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FIRST GENERATION UNIT SHOWN (Before April

2005)

SECOND GENERATION UNIT SHOWN (After April

2005 thru February 2015)

CURRENT PRODUCTION SHOWN (After February

2015)

4.

Loosen the bolts securing the valve and bracket
assembly then remove the screws securing the
valve to the bracket.

FIRST GENERATION UNIT SHOWN (Before April

2005)

VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - REMOVAL AND REPLACEMENT OF PARTS

Page 13 of 75

F24682 Rev. D (1016)

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Содержание ML-126610

Страница 1: ...cessary 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 T...

Страница 2: ...BLY INDEPENDENT DOORS 19 ROLLER LATCH ASSEMBLY INDEPENDENT DOORS 19 DOOR WINDOW 19 DOOR SWITCH 20 MECHANICAL KX THERMOSTAT VC4GS 6GS 21 HIGH LIMIT THERMOSTAT 21 INTERIOR LIGHTS 22 COOLING FAN 22 SERVI...

Страница 3: ...MECHANICAL KX CONTROLS 57 VC4GS VC6GS MECHANICAL KX CONTROLS ROAST HOLD OPTION 58 VC4GD VC6GD SOLID STATE TEMPERATURE CONTROL 59 VC4GD VC6GD SOLID STATE TEMPERATURE CONTROL ROAST HOLD OPTION 60 VC4GC...

Страница 4: ...s Added to the Following Data Modules GAS BURNER GAS ORIFICE GAS SOLENOID VALVE ROLLER LATCH ASSEMBLY INDEPENDENT DOORS HIGH LIMIT THERMOSTAT GAS PRESSURE ADJUSTMENT units up to February 2015 Added Ne...

Страница 5: ...Hour Digital Built in Built in Optional VC6GC 30 5 Computer Independent 1 3 24 Hour Digital Built in Built in Optional 1 Simultaneous doors are optional with or w o window 2 Stainless steel doors w o...

Страница 6: ...Recommend in W C 8 0 Min 6 0 for Units after Serial Number Break VC4GD 481835388 VC6GD 481835406 VC4GD 541077665 Propane Recommend in W C 11 0 Min 11 0 All Propane Units Maximum 14 0 in W C Nat or Pro...

Страница 7: ...right side which secure the control panel then pull the panel away from the oven Fig 3 NOTE If the oven has a mechanical KX type thermostat it must be removed from the control panel first before remov...

Страница 8: ...movable Components Procedure 1 Remove the Control Panel 2 Remove the component being replaced 3 Reverse the procedure to install the replacement component then check oven for proper operation Fig 5 Fi...

Страница 9: ...ght side panel is not accessible this component can be serviced by removing the Control Panel 2 Disconnect the wire leads to the component being replaced 3 Remove the component 4 Reverse the procedure...

Страница 10: ...el NOTE If right side panel is not accessible this component can be serviced by removing the Control Panel 2 Disconnect the probe leads from the solid state temperature control 3 Remove the racks and...

Страница 11: ...ROL CALIBRATION VC4GD 6GD GAS BURNER Disconnect the electrical power to the machine and follow lockout tagout procedures SHUT OFF THE GAS BEFORE SERVICING THE UNIT 1 Remove the BOTTOM FRONT COVER 2 Di...

Страница 12: ...over 2 Remove the bolts securing the gas manifold to the oven and place the manifold to the side Fig 18 3 Remove the gas orifice from the spud on the manifold and replace with the correct orifice for...

Страница 13: ...RRENT PRODUCTION SHOWN After February 2015 4 Loosen the bolts securing the valve and bracket assembly then remove the screws securing the valve to the bracket FIRST GENERATION UNIT SHOWN Before April...

Страница 14: ...E ADJUSTMENT for units before February 2015 and GAS VALVE PRESSURE CHECK for units after February 2015 and check for proper operation IGNITION CONTROL MODULE Disconnect the electrical power to the mac...

Страница 15: ...sembly Fig 28 3 Reverse the procedure to install the assembly and check for proper operation NOTE Check to ensure the spark gap distance is approximately 1 8 If the gap appears to be excessive or poor...

Страница 16: ...ounting plate to the rear wall Fig 34 7 Place a piece of cardboard on the bottom of the oven cavity to protect its surface from any damage during motor assembly removal 8 Pull the motor assembly into...

Страница 17: ...ear wall at the lower right hand corner 18 Remove cardboard from the bottom of the oven cavity 19 Install rack guides and racks 20 Check oven for proper operation OVEN DOORS SIMULTANEOUS DOORS Disconn...

Страница 18: ...ustment as outlined under DOOR CHAIN ADJUSTMENT SIMULTANEOUS DOORS OVEN DOORS AND BEARINGS INDEPENDENT DOORS Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remov...

Страница 19: ...door catch assembly Fig 43 3 Reverse procedure to install 4 Adjust the ball catch as outlined under DOOR CATCH BALL ADJUSTMENT INDEPENDENT DOORS ROLLER LATCH ASSEMBLY INDEPENDENT DOORS NOTE For units...

Страница 20: ...cing window on the right door remove the screws along the inside edge if applicable of the door then remove the inner door panel and window assembly 4 Remove the screws securing the window tabs to the...

Страница 21: ...e oven cavity wall does not line up straight with the oven cavity outer shell therefore the probe must be removed at an angle 5 Reverse the procedure to install 6 Adjust the thermostat as outlined und...

Страница 22: ...Insert the socket into the hole in the oven and push until the socket is held in place by the retaining tabs 7 Install the light bulb and lens 8 Check for proper operation COOLING FAN Disconnect the e...

Страница 23: ...ow direction and should be pointing toward the controls NOTE Ensure fan is seated squarely against the air tube and the oven bottom NOTE The air deflector should be angled upwards at approximately 30...

Страница 24: ...VC4GD 6GD b If the probe is functioning properly then temperature control is malfunctioning a Install a replacement temperature control and check calibration 7 Calculate the average temperature by add...

Страница 25: ...perature by adding the temperature indicated when the lamp goes out to the temperature indicated when the lamp comes on and dividing this answer by 2 Temp lamp off Temp lamp on 2 Average Temp Example...

Страница 26: ...the thermostat knob 2 Hold the thermostat shaft and turn the inner set screw clockwise to decrease temperature or counterclockwise to increase temperature turn 35 F 8 Replace the knob and repeat Step...

Страница 27: ...the internal relay is not present problem is not with the temperature control See TROUBLESHOOTING 2 If output voltage from the internal relay is correct proceed to step 8 If output voltage from the i...

Страница 28: ...roper operation 5 Reverse procedure to install TEMP F OHMS TEMP F OHMS 77 90 000 360 822 240 4 077 380 656 260 3 016 400 529 280 2 266 425 424 300 1 726 450 334 320 1 332 475 266 340 1 041 Resistance...

Страница 29: ...with the gas on and the burner lit GAS TYPE PRESSURE READING IN W C MANIFOLD LINE RECOMMEND MIN MAX Natural 3 5 7 0 5 14 Propane 10 11 0 11 14 NOTE If the incoming line pressure to the valve is less t...

Страница 30: ...NATURAL GAS If the incoming pressure to the valve is between 6 WC and 14 for Natural gas and the manifold pressure is not maintaining 5 WC and the cap 1 Fig 60 is correctly positioned replace the valv...

Страница 31: ...Simultaneous doors The switch actuator should be operated by the switch lever when the right door is from being closed 3 If adjustment is necessary bend the switch actuator to obtain the proper setti...

Страница 32: ...hat the vertical edge of the door is parallel to the vertical door seal If the doors are not positioned in this manner adjust the doors as described Fig 66 2 Remove the Top Front Cover 3 Loosen the sc...

Страница 33: ...if malfunctioning as outlined under ROLLER LATCH ASSEMBLY INDEPENDENT DOORS and adjust as outlined in this procedure 4 Each oven door should open with a force of 8 to 25 pounds when pulled at the han...

Страница 34: ...the handle The adjustment must allow the doors to remain closed during normal operation and allow opening without exertion by the user NOTE The amount of tension on catch ball determines the opening f...

Страница 35: ...o verify that the control is configured to the factory settings which result in the proper operation of the oven If the CAL1 parameter is other than zero determine if it is still needed before resetti...

Страница 36: ...The display will alternate between the term StPt set point and the current oven temperature setting B Press the up or down arrow keys to make the proper selection C Press the set key again to save the...

Страница 37: ...il the cycling temperature is within tolerance B If the above adjustment cannot be obtained replace the computer control and check for proper operation VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SERV...

Страница 38: ...erating when the doors are opened Blower Motor Operates the oven cavity blower convection fan Also an internal centrifugal switch on the motor is utilized to allow the connection of power to the heat...

Страница 39: ...e after 3 attempts it will remain lit until power is reset Temperature Probe Senses the oven temperature for the solid state temperature control or the computer control On VC4GD 6D models converts the...

Страница 40: ...VC4GS 6GS Plug Socket and Components Standard Controls VC4G VC6G SERIES FULL SIZE CONVECTION OVENS ELECTRICAL OPERATION F24682 Rev D 1016 Page 40 of 75...

Страница 41: ...VC4GD 6GD Plug Socket and Components Standard Controls VC4G VC6G SERIES FULL SIZE CONVECTION OVENS ELECTRICAL OPERATION Page 41 of 75 F24682 Rev D 1016...

Страница 42: ...VC4GS 6GS VC4GD 6GD Plug Socket and Components Roast Hold Option VC4G VC6G SERIES FULL SIZE CONVECTION OVENS ELECTRICAL OPERATION F24682 Rev D 1016 Page 42 of 75...

Страница 43: ...VC4GC 6GC Plug Socket and Components Roast Hold Standard VC4G VC6G SERIES FULL SIZE CONVECTION OVENS ELECTRICAL OPERATION Page 43 of 75 F24682 Rev D 1016...

Страница 44: ...normally open N O contacts and hold relay R2 common C B Component cooling fan energized C Power ON light Amber comes ON D Power to one side of the following components Normal ROAST timer terminal 1 R...

Страница 45: ...opened or the power switch S1 is turned to the OFF or COOL DOWN position Timer Cycle Normal Roast Cooking NOTE The ROAST timer normal cooking operates independently of the heating cycle Additional ti...

Страница 46: ...dual solenoid gas valve a 1st valve safety on the gas valve energized NOTE 1st valve safety on the gas valve energized 2 With door switch closed power is connected through a second set of contacts on...

Страница 47: ...NOTE To Roast then Hold the cooked product at a fixed temperature the Roast Hold timer must be used and the function switch S3 must also be set to Roast Hold as indicated under step1 conditions for t...

Страница 48: ...ion switch S3 is changed back to Cook normal cooking or the power switch S1 is turned to the OFF or COOL DOWN position VC4GD VC6GD With Roast Hold Option Solid State Temperature Control Schematic diag...

Страница 49: ...lly open N O side of internal relay contacts terminal 7 on the temperature control board 3 Power is also connected back through a second set of contacts on the power switch S1 to terminal 8 on the tem...

Страница 50: ...fan motor common C transformer primary T1 motor speed Hi Low relay coil R1 hold relay coil R2 and the component cooling fan B Oven properly grounded C Gas supply valve ON D Gas combination control val...

Страница 51: ...iagnostic test for 4 seconds 2nd valve main on the gas valve is energized Gas starts to flow to the burner sparking begins the no ignition light goes out and burner lights Sparking continues for up to...

Страница 52: ...R3 de energize relay R3 contacts open and oven heating stops NOTE This is considered second stage cooking in the ROAST HOLD cycle where the stored heat in the oven continues to cook the product 4 Ove...

Страница 53: ...ed Hi Low relay R1 coil 1 Motor speed Hi Low relay R1 is energized and contacts change state a Power is connected through motor speed Hi Low relay normally open N O contacts through function switch S3...

Страница 54: ...lay 1 SSR1 load side and solid state relay 2 SSR2 load side D Component cooling fan energized E Transformer T1 is energized 1 Power 24VAC to one side of the following components heat relay R1 normally...

Страница 55: ...continue to cycle on the computer control until the doors are opened or power switch S1 is turned to the OFF or COOL DOWN position Temperature and Time Cycle Cooking NOTE The computers internal COOK t...

Страница 56: ...EN D Power switch S1 set to either ON or OFF 2 Power Switch S1 turned to COOL DOWN NOTE With door switch contacts OPEN doors open the convection fan motor will still run and continue to cool the oven...

Страница 57: ...SCHEMATICS VC4GS VC6GS Mechanical KX Controls VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SCHEMATICS Page 57 of 75 F24682 Rev D 1016...

Страница 58: ...VC4GS VC6GS Mechanical KX Controls Roast Hold Option VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SCHEMATICS F24682 Rev D 1016 Page 58 of 75...

Страница 59: ...VC4GD VC6GD Solid State Temperature Control VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SCHEMATICS Page 59 of 75 F24682 Rev D 1016...

Страница 60: ...VC4GD VC6GD Solid State Temperature Control Roast Hold Option VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SCHEMATICS F24682 Rev D 1016 Page 60 of 75...

Страница 61: ...VC4GC VC6GC Computer Control Roast Hold Standard VC4G VC6G SERIES FULL SIZE CONVECTION OVENS SCHEMATICS Page 61 of 75 F24682 Rev D 1016...

Страница 62: ...WIRING DIAGRAMS VC4GS VC6GS Mechanical KX Controls Fig 84 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS F24682 Rev D 1016 Page 62 of 75...

Страница 63: ...Fig 85 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS Page 63 of 75 F24682 Rev D 1016...

Страница 64: ...VC4GS VC6GS Mechanical KX Controls Roast Hold Option Fig 86 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS F24682 Rev D 1016 Page 64 of 75...

Страница 65: ...Fig 87 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS Page 65 of 75 F24682 Rev D 1016...

Страница 66: ...VC4GD VC6GD Solid State Temperature Control Fig 88 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS F24682 Rev D 1016 Page 66 of 75...

Страница 67: ...Fig 89 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS Page 67 of 75 F24682 Rev D 1016...

Страница 68: ...VC4GD VC6GD Solid State Temperature Control Roast Hold Option Fig 90 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS F24682 Rev D 1016 Page 68 of 75...

Страница 69: ...Fig 91 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS Page 69 of 75 F24682 Rev D 1016...

Страница 70: ...VC4GC VC6GC Computer Control Roast Hold Standard Fig 92 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS F24682 Rev D 1016 Page 70 of 75...

Страница 71: ...Fig 93 VC4G VC6G SERIES FULL SIZE CONVECTION OVENS WIRING DIAGRAMS Page 71 of 75 F24682 Rev D 1016...

Страница 72: ...Down position Runs OK in On position 1 Power switch malfunction 2 Interconnecting wiring malfunction Gas does not ignite No spark No Ignition Light ON 1 Shorted electrode on ignitor flame sense 2 Ign...

Страница 73: ...not run 1 Motor inoperable 2 Interconnecting wiring malfunction Uneven Cooking 1 Convection Fan motor speed direction 2 Poor combustion A Gas pressure incorrect B Exhaust vent plugged or obstructed C...

Страница 74: ...le power Er02 RAM checksum error Internal RAM malfunction Cycle power Er03 Ambient sensor error Ambient temperature is below 32 F Check ambient temperature at the control Er04 Configuration error Micr...

Страница 75: ...ng the error is resolved the error will clear Er12 Shorted sensor Incorrect sensor type Measuring temperature outside the sensor range Check the InP1 setup parameter Verify it matches your sensor Chec...

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