Step 5: Gas Requirements And Hookup - Thermador PRO-HARMONY P304 Installation Instructions Manual

Step 5: Gas Requirements and Hookup
Verify the type of gas being used at the installation
site. As shipped from the factory, units are configured
for use with only natural gas or propane (LP) gas.
Make certain the range matches the type of gas
available at this location. These ranges are NOT
convertible between different types of gas.
For installation of the appliance at high altitude, please
consult your local gas company for their recommen-
dation of the correct orifice sizes and any other
necessary adjustments that will provide proper gas
combustion at specified altitudes.
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 appli-
ance regulator must not exceed 14"
(34.9 mb) water column.
Natura_ Gas Requirements:
Inlet Connection:
Supply Pressure:
Manifold Pressure:
1/2" N.P.T. internal
(Minimum 3,14'' dia. flex line.)
6" to 14" water column.
(14.9 to 34.9 mb)
5" water column (12.5 mb)
Inlet Connection:
Supply Pressure:
Manifold Pressure:
Propane Gas Requirements:
1/2" N.P.T. internal
(Minimum 3/4" dia. flex line.)
11" to 14" water column.
(27.4 mb to 34.9 mb)
10" water column (24.9 mb)
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 regu-
lator that has been permanently mounted within
the range body.
• Use 3,/4" flex line to connect between the gas
supply and the appliance manifold pipe, which
exits the upper rear of the appliance. The appli-
ance manifold pipe connection is 1/2" NPT. (See
Photo A.) Use caution to avoid crimping the 3/4"
flex line when making bends. Suggested length of
flex line is 48", however, please check local codes
for your area's requirments before installation.
• The gas supply connections should be made by a
competent technician and in accordance with
local codes or ordinances. In the absence of local
codes, the installation must conform to the National
Fuel Gas Code ANSI Z223.1iNFPA54- current
issue.
• Always use pipe dope or Teflon@tape on the pipe
threads, and be careful not to apply excessive
pressure when tightening the fittings.
• Leak testing of the appliance shall be in accor_
dance 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.
• Do not use a flame of any kind to check for
gas leaks.
Photo A
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.
13
Use 3/4" flex line to connect between the gas
supply and the appliance manifold pipe.