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SERVICE AND PARTS MANUAL FOR
H SERIES
HEAVY DUTY GAS RANGES
FORMERLY 7800 AND SG7800 SERIES
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791
FORM 30555 (2-91)
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SERVICE & PARTS H SERIES IMPORTANT OPERATING, INSTALLING AND SERVICE PERSONNEL Operating information for this equipment has been prepared for use by qualified and/authorized operating personnel. All installation and service on this equipment is to be performed by qualified, certified, licensed and/ authorized installation or service personnel, with the exception of any part marked with a in front of the part number. Service may be obtained by contacting the Factory Service Department, Factor
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H SERIES SERVICE & PARTS SERVICE AND PARTS MANUAL FOR H SERIES GAS RANGES INDEX (Formerly 7800 & SG-7800 Series) PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE DESCRIPTION PAGE DEFINITIONS OF PERSONNEL (OPERATING, INSTALLATION & SERVICE) Inside Front Cover INDEX 3 TROUBLESHOOTING (PROBLEMS AND CAUSES) 4 LIGHTING AND SHUTTING DOWN PILOT BURNERS 5, 6 PILOT BURNER ADJUSTMENTS 7 STANDARD OVEN TEMPERATURE CONTROL RECALIBRATION 8 CONVECTION OVEN TEMPERATURE CONTROL RECALIBRATION 8 AUTOMATIC SHUTOFF PILO
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SERVICE & PARTS H SERIES TROUBLESHOOTING PROBLEM PROBABLE CAUSES OVEN TOO MUCH BOTTOM HEAT INSUFFICIENT HEAT INPUT. OVERACTIVE FLUE. UNEVEN BAKE TOO LOW TEMPERATURE. IMPROPER OPERATION. SIDE BURNING IMPROPER BYPASS SETTING. FLUCTUATING GAS PRESSURE. TOO MUCH TOP HEAT TOO HIGH TEMPERATURE. FAULTY VENTILATION. EXCESSIVE HEAT INPUT. THERMOSTAT NEEDS CALIBRATION. UNEVEN BAKE - SIDE TO SIDE APPLIANCE NOT LEVEL SIDE TO SIDE. OVEN BURNER, BOTTOM OR BAFFLES IMPROPERLY INSTALLED. PULLING TO EDGE OF PAN W
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H SERIES SERVICE & PARTS LIGHTING AND SHUTTING DOWN PILOT BURNERS NOTE: All adjustment procedures associated with pilot GRIDDLE TOPS/HOT TOPS lighting must be performed by an authorized Vulcan-Hart installation or service person. The bypass (minimum 1. Turn main gas supply ON. burner) flame adjustment must be made at the time the appliance is installed. 2. Wait 30 seconds, and using a taper, light the griddle pilot. OPEN TOP BURNERS 3. If pilot fails to light, turn main gas supply OFF. Wait 1. T
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SERVICE & PARTS H SERIES LIGHTING AND SHUTTING DOWN PILOT BURNERS (Cont.) STANDARD OVEN PILOT CONVECTION OVEN PILOT NOTE: Before lighting oven, be sure that range top NOTE: Before lighting oven, be sure that range top sections have been lit. sections have been lit. 1. Open oven door and lift up the pilot lighting hole cover. 1. Connect unit to the main electrical supply line. Open oven door panel and lift up the pilot lighting hole 2. Light oven pilot by depressing red reset button (Fig. 1) cove
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H SERIES SERVICE & PARTS PILOT BURNER ADJUSTMENTS NOTE: All pilot adjustments are to be performed only Pilot Safety Adjustment by certified Vulcan service representatives. With control panel cover removed, light the oven pilot as OPEN TOP BURNER PILOT ADJUSTMENTS explained in the oven lighting instructions. If pilot goes out, increase the pilot safety adjustment until the flame TOOLS: Standard screwdriver. completely engulfs the safety device sensing bulb. The safety adjustment screw is located
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SERVICE & PARTS H SERIES TEMPERATURE CONTROL RECALIBRATION STANDARD OVEN TEMPERATURE CONTROL RECALIBRATION Field recalibration is seldom necessary and should not be resorted to unless experience with cooking results definitely proves that the control is not maintaining the set temperature. To check oven temperatures when recalibrating, use a Robertshaw Test Instrument or a reliable mercury oven thermometer. Fig. 5 1. Place thermocouple of test instrument or thermom- eter in the middle of the ove
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H SERIES SERVICE & PARTS AUTOMATIC SHUTOFF PILOT INSTRUCTIONS CLEANING THERMOSTATICALLY CONTROLLED GRIDDLE RECALIBRATION To clean limiting orifice (Fig. 7), turn gas supply to unit OFF. Disconnect pilot tubing at the pilot burner body. The Field recalibration is seldom necessary and should not orifice is then accessible at the body end of the pilot be resorted to unless cooking results definitely prove that burner and can be removed for cleaning. Clean spud, griddle surface temperature and therm
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SERVICE & PARTS H SERIES REPLACEMENT PARTS LIST WARNING ALL SERVICE PERSONNEL WHEN SERVICING THIS EQUIPMENT, USE ONLY CERTIFIED CONTROLS DUPLICATING THOSE ORIGINALLY SUPPLIED ON THIS EQUIPMENT BY VULCAN-HART COMPANY. DO NOT SUBSTITUTE COMPONENTS WITH DIFFERENT MODEL NUMBERS. DO NOT SUBSTITUTE COMPONENTS WITH DIFFERENT MANUFACTURING NAMES. DO NOT SUBSTITUTE COMPONENTS WITH REBUILT CONTROLS WITHOUT AUTHORIZATION FROM VULCAN- HART CORP. ANY UNAUTHORIZED SUBSTITUTION OF CONTROLS AS STATED ABOVE MAY
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H SERIES SERVICE & PARTS REPLACEMENT PARTS LIST H SERIES RANGE REPLACEMENT PARTS LIST ALL UNITS WITH OVENS ITEM NUMBERS REFER TO REPLACEMENT PARTS DRAWING AND PHOTOS OF INSERT B & A Item Std. Oven Conv. Oven Description Remarks Part Numbers Part Numbers (Formerly SG 7800) (Formerly 7800) 1 407798-4 407798-4 Safety Valve 2 407522-1 FDO Thermostat (Oven) N.S 3 407789-1 Oven Valve 411497-F1 Solenoid Valve N.S. 4 409819-G2 Oven Burner 413957-1 Oven Burner N.S. 5 409125-10 409125-10 Oven Pilot Burner
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SERVICE & PARTS H SERIES REPLACEMENT PARTS LIST (Cont.) 29 409433-1 409433-1 Top Aeration Plate H45 30 409432-1 409432-1 Top Grate H45 31 409416-1 409416-1 Burner Venturi (Lower) H45 31.1 409417-1 409417-1 Burner Head (Top) H45 32 402077-2 402077-2 Top Burner Valve H60 33 FP86-44 FP86-44 Elbow H60 34 408379-2 408379-2 Top Burner Valve H45 34.1 408379-1 408379-1 Top Burner Valve H56, H54, H53-72 35 404772-1 404772-1 Top Plate H72 37 410889-G40 410889-G40 Griddle Plate Assembly H60 38 405831-G3 40
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H SERIES SERVICE & PARTS REPLACEMENT PARTS LIST (Cont.) 57 414001-1 Air Director N.S. 58 413990-G1 Fan Cover Assembly N.S. 59 415780-7 Fan N.S. 60 413994-1 Motor N.S. 62 413773-1 413773-1 Top Grate H56, H54, H53-72 63 413787-1 413787-1 Nozzle Extension H56, H54 64 411496-B1 On/Off Switch N.S. 65 411496-E4 Warning Light N.S. 66 405016-1 Supple Cord N.S. 67 415285-G2 415285-G2 Aeration Plate Assembly H54 67.1 415285-G1 415285-G1 Aeration Plate Assembly H56 68 415289-G1 415289-G1 Aeration Plate Ass
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SERVICE & PARTS H SERIES REPLACEMENT PARTS LIST (Cont.) 80 415248-1 415248-1 Pilot Tube, Hot Top H53-72 81 412063-2 412063-2 Top Pilot H54, H53-72 82 414038-1 414038-1 Hot Top Burner H53-72 83 414064-1 414064-1 Rear Burner Support H53-72 84 414282-1 414282-1 Hot Top H53-72 85 414072-1 414072-1 Rear Baffle H53-72 86 414067-G1 414067-G1 Center Support Hanger Assy. H53-72 87 414071-G1 414071-G1 Center Support Assembly H53-72 48.2 413856-5 413856-5 Manifold Cover H53-72 48.3 413856-3 413856-3 Manifo
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H SERIES SERVICE & PARTS REPLACEMENT PARTS LIST (Cont.) PART NO. DESCRIPTION GAS BURNER ORIFICE Drill Size No. H30 VALVES 402601-A44 Valve, Top Burner Adj. Natural Outer 44 (.086) 402601-F56 Valve, Top Burner Fixed Butane Outer 55 (.052) 402601-F55 Valve, Top Burner Fixed Propane Outer 54 (.050) 402601-A48 Valve, Top Burner Adj. Natural Middle 48 (.076) 402601-F59 Valve, Top Burner Fixed Butane Middle 58 (.042) 402601-F57 Valve, Top Burner Fixed Propane Middle 56 (.047) 402601-A53 Valve, Top Bur
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SERVICE & PARTS H SERIES REPLACEMENT PARTS LIST (Cont.) ITEM DESCRIPTION PART NUMBER PART NUMBER STD.OVEN CONV. OVEN (Formally 7800) (Formally SG-7800) A Cover Plate 405817-1 405817-1 B Back Top (H30, H72 Only) (PTD) 409649-1 409649-1 Back Top (H30, H72 Only) (SST) 409649-2 409649-2 B1 Back Top (H45) (PTD) 409650-1 409650-1 Back Top (H45) (SST) 409650-2 409650-2 C Oven Bottom Baffle 405124-5 – D Manifold Cover (H56) (PTD) 413856-1 413856-1 Manifold Cover (H56) (SST) 413856-2 413856-2 E Back Top
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H SERIES SERVICE & PARTS REPLACEMENT PARTS LIST (Cont.) INSERT A – 17 –
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SERVICE & PARTS H SERIES REPLACEMENT PARTS LIST (Cont.) INSERT B – 18 –
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H SERIES SERVICE & PARTS REPLACEMENT PART PHOTOS H54 – 19 –
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SERVICE & PARTS H SERIES REPLACEMENT PART PHOTOS (Cont.) H54 – 20 –
