Bosch Hob Installation Instructions Manual page 13

Note:
Selecting the side
for the gas
connection
The hose restraint chain supplied should be used if
the appliance is connected with a hose assembly.
One end of the chain should be attached to the screw
located at the rear of the maintop (above the gas inlet
connection) and the other end should be connected
to the wall fixing hook. See attached supplement.
The hose restraint chain prevents strain on the flexible
hose assembly when the cooker is moved forward.
The chain should be no longer than 80 % length of
fixible hose.
The gas connection can be made on the left or right
side. If necessary, you can change the side of
connection subsequently.
Close the main gas supply.
After changing the gas connection, you must close
the screw fastening (SW22) on the old gas connection
with a blind plug (SW 24) and a seal.
Finally, you must carry out a leak test, see the "Leak
test" section.
If you change the gas connection side:
The chain must be changed from right hand to left
hand side.
See attached supplement Flexible Supply".
13