Smeg PVA96 - Manual (Page 9)

Instructions for the installer
11
4. ADAPTING TO DIFFERENT TYPES OF GAS
Before any intervention, disconnect the power supply of the device.
The hob has been adjusted for natural gas at a pressure of 1.0kPa.
If used with other types of gas, you have to replace the nozzles and
regulate the primary air to the burners. Then regulate the minimum flame
on the gas taps. For nozzle replacement and burner adjustment you must
raise the hob as described in the following paragraph.
4.1 Removing the top
1. Slide out the grids, and remove all burner caps, flame cap crowns
and burners.
2. Remove the screws and nuts A which hold burner supports in place.
3. Remove
plates B.
4. Lift up top C with the aid of a screwdriver and remove it from its seat.
5. Replace the burner nozzles according to the specifications in the
reference gas table.
6. Adjust primary air as described in paragraph “4.2 Regulation for
LPG”.