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Vulcan-Hart C24EO3 manual

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Table of contents for the manual

  • Page 1

    This Manual is prepared for the use of tr ained Vulcan Service Technicians and should n ot 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, y ou should read, in its entirety, the repair procedure y ou w ish to per form to determine if you [...]

  • Page 2

    C24EO SERIES STEAMERS TABLE OF CONTENTS G E N E R A L ................................................................................ 3 Installation, Operation and Cleaning ........................................................ 3 Introduction ............................................................................ 3 F e a t u r e s .........[...]

  • Page 3

    C24EO SERIES STEAMERS - GENERAL GENERAL INSTALLATION, OPERATION AND CLEANING Refer to the Installation & Operation Manual for specific instructions. INTRODUCTION Features ! Requires no water or drain line connections (manual fill & manual drain). ! Cast aluminum element block for efficient heat transfer and distribution. ! Field convertible[...]

  • Page 4

    C24EO SERIES STEAMERS - GENERAL TOOLS Standard ! Standard set of hand tools ! Clear silicone sealant ! VOM with an AC current tester (any quality VOM with a sensitivity of at least 20,000 ohms per volt can be used) ! Temperature meter & thermocouple Special ! Thermal Transfer Compound, Dow Corning 340 Part No. 819643-2 (13.5 oz. tube) or equiva[...]

  • Page 5

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS COVERS AND PANELS Side Panels 1. Remove screws from bottom of panel. 2. Slide panel down to clear top cover. 3. Reverse procedure to install. Top Cover 1. Remove SIDE PANELS. 2. Remove screws securing rear of top cover. 3. Remove nuts securing front of top cov[...]

  • Page 6

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS 2. Disconnect lead wires to component being replaced. 3. Remove component. 4. Reverse procedure to install replacement component and check steamer for proper operation. NOTE: If replacing temperature control, see TEMPERATURE CONTROL CALIBRATION in SERVICE PROCEDURES AND ADJUSTMENTS. TIMER 1. [...]

  • Page 7

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS HIGH LIMIT THERMOSTAT Do not sharply bend and kink, or clamp down on the capillary tube or damage may occur. 1. Remove right SIDE PANEL. 2. Disconnect lead wires from high limit. 3. Remove thermostat from mounting bracket. 4. Remove screw and heat shield to access capillary bulb. 5. Loosen sc[...]

  • Page 8

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS C. Install thermostat hand tight. Do not over tighten . TEMPERATURE PROBE 1. Remove right SIDE PANEL and REAR PANEL. 2. Disconnect probe leads from the temperature control. 3. Remove temperature probe from steam vent pipe. 4. Reverse procedure to install replacement probe and check steamer fo[...]

  • Page 9

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS 5. Partially remove heating element assembly by pulling assembly towards you. 6. Remove high limit thermostat bulb and bracket. 7. Remove heating element assembly. Installation NOTE: When replacing element assembly for 3 pan unit with 240V supply, disconnect and insulate element leads with or[...]

  • Page 10

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS DOOR Removal 1. Close door. 2. Remove left SIDE PANEL. 3. Remove nuts from upper hinge located inside front panel. 4. Open door slightly, and while holding door, pull upper hinge away from front panel. 5. Pull upper hinge out of upper door hinge bushing. 6. Lift door assembly up and off lower[...]

  • Page 11

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Handle Installation 1. Apply Lubriplate 630AA around slots of outer door housing where step spacers contact housing. 2. Install door handle into outer door housing such that hinge side of door housing is to the left and arrow on handle is pointed upward. 3. Install step spacer with smaller ra[...]

  • Page 12

    C24EO SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Assembly 1. Apply Lubriplate 630AA to sides of sliding bracket. 2. Insert spring pin into bottom of sliding bracket. A. Place spring over spring pin. 3. Assemble sliding bracket into stationary bracket. 4. While holding head of spring pin against bottom of sliding bracket, insert spring pin i[...]

  • Page 13

    C24EO SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS DOOR LATCH ADJUSTMENT Opening a Jammed Door Should the steamer door jam and cannot be opened, DO NOT FORCE OR PRY the door as damage will occur. 1. Lift up on bottom of door at the handle end to disengage latch. A. If door does not open, remove right SIDE P[...]

  • Page 14

    C24EO SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS HEATING ELEMENT TEST The heating element assembly contains elements molded into a cast aluminum block. 3 pan units have 6 elements and 5 pan units have 3 elements. See wiring diagrams. 1. Turn cooking mode switch to constant. 2. Measure voltage at heating element terminals on contactors and [...]

  • Page 15

    C24EO SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS TEMPERATURE CONTROL CALIBRATION To set the temperature control for optimum steamer operation, the elevation above sea level for the service location must first be determined. The steamer was preset at the factory to sea level. The elevation is used in conjunction with the elevation table bel[...]

  • Page 16

    C24EO SERIES STEAMER - ELECTRICAL OPERATION ELECTRICAL OPERATION COMPONENT FUNCTION B u z z e r ................................ Creates audible signal when timed cook cycle is complete and when a low water condition exists. L i m i t i n g C o n t a c t o r ( 1 C O N ) ............... Supplies line voltage to heating element assembly. Energized wh[...]

  • Page 17

    C24EO SERIES STEAMER - ELECTRICAL OPERATION COMPONENT LOCATION CONTROL PANEL COMPONENTS FRONT PANEL COMPONENTS F25386 (June 2010) Page 17 of 24[...]

  • Page 18

    C24EO SERIES STEAMER - ELECTRICAL OPERATION SEQUENCE OF OPERATION Schematic diagram AI2851 will be used to explain the electrical sequence of operation. Timed Cooking Mode 1. Conditions. A. Steamer connected to correct voltage and is properly grounded. B. Power switch (1S) off. 1) Relay K3 energized. K3 N.C. contacts open. C. High limit thermostat [...]

  • Page 19

    C24EO SERIES STEAMER - ELECTRICAL OPERATION 8. Turn cook timer off. A. Timer contacts 11 & 14 open, buzzer is de- energized. B. Steamer reverts to hold temperature and continues to cycle until a cook time is dialed on timer, power switch is turned to off, or the door is opened. NOTE: If water level becomes low during cycling, low water thermost[...]

  • Page 20

    C24EO SERIES STEAMER - ELECTRICAL OPERATION SCHEMATIC DIAGRAM F25386 (June 2010) Page 20 of 24[...]

  • Page 21

    C24EO SERIES STEAMER - ELECTRICAL OPERATION WIRING DIAGRAMS - HEATING ELEMENTS C24EO3 - 208V/240V F25386 (June 2010) Page 21 of 24[...]

  • Page 22

    C24EO SERIES STEAMER - ELECTRICAL OPERATION C24EO5 - 208V/240V F25386 (June 2010) Page 22 of 24[...]

  • Page 23

    C24EO SERIES STEAMER - ELECTRICAL OPERATION C24EO5 - 480V F25386 (June 2010) Page 23 of 24[...]

  • Page 24

    C24EO SERIES STEAMER - TROUBLESHOOTING TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES Compartment leaks water around door. 1. Steamer not level. 2. Steamer overfilled. Steam leaks around door. 1. Worn gasket. 2. Damaged gasket. 3. Steam vent pipe blocked. 4. Door not adjusted. Steamer will not heat (cook light off, low water light off). 1. Line voltage in[...]