Thermador PROFESSIONAL PRO HARMONY PRG304GH Manuel D'installation page 17

Manual gas shut-off valve
CAUTION!
The appliance must be isolated from the gas supply
piping system by closing its individual manual shut-off
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2
psig (3.5kPa.).
English 14
48" Gas Inlet Location 48" Gas Inlet Location 48" Gas Inlet Location
¾" (19 mm) Flex line
or
Adapter
30" & 36" Gas Inlet Location 30" & 36" Gas Inlet Location 30" & 36" Gas Inlet Location
{
¾" (19 mm) external threads
½" (12.7 mm) internal threads
or
Adapter
Figure 9: Gas Supply Connection