Thermador PROFESSIONAL PRO GRAND PRD364JDGC Manuel D'installation page 18

The appliance and its individual shut off valve must be
disconnected from the gas supply piping system during any
pressure testing of the system at test pressures in excess
of 1/2 psig (3.5kPa.).
When checking the manifold gas pressure, the inlet
pressure to the regulator should be at least 6.0" W.C. (14.9
mb) for natural gas or 11.0" W.C. (27.4 mb) for propane. Do
not attempt any adjustment of the pressure regulator.
Installer is responsible for ensuring that the installation, gas
connections, and grounding comply with all applicable
codes.
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.).
CAUTION:
CAUTION:
When connecting unit to propane gas, make certain the
propane gas tank is equipped with its own high pressure
regulator in addition to the pressure regulator supplied
with the appliance. The pressure of the gas supplied to
the appliance regulator must not exceed 14" water
column (34.9 mb).
Figure 15: Gas Supply Connection
English 15