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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Burner Air Shutter Adjustment
Adjustment Rod Up
(Fully Open Position)
Air Shutter
Adjustment Rod Down
(minimum air opening
position)
Burner Tube
Adjustment Setscrew
Electronic Appliance Checkout
To light the burner, refer to the lighting instruc-
tions on Pages 18 & 19. Ensure the igniter
lights the pilot. The pilot flame should engulf
the flame sensor as shown in Figure 13.
With proper care and maintenance, your appli-
ance will provide many years of enjoyment. If
you should experience any problem, first refer
to the troubleshooting guide in this manual.
If problem persists, contact your Lennox
distributor.
WIRING DIAGRAM
The wiring diagrams are provided here for
reference purposes only (Figures 14 & 15 ).
This information is also provided on schemat-
ics found on pullout lighting instruction labels
located within the control compartment attached
to the gas control valve.
CAUTION: LABEL ALL WIRES PRIOR TO DIS-
CONNECTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS APPLIANCE OPERATION.
Figure 13
3/8" to 1/2"
(9 -13 mm)
Ground
Electrode
Flame Rod
Hot Surface
Igniter
Proper Flame
Adjustment
Pilot
Nozzels
ELECTRONIC PILOT ASSEMBLY
Proper Pilot Flame Appearance
Thermocouple
Thermopile
Pilot
Nozzels
SIT MILLIVOLT PILOT ASSEMBLY
3/8" Min.
(9 mm)
Igniter Rod
Hood
Proper Pilot Flame Appearance
Proper Pilot Flame Appearance
Thermocouple
Thermopile
Pilot
Nozzels
3/8" Min.
(9 mm)
1/8" Min.
(3 mm)
Igniter Rod
Hood
HONEYWELL MILLIVOLT PILOT ASSEMBLY
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 11 or 12.
To light the burner, refer to the lighting instruc-
tions on Pages 16 & 17.
Ref. Air shutter Patent:
U.S. Pat. 5,553,603
Figure 10
Figure 12
Figure 11
Main Burner Factory Air Shutter
Opening Setting - Inches (millimeter)
Model Natural
Gas
Propane
Gas
SSDVT-3328
SSDVR-3328
1/32
(0.826 mm)
5/16
(7.94 mm)