Vulcan-Hart ML-044964, ML-044937, ML-044936, ML-044962, 44963 Gas Pressure Check Procedures, Steps

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GAS PRESSURE CHECK PROCEDURES

GAS PRESSURE CHECK PROCEDURES

Steps

1.Connect the manometer to the main gas manifold pipe of the appliance, or in a battery the center unit of the line up. If the pressure reading is taken at the oven burner or anywhere other than the main gas manifold pipe, the pressure drop can be 1" W.C. or greater and the test is invalid.

2.Fire up one burner and take a reading.

3.Fire up all the burners on the appliance and take a reading.

4.Fire up all the gas appliances on that supply line and take a reading.

5.At no time should the pressure drop more than 1/2" W.C.

If the pressure is set at the recommended setting and the pressure drop is slightly under, or 1/2" W.C., the regulator can be adjusted up to the maximum, for example, a 5.5" W.C. for natural and 10.5" W.C. for propane (LP). However, if the pressure drop is greater than 1/2" W.C., it is likely a lack of volume due to too small of a supply line. Check with the gas provider for the proper size gas line.

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Contents SIGNATURE SERIES IMPORTANT FOR YOUR SAFETYSERVICE AND PARTS MANUAL VULCAN-HART COMPANY TABLE OF CONTENTS Snorkel Oven and/or Electric Ignition Oven with KX ThermostatProduct Features and Descriptions INTRODUCTIONService Notes Product Features and Descriptions Cont UNCRATING/SETUP INSTALLATION REQUIREMENTSInstallation Requirements Cont GAS CONNECTIONSGAS PRESSURE REQUIREMENTS GAS PRESSURE CHECK PROCEDURES StepsVENTILATION REQUIREMENTS PILOT ADJUSTMENTS DIAGRAM #1 DIAGRAM #3DIAGRAM #2 DIAGRAM #4BURNER ADJUSTMENTS DIAGRAM #5BATTERY INSTALLATION DIAGRAM #6 DIAGRAM #7 DIAGRAM #8 THERMOSTATS DIAGRAM #9 DIAGRAM #10CALIBRATION OF THERMOSTATS Standard Oven with FDTO ThermostatSnorkel Oven and/or Electric Ignition Oven with KX Thermostat Griddles with BJWA Thermostat DIAGRAM #11 DIAGRAM #12 BYPASS SCREW CALIBRATION SCREWOVEN ELECTRIC IGNITION SYSTEMS Spark SystemDIAGRAM #13 SIGNATURE OVEN W/SPARK PILOTW/ELECTRIC IGNITION DIAGRAM #14SIGNATURE CONVECTION OVEN DIAGRAM #15 SIGNATURE OVEN W/ELECTRIC IGNITIONVALVE DIAGRAM #16BRASS VALVES DOORS, DOOR SEALS, HINGES AND COUNTERWEIGHTS DIAGRAM #17DIAGRAM #18 DIAGRAM #19BURNER ORIFICE, NATAll sizes are rated for sea level ORIFICE, LPCLEANING PROCEDURES Cleaning Tips Inspection Items SCHEDULED MAINTENANCERecommended Service Frequency Probable Cause TROUBLESHOOTINGProblem Griddle will not heat evenly Product sticking to griddle Probable Cause Gas odor Charbroiler will not heat evenly Repeated component failure Stainless steel turning blue Stainless steel turning brown PARTS Standard BurnersKNOB CONTROL Standard Burner Parts426745-1 Hot Tops/Fry Tops KNOB CONTROL Hot Tops/Fry Tops Parts426745-1 French Top KNOB CONTROL French Top Parts426745-1 Standard Oven Convection OvenOven Parts 788278A 788276PANELControl System Convection Oven Control System Standard Oven Control System Parts List S TYPEBody Parts/Shelves Risers Body Parts/Shelves Risers Parts List 788382A1 788382A2 788382A3 788382ARiser 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