Thermador PRG486JDG Installation Manual - Page 16

Step 6: 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. 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 a local code, the installation must conform to the National Fuel Gas Code ANSI Z223.1/ NFPA54- current issue. For installation of the appliance at high altitude, please consult your local gas company for their recommendation 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 appliance regulator must not exceed 14" water column (34.9 mb). 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 inside the range. NATURAL GAS REQUIREMENTS: Inlet Connection: 3/4" (19mm) NPT external 1/2" (12.7mm) 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: 3/4" (19mm) NPT external 1/2" (12.7mm) NPT internal (Minimum 3/4" dia. flex line.) Gas Line Connection Supply Pressure: Manifold Pressure: 11" min. to 14" max. water column. (27.4 mb to 34.9 mb) 10" water column (24.9 mb) WARNING: Do not remove the back cover of the range. It is for an authorized servicer access only. FIGURE 10: MANIFOLD GAS LINE CONNECTION • Use 3/4" (19mm) flex line to connect between the gas supply and the appliance inlet pipe, which exits at the rear, lower right of the appliance. The appliance pipe connection has a 3/4" (19mm) NPT external thread and a 1/2" (13mm) NPT internal thread (see Figure 10). Use caution to avoid crimping the 3/4" (19mm) flex line when making bends. Suggested length of the flex line is 48" (1219mm); however, check local codes for requirements before installation. English 14