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36" GAS COOKTOP WITH SEALED  

(SPILL-PROOF) BURNERS

IMPORTANT SAFETY NOTICE: This information is intended for  

use by persons possessing adequate backgrounds of electrical, electron-

ic and mechanical experience. Any attempt to repair a major appliance 

may result in personal injury and property damage. The manufacturer or 

seller cannot be responsible  

for the interpretation of this information, nor can it assume  

any liability in connection with kits use.

DISCONNECT POWER BEFORE SERVICING

IMPORTANT:

 Reconnect all grounding devices. All parts of this appliance ca-

pable of conducting electrical current are grounded. If grounding wires, screws, 

straps, slips, nuts or washers used to complete a path to ground are removed 

for service, they must be returned to their original position and properly fas-

tened.

GAS SUPPLY SHUT-OFF VALVE:

Certain models of the cooktop are equipped with a gas shut-off valve. This valve  

may be turned to the off position by rotating the shut-off valve knob, mounted in the con-

trol panel of the maintop. This shut-off valve is 

NOT

 meant to replace the main cooktop 

shut-off valve mounted downstream of the gas regulator.

IGNITION SYSTEM

:

The Ignition System consists of 4 spark switches (1 on each valve), 4 spark electrodes 

(1 on each burner) and a spark module. The burner control knob must be turned to the 

LITE position to light the burner and out of the LITE position to stop the sparking after the 

burner has ignited. All 4 electrodes will spark when any burner control knob is in the LITE 

position.

SPARK MODULE ACCESS:

Access to the spark module varies depending upon the model number of the product. 

Please check the name and number plate to identify the model number prior to any 

disassembly.

• 

Make sure that power is disconnected before servicing.

• 

Remove all control knobs.

• 

Remove all burner caps.

For all cooktops with glass maintop:

• 

Remove the screws securing the burner bases. Use a number 15 torx bit for 

this removal.

• 

Lift the burner bases up from the glass maintop and remove the spark ignition wire 

from each burner electrode.

• 

Lift the cooktop from the burner box bottom. The spark module is mounted in the 
burner box bottom.

Testing flame stability:

Test 1 – 

Turn the knob from “HI” to “LOW” quickly. If the “LOW” flame goes out, increase 

the flame size and test again.

Test 2 – 

With the burner on the “LOW” setting, open and close the cabinet door under the 

cooktop. If the flame is extinguished by the air currents created by the door movement, 

increase the flame height and test again. 

Flame recheck:

After the adjustment is made, turn all burners off. Ignite each burner individually. Observe 

the flame at the “HI” position. Rotate the valve to the “LO” position and be sure that the 

flame size decreases as the valve is rotated counterclockwise.

CONVERSION TO L.P./PROPANE GAS

:

The cooktop is shipped with a convertible regulator and a set of L.P/Propane gas orifices.

1.

 

CONVERT THE REGULATOR:

 Remove the spring retainer cap from the regulator body. 

Remove the plastic spring retainer from the center of the cap. Turn plastic spring 

retainer upside down and re-install in cap.

2.

 

INSTALL THE L.P./PROPANE ORIFICES: 

Remove the electrode 

from the burner base. Remove the burner base using a No. 15 "torx" type  

bit. Using a 7mm nut driver, remove the natural gas orifice from each burner. Install 

the L.P./Propane orifices supplied with the cooktop.* 

Note: The 18,000 BTU burner has two orifices, one main orifice and one simmer 

orifice. Both must be replaced in converting to LP/propane gas.

IMPORTANT:

 Save the orifices removed from the appliance for future use. To convert 

back to natural gas, reverse the previous steps.
*

 

Use the Burner/Orifice specification chart to determine proper location 

of orifices.

LOW FLAME (SIMMER) ADJUSTMENTS:

To adjust the simmer setting on all burners, except models that have an 18,000 BTU right 

front burner, perform the following:
The top burner valves have low flame adjustment screws in the control valve body. A 

flashlight may be required to locate the screw. A thin, flat blade (approximately 3/32" 

across) screwdriver is needed to access the screw.

For cooktops with 18,000 BTU right front burner:

• 

Remove right rear, left front and left rear burner bases by lifting from maintop.

• 

Pull burner electrode up from maintop and remove spark ignition wire.

• 

Remove three screws (from each burner) that hold the maintop to the burner spider. A 

number 15 torx bit is required.

• 

Remove burner head from right front burner by pulling straight up from burner base. 

(

Note:

 this is a snug fit, so pull straight up).

• 

Remove two screws that secure the burner base to the burner inlet.

• 

Remove the burner base from the maintop. The maintop may now be removed, expos-

ing the spark module.

For cooktops with 12,000 or 9,500 BTU right front burner:

• 

Remove the burner bases by lifting from maintop.

• 

Pull burner electrode up from maintop and remove spark ignition wire.

• 

Remove three screws (from each burner) that hold the maintop to the burner spider. A 

number 15 torx bit is required.

• 

Remove the maintop, exposing the spark module.

To adjust the simmer setting on the burner:

• 

Light 2 other burners and set the knob to a Medium to Hi setting.

• 

Light the burner to be adjusted and turn the knob to “LOW”.

• 

Remove knob.

• 

Insert screwdriver through access hole in the valve switch. 

Engage adjustment screw in valve.

• 

Turn the adjustment screw until the flame reaches the 

desired size.

Note: 

Some models may contain a silicone shield which covers the 

valve switch and access hole. A flashlight may be required to locate 

the access hole. To access the valve adjusting screw, push the 

screwdriver through this shield. After adjustment, 

reseat the shield 

around the switch hub with your fingers

, after withdrawing the 

screwdriver.

• 

Perform a flame stability test.

• 

For the right front burner, if 18,000 BTU, the simmer screw is accessed through the 

burner valve shaft. Use a small flat-head screwdriver (4mm or 5/32" tip size, 60mm 

long) to make the necessary adjustments. 

FOAM GASKET ON BURNER BOX 
(Non-Glass Models only)

There is a foam gasket (seal) between the cooktop and the burner box. This gasket must 
stay in place to ensure proper airflow to the burners.

 

CAUTION:

1.

  When replacing burner bases on glass top models, do not tighten screws beyond 10 

in. lbs. torque.

2.

  When replacing the burner base on the 18,000 BTU burner, make sure you do not 

tighten the base too tightly to the burner inlet. Over tightening will cause stripping of 

the screw.

3.  Cooktops:

 Before removing glass maintop, inspect the installation from below 

to be sure cooktop is resting on the burner box top mounting flange and 

not 

the 

glass maintop.

4. 

The rubber seal must be re-installed to prevent spillovers from seeping into the 

burner box bottom.

ORIFICE SPUD  

LOCATED THRU  

THIS OPENING 

ORIFICE SPUD  

LOCATED THRU  

THIS OPENING 

ORIFICE SPUD

LOCATED THRU

THIS OPENING

Cap

Head

Base

Remove

This

Assembly

Cap

Head

Base

Cap

Head

Base

CHANGING COOKTOP BURNER ORIFICES

Locate the L.P./Propane orifices. Remove the orifices from the bracket. 

The L.P./Propane orifices are shipped in the literature package. They will 

have a digit number and the letter “L” on one side. 

(Important: Save the 

orifices removed from the appliance for future use.)

Each orifice will also show a series of engraved marks, (I, II, III, X, or 

none), located on the top. These marks denote the precise location of 

each orifice to the cooktop burner. 

The 18,000 BTU/HR burner has 2 

orifices with markings located on 

the side only. See rating plate on 

bottom of cooktop.)

18,000 BTU/HR BURNER 

(on some models)

NOTE:

 The main orifice is located 

low in the center of the burner while 

the simmer orifice is located higher 

behind the center of the burner.

       

 

Model

 

JGP630 

II 

III

 

JGP963 

III 

 

JGP970 

 

ZGU36K

 

JGP975 

III 

    Replace: 

 

With: 

 

 

 

Main  206X N 

 

   108X L

 

 

 

 Simmer  

57N 

 

   34L 

Left Front 

Orifice

Right Front 

Orifice

31-14352

Reseat silicone shield

CORRECT

INCORRECT

Installation over Built-In 

oven. See Built-In oven instal-

lation for complete installa-

tion instructions.

21" (21-1/4" Max. 

for Glass-Top 

Models)

13" MAX. depth 

of unprotected 

overhead 

cabinets

6" MIN. clearance 

from cutout to 

side wall on the 

right of the unit

18" MIN. height 

from countertop to 

nearest cabinet on 

either side of unit

3-3/4" MIN. 

clearance from 

cutout to side 

wall of the left 

of the unit

2-1/4" MIN. 

between cutout 

and the wall 

behind the 

cooktop

2-1/2" MIN. 

from front edge 

of cutout and 

front edge of 

countertop

33-7/8" 

length 

of cut

16-15/16"

19-1/8" Cutout

3" MIN

Pressure 

regulator

Shut Off 

Valve

Electrical outlet 

12" below 

countertop

Electrical  

Cord 

34" Long

1/2" Pipe

Coupling

19-1/8" 

width of cut

18-7/8"

36"

13-11/16"

30" MIN. 

clearance from 

countertop to 

unprotected 

overhead 

surface

5" to center of 

2" hole from 

countertop

90° Elbow

Cabinet sides

2" dia. hole (20-7/8" 

from front of  

countertop to hole 

center)

I

II

III

X

I

II

III

X

Main

Orifice

Simmer

Orifice

Units with 4 

burners

Units with 

5 burners

18k burner 

only

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