Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Time (S4 dip switch 1 & 2)
- 3. Pump-Out Time/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5)
- 5. Harvest Pump Time (Harvest Assist) (S4 dip switch 6)
- 6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)
- 7. Factory Use (S4 dip switch 8)
- 8. Freeze Timer (S4 dip switch 9 & 10)
- 9. Pump-Out Pump Motor Direction (S5 dip switch 1)
- 10. Refill Counter (S5 dip switch 2 and 3)
- 11. Minimum Harvest Time (S5 dip switch 4)
- 12. Anti-Slush (S5 dip switch 5)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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C. Settings and Adjustments
NOTICE
Dip switches are factory set. Failure to maintain factory settings may adversely
affect performance and warranty coverage. For more information, contact your
Hoshizaki Service Center.
1. Default Dip Switch Settings
The dip switches are factory-adjusted to the following positions:
S4 Dip Switch No. 1 2 3 4 5 6 7 8 9 10
KM-350MAJ, KM-350MWJ OFF OFF OFF ON ON OFF ON OFF ON ON
KM-520MAJ, KM-520MWJ, KM-520MRJ OFF OFF OFF OFF OFF OFF ON OFF ON ON
KM-660MAJ, KM-660MWJ, KM-660MRJ OFF OFF OFF OFF OFF OFF ON OFF ON ON
S5 Dip Switch (Do Not Adjust)
Dip Switch No.
1 2 3 4 5
All Models OFF OFF OFF OFF ON
Freeze Timer (9 & 10)
Pump-Out Frequency Control (5)
Pump-Out Time/Harvest Time During Pump-Out (3 & 4)
Harvest Time (1 & 2)
Factory Use (8)
Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (7)
(Do Not Adjust)
1 2 3 4 5 6 7 8 9 10
ON
S4 Dip Switch
1 2 3 4 5
ON
S5 Dip Switch
(Do Not Adjust)
Rell Counter (2 and 3)
Float Switch Selector (1)
Minimum Harvest Time (4)
Anti-Slush (5)
Harvest Pump Time (Harvest Assist) (6)
(Do Not Adjust)