Vulcan-Hart EV12 Series, Service Manual

Page 1: ...y tools instruments and skills required to perform the procedure Procedures for which you do not have the necessary tools instruments and skills should be performed by a trained Vulcan Service Technician The reproduction transfer sale or other use of this Manual without the express written consent of Vulcan is prohibited This manual has been provided to you by ITW Food Equipment Group LLC ITW FEG ...

Page 2: ...16 GRIDDLE THERMOSTAT CALIBRATION 16 HOT TOP THERMOSTAT CALIBRATION 17 INFINITE SWITCH TEST 208V 240V 18 3 HEAT SWITCH TEST 480V 18 HEATING ELEMENT TEST 19 ELECTRICAL OPERATION 21 COMPONENT FUNCTION 21 COMPONENT LOCATION 21 STANDARD OVEN SEQUENCE OF OPERATION 22 208 240V 22 480V 22 WIRING DIAGRAMS 23 EV12 RANGE TOP 208V 240V 23 EV12 RANGE TOP 480V 24 EV24 RANGE TOPS 208V 240V 25 EV24 STANDARD OVEN...

Page 3: ...such as French Plates Griddles or Hot Tops A second S in the model number indicates an additional range with a standard oven in the configuration double oven EV12 12 wide range section that provides additional range top heating selections of 2 French Plates or 1 Hot Top EV24S 24 wide electric range with available range top selections EV36S 36 wide electric range with available range top selections...

Page 4: ... 3 41 1 46 9 15 2 20 6 23 3 78 8 68 3 EV36S 2HT12G 35 0 55 8 62 5 30 3 48 4 54 1 15 2 24 2 27 1 88 5 76 7 EV36S 36G 35 0 42 5 49 1 30 3 36 8 42 6 15 2 18 4 21 3 73 1 63 3 NOTE 1 FP French Plate 2 per 12 section HT Hot Top 1 per 12 section G Griddle 12 24 or 36 wide and S Standard oven Additional information on the wiring configurations kilowatts and amperage values can be found under WIRING DIAGRA...

Page 5: ...d to relieve spring tension on the door hinge during door removal and installation Loctite 246 for door handle screws A non permanent type sealer preferably fast drying such as nail polish or equivalent for sealing thermostat adjustment screw If using Loctite 242 it begins to set in approximately 10 minutes and fully cures in 24 hours according to manufacturer EV Series Electric Ranges GENERAL Pag...

Page 6: ... CONTROL PANEL Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove plug from the access hole in the oven control panel Fig 2 2 Remove screw securing oven control panel to frame 3 Pull the oven control panel outward at the top and lift to remove from frame 4 Note wire locations and disconnect from the infinite switch 1 Fig 3 thermostat 2 Fig 3 and oven light...

Page 7: ... Remove screws 2 Fig 5 securing backsplash 1 Fig 5 to frame Fig 5 2 Lift backsplash to disengage the support tabs from mounting slots in frame Place backsplash to the side until ready to install 3 Open FRONT CONTROL PANEL 4 Remove range top as described below Fig 6 A French Plate 1 Fig 6 Remove screws securing French Plate Fig 7 to frame B Hot Top 2 Fig 6 Remove screws securing bull nose 1 Fig 8 t...

Page 8: ... notch on swivel hinge must release from bottom edge of the door hinge stop to remove door As needed lift up on the swivel hinges using forefinger to aid in releasing C The spring loaded hinge must release from the roller inside the slot on door hinge stop to remove door 7 If replacing door or spring loaded hinge position the door face down Press down on hinge enough to relieve spring force then r...

Page 9: ...connect lead wires Otherwise access is available through the oven cavity as outlined in procedure 1 Remove oven racks 2 Loosen element mounting brackets 1 Fig 12 3 Remove element mounting screws 2 Fig 12 Fig 12 4 Remove element from brackets NOTE Some brackets may need to be removed if turning them will not completely free the element 5 If removing element through oven cavity disconnect lead wires...

Page 10: ...rce 10 Check range for proper operation FRENCH PLATE Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove RANGE TOPS 2 Remove electrical connections noting their locations 1 Fig 16 Fig 16 3 Support the French Plate 1 Fig 17 A Remove the nut spring washer and locking bracket 2 3 4 Fig 17 Fig 17 4 Remove French Plate from range top 5 Reverse procedure to insta...

Page 11: ... hooks inward slightly 1 Fig 20 then remove electrical connections Fig 20 6 Remove Hot Top 7 Reverse procedure to install 8 Check range for proper operation GRIDDLE HEATING ELEMENT Disconnect the electrical power to the machine and follow lockout tagout procedures NOTE 24 wide griddle shown 1 Remove RANGE TOPS 2 Remove thermostat bulb from the angle iron weldment 1 Fig 21 on the bottom of griddle ...

Page 12: ... is the preferred method for tightening the griddle element clamp mounting nuts However if a torque wrench is not available tighten all griddle element clamp mounting nuts finger tight then 1 2 additional turn with a wrench 10 Check range for proper operation OVEN THERMOSTAT Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove thermostat knob 2 Remove thermo...

Page 13: ...rom thermostat noting their locations Fig 27 5 Access the underside of RANGE TOPS The picture below shows the thermostat bulb and clamp for a Hot Top A To access the thermostat bulb and clamp for a griddle refer to GRIDDLE HEATING ELEMENT 6 Remove mounting nuts 1 Fig 28 from thermostat bulb clamp 2 Fig 28 Fig 28 7 Remove thermostat bulb from clamp 8 Remove wire tie securing the insulating sheath a...

Page 14: ...tch for a French Plate Fig 30 NOTE Infinite switches are shown 4 If replacing switch for the top oven element remove OVEN CONTROL PANEL 5 Remove wire connections from switch being replaced Note wire locations 6 Remove switch from control panel 7 Reverse procedure to install 8 Check range for proper operation INDICATOR LIGHTS Disconnect the electrical power to the machine and follow lockout tagout ...

Page 15: ...e tabs at both ends of the indicator light and push through the control panel 4 Reverse procedure to install 5 Check range for proper operation EV Series Electric Ranges REMOVAL AND REPLACEMENT OF PARTS Page 15 of 33 F45586 0716 ...

Page 16: ...t stem 1 Fig 34 until it reaches the calibration screw Fig 34 3 Turn adjustment screw clockwise to increase and counterclockwise to decrease temperature NOTE A 1 4 turn equals 35 F change 7 Replace knob and repeat steps 4 to 6 until average temperature is within 25 F of set temperature 8 Reseal adjustment screw to prevent movement 9 If thermostat cannot be calibrated replace thermostat as outlined...

Page 17: ...thermostat as outlined under GRIDDLE AND HOT TOP THERMOSTATS HOT TOP THERMOSTAT CALIBRATION 1 Clean temperature test area surface in the center of the Hot Top then place temperature tester surface mount probe at that location 2 Set thermostat to 350 F 3 Allow the thermostat to cycle three times 4 Note the tester reading when the indicator light turns ON and OFF 5 Add these two temperatures togethe...

Page 18: ... Setting on Time Seconds on Seconds off Hi 100 ALL 0 Med 48 15 15 Low 37 8 14 Knob Setting on Time Seconds on Seconds off Med Low 28 7 24 Very Low 7 3 33 6 If the percentage is not correct replace the switch as outlined under 3 HEAT SWITCH INFINITE SWITCH 3 HEAT SWITCH TEST 480V Certain procedures in this section require electrical test or measurements while power is applied to the machine Exercis...

Page 19: ...ssible cause If voltage is correct check current draw amps through the heating element lead wires NOTE Checking current draw is preferred over a resistance check when a clamp on type amp meter is available B If current draw is correct then heating element is functioning properly See HEATING ELEMENT TABLE for proper values If current draw is not correct turn temperature control OFF and disconnect t...

Page 20: ... 2 46 1 Standard Oven Bottom 3 75 15 6 15 4 Hot Top 5 00 20 8 11 5 French Plate 2 00 8 3 28 8 Griddle 3 40 14 2 16 9 480 Standard Oven Top 1 25 2 6 184 3 Standard Oven Bottom 3 75 7 8 61 4 Hot Top 5 00 10 4 46 1 French Plate 2 00 4 2 115 2 Griddle 3 40 7 1 67 8 NOTE 1 Values in the table are nominal Tolerance is 5 10 2 Voltage values are 60Hz 3 Resistance values ohms are 77 F EV Series Electric Ra...

Page 21: ...ch setting provides a range of ON time from 7 to 100 The switch settings are HI MED LO MED LO and VERY LO On 480V units the top oven element along with the bottom oven element are both controlled by the oven thermostat Indicator Lights Red Turns ON when power is being applied to heating elements for the oven griddle or Hot Top COMPONENT LOCATION EV36 6FP French Plates Shown ITEM NO DESCRIPTION 1 R...

Page 22: ...mes and indicator light turns ON 6 Steps 4 and 5 cycle until the thermostat is turned OFF or power is removed from the range 480V 1 Conditions A Range connected to supply voltage B Power at range terminal block building circuit breakers ON C Oven thermostat OFF controls top bottom elements for browning heating D Oven at room temperature 2 Oven thermostat set to desired temperature A Indicator ligh...

Page 23: ...WIRING DIAGRAMS EV12 RANGE TOP 208V 240V EV Series Electric Ranges WIRING DIAGRAMS Page 23 of 33 F45586 0716 ...

Page 24: ...EV12 RANGE TOP 480V EV Series Electric Ranges WIRING DIAGRAMS F45586 0716 Page 24 of 33 ...

Page 25: ...EV24 RANGE TOPS 208V 240V EV Series Electric Ranges WIRING DIAGRAMS Page 25 of 33 F45586 0716 ...

Page 26: ...EV24 STANDARD OVEN 208V 240V EV Series Electric Ranges WIRING DIAGRAMS F45586 0716 Page 26 of 33 ...

Page 27: ...EV36 EV60 RANGE TOPS 208V 240V EV Series Electric Ranges WIRING DIAGRAMS Page 27 of 33 F45586 0716 ...

Page 28: ...EV36 EV60 STANDARD OVEN 208V 240V EV Series Electric Ranges WIRING DIAGRAMS F45586 0716 Page 28 of 33 ...

Page 29: ...EV24 RANGE TOPS 480V EV Series Electric Ranges WIRING DIAGRAMS Page 29 of 33 F45586 0716 ...

Page 30: ...EV24 STANDARD OVEN 480V EV Series Electric Ranges WIRING DIAGRAMS F45586 0716 Page 30 of 33 ...

Page 31: ...EV36 RANGE TOPS 480V EV Series Electric Ranges WIRING DIAGRAMS Page 31 of 33 F45586 0716 ...

Page 32: ...EV36 STANDARD OVEN 480V EV Series Electric Ranges WIRING DIAGRAMS F45586 0716 Page 32 of 33 ...

Page 33: ...ombination of French Plates griddle or Hot Tops SYMPTOM POSSIBLE CAUSES Range tops do not heat 1 No power to range circuit breaker open 2 Range wiring malfunction 3 Thermostat malfunction griddle Hot Top 4 Infinite switch malfunction French Plates 208 240V 5 3 heat switch malfunction French Plates 480V 6 Heating element malfunction Griddle or Hot Top thermostat not cycling at set temperature 1 The...