Vulcan-Hart VCE20F 126173, VCE20H 126172, VCE10H 126178 Steam Pre-Heat, Steam Regulation

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ELECTRIC COMBI OVEN - ELECTRICAL OPERATION

On 20 level machines (half and full size) the heating mode regulation is the same but with these additional points to remember:

Top and bottom heating elements operate independently and correspond to the top and bottom cavity temperature probes.

￿Display always shows the lowest temperature.

If the cavity temperature exceeds the set point temperature, the heating elements will not turn on until both cavity temperature probes sense a temperature below the set point.

Steam Pre-Heat

When the oven is turned on and the heating mode (convection or combi) is selected, the steam generator fills with water until the proper level is reached. On the programable oven control, press the Start/Stop key to begin oven heating. On the standard and deluxe manual controls, the water pre- heat begins after the heat selector knob is turned to either convection or combi mode. On initial start up only, after the cavity temperature reaches 1.8°F below set point temperature (convection = 1/4 power) the steam generator pre-heat begins. The steam generator heating elements then turn on for a total time of 1.5 minutes on 6 and 10 levels and 2.5 minutes on 20 level ovens, if they are on at full power only. When the convection heating elements turn back on (at half power) to maintain cavity set point temperature, the steam generator heating elements will also turn on (at half power), for a pre- heat time value that is automatically calculated. No additional heating of the steam generator takes place until either a steam or combi mode selection is made.

Steam Regulation

Before cooking in steam mode, it is recommended that the oven be pre-heated in convection mode at 200°F to bring the oven cavity up to temperature for immediate steam cooking.

Steam Mode - When the oven is turned on and the steam mode is selected, the steam generator fills with water until the proper level is reached. On the programable oven control, press the Start/Stop key to begin steam generator heating. The steam generator heating elements turn on (always at full power) until the actual set point temperature is reached then turn off. If the steam mode is selected after convection or combi mode heating, the steam generator pre-heat is complete and the oven is ready for steam mode cooking.

At this time, if the cavity temperature is lower than the set point, the steam generator heating elements turn back on until reaching the actual set point temperature then turn off. If the cavity temperature is higher than the set point, the steam generator heating elements remain off and the oven will go into cool down mode until reaching the set point temperature. When the cavity temperature falls 1°F or more below set point temperature, the heating elements turn on until the cavity returns to the actual set point temperature then turn off.

Combi Mode - On the programable and deluxe manual controls, the steam generator heating elements operate on a portion of the convection bake time to provide the oven with steam heat. The amount of steam introduced depends on the combi steam factor setting (1-6 LED’s lit) on the control. The default steam factor setting is 5 (1 LED lit). On the standard manual control, a fixed steam factor of 20 is used. When the steam generator elements are on at full power, the convection elements are off. If the convection heating elements are on at half power, the steam generator heat elements can also be on at half power. The toggling of the heating element power allows the current draw of the oven to remain at lower levels. If the oven set point temperature is less than the steam temperature setting (195°F to 212°F), the steam factor is limited to 10 regardless of the number of LED’s lit.

NOTE: The steam temperature setting (boiling point adjustment) for elevation is pre-selected in the configuration mode.

Indicator Lights

Steam

Seconds

Seconds

(on front panel)

Factor

ON

OFF

 

 

 

 

1

5

5

85

 

 

 

 

 

 

10

5

70

 

 

 

 

2

20

5

55

 

 

 

 

 

 

30

5

40

 

 

 

 

￿￿￿￿￿￿

40

5

25

 

 

 

 

 

50

5

10

 

 

 

 

NOTES: 1. Default on Programmable and Deluxe manual controls.

2. Default on Standard manual control and is non- adjustable.

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Contents VCE10F Shown on Stand ModelmlTable of Contents Electric Combi Ovens Specifications Operation Cleaning Stacking KIT InstructionsIntroduction 208V 240V 480V ElectricalOven Controls Lubrication Water ConditioningTools Side Panels Rack GUIDE/FILTER/EXHAUST AssemblyElectric Combi Oven Removal and Replacement of Parts Covers and PanelsCovers and Panels Oven Temperature ProbeRear Panel Control PanelProgramable Oven Control Relay Board Manual Oven ControlsRemoval Blower and MotorBlower Motor Shaft Seal InstallationBlower Motor Shaft Seal Heating ElementsSteam Generator Thermal FusesVent Motor Steam Generator Drain Vent Damper Assembly PumpShaft Extension Sealing WasherLevel Shown Steam Generator TankOven Door DisassemblyDoor Lamp Oven Door Hinges Door Locking Mechanism Door Magnetic Reed SwitchReplacement Door SealOven Cavity Seal Service Procedures and AdjustmentsContactors Power Supply Board TransformerOven Cavity Drain To Perform Electric Combi Ovens Service Procedures and AdjustmentsDiagnostic Test Mode Programable Control Code Relay Component Configuration Mode Manual ControlsElectric Combi Ovens Service Procedures and Adjustments OFF Diagnostic Test Mode Manual ControlsCode Relay Component Test Condition Service Error LightsOven Door Adjustment Electric Combi Ovens Service Procedures and Adjustments Programable Control Configuration Mode Buzzer Adjustment Programable ControlBuzzer Adjustment Manual Controls Configuration ModeClean Cycle Mode Steam Generator Deliming Tank Amount Model Volume Scalekleen Added To Feeder Bowl Battery Test Battery Backup Programable ControlTWO Piece Configuration Shown Battery ReplacementElectric Combi Oven Electrical Operation Component Function3TF Thermal Fuse 1T Power Supply Board TransformerHigh Limit Thermostats 1TF & 2TF Thermal FusesKM6 6CON KM5 5CONKM7 7CON Component Location Electric Combi Oven Electrical Operation Sequence of Operation Heating Mode and Cavity Fan SpeedsHeating Regulation Steam Regulation Steam Pre-HeatWater Injection Humidifier Cool Down Mode Manual ControlsConvection Mode Powering ControlSequence of Operation Steam ModeTime Method Combi ModeDelta T Method Temperature Probe MethodManual Oven Controls Programed Cooking Operation Powering DownConvection Mode Steam Regulation Temperature Probe Method Deluxe Manual Control only Powering Down Wiring Diagrams Electric Combi Oven Electrical Operation Level Electric Combi Oven Electrical Operation Level Electric Combi Oven Electrical Operation Electric Heater Circuits Electric Combi Oven Electrical Operation Electric Combi Oven Electrical Operation Electric Combi Ovens Troubleshooting TroubleshootingOperation Proceduresand AdjustmentsIncorrect temperature probe in use. Ensure Adjustments Configuration Mode ProgramableProcedures and Adjustments Symptom Possible Causes Replacement of Parts

VCE10F 126179, VCE20F 126173, VCE6H 126177, VCE10H 126178, VCE20H 126172 specifications

The Vulcan-Hart VCE series consists of several efficient and powerful cooking equipment models, including the VCE20H 126172, VCE10H 126178, VCE6H 126177, VCE20F 126173, and VCE10F 126179. These models are designed to meet the rigorous demands of commercial kitchens and food service operations.

The VCE20H 126172 is a versatile convection oven that offers a spacious cooking capacity, making it ideal for establishments with high-volume cooking needs. Its dual fan system ensures even heat distribution, which results in perfectly cooked dishes every time. This model features a digital control panel that allows for precise temperature adjustments and programmable cooking settings, enhancing overall operational efficiency.

Similarly, the VCE10H 126178 is a compact yet powerful option that accommodates smaller kitchens while still delivering outstanding performance. Its energy-efficient design minimizes power consumption without sacrificing output. The stainless steel construction ensures durability and easy maintenance, making it a reliable choice for busy culinary environments.

The VCE6H 126177 model is another compact oven designed for limited spaces while providing exceptional cooking capabilities. With its robust heating elements and efficient airflow system, it excels in baking and roasting tasks. Additionally, it features a user-friendly interface that simplifies the cooking process, enabling staff to focus on food quality and service speed.

The VCE20F 126173 stands out with its innovative technology, integrating a focused heating system that enhances cooking consistency and reduces cooking times. Ideal for frying, roasting, and baking, this model incorporates advanced safety features like automatic shut-off and temperature monitoring, ensuring a safe cooking environment.

Lastly, the VCE10F 126179 is perfect for establishments seeking a combination of performance and versatility. This model offers various cooking modes, allowing chefs to experiment with different techniques seamlessly. Its compact size makes it a great fit in kitchens with limited space, while the commercial-grade specifications guarantee long-lasting operation.

In conclusion, the Vulcan-Hart VCE series, featuring models like the VCE20H, VCE10H, VCE6H, VCE20F, and VCE10F, encompasses a range of options suitable for diverse commercial cooking needs. Each model is built with advanced technologies, emphasizing efficiency, safety, and durability, making them ideal choices for any professional kitchen. The carefully designed features of these ovens not only enhance cooking quality but also improve workflow, making them essential kitchen tools for culinary excellence.
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