Vulcan-Hart VCG10H ML-126836, VCG10F ML-126837, VCG20H ML-126838 Gas Input, Gas Connection

GAS INPUT

Model	Gas Type		Burner Input Rating		Gas Pressure
		Oven	Steam Generator	Total	Convection	Steam
VCG10H	Natural	67,000 BTU/Hr	40,000 BTU/Hr	107,000 BTU/Hr	3.5" W.C.	3.5" W.C.
	Propane	69,000 BTU/Hr	40,000 BTU/Hr	109,000 BTU/Hr	10.0" W.C.	10.0" W.C.
VCG10F	Natural	85,000 BTU/Hr	45,000 BTU/Hr	130,000 BTU/Hr	3.5" W.C.	3.5" W.C.
	Propane	85,000 BTU/Hr	45,000 BTU/Hr	130,000 BTU/Hr	10.0" W.C.	10.0" W.C.
VCG20H	Natural	70,000 BTU/Hr	58,000 BTU/Hr	128,000 BTU/Hr	3.5" W.C.	3.5" W.C.
	Propane	70,000 BTU/Hr	58,000 BTU/Hr	128,000 BTU/Hr	8.0" W.C.	10.0" W.C.

GAS CONNECTION

All gas supply connections and any pipe joint compound must be resistant to the action of propane gases. The machine connection is 3/4" external thread. A manual valve (supplied) must be installed in the gas supply line ahead of the appliance. Make sure piping is clean and free of obstructions, dirt or pipe joint compound. Recommended gas supply pressures are 7" W.C. (Water Column) for natural gas and 11" W.C. for propane. The gas line must be capable of delivering gas to the oven without excessive pressure drop at the rate specified on the rating plate.

The oven is equipped with a factory preset pressure regulator. Natural gas pressure regulators are preset for 3.5" W.C. for both ovens and steam generators. Propane gas pressure regulators for 10 level ovens are preset for 10" W.C. for both the oven and steam generator. Propane gas pressure regulators for 20 level half depth ovens are preset for 8" W.C. for the oven burner and 10" W.C. for the steam generator. Gas pressure must be checked for correct operating pressure at start-up.

Caster equipped ovens must be installed with a connector that complies with the Standard for Connectors for Movable Gas Appliances, ANSI-Z21.69 (latest edition) [in Canada, CAN/CGA-6.16, latest edition] and a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use with Gas Fuel, ANSI-Z21.41 (latest edition) [in Canada, CAN 1-6.9, latest edition]. A gas line strain relief must be provided to limit the movement of the oven without depending on the connector and the quick-disconnect device or its associated piping to limit oven movement. Attach the strain relief to the rear of the oven at the location provided. If it is necessary to disconnect the restraint during service or maintenance, first turn off the gas supply. Reconnect the restraint before returning the oven to its original installed location and turning the gas supply on.

WARNING: PRIOR TO LIGHTING, CHECK ALL JOINTS IN THE GAS SUPPLY LINE FOR LEAKS. USE SOAP AND WATER SOLUTION. DO NOT USE AN OPEN FLAME.

The convection burner and the steam generator burner are ignited automatically by electric igniters; there are no pilot lights. See Start-Up Procedure, page 9.

Keep the appliance area free and clear from all combustible substances. Do not obstruct the flow of combustion and ventilation air. Make sure there is an adequate supply of air in the room to allow for combustion at the burners and exhaust by the vent hood system.

Testing the Gas Supply Piping System

When test pressures exceed 1/2 psig (3.45 kPa), the oven and its individual shutoff valve must be disconnected from the gas supply piping system.

When test pressures are 1/2 psig (3.45 kPa) or less, the oven must be isolated from the gas supply piping system by closing its individual shutoff valve.

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