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WARNING
• Air shutter adjustment should
only be performed by a
qualified professional ser-
vice technician.
• Ensure front glass panel is
in place and sealed during
adjustment.
CAUTION
• Soot will be produced if
the air shutter is closed
too much. Any damage due
to sooting, resulting from
improperly setting the air
shutter, is not covered under
f i r e - p a r t s . c o m
the warranty.
• The air shutter door and
nearby appliance surfaces
are HOT. Exercise caution to
avoid injury while adjusting
flame appearance.
14
SUPERIOR
• DIRECT-VENT GAS FIREPLACES (SDV35-N-2) • CARE AND OPERATION INSTRUCTIONS
®
BURNER FLAME ADJUSTMENTS
1. Refer to Figure 7 for proper flame
appearance. To adjust the flame, push/
pull adjustment rod up/down (rod located
in the lower control area). Position the air
shutter to the factory setting as shown in
the table in Figure 8.
2. Light appliance (follow lighting procedure
on lighting label in control compartment
or in this Care and Operation
Instructions).
3. Allow the burner to operate for at least
15 minutes while observing the flame
continuously to ensure that the proper
flame appearance has been achieved.
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 remains blue, adjust the air
shutter, incrementally, to a more
closed position until the proper flame
appearance is achieved.
4. When satisfied that the burner flame
appearance is normal, turn the ON/OFF
control (unit-mounted or remote switch,
depending on your application) to the
OFF position.
5. Reinstall the lower control access panel,
then proceed to finish the installation.
Burner Tube
Air Shutter
Adjustment Rod Down
(fully open position)
M
SDV35-2
Figure 8: Air Shutter Adjustment
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Adjusting Set Screw
Adjustment Rod Up
(minimum air
opening position)
F
A
C
T
O
R
Y
S
H
U
T
E T
G
s a
o
e d
s l
y T
e p
S
E
T T
N I
G
n i
h c
s e
(
m
Natural Gas
1/32 (0.8)
Propane
3/16 (4.76)
Millivolt Appliance Checkout
To light the burner, rotate the gas valve
control knob counterclockwise to the ON
position ("ON" will be at the top side of
the valve).
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 in. (10 mm) at the pilot generator
(thermopile) and the top 1/8 in. minimum
(tip) of the quick drop out thermocouple
should be engulfed in the pilot flame.
The flame should project 1 in. (25 mm)
beyond the hood at all three ports (see
Figure 9). Replace logs if removed for
pilot inspection.
Thermocouple
Pilot
Nozzels
Thermopile
Figure 9: Pilot Flame
A
R I
R
m
)
Hood
Igniter Rod
3/8 in. Min.
(9 mm)
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