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Models
KM-350MAJ, MWJ
KM-520MAJ, MWJ, MRJ
KM-660MAJ, MWJ, MRJ
Modular Crescent Cuber
Service Manual
Number: 73230
Issued: 10-29-2018
Revised: 2-4-2019
hoshizakiamerica.com
2
WARNING
Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizaki.com. No service should be undertaken until
the technician has thoroughly read this Service Manual. Failure to service and
maintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage. Proper installation is the
responsibility of the installer. Product failure or property damage due to improper
installation is not covered under warranty.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
service of the appliance.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, send an e-mail message, or write to the Hoshizaki Technical
Support Department for assistance.
Phone: 1-800-233-1940; (770) 487-2331
Fax: 1-800-843-1056; (770) 487-3360
E-mail: techsupport@hoshizaki.com
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
3
CONTENTS
Important Safety Information 5 .................................................................................................
I. Construction and Water/Refrigeration Circuit Diagram 7 .......................................................
A. Construction 7 ..................................................................................................................
1. Air-Cooled Models (MAJ) 7 .........................................................................................
2. Water-Cooled Models (MWJ) 8 ...................................................................................
3. Remote Models (MRJ) 9 .............................................................................................
B. Water/Refrigeration Circuit Diagram ............................................................................ 10
1. Air-Cooled Models (MAJ) ....................................................................................... 10
2. Water-Cooled Models (MWJ) ..................................................................................11
3. Remote Models (MRJ) ........................................................................................... 12
II. Sequence of Operation and Service Diagnosis ............................................................... 13
A. Sequence of Operation Flow Chart ............................................................................. 13
1. Operation Flow Chart ............................................................................................ 13
2. Shutdown Flow Chart ............................................................................................ 14
3. Freeze-Time Correction Chart ............................................................................... 15
B. Service Diagnosis ....................................................................................................... 16
C. Freeze-Time Correction Cycle (90 min.) (CB: 2A8242-01) 22 ..........................................
D. Control Board Check 24 ...................................................................................................
E. Bin Control Check and Adjustment 25 ..............................................................................
F. Float Switch Check and Cleaning 28 ................................................................................
G. Thermistor Check ........................................................................................................ 30
H. Control Switch 30 .............................................................................................................
I. Mode Switch 30 .................................................................................................................
J. Diagnostic Tables ......................................................................................................... 31
K. Freeze-Up Check List 35 ..................................................................................................
III. Controls and Adjustments 36 ...............................................................................................
A. Control Board Layout 37 ..................................................................................................
B. LED Lights and Audible Alarm Safeties 38 .......................................................................
C. Settings and Adjustments 39 ............................................................................................
1. Default Dip Switch Settings 39 ....................................................................................
2. Harvest Time (S4 dip switch 1 & 2)........................................................................ 40
3. Pump-Out Time/Harvest Time During Pump-Out (S4 dip switch 3 & 4) 40 .................
4. Pump-Out Frequency Control (S4 dip switch 5) 41 .....................................................
5. Harvest Pump Time (Harvest Assist) (S4 dip switch 6) 41 .........................................
6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7) 42 ..
7. Factory Use (S4 dip switch 8)................................................................................. 42
8. Freeze Timer (S4 dip switch 9 & 10) 43 ......................................................................
9. Pump-Out Pump Motor Direction (S5 dip switch 1) 43 ...............................................
10. Rell Counter (S5 dip switch 2 and 3) 44 ..................................................................
11. Minimum Harvest Time (S5 dip switch 4) 44 .............................................................
12. Anti-Slush (S5 dip switch 5) 44 .................................................................................
IMPORTANT
This manual should be read carefully before the appliance is serviced. Read
the warnings and guidelines contained in this manual carefully as they provide
essential information for the continued safe use, service, and maintenance of the
appliance. Retain this manual for any further reference that may be necessary.
Produktspecifikationer
| Varumärke: | Hoshizaki |
| Kategori: | Ismaskin |
| Modell: | KM-520MAJ |
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