Jenn-Air JGCP748HM Instructions D'installation page 14

To Convert Surface Burners
1. If installed, remove the burner grates.
2. Remove burner cap.
3. Remove the burner base by first removing (2) T-20 screws.
A
B
C
4. Apply masking tape to the end of a 1/4" (7 mm) nut driver
to help hold the gas orifice spud in the nut driver while
changing it. Insert nut driver into gas opening and press
down onto the gas orifice spud, and remove by turning the
gas orifice spud counterclockwise and lifting out. Set gas
orifice spud aside.
5. Replace with correct Propane gas orifice spud. See the
"Propane Gas Orifice Spud/Hood Chart."
Burner orifice spud
B
A. Size stamp
B. Fuel type stamp (L for Propane or
N for Natural gas)
Use the following chart to find the exact orifice spud placement.
Propane Gas Orifice Spud/Hood Chart
Burner
Stamp
Rating
7,400 BTUs 70
44
13,000 BTUs 99
50
16,000 BTUs 116
NOTE: Refer to serial tag for more information on burner ratings
and locations.
6. Place Natural gas orifice spuds in plastic parts bag for future
use and keep with package containing literature.
NOTE: There may be extra orifices in your kit.
7. Replace the burner base and screws. Tighten screws only
until burner is snug to cooktop, do not over-tighten.
8. Replace burner cap.
9. Repeat steps 2 through 8 for the remaining burners.
10. Remove the control knobs and bezels for surface burners
and grill.
NOTE: For oven controls and griddle controls, no changes
are needed.
14
Burner
A. Burner cap
B. Screws
C. Burner base
A
Size Burner Style
0.70 mm Small burner - main
0.44 mm Small burner - simmer
0.99 mm Large burner - main
0.50 mm Large burner - simmer
1.16 mm Grill burner
Adjusting Simmer Low Setting on Surface Burner for
Propane
1. Locate the Simmer low-turndown adjustment screw through
the bezel on the left side of the ignition switch.
A. Simmer low-turndown adjustment screw
B. Ignition switch
2. With the burner ON, and set to Simmer Lo, adjust the
simmer flame down to the proper BTU level. Using a
1/8" x 4 " (3.2 mm x 108 mm) flat blade screwdriver, turn
/
1
4
the simmer low-turndown adjustment screw clockwise until
the flame height is below the bottom of the cap. If the flame
becomes unstable and flickers or appears to race around the
burner, the adjustment is too low and the screw should be
adjusted counterclockwise until the flame is stable. Repeat
this step for all surface burners, except the grill burner.
NOTE: Use a knob to adjust the burner valve.
NOTE: If your cooktop has the IR grill, then skip ahead to
Convert IR Grill Burner section.
3. Replace the bezels using the 2 screws which attach to the
valve brackets.
NOTE: Make sure no wires are pinched when reinstalling
bezels.
4. Push the surface knobs onto the valve stems.
5. Replace burner grates.
To Convert IR Grill Burner for Propane
1. Unplug or disconnect power.
2. Remove the grill knob and bezel. The other surface knobs
and bezels should be off the cooktop.
3. Remove the two screws on each side of the cooktop that
hold the control console in place.
Console attachment
screws (2 per side)
Do not remove
this screw
4. Gently lift and pull console off. Place console on covered
surface to avoid scratching.
A B