DCM-751BWH-OS | Hoshizaki dcm-75ibah specs

2. DCM-751BWH(-OS)

Spout B

Control Box

Power Switch

Agitating Motor (L)

CONTROL	4A1038-014
CONTROL
ICE
OFF	DISPENSE MODE
	PORTION
DRAIN	CONTINUOUS
	CONTINUOUS

Storage Bin

Bin Control Switch

Agitator (L)

Agitator (R)

Dispense Auger

Agitating Motor (R)

Dispensing Motor

Compressor

Spout A

Inlet Water Valve

	Float Switch
Evaporator Assembly
Reservoir
Thermostatic
Expansion Valve
Gear Motor	Dispense Water Valve
Gear Motor
	Shutter Assembly
Water Regulating Valve
Water-Cooled Condenser	Spout Cover
	Spout Cover
Drain Valve	Safety Switch (Door)

8

Image 8

Hoshizaki dcm-75ibah service manual DCM-751BWH-OS

Contents

DCM-751BAH-OS DCM-751BWH-OS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Construction and Water/Refrigeration Circuit Diagrams DCM-751BAH-OS DCM-751BWH-OS Ice Making Unit Water/Refrigeration Circuit Diagrams Spout Inlet Water Valve Water Supply Float Control Board Sequence Flow Chart DCM-751BH-OS ChartOperation Diagnosis Ice Production Check Service DiagnosisDiagnostic Procedure Page Page Page Page Control Board Check 5VDC CB K9 Connector Component Pin # Wire Color 5VDC CB K9 Connector See FigHigh-Pressure Switch HPS 5VDC CB K8 Connector See Fig 5VDC CB K8 Connector Component Pin # Wire ColorGear Motor Protect Relay Gmpr Bin Control BC 5VDC 0VDC Portion Signal #5 R Red K4 pin closest 5VDC Power Supply #3 W/BK 24VAC CB K2 Connector Connector Pin # Wire Color Neutral LBU Open Closed Bin Control Check Float Switch Cleaning Float Switch Check and CleaningFloat Switch Check Page No Ice Production Possible Cause Startup Diagnostic TablesNo Ice Production No Ice Production Possible Cause Shutdown Ice/Water Dispensing Ice Dispense-Push ButtonIce Dispense-Opti-Serve Water Dispense-Push Button III. Controls and Adjustments Control Board Layout DCM-751BH K2 Connector Drain Valve #10 W/BU DCM-751BH-OS LED Lights and Audible Alarm Safeties No. of Beeps Type of Alarm Reset Options Every 5 secIcemaking Sequence Sequence Step Energized Components Min Max Settings and Adjustments Default Dip Switch SettingsInfrared Sensor Shutdown Delay S1 dip switch 1, 2 Drain Frequency Control S1 dip switch Continuous Dispensing Timer S1 dip switch 5 Bin Control Selector S1 dip switchBin Control Shutdown Delay S1 dip switch Factory Use S1 Dip Switch 9 Power Switch, Control Switch, and Dispense Mode Switch ICEOFF Drain Portion Dispense Mode SwitchContinuous IV. Removal and Replacement of Components Service for Refrigerant Lines Evacuation and Recharge R-404A Refrigerant RecoveryBrazing Important Notes for Component Replacement Evaporator Assembly Components. See Fig Evaporator Assembly Icemaking Unit Upper Bearing Wear Check Removal and Replacement of Extruding Head Removal and Replacement of Auger Removal and Replacement of Evaporator 5b. Lower Housing Removal and Replacement of Gear Motor Dispense and Agitating Motors Dispense ComponentsDispense Auger and Agitator Frequency Area Task MaintenanceMaintenance Schedule VI. Preparing the Appliance for Periods of Non-Use Page VII. Disposal VIII. Technical Information Specification Sheets DCM-751BAH Design without prior DCM-751BWH Potable Water WATER-COOLED Condenser 779 758 Reference without *marks 738 719 Performance Data ICE Production 800 363 Wiring Diagrams DCM-751BH-OS