Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-1301SAH/3, SRH/3 B. Wiring Diagrams, a KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SH

Models: SRH/3 KM-1900SAH/3 SRH3 KM-2500SWH3 SRH3 KMH-2000SWH/3 SWH/3 KM-1301SAH/3 SWH3-M KM-1601SAH/3 SRH/3 KM-1400SWH-M SRH/3 KM-2100SWH3 SRH/3

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B. Wiring Diagrams

B. Wiring Diagrams

1. Diagrams without Harvest Pump Timer Relays ("E" and "G" Control Boards)

a) KM-1601SWH, KM-1601SRH, KM-1900S_H, KMH-2000S_H		Pressure-High*Switch	ModelCooled-WaterAir and Remote Model		PSIG284±22327±22 PSIG
ControlTransformer	Output10.5V at 115V	Pressure-High*Switch	ModelCooled-WaterAir and Remote Model	384±22	PSIG284±22327±22 PSIG
				PSIG 22
				412±
				0
				PSIG
				0
				Cut-out	Cut-in
	*
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Hoshizaki KM-1301SAH/3, SRH/3, SWH/3 B. Wiring Diagrams, Diagrams without Harvest Pump Timer Relays E and G Control Boards

Contents

Stackable Crescent Cuber Models SERVICE MANUALHoshizakiHoshizaki America, Inc E-mail techsupport@hoshizaki.com HOSHIZAKI AMERICA, INC Complete and detailed explanation of the problemPhone 1-800-233-1940 770 Fax 1-800-843-1056 618 Highway 74 South Peachtree City, GACONTENTS a E and G Control Board without Harvest Pump Timer Operation C. Settings and Adjustments1. Default Dip Switch Settings b G Control Board with Harvest Pump Timer Operation23. KM-1900SRH with URC-21F serious injury Important Safety InformationIndicates a hazardous situation which could result in death or Indicates a situation which could result in damage to theWARNING, continued Additional Warning for Remote Models1. Air-Cooled Models SAH/3 I. Construction and Water/Refrigeration Circuit DiagramA. KM Construction Model Shown KM-1301SAH32. Water-Cooled Models SWH/3/-M Model Shown KM-1301SWH33. Remote Models SRH/3 Note KM-2500SRH3 Includes Headmaster C.P.R Model Shown KM-1301SRH3Model Shown KMH-2000SWH3 B. KMH Construction1. Water-Cooled Models SWH/3 Model Shown KMH-2000SWH3Model Shown KMH-2000SRH3 2. Remote Models SRH/3Model Shown KMH-2000SRH3 1. Air-Cooled Models SAH/3 DiagramC. Water/Refrigeration Circuit Water TankWater Regulating Valve Water-Cooled Models SWH/3/-MWater Tank Condenser3a. Remote Models SRH/3 Except KM-2500SRH3Condenser Unit with Headmaster Water TankFreeze WaterTank Pump-OutE and G Control Board without Harvest Pump Timer Operation Flow Chart A. Sequence of Operation Flow ChartII. Sequence of Operation and Service Diagnosis Components Energized when the Control Switch is in the WASH Position2. G Control Board with Harvest Pump Timer Operation G Control Board with Harvest Pump Timer Operation Flow ChartComponents Energized when the Control Switch is in the WASH Position B. Service Diagnosis 1. E and G Control Board without Harvest Pump Timer Diagnosis d WRV Diagnosis Confirm WRV is not leaking by For LLV check coil voltage and continuity After 11th freeze cycle 9 Shutdown E and G Control Board 2. G Control Board with Harvest Pump Timer Diagnosis 50 sec. before harvest terminates, PM energizes. See step 5b below d WRV Diagnosis Confirm WRV is not leaking byR and neutral W, check PM capacitor and motor winding continuity For LLV, check coil voltage and continuity 7 Pump-Out Cycle - LEDs 1, 3, and 2 are on 10/20 second pump-out. Timing of the first pump-out is determined by S4 dip switch 5 & 6. See the table below 9 Shutdown G Control Board C. Control Board Check D. Bin Control Check E. Float Switch Check and Cleaning 1. Float Switch CheckVent Flush Shaft Float Switch Housing Float Retainer Rod Rubber Boot 2. Float Switch Cleaningand Hose Cable Tie F. Thermistor CheckThermistor Lead Foam Insulation1. No Ice Production G. Diagnostic TablesNo Ice Production - Possible Cause Freeze-Up - Possible Cause 2. Freeze-UpNo Ice Production - Possible Cause Harvest CycleFreeze Cycle 3. Low Ice ProductionFreeze-Up - Possible Cause Low Ice Production - Possible CauseLow Ice Production - Possible Cause Long Freeze CycleIII. Controls and Adjustments 1. E Control Board A. Control Board LayoutE Control Board E Control BoardG Control Board G Control Board2. G Control Board Part Number 2A3792-01B. LED Lights and Audible Alarm Safeties 1. E Control Board2. G Control Board 1. Default Dip Switch Settings C. Settings and Adjustmentsa E and G Control Board without Harvest Pump Timer Operation S4 Dip Switch E and G Control Boards b G Control Board with Harvest Pump Timer Operationc G Control Board S5 Dip Switch S5 Dip Switch3. Pump-Out Timer S4 dip switch 3 4. Pump-Out Frequency Control S4 dip switch 5 a Bin Control Selector E Control Board6. Factory Use S4 dip switch b Harvest Pump Timer G Control Board7. Freeze Timer S4 dip switch 9 8. Float Switch Selector S5 dip switch 1 G Control Board D. Control Switch9. Refill Counter S5 dip switch 2 through 5 G Control Board A. Refrigeration Circuit Service Information IV. Refrigeration Circuit and Component Service Information1. Refrigerant Recovery 2. Brazing 3. Evacuation and Recharge R-404A4 Close the low-side valve and high-side valve on the gauge manifold B. Component Service Information ComponentC. Water Regulating Valve Adjustment water-cooled models V. Maintenance 1. Remove the water from the icemaker water supply line VI. Preparing the Icemaker for Periods of Non-Use2. Drain the water tank 6 Close the drain valves VII. Disposal VIII. Technical Information A. Specification and Performance Data1. KM-1301SAH 2. KM-1301SAH3 1323 3. KM-1301SWH1318 17404. KM-1301SWH3 5. KM-1301SRH with URC-14F 6. KM-1301SRH3 with URC-14F 7. KM-1400SWH-M 8. KM-1400SWH3-M PERFORMANCE DATA SHEET 9. KM-1601SAHSPECIFICATION SHEET 1462PERFORMANCE DATA SHEET 10. KM-1601SAH3SPECIFICATION SHEET 1456SPECIFICATION SHEET 11. KM-1601SWHPERFORMANCE DATA SHEET 12. KM-1601SWH3 13. KM-1601SRH with URC-21F Auxiliary Codes R-0, R-1, and some S-1 SPECIFICATION SHEET PERFORMANCE DATA SHEET15. KM-1601SRH with URC-22F Auxiliary Codes S-2 and Later SPECIFICATION SHEET 16. KM-1601SRH3 with URC-21F Auxiliary Codes R-0, R-1, and some S-1PERFORMANCE DATA SHEET SPECIFICATION SHEET PERFORMANCE DATA SHEETPERFORMANCE DATA SHEET 18. KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and LaterSPECIFICATION SHEET 1530PERFORMANCE DATA SHEET 19. KM-1900SAHSPECIFICATION SHEET 2480PERFORMANCE DATA SHEET 20. KM-1900SAH3SPECIFICATION SHEET 1859PERFORMANCE DATA SHEET 21. KM-1900SWHSPECIFICATION SHEET 1876PERFORMANCE DATA SHEET 22. KM-1900SWH3SPECIFICATION SHEET 1814PERFORMANCE DATA SHEET 23. KM-1900SRH with URC-21FSPECIFICATION SHEET 2630PERFORMANCE DATA SHEET 24. KM-1900SRH with URC-22FSPECIFICATION SHEET 1857PERFORMANCE DATA SHEET 25. KM-1900SRH3 with URC-21FSPECIFICATION SHEET 1965SPECIFICATION SHEET 26. KM-1900SRH3 with URC-22FPERFORMANCE DATA SHEET PERFORMANCE DATA SHEET 27. KM-2100SWH3SPECIFICATION SHEET 2096PERFORMANCE DATA SHEET 28. KM-2100SRH3 with URC-22FSPECIFICATION SHEET 3210PERFORMANCE DATA SHEET 29. KM-2500SWH3SPECIFICATION SHEET 2408PERFORMANCE DATA SHEET 30. KM-2500SRH3 with URC-23FSPECIFICATION SHEET 3780PERFORMANCE DATA SHEET 31. KMH-2000SWHSPECIFICATION SHEET 182132. KMH-2000SWH3 PERFORMANCE DATA SHEET 33. KMH-2000SRH with URC-22FSPECIFICATION SHEET 1944SPECIFICATION SHEET 34. KMH-2000SRH3 with URC-22FPERFORMANCE DATA SHEET 1. Diagrams without Harvest Pump Timer Relays E and G Control Boards B. Wiring Diagramsa KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SH b KM-1601SWH3, KM-1601SRH3, KM-1900SH3, KM-2100SH3 KM-2500SH3, KMH-2000SH3SwitchPressure-High 384±22T-0, U-0 2. Diagrams with Harvest Pump Timer Relays G Control Boarda KM-1301SH Auxiliary Code T-0, U-0 Auxiliary Codeb KM-1301SH3 Auxiliary Code T-0, U-0 c KM-1301SH Auxiliary Code U-1 and Later and KM-1601SAH d KM-1301SH3 Auxiliary Code U-1 and Later and KM-1601SAH3 Control Transformer Output 10.5V at e KM-1400SWH-MHigh-Pressure Switch Water-Cooled ModelControl Transformer High-Pressure Switchf KM-1400SWH3-M Output 10.5V at