Vulcan-Hart ML-114557, ML-52953, ML-52947, ML-52950 Regulator Check, Adjustment, Installation

REGULATOR CHECK, ADJUSTMENT, INSTALLATION

REGULATOR CHECK

A regulator is installed on each range. When servicing this equipment for possible gas pressure problems, the following visual checks should be made first.

Make sure the regulator has been installed at the rear of the unit with arrow pointing in the horizontal position in the direction of gas flow. The only exception to this rule is if the outlet pressure of the unit has been reset prior to this service call.

Then turn on the range top burners. Observe the burner flames. If you notice the flames fluctuating, perform the following procedures.

NOTE: Gas supply pressure must not be greater than 1/2 psig (14" Water Column). All ranges should be installed utilizing an individual gas line shutoff valve. The range and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 k Pa). In addition, the appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valves during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.45 k Pa), as stated by the American National Standards Z83.11 (latest edition). Copies of this standard are available from The American Gas Association, 1515 Wilson Blvd., Arlington, Virginia, 22209.

A leak limiter is supplied with every regulator to limit gas leakage if regulator rupture occurs. Do not obstruct leak limiter on gas pressure regulator as obstruction may cause regulator to malfunction.

TOOLS REQUIRED: Manometer, flat blade screwdriver, 6" adjustable wrench, slip joint plier or pipe wrench.

1. Connect the manometer to the pressure tap provided on the manifold pipe near the regulator (Fig. 23).

Fig. 23

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