Step 5: Gas Requirements And Hookup - Thermador PROFESSIONAL PRO HARMONY PRG304GH Installation 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.
Natural Gas and Propane (LP) Gas Appliances – For
installation of the appliance above 2000 ft (610 m), a High
Altitude Conversion Kit (Service Number 619199) is
available for purchase from Thermador Customer Service.
It is required that a Certified Professional install the High
Altitude Conversion Kit.
Natural Gas Requirements:
Inlet Connection: ½" (
[Minimum ¾" (
Supply Pressure: 6" min. to 14" max. water column.
(14.9 to 34.9 mb)
Manifold Pressure: 5" water column (12.5 mb)
Propane Gas Requirements:
Inlet Connection: ½" (
[Min. 3/4" (
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.
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).
) NPT internal
13 mm
) dia. flex line]
19mm
) NPT internal
13mm
) dia. flex line]
19mm
CAUTION:
Hook Up
The gas supply connections shall 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 Z223.1/
NFPA54- current issue.
1. 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.
2. Use a ¾" (19 mm) flex line to connect between the gas
supply and the appliance gas inlet. The gas supply line
connection is located at the lower right portion of all
range models (see Figure 10). The appliance gas inlet
connection is ½" (12.7 mm) NPT.
• Use caution to avoid crimping the ¾" (19 mm) flex
line when making bends. Suggested length of flex
line is 48" (1219 mm); however, please check local
codes for your area's requirements before
installation.
3. Always use pipe sealing compound or Teflon
the pipe threads, and be careful not to apply excessive
pressure when tightening the fittings.
4. 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.
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:
English 13
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