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Hoshizaki service manual Ice Purge Cycle, DCM-500BAH-OS, DCM-500BWH-OS, Wire Color Code

Models: DCM-500BWH DCM-500BAH DCM-500BWH-OS DCM-500BAH-OS

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2. Ice Purge Cycle

2. Ice Purge Cycle

Upper float switch closes, water control relay energizes, inlet water valve closes, gear motor starts, gear motor protect relay energizes.

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
Y	YELLOW

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Hoshizaki service manual Ice Purge Cycle, DCM-500BAH-OS, DCM-500BWH-OS, Wire Color Code

Contents

HoshizakiHoshizaki America, Inc Cubelet Icemaker / Dispenser Models DCM-500BAHDCM-500BAH-OS DCM-500BWH DCM-500BWH-OS Peachtree City, GA Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Attn Hoshizaki Technical Support DepartmentCONTENTS C. Diagnostic Charts IV. Service DiagnosisA. Diagnostic Procedure V. Removal and Replacement of ComponentsI. Specifications A. Icemaker 1. DCM-500BAH2. DCM-500BAH-OS design without prior3. DCM-500BWH design 4. DCM-500BWH-OSwithout prior II. General Information A. Construction 1. DCM-500BAH-OS2. DCM-500BWH-OS B. Ice Making Unit 1. DCM-500BAH-OS, DCM-500BWH-OS2. Ice Purge Cycle 60 seconds C. Sequence of Operation1. Fill Cycle 3. Freeze Cycle3.12 Hour Drain Cycle Shutdown & Restart 1. Startup2.Shutdown & Restart D. Control Board Part Number 2A1592-01 1.Control Board Layout aDCM-500BAH, DCM-500BWHControl Board Part Number 2A2649-01 b DCM-500BAH-OS, DCM-500BWH-OSControl Board 2. Features aLED LightsaPower Supply 3. Controls and Adjustments aPortion Control4. Control Board Check Procedure bIce Making ComponentscDispensing Components DCM-500BAH, DCM-500BWH E. Float Switch Inlet Water Valve Water Supply Float Switch III. Technical InformationA. Water Circuit and Refrigeration Circuit Gear Motor Fan Air-Cooled Condenser Access ValveAccess Compressor Valve Water Supply Out Water Regulating Valve AccessDispensing Water Valve High Pressure Switch 2. DCM-500BWH-OSHigh Pressure Switch B. Wiring Diagrams1. DCM-500BAH, DCM-500BWH WIRE COLOR CODEWIRE COLOR CODE 2. DCM-500BAH-OS, DCM-500BWH-OSHigh Pressure Switch Air-CooledModelC. Sequence of Electrical Circuit - Ice Making 1. Fill CycleDCM-500BAH 2. Ice Purge CycleWIRE COLOR CODE DCM-500BWHDCM-500BAH WIRE COLOR CODE3. Freeze Cycle DCM-500BAH-OS4. 12 Hour Drain Cycle / Drain Switch 5. Shutdown DCM-500BAH6. Low Water Safety 7. High Pressure Switch D. Sequence of Electrical Circuit - Dispensing 1. Continuous Dispense2. Portion Dispense E. Performance Data 1. DCM-500BAH-OS2. DCM-500BWH-OS APPROXIMATEIV. Service Diagnosis A. Diagnostic Procedure B.Ice Production Check C. Diagnostic Charts 1. No Ice Production1 The icemaker will 3 Ice purge cycle will 2. Low Ice Production 3. Other 4. Dispensing 5. Opti Serve OS Sensors 5c. Water Dispensing 5a. Ice Dispensing Continuous Mode5b. Ice Dispensing Portion Mode 1. Refrigerant Recovery V. Removal and Replacement of ComponentsA.Service for Refrigerant Lines 2. Brazing3.Evacuation and Recharge R-404A B. Removal and Replacement of Compressor C. Removal and Replacement of Expansion Valve Page 2.Removal and Replacement of Extruding Head 1. Upper Bearing Wear Check3.Removal and Replacement of Auger 4. Removal and Replacement of Evaporator9Disconnect the inlet and outlet tubing 11Lift off the evaporator5b. Lower Housing 6.Removal and Replacement of Gear Motor 6Disconnect the condenser inlet and outlet piping 15Check for water leaks Water‑Cooled Model Only I.Removal and Replacement of Fan Motor K. Removal and Replacement of Drain Valve 2.Dispensing or Agitating Motor L.Removal and Replacement of Dispensing System1.Dispensing Auger and Agitator Dispensing Auger 6Install the new motorAgitator Agitating Motor Dispensing Motor VI. Cleaning and Maintenance A. Cleaning and Sanitizing Instructions1. Water System aCleaning SolutionbCleaning Procedure cCleaning and Sanitizing Procedure cSanitizing SolutionbSanitizing Solution 2. Dispensing ComponentsFig. Fig B. Maintenance C. Preparing the Icemaker for Long Storage 5Close the condenser water supply line drain valve