Vulcan C24EA6 Manuel d'utilisateur Page 1

A product of VULCAN-HART LOUISVILLE, KY 40201-0696F35453 (July 2008)- NOTICE -This Manual is prepared for the use of trained Vulcan ServiceTechnician

MODEL C24EA - DOORF35453 (July 2008) Page 10 of 68Installation1. Install latch assembly onto inner door panel withspring pin toward bottom of door pa

MODEL C24EA - DOORF35453 (July 2008)Page 11 of 68B. Locate the striker that catches on doorlatch near steam chamber on front panel.C. Remove the nut

MODEL C24EA - THERMOSTATS AND HIGH LIMITSF35453 (July 2008) Page 12 of 68THERMOSTAT AND HIGH LIMITSHEAT EXCHANGER HIGH LIMIT1. Turn off machine to dr

MODEL C24EA - THERMOSTATS AND HIGH LIMITSF35453 (July 2008)Page 13 of 688. Remove capillary tube from heating element.Installation1. Route capillary

MODEL C24EA - TIMERSF35453 (July 2008) Page 14 of 68TIMERSREMOVAL AND REPLACEMENTNOTE: When the timer reaches zero, an externalbuzzer will sound and

MODEL C24EA - HEATING ELEMENTS AND CONTACTORSF35453 (July 2008)Page 15 of 68HEATING ELEMENTS AND CONTACTORSREMOVAL AND REPLACEMENTHeating Elements1.

MODEL C24EA - HEATING ELEMENTS AND CONTACTORSF35453 (July 2008) Page 16 of 68Contactors1. Turn off machine to drain steam generator.Allow steamer to

MODEL C24EA - HEATING ELEMENTS AND CONTACTORSF35453 (July 2008)Page 17 of 683. If unable to check current draw, a resistance check may indicate a ma

MODEL C24EA - HEAT EXCHANGER ELEMENTS AND RELAYSF35453 (July 2008) Page 18 of 68HEAT EXCHANGER ELEMENTS AND RELAYSREMOVAL AND REPLACEMENTHeat Exchang

MODEL C24EA - HEAT EXCHANGER ELEMENTS AND RELAYSF35453 (July 2008)Page 19 of 686. Reassemble parts removed in reverse order.Apply pipe thread sealan

MODEL C24EAF35453 (July 2008) Page 2 of 68TABLE OF CONTENTSGENERAL ... 3

MODEL C24EA - HEAT EXCHANGER ELEMENTS AND RELAYSF35453 (July 2008) Page 20 of 683. If unable to check current draw, a resistance check may indicate a

MODEL C24EA - WATER LEVEL CONTROL COMPONENTSF35453 (July 2008)Page 21 of 68WATER LEVEL CONTROL COMPONENTSWATER LEVEL CONTROL - LOW LEVEL CUT-OFF AND

MODEL C24EA - WATER LEVEL CONTROL COMPONENTSF35453 (July 2008) Page 22 of 68WATER LEVEL CONTROL1. Remove FRONT BASE PANEL as outlinedunder COVERS AND

MODEL C24EA - WATER LEVEL CONTROL COMPONENTSF35453 (July 2008)Page 23 of 68DUAL WATER VALVES SHOWNFILTERED AND NON-FILTEREDDUAL WATER SOLENOIDVALVES

MODEL C24EA - WATER LEVEL CONTROL COMPONENTSF35453 (July 2008) Page 24 of 686. Remove screws (2) securing dual watersolenoid valve to rear panel.7. R

MODEL C24EA - WATER LEVEL CONTROL COMPONENTSF35453 (July 2008)Page 25 of 68NOTE: When installing, align the flat on delime valvestem and the locking

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008) Page 26 of 68SWITCHES, SOLENOIDS, RELAYS AND BUZZERPOWER AND DELIME SWITCHES1.

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008)Page 27 of 68Installation1. Verify E-clip is installed on door switch linkagei

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008) Page 28 of 68CheckNOTE: Pressure can be checked with the small airpocket that

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008)Page 29 of 68B. Check cut-out pressure after makingadjustment. Repeat Check an

MODEL C24EA - GENERALF35453 (July 2008)Page 3 of 68GENERALINTRODUCTIONThis manual is applicable to the models and MLnumbers listed on the cover pag

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008) Page 30 of 68COMPARTMENT STEAMSOLENOID1. Turn off machine to drain steam gener

MODEL C24EA - SWITCHES, SOLENOIDS, RELAY, AND BUZZERF35453 (July 2008)Page 31 of 68BUZZER1. Remove COOKING COMPARTMENT RIGHTSIDE PANEL as outlined u

MODEL C24EA - CONTROL BOARDF35453 (July 2008) Page 32 of 68CONTROL BOARDREMOVAL AND REPLACEMENT1. Remove FRONT BASE PANEL as outlined under COVERS AN

MODEL C24EA - CONTROL BOARDF35453 (July 2008)Page 33 of 68LAYOUT AND LED LEGENDThe control board provides a central location for wire harness connec

MODEL C24EA - CONTROL BOARDF35453 (July 2008) Page 34 of 68STEAM GENERATOR OPERATIONAL STATUS(LED INDICATORS)Use the tables below to determine the op

MODEL C24EA - CONTROL BOARDF35453 (July 2008)Page 35 of 68Water Level at LLCO Probe• LLCO LED is on (water level control) (LED is on until water dro

MODEL C24EA - CONTROL BOARDF35453 (July 2008) Page 36 of 68Steam Generator at Operating Pressure• Ready lights (1LT) (green) lit for the upper and lo

MODEL C24EA - CONTROL BOARDF35453 (July 2008)Page 37 of 68Timers Reach Zero (Upper and lower Compartments)• Buzzer sounds until timer turned to off,

MODEL C24EA - CONTROL BOARDF35453 (July 2008) Page 38 of 68DELIMING CYCLE STATUS(LED INDICATORS)• Conditions same as listed under STARTING CONDITIONS

MODEL C24EA - CONTROL BOARDF35453 (July 2008)Page 39 of 68Water Level at LLCO Probe• LLCO LED is on (water level control) (LED is on until water dr

MODEL C24EA - GENERALF35453 (July 2008) Page 4 of 68Other chemical properties in water supplies can alsoaffect good steam generation and vary from w

MODEL C24EA - CONTROL BOARDF35453 (July 2008) Page 40 of 68Steam Generator at Operating Pressure• All contactors de-energized (heating stops).LEDSTAT

MODEL C24EA - CONTROL BOARDF35453 (July 2008)Page 41 of 68LEDSTATUSCOMPONENT DESCRIPTIONON OFF1 X Same as Starting Conditions3XRegulating contactor

MODEL C24EA - HEAT EXCHANGERF35453 (July 2008) Page 42 of 68HEAT EXCHANGERREMOVAL AND REPLACEMENT1. Turn off machine to drain steam generator. Allows

MODEL C24EA - HEAT EXCHANGERF35453 (July 2008)Page 43 of 68MOTORIZED DELIME VALVENOTE: The motorized delime valve (normally closed)can be opened or

MODEL C24EA - STEAM GENERATORF35453 (July 2008) Page 44 of 68STEAM GENERATORREMOVAL AND REPLACEMENT1. Turn off machine to drain steam generator. Allo

MODEL C24EA - STEAM GENERATORF35453 (July 2008)Page 45 of 68C. Remove four bolts securing high voltagecontrol box to frame.12. Remove low voltage co

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 46 of 68ELECTRICAL OPERATIONCOMPONENT FUNCTIONSTEAM GENERATOR CONTROLSWater Level Control (

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 47 of 68Solenoid, Delime Valve ... Controlled by delime relay K7 and drain c

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 48 of 68Relay (K9), Cavity ... Controlled by lower cooking compartment

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 49 of 68COMPONENT LOCATIONSteam Generator Base

MODEL C24EA - COVERS AND PANELSF35453 (July 2008)Page 5 of 68COVERS AND PANELSFRONT BASE PANEL1. Remove screws from the bottom of panel.2. Pull bott

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 50 of 68

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 51 of 68Water Level ControlCooking Compartment Controls

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 52 of 68SMART CYCLE POWERMANAGEMENTReduces energy use by not powering all the heating eleme

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 53 of 68K. Pressure switch (1PAS) closed.L. Drain valve closed and steam generator is empty

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 54 of 68a) Ready lights (1LT) (green) are lit for the upper and lower compartments.b. K1-5/

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 55 of 682) HL LED off. High level (HL) coil de-energized by ILR-2 contacts opening.a. WLC (

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 56 of 686. LED 13 Lit. Power to delime 1 (TDR). Time delay relay has no output from load te

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 57 of 68a. Delime relay (K2) remains powered. LED 15 remains lit from pressing delime switc

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 58 of 68SCHEMATIC DIAGRAMS

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 59 of 68- THIS PAGE INTENTIONALLY LEFT BLANK -

MODEL C24EA - COVERS AND PANELSF35453 (July 2008) Page 6 of 68REAR BASE PANEL1. Remove electrical power connection tomachine.2. Turn off water supply

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 60 of 68Steam Generator Base

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 61 of 68

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 62 of 68WIRING DIAGRAMSHeating Element Wiring

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 63 of 68

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008) Page 64 of 68

MODEL C24EA - ELECTRICAL OPERATIONF35453 (July 2008)Page 65 of 68Cooking Compartment

MODEL C24EA - TROUBLESHOOTINGF35453 (July 2008) Page 66 of 68TROUBLESHOOTINGBefore performing any of the troubleshooting checks listed below, remove

MODEL C24EA - TROUBLESHOOTINGSYMPTOM POSSIBLE CAUSESF35453 (July 2008)Page 67 of 68Steamer will not heat. 1. Check incoming voltage.2. Steam generat

MODEL C24EA - TROUBLESHOOTINGF35453 (July 2008) Printed in U.S.A.- N O T E S -

MODEL C24EA - DOORF35453 (July 2008)Page 7 of 68DOORREMOVAL1. Close door.2. Remove COOKING COMPARTMENT LEFTSIDE PANEL as outlined under COVERS ANDPA

MODEL C24EA - DOORF35453 (July 2008) Page 8 of 68DOOR HANDLERemoval1. Open door.2. Remove screws from top and bottom of doorassembly.3. Pull outer do

MODEL C24EA - DOORF35453 (July 2008)Page 9 of 68LATCH ASSEMBLYRemoval and Disassembly1. Separate outer door housing assembly frominner door panel as