Viking Professional VGSO166SS Installation Instructions Manual page 8

Gas Bake Burner Adjustments
Check the gas supply and set the regulator to the proper supply of gas. A properly adjusted burner should be stable
and quiet. The flame should have sharp, well defined blue inner cone with no yellow tipping. The flame should also
be stable and uniform with no flames lifting off the burner ports.
To gain access to the oven burner adjustment:
1. Remove the lower access panel.
2. Located the air shutter (1) and loosen the set screw (2) that holds the air shutter in place.
3. Light the burners by rotating the thermostat to a baking temperature.
4. Adjust the air shutter (1) to obtain a blue flame with no yellow tipping that contacts the burner at the burner
ports.
a. Open the air shutter gap (1) to eliminate yellow tipping.
b. Close the air shutter gap 91) to prevent a noisy flame that lifts off the burner.
5. Turn the thermostat off.
6. Tighten the air shutter set screw (2).
7. Relight burner and observe the flame for proper adjustments. If necessary, repeat the procedure above.
8. Replace the lower access panel.
IMPORTANT! Conditions that cause odors:
1. Floating flames are lazy looking and do not have well defined cones. They are long, ill-defined, quiet flames that
sometimes lift completely off the ports and cause a strong and pungent odor.
2. Lifting flames are well defined, hard and noisy that lift completely off the ports.
3. An orifice that is out of line with the burner venturi.
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