Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki DCM 300BAH(-OS) service manual Icemaking Unit

Models: DCM 300BAH(-OS)

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2. Icemaking Unit

2. Icemaking Unit

	Extruding Head and	Cutter
	Extruding Head and
	Upper Bearing
		Seal Bolts and Washers
	Auger	Evaporator
		Evaporator
	Mechanical Seal	Socket Head Cap Screw
	Mechanical Seal	and Split Lock Washer
		and Split Lock Washer
	O-Ring	Housing and Lower
	O-Ring	Bearing
	Spline Coupling	Hex Bolt and Washer
		Hex Bolt and Washer
		Gear Motor
		Socket Head Cap Screw
		and Split Lock Washer
		9

Image 9

Hoshizaki DCM 300BAH(-OS) service manual Icemaking Unit

Contents

HoshizakiHoshizaki America, Inc Phone 1-800-233-1940 770 Fax Complete and detailed explanation of the problem618 Highway 74 South Peachtree City, GA Attn Hoshizaki Technical Support DepartmentCONTENTS B. Diagnostic Procedure IV. Service DiagnosisE. Float Switch Check and Cleaning 1. Float Switch CheckIndicates a hazardous situation which could result in death or Important Safety Informationserious injury Indicates a situation which could result in damage to theDo not place objects on top of the icemaker 1. DCM-300BAH-OS I. Specifications A. Icemaker1. Icemaker II. General Information A. Construction2. Icemaking Unit 1. Sequence Cycles and Shutdown B. Sequence of Operationa Fill Cycle b Ice Purge CycleSequence Flow Chart DCM-PB and DCM-OS Control Board Sequence Flow Chart DCM-300BAH-OSC. Control Board 1. Control Board Layout DCM-PB Push Button Model Control Boarda DCM-300BAH Control Boardb DCM-300BAH-OS DCM-OS Opti-Serve Model Control BoardControl Board Part Number 2A2649-01D. Power Switch, Control Switch, and Dispense Mode Switch 1. Power Switch2. LED Lights and Components 3. Dispense Mode Switch 2. Control Switcha ICE b DRAINInlet Water Valve Water Supply Float Switch III. Technical Information A. Water Circuit and Refrigeration CircuitReservoir Overflow Fan Motor Condenser Access Valve Water Level Evaporator Gear Motor High-Pressure Switch1. DCM-300BAH B. Wiring DiagramsHigh-Pressure Switch 2. DCM-300BAH-OSCut-out 412± 21 0 PSIG1. DCM-300BAH-OS C. Performance DataIV. Service Diagnosis B. Diagnostic ProcedureA. Ice Production Check Page Page check DV solenoid continuity Page 4 5VDC Output Checks C. Control Board CheckIce Dispense Controls b Opti-Serve Model - ICE and AM LEDs are on Water Dispense Switch/Water Dispense Sensor Page D. Bin Control Check 1. Float Switch Check E. Float Switch Check and Cleaning2. Float Switch Cleaning 1. No Ice Production F. Diagnostic ChartsShutdown Ice Purge CycleFreeze Cycle RefillIce Dispense Push Button 2. Ice/Water DispenseIce Dispense Opti-Serve Water Dispense Push Button3a. Ice Dispense Continuous 3. Opti-Serve OS Sensors3b. Ice Dispense Portion 3c. Water DispenseA. Service for Refrigerant Lines V. Removal and Replacement of Components1. Refrigerant Recovery 2. Brazing3. Evacuation and Recharge R-404A B. Important Notes for Component Replacement Evaporator Assembly 1. Upper Bearing Wear Check 2. Removal and Replacement of Extruding Head4. Removal and Replacement of Evaporator 3. Removal and Replacement of Auger3 Remove the apron panel, then remove the left side panel 4 Recover the refrigerant and store it in an approved container7 Remove the evaporator bracket and disconnect the water hoses 8 Disconnect the inlet and outlet tubing5. Removal and Replacement of Mechanical Seal and Lower Housing 5b. Lower Housing5a. Mechanical Seal 6. Removal and Replacement of Gear Motor 8. Dispense or Agitating Motor 7. Dispense Auger and AgitatorVI. Cleaning and Maintenance a Cleaning Solution A. Cleaning and Sanitizing Instructionsb Cleaning Procedure 1. Water Systemd Sanitizing Procedure - Following Cleaning Procedure c Sanitizing Solutionc Cleaning and Sanitizing Procedure b Sanitizing Solution2. Dispense Components a Cleaning SolutionWater Dispense Nozzle Ice Dispense Spout Spout Cover Maintenance Schedule B. MaintenanceFrequency AreaC. Preparing the Icemaker for Periods of Non-Use VII. Disposal