Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki DCM-500BWH-OS service manual High Pressure Switch

Models: DCM-500BWH-OS

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7. High Pressure Switch

When the high pressure switch opens, the compressor stops immediately, 60 seconds later the gear motor stops. To restart, allow time for the high pressure switch to close, then move the power switch to the "OFF" position and then back to the "ON" position.

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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Image 31

Hoshizaki DCM-500BWH-OS service manual High Pressure Switch

Contents

HoshizakiHoshizaki America, Inc Cubelet Icemaker / Dispenser Models DCM-500BAH DCM-500BAH-OSAttn Hoshizaki Technical Support Department Phone 1-800-233-1940 Technical Service 770 487-2331 FaxComplete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GACONTENTS V. Removal and Replacement of Components IV. Service DiagnosisA. Diagnostic Procedure C. Diagnostic Charts1. DCM-500BAH I. Specifications A. IcemakerSpare Fuse 2. DCM-500BAH-OSSHAPE OF ICE 90/70F3. DCM-500BWH 4. DCM-500BWH-OS 1. DCM-500BAH-OS II. General Information A. ConstructionDoor Switch Gear Motor Control Switch Dispense Mode Switch 2. DCM-500BWH-OSEvaporator Assembly Inlet Water Valve Float Switch Reservoir Control Box Power Switch1. DCM-500BAH-OS, DCM-500BWH-OS B. Ice Making Unit3. Freeze Cycle C. Sequence of Operation1. Fill Cycle 2. Ice Purge Cycle 60 seconds2. Shutdown & Restart 3. 12 Hour Drain Cycle Shutdown & Restart 1. StartupD. Control Board Control Board 1. Control Board Layout a DCM-500BAH, DCM-500BWHPart Number 2A1592-01 Control Board b DCM-500BAH-OS, DCM-500BWH-OSPart Number 2A2649-01 a LED Lights 2. Featuresb Ice Making Components 3. Controls and Adjustments a Portion Control4. Control Board Check Procedure a Power Supplyc Dispensing Components DCM-500BAH, DCM-500BWH Plastic Retainer Clip E. Float SwitchRed upper Black common Blue lower Magnet towards top Upper Float blue Spring Retainer Clip Magnet towards top Lower Float whiteWater Valve High Pressure Switch Compressor Access Valve III. Technical Information A. Water Circuit and Refrigeration CircuitInlet Water Valve Water Supply Float Switch Water Level Reservoir Evaporator Overflow Gear Motor Fan Air-Cooled Condenser Access Valve2. DCM-500BWH-OS Float SwitchWater-Cooled Condenser Water Supply Out Water Regulating Valve Access Water Valve High Pressure Switch Access Compressor ValveWIRE COLOR CODE B. Wiring Diagrams1. DCM-500BAH, DCM-500BWH High Pressure SwitchAir-Cooled Model 2. DCM-500BAH-OS, DCM-500BWH-OSHigh Pressure Switch WIRE COLOR CODE1. Fill Cycle C. Sequence of Electrical Circuit - Ice MakingDCM-500BWH 2. Ice Purge CycleWIRE COLOR CODE DCM-500BAHDCM-500BAH WIRE COLOR CODE3. Freeze Cycle Compressor and fan motor start 60 seconds after gear motor starts4. 12 Hour Drain Cycle / Drain Switch 5. Shutdown 6. Low Water Safety 7. High Pressure Switch 1. Continuous Dispense D. Sequence of Electrical Circuit - Dispensing2. Portion Dispense 1. DCM-500BAH-OS E. Performance Data1. The data without *marks should be used for reference only 1. The data without *marks should be used for reference only 2. DCM-500BWH-OSIV. Service Diagnosis A. Diagnostic Procedure B. Ice Production Check 1. No Ice Production C. Diagnostic ChartsPossible Cause ProblemRemedy Possible Cause ProblemRemedy Possible Cause 2. Low Ice ProductionProblem ProblemRemedy 3. OtherProblem Possible CauseRemedy 4. DispensingProblem Possible Cause5. Opti Serve OS Sensors K5 Pin 3 W/BK 5a. Ice Dispensing Continuous Mode5b. Ice Dispensing Portion Mode 5c. Water Dispensing2. Brazing V. Removal and Replacement of ComponentsA. Service for Refrigerant Lines 1. Refrigerant Recovery3. 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 1. Upper Bearing Wear Check 2. Removal and Replacement of Extruding Head4. Removal and Replacement of Evaporator 3. Removal and Replacement of Auger9 Disconnect the inlet and outlet tubing 4 Recover the refrigerant and store it in an approved container3 Remove the apron panel, then remove the left side panel 8 Remove the evaporator bracket and disconnect the water hoses5b. Lower Housing Bracket Bolts Drain Pan Drain Pan Bracket Bolts Drain Pan Bracket 6. Removal and Replacement of Gear MotorGear Motor Cover Screws Gear Motor Cover Gear Motor Gear Motor/Drain Pan Bolts and Washers Gear Motor Bracket Gear MotorE. Removal and Replacement of Self-Contained Air-Cooled Condenser F. Removal and Replacement of Water-Cooled Condenser Water‑Cooled Model Only G. Removal and Replacement of Water Regulating Valve ‑I. Removal and Replacement of Fan Motor H. Adjustment of Water Regulating Valve - Water-Cooled Model OnlyK. Removal and Replacement of Drain Valve J. Removal and Replacement of Inlet or Dispensing Water Valve1. Dispensing Auger and Agitator L. Removal and Replacement of Dispensing System2. Dispensing or Agitating Motor Agitator Agitating Motor Dispensing Motor Dispensing Auger 6 Install the new motorA. Cleaning and Sanitizing Instructions VI. Cleaning and Maintenanceb Cleaning Procedure a Cleaning Solution1. Water System c Cleaning and Sanitizing Procedure c Sanitizing Solutiond Sanitizing Procedure - Following Cleaning Procedure b Sanitizing Solution3 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