Vulcan-Hart VC6GS Manual de servicio

VC4G & VC6G SERIES FULL SIZECONVECTION OVENSVC4GS ML-126610VC4GD ML-126611VC4GC ML-136494VC6GS ML-126612VC6GD ML-126613VC6GC ML-136495- NOTICE -Th

Fig. 9Fig. 10TEMPERATURE PROBE (VC4GD/6GD) Disconnect theelectrical power to the machine andfollow lockout / tagout procedures.1. Remove the Right Sid

Fig. 115. Remove probe by pushing it through the ovenwall and into the control panel area.Fig. 12NOTE: The hole in the oven cavity wall does not line

6. Reverse procedure to install the replacementburner.NOTE: Ensure that burner positioning bracket (Ushaped end) is inserted into slot at the rear of

FIRST GENERATION UNIT SHOWN (Before April2005)SECOND GENERATION UNIT SHOWN (After April2005 thru February 2015)CURRENT PRODUCTION SHOWN (After Februar

SECOND GENERATION UNIT SHOWN (After April2005 thru February 2015)CURRENT PRODUCTION SHOWN (After February2015)5. Reverse the procedure to install the

Fig. 274. Remove the ignition module board from themounting bracket.5. Reverse the procedure to install the replacementignition module board.SPARK IGN

Fig. 313. Remove screws securing baffle panel andremove the panel.Fig. 324. If replacing:A. Blower Only - Loosen set screws on blowerhub and using a b

12. Reconnect lead wires at the motor, replaceconduit and junction box cover.NOTE: Check data plate on motor for wiringschematic. The motor must rota

NOTE: The door assembly is heavy and will dropdown once the last screw is removed. If removing doorassembly with-out assistance, use caution.5. Lift

Fig. 42C. If replacing the bottom bearing, remove itfrom the door shaft or the lower sill opening.8. Reverse procedure to install door assembly andche

TABLE OF CONTENTSSERVICE UPDATES ... 4SERVICE UPDATES - VC4G / V

Fig. 452. Independent doors:A. Remove the door handle then remove theouter door panel.B. Lift out the inner door panel and windowassembly.NOTE: Left

Fig. 474. Reverse procedure to install the replacementswitch and check for proper adjustment asoutlined under DOOR SWITCH ADJUSTMENT.MECHANICAL KX THE

INTERIOR LIGHTS Disconnect theelectrical power to the machine andfollow lockout / tagout procedures.Lamp1. Remove the racks.2. Unscrew the glass lens

NOTE: The fan must be installed so air is pulled fromthe rear of the oven and blown into the control area.The arrow on the fan body indicates “air fl

SERVICE PROCEDURES AND ADJUSTMENTS Certain procedures in this section require electrical test or measurements whilepower is applied to the machine. Ex

a) If the average temperaturestill differs more than 10°Ffrom the dial setting, adjustthe thermostat calibrationuntil the averagetemperature is within

6. Calculate the differential by subtracting thetemperature indicated when heat lamp goes outfrom temperature indicated when heat lampcomes on.Differe

NOTE: If oven is equipped with "Cook and Hold"option, set to Cook (normal cooking) beforecontinuing.3. Set the temperature control to the m

type. As temperature increases the resistance valuedecreases.1. Remove the Right Side Panel.NOTE: If right side panel is not accessible, thiscomponen

FIRST GENERATION UNIT SHOWN (Before April2005)SECOND GENERATION UNIT SHOWN (After April2005 thru February 2015)5. Remove adjustment screw cap from the

OPERATION ... 35SETUP MODE ...

4. Install hose barb adapter and attach manometertube.5. Turn gas supply to the oven back on.6. Plug the unit in and turn the power switch ON.7. Set t

DOOR SWITCH ADJUSTMENT Disconnect theelectrical power to the machine andfollow lockout / tagout procedures.1. Remove the Top Front Cover.2. Door opera

Fig. 642. Remove the Top Front Cover.3. Loosen the screws that secure the upper doorbearings and related hardware, just enough toallow door movement.F

4. Each oven door should open with a force of 8 to25 pounds when pulled at the handle. Theadjustments must allow the doors to remainclosed during norm

1) Turn set screw inside the catchassembly housing clockwise toincrease tension on catch ball andcounterclockwise to decrease tensionon catch ball.Fig

COMPUTER CONTROL (VC4GC/VC6GC)OperationRefer to the Instructions Manual for specific operatinginstructions.Setup ModeNOTE: Use the setup mode to veri

2. Press the set key then temperature key to enterthe temperature set mode.A. The display will alternate between the term"StPt" (set point)

ELECTRICAL OPERATIONCOMPONENT FUNCTIONPower Switch (S1) ... Determines the mode of operation; ON, OFF, or COOL DOWN.Oven Light Switch (S2)...

SSR1 & SSR2 (VC4GC/6GC) ...When SSR1 is energized by computer control, connects power to blower motor for Hi fanspeed operation in

VC4GS/6GS - Plug, Socket and Components (Standard Controls)VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - ELECTRICAL OPERATIONPage 39 of 74 F2468

SERVICE UPDATESSERVICE UPDATES - VC4G / VC6GMarch 2015Updated Photos Added to the Following DataModules• GAS BURNER• GAS ORIFICE• GAS SOLENOID VALVE•

VC4GD/6GD - Plug, Socket and Components (Standard Controls)VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - ELECTRICAL OPERATIONF24682 Rev. C (0315

VC4GS/6GS, VC4GD/6GD - Plug, Socket and Components (Roast & Hold Option)VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - ELECTRICAL OPERATIONPa

VC4GC/6GC - Plug, Socket and Components (Roast & Hold Standard)VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - ELECTRICAL OPERATIONF24682 Rev.

SEQUENCE OF OPERATIONVC4GS, VC6GS With Roast & Hold Option(Mechanical KX Thermostat)Schematic diagram 5304 will be used to explain theelectrical s

a) Power is connected throughthe function switch (S3)contacts and the convectionfan motor is energized (fanspeed Hi).b. When the convection fan motorr

H. Control thermostat in the OFF position(OPEN).I. High limit switch CLOSED.J. Roast timer (normal cooking) in the OFFposition..K. Roast and Hold time

If a flame is not"sensed" after 7seconds of sparking,the "no ignition" lightcomes back on, 2ndvalve (main) on the gasvalve is de-e

a. Heat relay (R3) contacts (N.O.)close and the heating circuit ispowered.a) Ignition control module isenergized.b) No ignition light (red) comesON, m

3. Power switch (S1) turned ON.A. Component cooling fan energized.B. Power ON light (Amber) comes ON.C. Power to one side of the followingcomponents:

1) Heat light goes out.2) Power removed from heat relay (R3).a. R3 normally open (N.O.) contactsOPEN.a) Power removed from 2ndvalve (main) on the gas

GENERALINTRODUCTION Procedures in this manual will apply to all models unless specified. Pictures and illustrations can be of any modelunless the pict

NOTE: Gas does not flow to the burner until the 2ndvalve (main) is energized.2) With door switch closed, power isapplied to motor speed (Hi/Low) rela

occurs: ROAST & HOLD timer is turned OFF; functionswitch (S3) is turned back to Normal ROAST (normalcooking) or Power switch (S1) is turned to the

B. Power removed from heat relay (R3) andthe contacts open (N.O.).1) Ignition control module de-energized.a. Power removed from 2nd valve(main) on the

VC4GC, VC6GC (Roast & Hold Standard onComputer Model)Schematic diagram 10437 will be used to explain theelectrical sequence of operation for both

3) With the 120VAC output from thecontrol activated and the centrifugalswitch on the convection fan motorclosed, power is applied to the heatrelay coi

5. After the oven temperature drops below 150°F,the heat comes back ON and cycles as needed,to maintain the "Hold" temperature of 150°F.A. C

SCHEMATICSVC4GS, VC6GS Mechanical (KX) ControlsVC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SCHEMATICSF24682 Rev. C (0315) Page 56 of 74

VC4GS, VC6GS Mechanical (KX) Controls, Roast & Hold OptionVC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SCHEMATICSPage 57 of 74 F24682 Rev.

VC4GD, VC6GD Solid State Temperature ControlVC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SCHEMATICSF24682 Rev. C (0315) Page 58 of 74

VC4GD, VC6GD Solid State Temperature Control, Roast & Hold OptionVC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SCHEMATICSPage 59 of 74 F2468

Units after Serial Number Break (VC4GD 481835388,VC6GD 481835406, VC4GD 541077665) NaturalGas - 50,000 BTU input at 5.0 in. W.C.Propane Gas - 44,000 B

VC4GC, VC6GC Computer Control (Roast & Hold Standard)VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SCHEMATICSF24682 Rev. C (0315) Page 60 of

WIRING DIAGRAMSVC4GS, VC6GS Mechanical (KX) ControlsFig. 82VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSPage 61 of 74 F24682 Rev

Fig. 83VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSF24682 Rev. C (0315) Page 62 of 74

VC4GS, VC6GS Mechanical (KX) Controls, Roast & Hold OptionFig. 84VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSPage 63 of 74

Fig. 85VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSF24682 Rev. C (0315) Page 64 of 74

VC4GD, VC6GD Solid State Temperature ControlFig. 86VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSPage 65 of 74 F24682 Rev. C (031

Fig. 87VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSF24682 Rev. C (0315) Page 66 of 74

VC4GD, VC6GD Solid State Temperature Control, Roast & Hold OptionFig. 88VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSPage 67

Fig. 89VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSF24682 Rev. C (0315) Page 68 of 74

VC4GC, VC6GC Computer Control (Roast & Hold Standard)Fig. 90VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSPage 69 of 74 F2468

REMOVAL AND REPLACEMENT OF PARTSCOVERS AND PANELS Disconnect theelectrical power to the machine andfollow lockout / tagout procedures. SHUT OFF THE GA

Fig. 91VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - WIRING DIAGRAMSF24682 Rev. C (0315) Page 70 of 74

TROUBLESHOOTING Certain procedures in this section require electrical test or measurements whilepower is applied to the machine. Exercise extreme caut

SYMPTOMS POSSIBLE CAUSESExcessive or low heat.1. Temperature probe malfunction on modelsHGC5/5X. (Thermostat malfunction on modelsDGC5)2. Temperature

SYMPTOM POSSIBLE CAUSESOven not hot enough.1. Probe malfunction.2. Control range high (rH1) setting to low. SETUPMODE under COMPUTER CONTROL (VC4GD,VC

CODE & PROBLEM PROBABLE CAUSE SOLUTIONEr11 - Open sensor error Open sensor• Check the InP1 setupparameter. Verify it matchesyour sensor.• Check se

CONTROL PANEL COMPONENTS Disconnect theelectrical power to the machine andfollow lockout / tagout procedures.Removable Components Procedure1. Remove t

Fig. 7COMPONENT PANELCOMPONENTS Disconnect theelectrical power to the machine andfollow lockout / tagout procedures.Removable Components Procedure1. R