Hoshizaki dcm-75ibah service manual Design without prior

Page 55

2. DCM-751BAH-OS

AC SUPPLY VOLTAGE

115/60/1

 

 

 

 

 

 

 

 

COMPRESSOR

115 V

77 LRA

 

 

11.0 RLA

GEAR MOTOR

115 V

3.0 FLA

 

 

1/4 HP

FAN MOTOR

115 V

1.0 FLA

 

 

50 W

AGITATING MOTOR

120 V

1.8 FLA (TOTAL)

110 W (TOTAL)

DISPENSING MOTOR

115 V

0.9 FLA

 

 

55 W

OTHER

115 V

0.6 A

 

 

 

 

 

MAXIMUM FUSE SIZE

20 A

 

 

 

 

 

 

 

MAX. HACR BREAKER (USA ONLY)

20 A

 

 

 

 

 

 

 

MAX. CIRC. BREAKER (CANADA ONLY)

20 A

 

 

 

 

 

 

 

MINIMUM CIRCUIT AMPACITY

20 A

 

 

 

 

 

 

 

APPROXIMATE ICE PRODUCTION

Ambient

 

WATER TEMP. (°F)

 

 

PER 24 HR.

Temp.(°F)

 

50

 

70

 

90

 

 

lbs./day (kg/day)

70

 

*801 (363)

 

757 (343)

 

725 (329)

 

 

Reference without *marks

80

 

695 (315)

 

666 (302)

 

639 (290)

 

 

 

90

 

612 (278)

 

*583 (265)

 

562 (255)

 

 

SHAPE OF ICE

100

 

539 (245)

 

517 (234)

 

*490 (222)

 

 

Cubelet

 

 

 

 

 

 

 

 

ICE HARDNESS FACTOR

90% (90/70°F, Conductivity 200 µs/cm)

APPROXIMATE STORAGE CAPACITY

95 lbs.

 

 

 

 

 

 

 

ELECTRIC & WATER CONSUMPTION

90/70°F

 

 

70/50°F

 

 

 

ELECTRIC W (kWH/100 lbs.)

1388 (5.94)

 

 

 

1292 (4.08)

 

 

 

 

POTABLE WATER

70 (12.0)

 

 

 

96 (12.0)

 

 

 

 

gal./24HR (gal./100 lbs.)

 

 

 

 

 

 

 

 

 

EXTERIOR DIMENSIONS (WxDxH)

34-1/16" x 28-1/2" x 48-1/16" (865 x 723 x 1221 mm) (No legs)

 

EXTERIOR FINISH

Stainless Steel; Galvanized Steel (Rear)

WEIGHT

Net 300 lbs. ( 136 kg ), Shipping 345 lbs. ( 156 kg )

CONNECTIONS - ELECTRIC

Permanent Connection

 

 

 

 

 

- WATER SUPPLY

Inlet 1/2" FPT

 

 

 

 

 

- DRAIN

Drip Tray Drain Outlet 3/4" FPT

 

 

 

 

Storage Bin Drain Outlet 3/4" FPT

 

 

 

ICE MAKING SYSTEM

Auger Type

 

 

 

 

 

 

 

HARVESTING SYSTEM

Direct Driven Auger (1/4 HP Gear Motor)

ICE MAKING WATER CONTROL

Float Switch

 

 

 

 

 

 

 

DISPENSER CONTROL SYSTEM

Photoelectric Sensor (Infrared)

 

 

 

BIN CONTROL SYSTEM

Mechanical Bin Control and Timer

 

 

 

COMPRESSOR

Hermetic, Model RST61C1E-CFA-202

 

 

 

CONDENSER

Air-Cooled, Fin and Tube Type

 

 

 

EVAPORATOR

Copper Tube on Cylinder

 

 

 

 

 

REFRIGERANT CONTROL

Thermostatic Expansion Valve

 

 

 

REFRIGERANT CHARGE

R-404A, 1 lb. 10 oz. (737 g)

 

 

 

DESIGN PRESSURE

High 460 PSIG, Low 290 PSIG

 

 

 

CONTROL BOARD CIRCUIT PROTECTION

High Voltage Power Protect Relay

 

 

 

COMPRESSOR PROTECTION

Auto-Reset Internal Protector

 

 

 

GEAR MOTOR PROTECTION

Auto-Reset Internal Protector and Fuse (3A)

REFRIGERANT CIRCUIT PROTECTION

Auto-Reset High Pressure Switch

 

 

 

LOW WATER PROTECTION

Float Switch and Timer

 

 

 

 

 

ACCESSORIES - SUPPLIED

Spare Fuse (2-3A), Legs

 

 

 

 

 

- OPTIONAL

HS-5002, Apron kit when drip tray removed

OPERATING CONDITIONS

VOLTAGE RANGE

 

 

104-127VAC

 

 

AMBIENT TEMP.

 

 

45-100°F

 

WATER SUPPLY TEMP.

 

 

45-90°F

 

WATER SUPPLY PRESSURE

10-113 PSIG

 

Note: We reserve the right to make changes in specifications and

design without prior

notice.

 

 

 

 

 

 

 

 

 

55

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Contents DCM-751BAH-OS DCM-751BWH-OS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page DCM-751BAH-OS Construction and Water/Refrigeration Circuit DiagramsDCM-751BWH-OS Ice Making Unit Water/Refrigeration Circuit Diagrams Spout Inlet Water Valve Water Supply Float Diagnosis Control Board Sequence Flow Chart DCM-751BH-OSChart OperationDiagnostic Procedure Service DiagnosisIce Production Check Page Page Page Page Control Board Check High-Pressure Switch HPS 5VDC CB K9 Connector See Fig5VDC CB K9 Connector Component Pin # Wire Color Bin Control BC 5VDC CB K8 Connector See Fig5VDC CB K8 Connector Component Pin # Wire Color Gear Motor Protect Relay Gmpr5VDC 0VDC Portion Signal #5 R Red K4 pin closest 5VDC Power Supply #3 W/BK Connector Pin # Wire Color Neutral LBU Open Closed 24VAC CB K2 ConnectorBin Control Check Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Page No Ice Production Diagnostic TablesNo Ice Production Possible Cause Startup Shutdown No Ice Production Possible CauseWater Dispense-Push Button Ice/Water DispensingIce Dispense-Push Button Ice Dispense-Opti-ServeIII. Controls and Adjustments DCM-751BH Control Board LayoutDCM-751BH-OS K2 Connector Drain Valve #10 W/BUEnergized Components Min Max LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Reset Options Every 5 sec Icemaking Sequence Sequence StepDrain Frequency Control S1 dip switch Settings and AdjustmentsDefault Dip Switch Settings Infrared Sensor Shutdown Delay S1 dip switch 1, 2Factory Use S1 Dip Switch 9 Continuous Dispensing Timer S1 dip switch 5Bin Control Selector S1 dip switch Bin Control Shutdown Delay S1 dip switchDrain Power Switch, Control Switch, and Dispense Mode SwitchICE OFFContinuous Dispense Mode SwitchPortion Service for Refrigerant Lines IV. Removal and Replacement of ComponentsBrazing Refrigerant RecoveryEvacuation and Recharge R-404A Evaporator Assembly Components. See Fig Important Notes for Component ReplacementEvaporator Assembly Upper Bearing Wear Check Icemaking UnitRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator 5b. Lower Housing Removal and Replacement of Gear Motor Dispense Auger and Agitator Dispense ComponentsDispense and Agitating Motors Maintenance Schedule MaintenanceFrequency Area Task VI. Preparing the Appliance for Periods of Non-Use Page VII. Disposal DCM-751BAH VIII. Technical Information Specification SheetsDesign without prior Potable Water WATER-COOLED Condenser DCM-751BWH779 758 Reference without *marks 738 719 ICE Production Performance Data800 363 Wiring Diagrams DCM-751BH-OS
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