Jenn-Air 720-0727, Installation Instructions And Use & Care Manual

Page: 17 / 120

17
Record Conversion
1. The appliance nameplate is located inside the grill cabinet on
the left-hand cabinet side. With a permanent marker, check
the box next to “Natural gas” and mark through “LP -
Propane.”
In the last page of the Use and Care Guide, write “Converted to
Natural Gas.” Also record the conversion date and the
technician/company that performed the conversion.
NOTE: Place LP gas parts in plastic parts bag for future use and
keep with pack containing literature.
Adjust High Flame Setting Screw
When converting from LP to Natural gas, you will need to adjust
the high flame setting screw for ideal burner flame height.
1. Remove each control knob for the main burners and side
burner by loosening the setscrew with the Allen key.
2. Use a flat-blade screwdriver to turn the high flame setscrew
counterclockwise approximate 90°.
3. Check that burner operates at the new high flame setting. It
may be necessary to adjust the screw setting slightly more to
get the ideal burner flame height.
Check and Adjust the Burners
The burners are tested and factory-set for most efficient
operation. However, variations in gas supply and other conditions
may make minor adjustments to air shutter or low flame setting
necessary.
It is recommended that a qualified person make burner
adjustments.
NOTE: The rotisserie burner cannot be adjusted.
Checking and adjusting the grill burner flames requires removing
the grates and flame tamers.
Burner Flame Characteristics
The flames of the grill burners and side burners (on some models)
should be blue and stable with no excessive noise or lifting (LP
gas flames will have a slightly yellow tip). A yellow flame indicates
not enough air. If flame is noisy or lifts away from the burner, there
is too much air. Some yellow tips on flames when the burner is
set to HI setting are acceptable as long as no carbon or soot
deposits appear. The flames should be approximately 1" (2.5 cm)
high.
Check that burners are not blocked by dirt, debris, insect nests,
etc. and clean as necessary. If they are clean, adjust air shutters
as needed.
IMPORTANT: Before adjusting air shutters, let burners cool
completely.
To Adjust:
1. Light grill using information in the “Outdoor Grill Use” section.
2. Observe flame to determine which burners need adjustment
and how the flame is acting.
3. Turn off the valve and wait until grill and burners cool
completely.
4. Remove grill grates and flame tamers.
5. Remove the 2 screws that hold the burner in place. Remove
gas burner from the grill.
6. If flame is yellow (not enough air), turn air shutter adjustment
screw counterclockwise.
If flame is noisy or lifts away from burner (too much air), turn
air shutter adjustment screw clockwise.
Adjustment should be made clockwise or counterclockwise
from
¹⁄₈
" (3.2 mm) to
¹⁄₄
" (6.4 mm).
7. Replace gas burner, flame tamers and grates.
8. Light grill using information in the “Outdoor Grill Use” section.
See “Burner Flame Characteristics.”
A. Screw
A. Air shutter adjustment screw
1" (2.5 cm)
A
A