Thermador PRG304, PRG48, PRDS48, PRG36 Gasrequirementsandhookup, Hook UP, Natural Gas Requirements

STEP 5: GASREQUIREMENTSANDHOOKUP

Verify the type of gas being used at the installation site. As shipped from the factory, all units are configured for use on natural gas. For use with propane gas, the unit must be converted. Field conversion for use with propane must only be done by qualified service personnel. Contact the dealer where the unit was purchased or Thermador (800/735-4328). The field conversion kit for all Professional Gas (PRG series) ranges is Thermador Model PROGASLPKIT. The field conversion kit for all Professional Dual Fuel (PRDS series) ranges is Thermador Model

STARLPKIT.

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" (37mb) water column.

Natural Gas Requirements:

Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia. flex line.)

Supply Pressure: 6" to 14" water column. (14.9 to 37 mb)

Manifold Pressure: 5" water column (12.5 mb)

Propane Gas Requirements:

Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia. flex line.)

Supply Pressure: 11" to 14" water column. (27.4 mb to 37 mb)

Manifold Pressure: 10" water column (24.9 mb)

HOOK UP

•A manual gas shut-off valve must be installed external to the appliance, in an accessible location 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 5/8" flex line to connect between the gas supply and the appliance manifold pipe, which exits the upper left rear of the appliance. The appliance manifold pipe connection is 1/2" NPT. (See Fig. 3a, 3b, or 3c.) Use caution to avoid crimping the 5/8" flex line when making bends.

•The gas supply connections should 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, Current Issue.

•Always use pipe dope or Teflon® tape on the pipe threads, and be careful not to apply excessive pres- sure when tightening the fittings.

•Turn on gas and check supply line connections for leaks using a soap solution. Do not use a flame of any sort to check for leaks.

For Massachusetts Installations:

1.Shut-off valve must be a “T” handle gas cock.

2.Flexible gas connector must not be longer than 36 inches.

3.Not approved for installation in a bed- room or a bathroom unless unit is direct vent.

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.

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