Vulcan-Hart VCCG Series Service Manual
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Vulcan-Hart VCCG Series Service Manual

Heavy duty gas griddle
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VCCG36 Shown
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary 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") without charge and remains the property
of ITW FEG, and by accepting this manual you agree that you will
return it to ITW FEG promptly upon its request for such return at
any time in the future.
A product of Vulcan-Hart
SERVICE MANUAL
VCCG Series Heavy Duty Gas
Griddle
VCCG24
VCCG36
VCCG48
VCCG60
VCCG72
- NOTICE -
3600 North Point Blvd Baltimore, MD 21222
F45533 (1014)

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  • Page 1 SERVICE MANUAL VCCG Series Heavy Duty Gas Griddle VCCG24 VCCG36 VCCG48 VCCG60 VCCG72 VCCG36 Shown - NOTICE - This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified.

  • Page 2: Table Of Contents

    VCCG Series Heavy Duty Gas Griddle TABLE OF CONTENTS GENERAL ....................3 INTRODUCTION .

  • Page 3: General

    VCCG Series Heavy Duty Gas Griddle - GENERAL GENERAL INTRODUCTION OPERATION This Service Manual covers specific service Detailed operation instructions are included in the information related to the models listed on the front Installation & Operation Manual sent with each unit.
  • Page 4 VCCG Series Heavy Duty Gas Griddle - GENERAL • VOM with minimum of NFPA-70E CAT III 600V, UL/CSA/TUV listed. Sensitivity of at least 20,000 ohms per volt. Meter leads must also be rated at CAT III 600V. • Temperature tester (K type thermocouple preferred) with surface probe.

  • Page 5: Removal And Replacement Of Parts

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS Disconnect gas supply at griddle. FRONT PANEL Remove all screws from rear of griddle securing the back panel. Disconnect the electrical power to the machine and follow lockout / tagout procedures.

  • Page 6: Temperature Controller

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS Check TEMPERATURE CONTROLLER TEMPERATURE CONTROLLER CALIBRATION. RADIANT BURNER Disconnect the electrical power to the machine and follow lockout / tagout procedures. Disconnect the electrical power to the machine and follow lockout / tagout procedures.

  • Page 7: Thermocouple (Radiant Burner)

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS Fig. 9 Align mounting screw head on the burner air shutter to the slot in heat shield assembly hole and remove burner from heat shield. Fig. 7 10. Reverse procedure to install and check for proper Note thermocouple connections then disconnect operation.

  • Page 8: Installation

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS PILOT (RADIANT BURNER) Disconnect the electrical power to the machine and follow lockout / tagout procedures. Fig. 11 Shut off the gas before servicing the Remove insulating sleeve from thermocouple unit.

  • Page 9: Ignition Module

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS GAS VALVE Disconnect the electrical power to the machine and follow lockout / tagout procedures. Shut off the gas before servicing the unit. All gas joints disturbed during servicing must be checked for leaks.

  • Page 10: Infrared Burner

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS Two wrenches may be required to disconnect compression fittings if the orifice fittings begin to turn or damage to the flexible tubing may occur. Use (1) wrench on compression fitting and (1) wrench on the orifice fitting.

  • Page 11: Thermocouple (Infrared Burner)

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS THERMOCOUPLE (INFRARED BURNER) Disconnect the electrical power to the machine and follow lockout / tagout procedures. Removal Fig. 20 Remove BACK PANEL. Loosen mounting nut and remove thermocouple Remove FRONT PANEL.

  • Page 12: Ignitor (Infrared Burner)

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS Route thermocouple wires through the opening in burner shield. Lift burner shield and position it so the front mounting tab on the thermocouple shield can be inserted into the upper slotted opening in the burner shield.

  • Page 13: Griddle Plate Assembly

    VCCG Series Heavy Duty Gas Griddle - REMOVAL AND REPLACEMENT OF PARTS Remove screws (2) securing griddle plate to frame at the front of griddle. Cut two lengths of 2x4 appropriate for the griddle plate width, leaving additional length to grasp on each side of griddle plate.

  • Page 14: Service Procedures And Adjustments

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS • If temperature measurement is outside of TEMPERATURE CONTROLLER tolerance then temperature control must be CALIBRATION calibrated. CALIBRATING TEMPERATURE CONTROL NOTE: Ensure the griddle is level before performing Remove FRONT PANEL.

  • Page 15: Radiant Burner - Air Shutter Adjustment

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS If a proper flame is observed as described RADIANT BURNER - AIR SHUTTER in the beginning paragraph, no further ADJUSTMENT adjustment is necessary. If flame is yellow tipping and lifting from burner, continue with procedure to adjust.

  • Page 16: Burner Gas Orifice Check

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS 10. Once the correct pressure has been set, turn off the power switch and gas supply. Return needle valve to the closed position then disconnect manometer. 11. Install the adjustment screw cap.

  • Page 17: Thermocouple Test

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS Fig. 32 Remove FRONT PANEL. Fig. 33 Verify gas orifice is threaded into the fitting Check the thermocouple for resistance. properly, and is centered and mounted If meter reads an overload (OL) condition perpendicular to the burner venturi opening.

  • Page 18: Ignition Module Test

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS If LED is Red and blinking an error code, there may be a problem with pilot burner, flame sense or ignition module. To identify error code, refer to IGNITION MODULE - LED DIAGNOSTICS AND OPERATING STATUS .

  • Page 19: Radiant Burner - Pilot Flame Adjustment

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS Main burner valve energized by main valve To increase pilot flame turn valve needle output (pin 5) from ignition module allowing gas counterclockwise. To decrease pilot flame, flow to burner and the burner lights.

  • Page 20: Infrared Burner

    VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS If main burner solenoid valve has no voltage, perform IGNITION MODULE TEST and TEMPERATURE CONTROLLER TEST. If 120VAC is present on solenoid valve terminals after performing previous steps, either the solenoid coil or valve is malfunctioning.

  • Page 21: Electrical Operation

    VCCG Series Heavy Duty Gas Griddle - ELECTRICAL OPERATION ELECTRICAL OPERATION COMPONENT FUNCTION Temperature Controls griddle surface temperature for the individual heat zone by monitoring Controller ... . thermocouple input (K type ).

  • Page 22: Griddle Wiring Diagram

    VCCG Series Heavy Duty Gas Griddle - ELECTRICAL OPERATION Ignition modules turn on the main valve Main burner solenoids on gas valves are output at pin 5. energized and gas flows to each burner. Burners light and begin heating griddle.

  • Page 23: Troubleshooting

    VCCG Series Heavy Duty Gas Griddle - TROUBLESHOOTING TROUBLESHOOTING TEMPERATURE CONTROLLER - LED DIAGNOSTICS AND OPERATING STATUS NOTE: Each of the individual thermostat LED's are externally mounted to the front panel and are refered to as thermostat cycle lights. Each 12" griddle section has individual controls.

  • Page 24: General

    VCCG Series Heavy Duty Gas Griddle - TROUBLESHOOTING IGNITION MODULE ERROR CODES Red Flashes Error Definition Error Type Possible Cause Verify gas supply is turned on and gas supply pressure is correct. Air not purged from gas supply line. Cycle power switch 2-3 times to see if pilot will light.
  • Page 25 VCCG Series Heavy Duty Gas Griddle - TROUBLESHOOTING GENERAL PROBLEM POSSIBLE CAUSES Power switch inoperative. No power to ignitor module. Ignition module not properly grounded. No spark to ignite pilot burner. Spark gap incorrect. Ignitor/flame sense wire inoperative. Ignition module malfunction.

  • Page 26: Infrared Burner

    VCCG Series Heavy Duty Gas Griddle - TROUBLESHOOTING INFRARED BURNER INFRARED BURNER SYMPTOM POSSIBLE CAUSE Orifice incorrect size or dirty. Incorrect gas pressure. Incorrect gas type. Burner not lighting properly; or poor burner flame appearance; or burner flame not orange.

This manual is also suitable for:

Vccg48Vccg24Vccg36Vccg60Vccg72Vccg48-ac ... Show all

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