Nexgrill DELUXE 720-0898A Owner's Manual page 13

Change Main Burner Valve Orifices
1. Remove the grates and flame tamers.
2. Remove the cotter clip that hold the burner in place.
Remove the burner from the grill by lifting the burner out.
3. Use a 6 mm socket and wrench or 6 mm nut driver to
remove the brass orifice from the end of gas valve.
Replace with the Natural gas orifice.
IMPORTANT: Check that the orifice is properly
installed inside of the burner opening.
4. Reinsert the burner and reattach using the cotter pin
previously removed. Repeat the procedure for each main
burner.
5. Position the igniters so they are 1/8" / 3.2 mm away from
each burner.
Change the Side Burner Orifice
1. Remove the two screws which were pre-assembled on
side burner tube, and the igniter wire from side burner
tube. Lift side burner tube out from side burner firebox,
as shown below.
2. Use 6 mm socket wrench or 6 mm nut driver to remove
the orifice. Replace with the Natural gas orifice.
IMPORTANT: Check that the orifice is properly
installed inside of the valve.
3. Reinstall the side burner. Install and tighten the two
screws and reconnect the igniter wire.
4. Open the manual shutoff valve in the gas supply. The
valve is open when the handle is parallel to the gas pipe.
5. Test all connections using an approved noncorrosive
leak- detection solution. Bubbles will show a leak.
Correct any leak found.
6. For normal operating sequence of the ignition system,
see "Lighting Instructions" on page 9.
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