Hoshizaki KM-630MWH, KM-630MRH, KM-630MAH Controls and Adjustments, For Models with Thermostat

Page 21

[d] CONTROLS AND ADJUSTMENTS

The Dip Switch is factory-adjusted to the following positions:

FOR MODELS WITH MECHANICAL BIN CONTROL:

DIP SWITCH NO.

1

2

3

4

5

6

7

8

9

10

KM-630MAH

OFF

OFF

OFF

OFF

ON

ON

ON

OFF

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

KM-630MWH

OFF

OFF

OFF

OFF

ON

ON

ON

OFF

OFF

OFF

KM-630MRH

OFF

OFF

OFF

OFF

ON

ON

ON

OFF

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

FOR MODELS WITH THERMOSTAT :

DIP SWITCH NO.

1

2

3

4

5

6

7

8

9

10

KM-630MAH

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

KM-630MWH

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

OFF

OFF

KM-630MRH

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

Switch Nos. 1 and 2:

Used for adjustment of the Defrost Timer.

The Defrost Timer starts counting when the Thermistor reads a certain temperature at the Evaporator outlet.

Switch Nos. 3 and 4:

Used for adjustment of the Drain Timer.

When a freeze cycle is completed, the Pump Motor stops, and the icemaker resumes operation in 2 seconds. Then the Pump Motor drains the Water Tank for the time determined by the Drain Timer. The Drain Timer also determines the time to restrain completion of a defrost cycle, i.e. the minimum defrost time.

Switch Nos. 5 and 6:

Used for adjustment of the Drain Counter.

The Pump Motor drains the Water Tank at the frequency determined by the Drain Counter.

Switch No. 7:

Used only on models with mechanical bin control. Dip Switch should be set “ON”. (Models with bin thermostat, Switch No. 7 should be set in the “OFF” position.)

Switch No. 8:

Used only for checking the Controller Board. Usually set in OFF position.

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Contents KM-630MAH KM-630MWH KM-630MRH Hoshizaki AMERICA, INC Contents Maintenance Water TEMP. F Specifications KM-630MAH2a. KM-630MWH Serial #L00001D M20270B 2b. KM-630MWH Serial #M20301E KM-630MRH URC-6F Condenser UnitSpecifications KM-630MAH II. General Information ConstructionKM-630MWH KM-630MRH Controller Board Features of Control Products E Controller BoardSOLID-STATE Control Controller BoardPage Minute Fill Cycle Beep every 3 sec. = High Evaporator Temperature 127 FHarvest Cycle Freeze CycleControl Products HOS-001A Board Important Water Valve opening is limited to 6 minutes Sequence 1st Cycle2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain For Models with Thermostat Controls and AdjustmentsPage Setting Time Models with Thermostat Checking the Controller Board Models with Mechanical BIN ControlProximity Switch Mechanical BIN ControlExplanation of Operation Troubleshooting Mechanical BIN Control only KM-630MAH KM-630MWH KM-630MRH Wiring Diagrams Page B1 KM-630MRH with auxiliary codes L-0, M-0, M-1 B2 KM-630MRH with auxiliary codes M-2 and after Timing Chart Page 157 Performance DataPressure Drop of Cooling Water Line B1 KM-630MWH Serial #L00001D M20270BB2 KM-630MWH Serial #M20301E 603 Problem Possible Cause Remedy IV. Service Diagnosis 1. no ICE ProductionController Board Problem Possible Cause Remedy Thermistor Evaporator is Frozen UPLOW ICE Production Abnormal ICEOthers Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404ABrazing Removal and Replacement of Compressor Important Page Removal and Replacement of Expansion Valve Removal and Replacement of DrierRemoval and Replacement of HOT GAS Valve and Line Valve Page Removal and Replacement of Evaporator Important Page Adjustment of Water Regulating Valve WATER-COOLED Model only Page Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Pump Motor Removal and Replacement of Water ValveRemoval and Replacement of Spray Tubes Preparing the Icemaker for Long Storage VI. Cleaning and Maintenance InstructionsPage Cleaning and Sanitizing Procedures Cleaning Procedure Page Sanitizing Procedure Maintenance