Miele KM 406 Installation Instructions Manual page 17

All cooktops come set for connection to
either natural gas or LP gas. The
adjustment of the included regulator
corresponds with the gas type of the
cooktop. If the appliance is to be
connected to another type of gas than it
is set for, both the regulator and
burners must be converted.
,
^ Unscrew the hexagonal silver cap
located on the top of the regulator.
^ Make sure that the spring stays in
place.
^ Flip over the cap and screw it back in
place.
A stamp should be visible on top of the
cap or at the bottom of the center hole
when converted ("LP" for LPG and "NG"
for Natural gas).
17