Important Safety Information
WARNING: Explosion Hazard
Death or serious injury can result from failure to follow these instructions.
- Service by qualified technician only.
- Shut off gas supply and disconnect power before servicing.
- Reconnect all grounding devices after service.
- Replace all parts and panels before operating.
The pressure regulator and burner orifices are set for natural gas. To use propane (LP) gas, the regulator and burner orifices must be converted.
WARNING: Do not operate the cooktop when using propane (LP) gas before converting the pressure regulator and burner orifices for propane (LP) gas use. Failure to do so could cause high flames and toxic fumes, which can result in serious injury.
The propane (LP) orifices are attached to the regulator which is packaged with the unit.
Tools Required
- Flat blade screwdriver (blade approximately 3/32" across)
- Nut drivers: 1/4" or 7mm
Conversion Procedure
To adjust your cooktop for use with propane (LP) gas, follow these instructions:
- Disconnect all electrical power at the main circuit breaker or fuse box.
- Shut off the gas supply to the cooktop by closing the manual shut-off valve.
Converting the Pressure Regulator
The pressure regulator needs to be adjusted for propane (LP) gas. The regulator is shipped with the correct orifices attached.
Steps:
- Use an adjustable wrench to unscrew the hex-nut cap from the pressure regulator.
- Turn the plastic cap 1/4 turn to disassemble.
- Turn the plastic cap over as indicated in the picture. Align the tabs of the plastic cap with the slots of the hex-nut cap. Insert cap and rotate 1/4 turn to reassemble. The letters "LP" should now be visible on the top of the plastic cap.
- Screw the hex-nut cap back onto the pressure regulator.
Visual Description of Regulator Adjustment: The regulator has a metal hex-nut cap. Unscrew this cap. A plastic cap is underneath. Rotate this plastic cap 180 degrees (1/4 turn) to expose the "LP" marking, indicating it is set for propane. Reassemble the hex-nut cap. The "NAT" marking indicates natural gas.
(Visual cue: Imagine a screw-on cap on the regulator. You unscrew the outer metal cap, flip the inner plastic cap, and screw the metal cap back on. The plastic cap will show "LP" for propane.)
Converting the Cooktop Burners
The cooktop burner orifices must be replaced with the correct size for propane (LP) gas.
Steps:
- Remove the top grates, burner caps, and burner heads.
- Using a 7mm or 9/32" nut driver, remove the upper burner orifices. These may be accessed through the burner opening in the base.
- Remove the propane (LP) orifices from the bracket attached to the regulator. The top surface of the orifice is engraved for identification. Refer to the table and figure to determine the placement of the propane (LP) orifices.
- Using a 7mm or 9/32" nut driver, install the propane (LP) orifices in their precise locations. To prevent leakage, make sure the orifices are securely screwed into the gas inlets.
- Install the old orifices into the metal bracket along with these instructions, and replace onto the regulator for possible future conversion.
Visual Description of Burner Orifices: Each burner has a small metal orifice screwed into the gas inlet, located at the base of the burner assembly. These must be replaced with the correct size for LP gas. The orifices are marked with numbers indicating their size (e.g., "95" for 0.95mm) and gas type (e.g., "L" for LP, "N" for Natural Gas).
(Visual cue: Imagine small brass screws with tiny holes in them. These are the orifices. They are located at the center of the burner base and need to be swapped out.)
NOTICE: Save these orifices removed from the appliance for future use.
Checking Surface Burners
Push and turn a knob to the LITE position. A clicking sound indicates proper operation of the ignition system. When lighting any burner, sparks will appear at all burners, but gas flows only from the selected one. Once air is purged from the supply line, the burner should light within 4 seconds. After the burner lights, rotate the knob out of the LITE position. Try each burner successively until all burners have been checked.
Quality of Flames
Determine the quality of flames visually. Normal burner flames should look like:
(A) Soft blue flames — Normal for natural gas.
(B) Yellow tips on outer cones — Normal for propane (LP) gas.
Long bright yellow flames are not normal. Normal flames may show signs of an orange tint when well heated or signs of flickering orange due to particles in the gas or air.
Adjusting Low Flame Setting on Cooktop Burners
Low setting adjustments must be made with 2 other burners operating at a medium setting. This procedure prevents the low flame from being set too low, resulting in the flame being extinguished when other burners are turned on.
Steps:
- Turn on surface burners to medium setting.
- Turn the knob on the burner being adjusted to "LO" (Low).
- Remove the knob and insert a small flat blade screwdriver into the valve shaft as shown. Turn clockwise as far as possible while maintaining a stable flame. Repeat for all valves.
- If flame appears too low or unstable, slowly turn adjustment screw counter-clockwise until a stable flame exists for each burner.
- Additionally, for each burner being adjusted, quickly open and close the cabinet doors while observing the flame. If the flame is extinguished, turn the adjustment screw counter-clockwise for a larger flame. Repeat door openings until the flame is stable.
Visual Description of Adjustment Screw: The adjustment screw is located inside the valve shaft, accessible after removing the control knob. For round burners, it's a center adjustment screw. Turning it clockwise typically reduces the flame, and counter-clockwise increases it.
(Visual cue: With the knob removed, a small screw is visible inside the stem. Adjust this screw carefully.)
Additional Information
SPECIAL NOTE: To convert the cooktop back to natural gas, reverse the instructions given in making propane (LP) adjustments.
NOTICE: Once the conversion is complete and confirmed, fill out the propane (LP) sticker and include your name, organization, and date conversion was made. Apply the sticker to the cooktop near the regulator to alert others in the future that this appliance has been converted to propane (LP). If converting back to natural gas from propane (LP), please remove the sticker so others know the appliance is set to use natural gas.
Burner Output Ratings
The following tables provide BTU/HR ratings and orifice sizes for different models and gas types.
JGP5030 - Burner Output Ratings: BTU/HR (Propane (LP) Gas 10" W.C.P.)
| Burner | BTU Rate | Orifice Size (mm) | Marking |
|---|---|---|---|
| LF | 9,500 | 0.91 | 91L |
| LR | 9,500 | 0.91 | 91L |
| C | 15,000 | 1.15 | 115L |
| RR | 5,000 | 0.66 | 66L |
| RF | 12,000 | 1.02 | 102L |
(Note: "L" denotes LP (Propane) gas. Numbers indicate orifice size in mm.)
JGP5030 - Burner Output Ratings: BTU/HR (Natural Gas 5" W.C.P.)
| Burner | BTU Rate | Orifice Size (mm) | Marking |
|---|---|---|---|
| LF | 9,500 | 1.33 | 133N |
| LR | 9,500 | 1.33 | 133N |
| C | 15,000 | 1.73 | 173N |
| RR | 5,000 | 0.97 | 97N |
| RF | 12,000 | 1.52 | 152N |
(Note: "N" denotes Natural Gas. Numbers indicate orifice size in mm.)
PGP7030 and CGP7030 - Burner Output Ratings: BTU/HR (Propane (LP) Gas 10" W.C.P.)
| Burner | BTU Rate | Orifice Size (mm) | Marking |
|---|---|---|---|
| LF | 9,500 | 0.91 | 91L |
| LR | 9,500 | 0.91 | 91L |
| C | 18,000 | 1.25 | 125L |
| RR | 5,000 | 0.66 | 66L |
| RF | 12,000 | 1.02 | 102L |
(Note: "L" denotes LP (Propane) gas. Numbers indicate orifice size in mm.)
PGP7030 and CGP7030 - Burner Output Ratings: BTU/HR (Natural Gas 5" W.C.P.)
| Burner | BTU Rate | Orifice Size (mm) | Marking |
|---|---|---|---|
| LF | 9,500 | 1.33 | 133N |
| LR | 9,500 | 1.33 | 133N |
| C | 18,000 | 1.93 | 193N |
| RR | 5,000 | 0.97 | 97N |
| RF | 12,000 | 1.52 | 152N |
(Note: "N" denotes Natural Gas. Numbers indicate orifice size in mm.)
