Crown Verity CV-PZ48-MB 48" Mobile Pizza Oven

User Manual - Page 25

For CV-PZ48-MB.

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Page 25 of 33
Burner Adjustments
Every burner is tested and adjusted at the factory for proper performance. If a burner is
not operating properly, it may be due to variations in the local gas supply or because of
an obstructed air shutter or orifice. Flames should be stable without lifting from the
burner. The flames should burn cleanly without creating any sooty residue.
Burner Flame Characteristics:
The flame should be blue and stable with only a small amount of orange, if any, at the
tips. There should be little noise and no lifting.
The inner cone should be 1/4 inch high.
The outer cone should be 5/8 inch high.
Visually inspect the flames in your pizza oven and adjust if necessary, using the
instructions below.
IMPORTANT:
A sooty flame is usually caused by dirt, debris or spider nests blocking the
air shutter or orifice. This is a dangerous condition. The pizza oven should NOT be used
until the problem is rectified. If you are not comfortable addressing the issue yourself,
please hire a licensed technician or contact Crown Verity Service at 1-888-505-7240.
To Clean the Air Shutter:
Turn off the gas supply shutoff valve or close the main valve on the LP cylinder. Ensure
the pizza oven control knobs are in the OFF position.
If your pizza oven is equipped with side and or front shelves, remove the shelves and
carefully place them on their backs to avoid scratching the surfaces. Next, remove the
faceplate of the burner box by removing the four screws on the outside edge of the
face. Once the four screws are removed, gently lift up and forward to remove the face.
Place the face down on its back to avoid surface scratches.
The shutter is located at the end of the burner tubes closest to the gas orifice.
Use a flashlight to view the screened openings of the air shutter from and remove any
obvious obstructions from the screen protecting the air shutter.
To Adjust the Air Shutter:
Leave the gas supply shutoff valve in the OFF position or leave the main valve on the LP
cylinder in the closed position. The pizza oven control knobs should also remain in the
OFF position.
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