Vulcan-Hart ML-044938 Gas Connections, Gas Pressure Requirements, Installation Requirements Cont

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Installation Requirements (Cont.)

Installation Requirements (Cont.)

All appliances must be vented to the outside. Depending on local codes, the specifics may vary. Check with local authorities. Fluing occurs because heat rises vertically, which has no force behind it. Any obstruction or disturbance will negatively affect the appliances ability to flue itself. Make up or fresh air should be present low and in the front of the appliance.

Gas connector hoses shall be commercial grade and have the capability of supplying at least 10% more fuel than the maximum BTU consumption of the appliance or line up. Furthermore, gas connector hoses shall be no smaller than 3/4" inside diameter.

When units are mounted on casters, the gas connector hose must comply with the current standard for movable gas appliances. Furthermore, the installation must provide for a restraining cable/chain device to limit the movement of the appliance or line up.

GAS CONNECTIONS

CAUTION: ON ALL GAS SUPPLY CONNECTIONS ANY PIPE JOINT COMPOUND USED MUST BE RESISTANT TO THE PROPERTIES OF PROPANE (LP) GAS.

Before making any gas connections, be sure to check for obstructions or debris in the manifold pipe and union fitting. Once the appliance has been connected and the air has been purged from the system all the fittings and connections must be tested for leaks using a soap solution, or an appropriate gas leak-sensing instrument.

WARNING: DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS.

If a gas leak is detected and cannot be stopped, shut off gas supply to the appliance or line up and contact your local gas provider or an Authorized Servicer.

GAS PRESSURE REQUIREMENTS

Natural gas pressure should be 5" Water Column (W.C.) plus or minus 1/2" W.C.

Propane (LP) gas pressure should be 10" W.C. plus or minus 1/2" W.C.

On units that have infra-red burners such as Salamanders and Cheesemelters, the gas pressure variables are slightly different, plus 1/2" W.C. minus .2" W.C. Example: on natural gas, 4.8" to 5.5" W.C., on propane (LP) 9.8" to 10.5" W.C.

All gas appliances must have a gas pressure regulator installed. In order for the pressure regulator to perform properly, the supply pressure must be greater than the operating pressure. For example, most cities supply 7" to 9" W.C. of natural gas pressure to a building.

Propane (LP) systems should supply 11" to 12" W.C. The appropriate pressure regulator will provide the correct pressure to the unit or line up.

Sometimes even though the gas pressure is correct, the appliance may not be able to function properly because the gas supply piping may be too small and is not able to supply the volume of gas required. It is recommended that the piping be able to supply a minimum of 10% more fuel than the maximum BTU consumption of the appliance or line up.

Because of the size of the Signature manifold (1 1/4") when a 1 1/4" pressure regulator is used, up to three appliances may be connected to one pressure regulator. For example, a battery line up of six units must be connected to two gas pressure regulators. A single appliance can be connected to a 3/4" gas pressure regulator.

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Contents SERVICE AND PARTS MANUAL IMPORTANT FOR YOUR SAFETYSIGNATURE SERIES VULCAN-HART COMPANY Snorkel Oven and/or Electric Ignition Oven with KX Thermostat TABLE OF CONTENTSService Notes INTRODUCTIONProduct Features and Descriptions Product Features and Descriptions Cont INSTALLATION REQUIREMENTS UNCRATING/SETUPGAS PRESSURE REQUIREMENTS GAS CONNECTIONSInstallation Requirements Cont Steps GAS PRESSURE CHECK PROCEDURESVENTILATION REQUIREMENTS DIAGRAM #4 PILOT ADJUSTMENTSDIAGRAM #1 DIAGRAM #3 DIAGRAM #2DIAGRAM #5 BURNER ADJUSTMENTSBATTERY INSTALLATION DIAGRAM #6 DIAGRAM #7 DIAGRAM #8 THERMOSTATS Standard Oven with FDTO Thermostat DIAGRAM #9DIAGRAM #10 CALIBRATION OF THERMOSTATSSnorkel Oven and/or Electric Ignition Oven with KX Thermostat Griddles with BJWA Thermostat BYPASS SCREW CALIBRATION SCREW DIAGRAM #11 DIAGRAM #12Spark System OVEN ELECTRIC IGNITION SYSTEMSSIGNATURE OVEN W/SPARK PILOT DIAGRAM #13SIGNATURE CONVECTION OVEN DIAGRAM #14W/ELECTRIC IGNITION SIGNATURE OVEN W/ELECTRIC IGNITION DIAGRAM #15BRASS VALVES DIAGRAM #16VALVE DIAGRAM #19 DOORS, DOOR SEALS, HINGES AND COUNTERWEIGHTSDIAGRAM #17 DIAGRAM #18ORIFICE, LP BURNERORIFICE, NAT All sizes are rated for sea levelCLEANING PROCEDURES Cleaning Tips Recommended Service Frequency SCHEDULED MAINTENANCEInspection Items Problem TROUBLESHOOTINGProbable Cause Griddle will not heat evenly Product sticking to griddle Problem Gas odor Charbroiler will not heat evenly Repeated component failure Stainless steel turning blue Stainless steel turning brown Standard Burners PARTS426745-1 Standard Burner PartsKNOB CONTROL Hot Tops/Fry Tops 426745-1 Hot Tops/Fry Tops PartsKNOB CONTROL French Top 426745-1 French Top PartsKNOB CONTROL Convection Oven Standard Oven788278A 788276PANEL Oven PartsControl System Convection Oven Control System Standard Oven S TYPE Control System Parts ListBody Parts/Shelves Risers 788382A Body Parts/Shelves Risers Parts List 788382A1 788382A2 788382A3Riser Kit Without Shelf P/N 788266A Riser Kit With Single Shelf P/N 788365A Double Deck Riser Kit Without Shelves P/N 788368A Double Deck Riser Kit With Shelves P/N 788368A FORM 31203 Rev. A March