15ADJUST THE REGULATORA. Disconnect all electrical power, at the main circuitbreaker or fuse box.B. Shut off the gas supply to the cooktop by closing themanual shut-off valve.C. Adjust the pressure regulator by the followinginstructions:• Unscrew the cap.• Place your thumb against the flat side of the springretainer and press down to remove the retainer.• Carefully look at the spring retainer to locate the NATor LP position.• Turn the spring retainer over so that the desired gas isshowing on the bottom.• Snap the retainer back into position.• Screw the cap back onto the regulator.1CHANGE BURNER ORIFICESINSTALLATION TIP: First remove allorifices and then start replacing them.This will help to prevent the possibilitythat some may not be replaced.A. Remove the burner grates,burner caps and burner heads.B. Using a 7mm nut driver, remove thetop burner orifices. There are twoorifices per burner.The main orifice islocated low in the centerof the burner, while thesimmer orifice is locatedhigher beside the centerof the burner.2DOWNFOR OFFNATLPLPNATLPNATNATLPGasketCapSpringretainerL.P./propanepositionNAT.positionPressure regulatorBurner capBurnerheadBurnerbaseSpark igniterMainorificeSimmerorificeSAFETY INFORMATIONThe pressure regulator and burner orifices are set fornatural gas operation.To convert this cooktop from natural gas operation toLP operation, the regulator and burner orifices must beconverted. LP burner orifices are attached to the regulator.CAUTION — The cooktop, as shipped fromthe factory, is set for use with its intended gas. If youwish to use your cooktop with the alternate gas, youmust first replace the orifices and convert the pressureregulator.WARNING — This conversion must beperformed by a qualified installer or gas supplier inaccordance with the manufacturer’s instructions andall codes and requirements of the authority havingjurisdiction. Failure to follow instructions could result inserious injury or property damage. The qualified agencyperforming this work assumes responsibility for theconversion.CAUTION — The following adjustmentsmust be made before turning on the burner. Failureto do so could result in serious injury. Be sure pressureregulator has been converted as described in Step 1.TOOLS YOU WILL NEED FORCONVERSIONSafety glassesSmall flat-headscrewdriver(2 to 2.4 mm or3/32″ tip size,60 mm long)Crescent wrench 7mm nutdriverInstallation Convert Natural Gas Model ZGU384NSMSSInstructions to LP Gas OperationIf sold outside the U.S. and Canada:WARNING: If you wish to use this productwith Liquefied Petroleum (LP) gas containing greaterthan 10% butane, you must purchase the butaneconversion kit #WB28T10238. To order, please call1.888.664.8403 or 1.787.276.4051.