Bosch NET 682 C - Manual (Page 10)

Instructions for the installer
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5. ADAPTATION TO DIFFERENT TYPES OF GAS
Before performing any cleaning or maintenance work, detach the
appliance from the electrical socket.
The hob has been inspected for G20 (2H) natural gas at a pressure of
20 mbar. For functioning with other types of gas the nozzles must be
replaced and the primary air adjusted.
To replace the nozzles and regulate the burners, you have to remove the
top as described in the following paragraph.
5.1 Removing the hob
1. Remove all the knobs, the grids, the burner caps and the flame-caps;
2. remove the screws and the nuts A that secure the burner supports;
3. remove
plates B;
4. lift the hob from its seat;
5. replace the burner nozzles in accordance with the reference gas
chart;
6. regulate the primary air as described in paragraph “5.2 Regulation
for LPG”.