Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki DCM-500BWH-OS D. Sequence of Electrical Circuit - Dispensing, Continuous Dispense

Models: DCM-500BWH-OS

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D. Sequence of Electrical Circuit – Dispensing

D. Sequence of Electrical Circuit – Dispensing

1. Continuous Dispense

Agitating motor energizes for .6 seconds for every 12 seconds of accumulative dispense time. Maximum dispense time per dispense switch activation is 60 seconds. After

60 seconds, the dispense switch must be disengaged and engaged again.

DCM-500BAH

DCM-500BWH

(Control Board)

DCM-500BAH-OS

DCM-500BWH-OS

(Control Board)

WIRE COLOR CODE

BK	BLACK
BR	BROWN
BU	BLUE
DBU	DARK BLUE
GY	GRAY
LBU	LIGHT BLUE

O	ORANGE		W/BK	WHITE/BLACK
P	PINK		W/BR	WHITE/BROWN
R	RED		W/BU	WHITE/BLUE
V	VIOLET		W/O	WHITE/ORANGE
W	WHITE		W/R	WHITE/RED

YYELLOW

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Hoshizaki DCM-500BWH-OS service manual D. Sequence of Electrical Circuit - Dispensing, Continuous Dispense

Contents

Cubelet Icemaker / Dispenser Models DCM-500BAH DCM-500BAH-OS HoshizakiHoshizaki America, IncPhone 1-800-233-1940 Technical Service 770 487-2331 Fax Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Attn Hoshizaki Technical Support DepartmentCONTENTS IV. Service Diagnosis A. Diagnostic ProcedureC. Diagnostic Charts V. Removal and Replacement of ComponentsI. Specifications A. Icemaker 1. DCM-500BAH2. DCM-500BAH-OS SHAPE OF ICE90/70F Spare Fuse3. DCM-500BWH 4. DCM-500BWH-OS II. General Information A. Construction 1. DCM-500BAH-OS2. DCM-500BWH-OS Evaporator AssemblyInlet Water Valve Float Switch Reservoir Control Box Power Switch Door Switch Gear Motor Control Switch Dispense Mode SwitchB. Ice Making Unit 1. DCM-500BAH-OS, DCM-500BWH-OSC. Sequence of Operation 1. Fill Cycle2. Ice Purge Cycle 60 seconds 3. Freeze Cycle1. Startup 2. Shutdown & Restart 3. 12 Hour Drain Cycle Shutdown & RestartD. Control Board Part Number 2A1592-01 1. Control Board Layout a DCM-500BAH, DCM-500BWHControl Board Part Number 2A2649-01 b DCM-500BAH-OS, DCM-500BWH-OSControl Board 2. Features a LED Lights3. Controls and Adjustments a Portion Control 4. Control Board Check Procedurea Power Supply b Ice Making Componentsc Dispensing Components DCM-500BAH, DCM-500BWH E. Float Switch Red upper Black common Blue lower Magnet towards top Upper Float blueSpring Retainer Clip Magnet towards top Lower Float white Plastic Retainer ClipIII. Technical Information A. Water Circuit and Refrigeration Circuit Inlet Water Valve Water Supply Float Switch Water Level ReservoirEvaporator Overflow Gear Motor Fan Air-Cooled Condenser Access Valve Water Valve High Pressure Switch Compressor Access ValveFloat Switch Water-Cooled Condenser Water Supply Out Water Regulating Valve AccessWater Valve High Pressure Switch Access Compressor Valve 2. DCM-500BWH-OSB. Wiring Diagrams 1. DCM-500BAH, DCM-500BWHHigh Pressure Switch WIRE COLOR CODE2. DCM-500BAH-OS, DCM-500BWH-OS High Pressure SwitchWIRE COLOR CODE Air-Cooled ModelC. Sequence of Electrical Circuit - Ice Making 1. Fill Cycle2. Ice Purge Cycle WIRE COLOR CODEDCM-500BAH DCM-500BWHWIRE COLOR CODE 3. Freeze CycleCompressor and fan motor start 60 seconds after gear motor starts DCM-500BAH4. 12 Hour Drain Cycle / Drain Switch 5. Shutdown 6. Low Water Safety 7. High Pressure Switch D. Sequence of Electrical Circuit - Dispensing 1. Continuous Dispense2. Portion Dispense 1. The data without *marks should be used for reference only E. Performance Data1. DCM-500BAH-OS 2. DCM-500BWH-OS 1. The data without *marks should be used for reference onlyIV. Service Diagnosis A. Diagnostic Procedure B. Ice Production Check C. Diagnostic Charts 1. No Ice ProductionRemedy ProblemPossible Cause Remedy ProblemPossible Cause 2. Low Ice Production ProblemProblem Possible Cause3. Other ProblemPossible Cause Remedy4. Dispensing ProblemPossible Cause Remedy5. Opti Serve OS Sensors 5a. Ice Dispensing Continuous Mode 5b. Ice Dispensing Portion Mode5c. Water Dispensing K5 Pin 3 W/BKV. Removal and Replacement of Components A. Service for Refrigerant Lines1. Refrigerant Recovery 2. Brazing3. Evacuation and Recharge R-404A B. Removal and Replacement of Compressor C. Removal and Replacement of Expansion Valve D. Removal and Replacement of Evaporator Assembly Components 2. Removal and Replacement of Extruding Head 1. Upper Bearing Wear Check3. Removal and Replacement of Auger 4. Removal and Replacement of Evaporator4 Recover the refrigerant and store it in an approved container 3 Remove the apron panel, then remove the left side panel8 Remove the evaporator bracket and disconnect the water hoses 9 Disconnect the inlet and outlet tubing5b. Lower Housing 6. Removal and Replacement of Gear Motor Gear Motor Cover Screws Gear Motor Cover Gear MotorGear Motor/Drain Pan Bolts and Washers Gear Motor Bracket Gear Motor Bracket Bolts Drain Pan Drain Pan Bracket Bolts Drain Pan BracketE. Removal and Replacement of Self-Contained Air-Cooled Condenser F. Removal and Replacement of Water-Cooled Condenser G. Removal and Replacement of Water Regulating Valve ‑ Water‑Cooled Model OnlyH. Adjustment of Water Regulating Valve - Water-Cooled Model Only I. Removal and Replacement of Fan MotorJ. Removal and Replacement of Inlet or Dispensing Water Valve K. Removal and Replacement of Drain Valve2. Dispensing or Agitating Motor L. Removal and Replacement of Dispensing System1. Dispensing Auger and Agitator 6 Install the new motor Agitator Agitating Motor Dispensing Motor Dispensing AugerVI. Cleaning and Maintenance A. Cleaning and Sanitizing Instructions1. Water System a Cleaning Solutionb Cleaning Procedure c Sanitizing Solution d Sanitizing Procedure - Following Cleaning Procedureb Sanitizing Solution c Cleaning and Sanitizing Procedure3 Remove the front cover of the storage bin B. Maintenance C. Preparing the Icemaker for Long Storage 5 Close the condenser water supply line drain valve