Step 5: Gas Requirements And Hookup - Thermador PRD304GHC Installation Manual

Step 5: Gas Requirements and
Hookup
Verify the type of gas being used at the installation site.
The appliance is shipped from the factory for use with
natural gas. It must be converted for use with propane.
A qualified technician or installer must do the
conversion. Make certain the range matches the type of
gas available at this location.
Natural 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.
Propane (LP) Gas Appliances – NOTE: The appliance
must first be converted for use with Propane (LP) Gas
before it can be converted for use at high altitude. A
Propane (LP) Conversion Kit (Service Number 649832 -
PALPKITHC) is required and available for purchase from
Thermador Customer Service. 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 both the Propane
(LP) Conversion Kit and the High Altitude Conversion Kit.
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).
Natural Gas Requirements:
Inlet Connection: 1/2" NPT internal
(Minimum 3/4" dia. flex line)
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: 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)
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:
Gas line must not come in contact with any components
inside back cover of range.
WARNING:
Do not use a flame of any kind to check for gas
leaks.
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