Vulcan-Hart C24EO3 Service Manual
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Vulcan-Hart C24EO3 Service Manual

C24eo series electric countertop steamers
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C24EO5
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
C24EO SERIES ELECTRIC
COUNTERTOP STEAMERS
C24EO3
C24EO5
- NOTICE -
3600 North Point Blvd Baltimore, MD 21222
ML-136006
ML-136007
F25386 (0415)

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  • Page 1 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 3600 North Point Blvd Baltimore, MD 21222 F25386 (0415)

  • Page 2: Table Of Contents

    C24EO3 - 208V/240V ........

  • Page 3: General

    VOM with an AC current tester (any quality VOM with a sensitivity of at least 20,000 ohms per volt • C24EO3 - 24" w x 33" d x 19.5" h can be used) • C24EO5 - 24" w x 33" d x 26" h •...
  • Page 4 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - GENERAL • Tile Trowel 3/16" x 5/32" V notch; Grainger catalog stock number 5LG08 or equivalent for coating heating element assembly with thermal transfer compound • Loctite® ODC-Free Cleaner and Degreaser (McMaster-Carr Part No. 66415A21) or equivalent fast drying, no residue cleaner.

  • Page 5: Removal And Replacement Of Parts

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS COVERS AND PANELS Disconnect the electrical power to the machine and follow lockout / tagout procedures. SIDE PANELS Remove screws from bottom of panel. Fig.

  • Page 6: Component Panel Components

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS COMPONENT PANEL COMPONENTS Disconnect the electrical power to the machine and follow lockout / tagout procedures. Remove right side panel as outlined under COVERS AND PANELS. Disconnect lead wires to component being replaced.

  • Page 7: High Limit Thermostat

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Remove thermostat from mounting bracket. Remove screw and heat shield to access capillary bulb. Fig. 8 Remove hold thermostat. Apply a small amount of thermal transfer Fig. 10 compound to the mating surface (disk side) of the replacement thermostat.

  • Page 8: Low Water Thermostat

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS LOW WATER THERMOSTAT Disconnect the electrical power to the machine and follow lockout / tagout procedures. Remove right SIDE PANEL and REAR PANEL. Disconnect lead wires. Fig. 13 Remove temperature probe from steam vent pipe.

  • Page 9: Installation

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Partially remove heating element assembly by pulling assembly towards you. Remove high limit thermostat bulb and bracket. Fig. 14 Remove bolts. NOTE: Support heating element assembly while removing last bolt. Fig.

  • Page 10: Manual Drain Valve

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Connect lead wires to 1CON and 2CON in noted Check steamer for leaks and proper operation. positions. DOOR Check steamer for proper operation. MANUAL DRAIN VALVE Disconnect the electrical power to the machine and follow lockout / tagout procedures.

  • Page 11: Door Handle

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Fig. 22 Fig. 24 Remove gasket plate. Pull outer door housing away from inner door panel starting at the hinge side of door to Remove gasket from inner door panel. separate the door halves.

  • Page 12: Door Latch Assembly

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Separate outer door housing assembly from inner door panel as outlined under DOOR HANDLE. Remove screws securing latch assembly to inner door panel and remove latch mechanism. Fig. 26 Install lock nuts and tighten until no gap exists between handle, step spacer and lock nut.

  • Page 13: Door Hinge Bearings

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Apply Lubriplate 630AA to sides of sliding Install outer door housing assembly as outlined bracket. in DOOR HANDLE INSTALLATION. Insert spring pin into bottom of sliding bracket. Check opening and closing operation of door. Place spring over spring pin.
  • Page 14 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Fig. 34 Press hinge bearing fully into door assembly using a C-clamp or equivalent. 10. Reassemble parts removed in reverse order. 11. Check door for fit and proper door gasket sealing. F25386 (0415) Page 14 of 27...

  • Page 15: Service Procedures And Adjustments

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS Certain procedures in this section require electrical test or measurements while power is applied to the machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and reapply power to the test.

  • Page 16: Heating Element Test

    Check for proper operation. check when a clamp on type amp meter is available. WATTS PER AMPS PER ELEMENT MODEL VOLTS OHMS PER ELEMENT ELEMENT LEAD 2003 21.6 C24EO3 65.2 2667 11.1 21.6 4000 19.2 10.8 C24EO5 4000 16.7 14.4 4000 14.4...
  • Page 17 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - SERVICE PROCEDURES AND ADJUSTMENTS NOTE: Use temperature scale on control dial plate for reference only. The scale represents dial turns in 1°F increments, not the actual temperature. When calibrating, use the recorded temperature taken from thermocouple.

  • Page 18: Electrical Operation

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION ELECTRICAL OPERATION COMPONENT FUNCTION Buzzer ....Creates audible signal when timed cook cycle is complete and when a low water condition exists.

  • Page 19: Component Location

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION Door closed (door switch closed). COMPONENT LOCATION Timer off. Cooking compartment filled to the water level mark and below hold temperature of 175°F (+/- 5°F). Drain valve is closed (drain lever pushed in). Press momentary start switch (1S).

  • Page 20: Constant Cooking Mode

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION Timer contacts close, timer motor is Constant Cooking Mode energized and timing down begins. Conditions. NOTE: Additional time can be set or the cook timer Steamer connected to correct voltage and is can be turned off throughout the cooking cycle.
  • Page 21 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION K1 N.C. contacts close and N.O. contacts Regulating contactor (2CON) coil open. deenergized and power is removed from heating elements. NOTE: Steamer will maintain hold temperature until a cook time is dialed on timer, door is opened, or Steamer cycles on the temperature control until power switch is turned off.

  • Page 22: Schematic Diagram

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION SCHEMATIC DIAGRAM Fig. 40 F25386 (0415) Page 22 of 27...

  • Page 23: Wiring Diagrams - Heating Elements

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION WIRING DIAGRAMS - HEATING ELEMENTS C24EO3 - 208V/240V C24EO3 - 208V/240V C24EO5 - 208V/240V Page 23 of 27 F25386 (0415)

  • Page 24: C24Eo5 - 480V

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION C24EO5 - 208V/240V C24EO5 - 480V F25386 (0415) Page 24 of 27...
  • Page 25 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - ELECTRICAL OPERATION C24EO5 - 480V Page 25 of 27 F25386 (0415)

  • Page 26: Troubleshooting

    C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES Steamer not level. Compartment leaks water around door. Steamer overfilled. Worn gasket. Damaged gasket. Steam leaks around door. Steam vent pipe blocked. Door not adjusted. Line voltage incorrect or transformer malfunction. Control circuit fuse(s) open.
  • Page 27 C24EO SERIES ELECTRIC COUNTERTOP STEAMERS - TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES Temperature control set point too high. Temperature probe malfunction. High water usage. Temperature control malfunction. Steamer operating in constant mode. Door left open between loads. Excessive or inconsistent cook times. Temperature control set point too low.

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C24eo5

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