lighting procedure
on lighting label in control compartment or
see the lighting instructions on
Pages 22
and 24
in this manual).
Burner Air Shutter Adjustment
Figure 13
Adjustment
Rod Up
(Fully Open
Position)
Air Shutter
Adjustment Rod Down min.
air opening position)
Burner
Tube
Adjustment Set-Screw
3.
Allow the burner to operate for at least 15
minutes while observing the flame continu-
ously to ensure that the proper flame ap-
pearance has been achieved (see
Figures
11
and 12 on previous Page
). If the following
conditions are present, adjust accordingly.
• If flame appears weak or sooty, adjust
the air shutter, incrementally, to a more
open position until the proper flame
appearance is achieved.
• If flame stays lowered blue, adjust the
air shutter, incrementally, to a more
closed position until the proper flame
appearance is achieved.
4. Leave the control knob (off/pilot/on) in the
ON position and the burner OFF/ON switch
OFF (and remote switches, if applicable).
5.
When satisfied that the burner flame ap-
pearance is normal, close the lower control
compartment door (see
Figures
11 and 12
on previous Page
).
Figure 15
Pilot
Hood
Flame Rod
(Sensor)
Igniter
Main Burner Factory Air Shutter
Opening Setting - inches (millimeters)
Model
Natural
Gas
Propane
Gas
SLBV-35/40
Closed
3/32
(2.362)
