Thermador Professional PRO-GRAND PRG30 Manuel D'installation page 14

Propane Gas Requirements:
Inlet Connection: 3/4" NPT external, 1/2" NPT internal
(minimum 3/4" dia. flex line.)
Supply Pressure: 11" min. to 14"max. water column (27.4
mb to 34.9 mb)
Manifold Pressure: 10" water column (24.9 mb)
WARNING:
Gas line must not come in contact with any
components inside back cover of range. Run
gas line in channel in back of range.
Hook Up
• A manual gas shut-off valve must be installed external
to the appliance, in a location accessible from the front,
for the purpose of shutting off the gas supply. The
supply line must not interfere with the back of the unit.
Make sure the gas supply is turned off at the manual
shut-off valve before connecting the appliance.
• The range is supplied with its own pressure regulator
that has been permanently mounted within the range
body.
• Use 3/4" flex line to connect between the gas supply
and the appliance inlet pipe, which exits the upper rear
of the appliance. The appliance pipe connection has a
3/4" NPT external thread and a 1/2" NPT internal
thread. (See Figure 8.) Use caution to avoid crimping
the 3/4" flex line when making bends.
• The gas supply connections shall be made by a
competent technician and in accordance with local
codes or ordinances. In the absence of a local code,
the installation must conform to the National Fuel Gas
Code ANSI Z223.1/NFPA54- current issue.
• Always use pipe sealing compound or Teflon
the pipe threads, and be careful not to apply excessive
force when tightening the fittings.
• Leak testing of the appliance shall be in accordance
with the following instructions.
• Turn on gas and check supply line connections for
leaks using a soap and water solution.
• Bubbles forming indicate a gas leak. Repair all
leaks immediately after finding them.
WARNING:
Do not use a flame of any kind to check for
gas leaks.
English 12
®
tape on
Gas Inlet
Connection
Figure 8: : Appliance Manifold Pipe Connection
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.).
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" (14.9 mb) W.C. for natural gas or 11.0"
(27.4 mb) for propane.
Do not attempt any adjustment of the pressure
regulator.
Channel
Recess in
Back Panel,
for 3/4" Gas
Line.