Burner Flame Appearance & Sooting Page 11 Burner Air Shutter Adjustments; Millivolt Appliance Checkout; Electronic Appliance Checkout - Superior SSDVST-CNM-B Care And Operation Instructions Manual

Burner Air Shutter Adjustment Procedure
WARNINGS
• 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.
CAUTIONS
• 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.
1. Locate adjustment rod and adjust air shutter
to the standard setting as shown in Figure
11 (adjustment rod is located in the lower
control area).
Note: Rotating the adjustment rod coun-
terclockwise decreases air and clockwise
increases air.
2. Light appliance (follow lighting procedure on
lighting label in control compartment or see
care and operation manual).
3. Allow the burner to operate for at least 15
minutes while observing the flame continu-
ously to ensure that the proper flame appear-
ance has been achieved (see Figures 7 and
10). 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.
. 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 appear-
ance is normal, close the lower control
compartment door then proceed to finish
the installation.
12
***Main Burner Factory Air Shutter
Opening Setting - All Models
Natural Gas Propane Gas
inches (mm) inches (mm)
* TWO 1/8 (3) Slots ** TWO 11/16 (17) Slots
Adjustment Rod Positions, viewed from above:
* Natural Gas - fully clockwise
** Propane- fully counter clockwise
***Settings are shown for each burner.
Note - Both air shutters open and close
simultaneously when the air shutter adjusting
rod is moved.
Burners are omitted in this view for clarity.
Figure 11

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 12).
To light the burner, refer to the lighting instruc-
tions on Pages 17 and 18.
MILLIVOLT PILOT ASSEMBLY
Proper Pilot Flame Appearance
Hood
Thermocouple
Pilot
Nozzels
Thermopile
Figure 12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Air Shutter
Adjusting
Rod
Air Shutter
Increase Shutter
Opening In This
Direction
Decrease Shutter
Opening In This
Direction
Note - Both air shutters open and close simultaneously
when the air shutter adjusting rod is moved.
Note - Burners are omitted in this view for clarity.

Electronic Appliance Checkout

To light the burner, refer to the lighting instruc-
tions on Pages 19 and 20. Ensure the igniter
lights the pilot. The pilot flame should engulf
the flame sensor as shown in Figure 13.
ELECTRONIC PILOT ASSEMBLY
Proper Pilot Flame Appearance
Proper Flame
Adjustment
Pilot
Nozzels
Igniter Rod
Figure 13
3/8" Min.
(9 mm)
Burner
Venturi
Opening
Tube
Orifice
Air Shutter
Adjusting
Arms
Ref. Air shutter Patent:
U.S. Pat. 5,553,603
3/8" to 1/2"
(9 -13 mm)
Ground
Electrode
Flame Rod
Hot Surface
Igniter