Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki DCM-500BWH-OS service manual Low Water Safety

Models: DCM-500BWH-OS

1 69

Download 69 pages 57.62 Kb

Page 30

6. Low Water Safety

6. Low Water Safety

Upper float switch fails to close within 90 seconds after the lower float switch opens, the 150 second shutdown sequence begins. The inlet water valve remains open until the upper float switch closes.

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

30

Image 30

Hoshizaki DCM-500BWH-OS service manual Low Water Safety

Contents

Cubelet Icemaker / Dispenser Models DCM-500BAH DCM-500BAH-OS HoshizakiHoshizaki America, IncHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Phone 1-800-233-1940 Technical Service 770 487-2331 FaxComplete and detailed explanation of the problem Attn Hoshizaki Technical Support DepartmentCONTENTS C. Diagnostic Charts IV. Service DiagnosisA. Diagnostic Procedure V. Removal and Replacement of ComponentsI. Specifications A. Icemaker 1. DCM-500BAH90/70F 2. DCM-500BAH-OSSHAPE OF ICE Spare Fuse3. DCM-500BWH 4. DCM-500BWH-OS II. General Information A. Construction 1. DCM-500BAH-OSInlet Water Valve Float Switch Reservoir Control Box Power Switch 2. DCM-500BWH-OSEvaporator Assembly Door Switch Gear Motor Control Switch Dispense Mode SwitchB. Ice Making Unit 1. DCM-500BAH-OS, DCM-500BWH-OS2. Ice Purge Cycle 60 seconds C. Sequence of Operation1. Fill Cycle 3. Freeze Cycle1. Startup 2. Shutdown & Restart 3. 12 Hour Drain Cycle Shutdown & RestartD. Control Board 1. Control Board Layout a DCM-500BAH, DCM-500BWH Control BoardPart Number 2A1592-01 b DCM-500BAH-OS, DCM-500BWH-OS Control BoardPart Number 2A2649-01 2. Features a LED Lightsa Power Supply 3. Controls and Adjustments a Portion Control4. Control Board Check Procedure b Ice Making Componentsc Dispensing Components DCM-500BAH, DCM-500BWH Spring Retainer Clip Magnet towards top Lower Float white E. Float SwitchRed upper Black common Blue lower Magnet towards top Upper Float blue Plastic Retainer ClipEvaporator Overflow Gear Motor Fan Air-Cooled Condenser Access Valve III. Technical Information A. Water Circuit and Refrigeration CircuitInlet Water Valve Water Supply Float Switch Water Level Reservoir Water Valve High Pressure Switch Compressor Access ValveWater Valve High Pressure Switch Access Compressor Valve Float SwitchWater-Cooled Condenser Water Supply Out Water Regulating Valve Access 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-Cooled ModelC. Sequence of Electrical Circuit - Ice Making 1. Fill CycleDCM-500BAH 2. Ice Purge CycleWIRE COLOR CODE DCM-500BWHCompressor and fan motor start 60 seconds after gear motor starts WIRE COLOR CODE3. Freeze Cycle 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 E. Performance Data 1. DCM-500BAH-OS1. The data without *marks should be used for reference only 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 ProductionProblem Possible CauseRemedy Problem Possible CauseRemedy Problem 2. Low Ice ProductionProblem Possible CausePossible Cause 3. OtherProblem RemedyPossible Cause 4. DispensingProblem Remedy5. Opti Serve OS Sensors 5c. Water Dispensing 5a. Ice Dispensing Continuous Mode5b. Ice Dispensing Portion Mode K5 Pin 3 W/BK1. 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 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 Evaporator8 Remove the evaporator bracket and disconnect the water hoses 4 Recover the refrigerant and store it in an approved container3 Remove the apron panel, then remove the left side panel 9 Disconnect the inlet and outlet tubing5b. Lower Housing Gear Motor/Drain Pan Bolts and Washers Gear Motor Bracket Gear Motor 6. Removal and Replacement of Gear MotorGear Motor Cover Screws Gear Motor Cover 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 ValveL. Removal and Replacement of Dispensing System 1. Dispensing Auger and Agitator2. Dispensing or Agitating Motor 6 Install the new motor Agitator Agitating Motor Dispensing Motor Dispensing AugerVI. Cleaning and Maintenance A. Cleaning and Sanitizing Instructionsa Cleaning Solution b Cleaning Procedure1. Water System b Sanitizing Solution c Sanitizing Solutiond Sanitizing Procedure - Following Cleaning Procedure 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