Hoshizaki dcm-75ibah service manual 800 363

Page 59

2. DCM-751BWH(-OS)

APPROXIMATE

Ambient

 

 

 

Water Temp. (°F)

 

 

 

ICE PRODUCTION

Temp. (°F)

 

50

 

70

 

90

PER 24 HR.

70

800

 

363

779

 

353

758

 

344

 

80

738

 

335

719

 

326

700

 

317

 

90

681

 

309

685

 

311

646

 

293

lb./day kg/day

100

629

 

285

612

 

278

563

 

255

APPROXIMATE ELECTRIC

70

1274

 

--

1275

 

--

1276

 

--

CONSUMPTION

80

1277

 

--

1278

 

--

1279

 

--

 

90

1280

 

--

1281

 

--

1284

 

--

watts

100

1286

 

--

1289

 

--

1291

 

--

APPROXIMATE WATER

70

474

 

1.79

513

 

1.94

686

 

2.60

CONSUMPTION PER 24 HR.

80

504

 

1.91

565

 

2.14

804

 

3.04

 

90

513

 

1.94

609

 

2.31

823

 

3.11

gal./day l/day

100

623

 

2.36

659

 

2.49

1019

 

3.86

EVAPORATOR OUTLET TEMP.

70

12

 

-11

12

 

-11

12

 

-11

 

80

12

 

-11

12

 

-11

12

 

-11

 

90

12

 

-11

12

 

-11

13

 

-10

°F °C

100

13

 

-10

13

 

-10

13

 

-10

HEAD PRESSURE

70

258

 

18.1

258

 

18.1

258

 

18.1

 

80

259

 

18.2

259

 

18.2

259

 

18.2

 

90

260

 

18.3

260

 

18.3

260

 

18.3

PSIG kg/cm²G

100

257

 

18.1

257

 

18.1

257

 

18.1

SUCTION PRESSURE

70

32

 

2.3

32

 

2.3

32

 

2.3

 

80

33

 

2.3

33

 

2.3

33

 

2.3

 

90

33

 

2.3

33

 

2.3

33

 

2.3

PSIG kg/cm²G

100

35

 

2.4

35

 

2.4

35

 

2.4

WATER FLOW FOR CONDENSER

20gal/h (AT 90°F /WT 70°F)

PRESSURE DROP OF COOLING WATER LINE

Less than 7 PSIG

HEAT OF REJECTION FROM CONDENSER

8,100 BTU/h (AT 90°F /WT 70°F)

HEAT OF REJECTION FROM COMPRESSOR

1,300 BTU/h (AT 90°F /WT 70°F)

HEAT OF REJECTION FROM GEAR MOTOR

700 BTU/h (AT 90°F /WT 70°F)

Note:

1.The data not in bold should be used for reference only.

2.We reserve the right to make changes in specifications and design without prior notice.

59

Image 59
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 OperationIce 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 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 Cleaning Float Switch Check and CleaningFloat Switch Check Page No Ice Production Possible Cause Startup Diagnostic TablesNo Ice Production 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 OFFPortion Dispense Mode SwitchContinuous Service for Refrigerant Lines IV. Removal and Replacement of ComponentsEvacuation and Recharge R-404A Refrigerant RecoveryBrazing 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 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 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