Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki SRH/3 KM-1400SWH-M, SRH/3 KM-2100SWH3 B. KMH Construction, Water-Cooled Models SWH/3

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. KMH Construction

1. Water-Cooled Models (SWH/3)	Inlet Water Valve
	Inlet Water Valve
Spray Tubes	High-Side Service Valve

Thermostatic

Expansion

Valves

	Evaporator Assembly	Check Valves
		(refrigeration)
	Cleaning Valve
		Transformer Box
	Check Valve	(3 phase model)
	Check Valve
	(water)
	Water Pump
	Float Switch	Control Box
	Low-Side Service Valve	Control Switch
		Bin Control Thermostat
		Thermostatic Bin Control
		Brackets and Bulb Holder
	Model Shown: KMH-2000SWH3	Z Bracket Used for Hoshizaki B-1300,
	Model Shown: KMH-2000SWH3	B-1500, and Non-Hoshizaki Ice Stoarage Bin
		B-1500, and Non-Hoshizaki Ice Stoarage Bin

High-Pressure Switch

Junction Box
Water Supply Inlet
Hot Gas Valve
	Water Regulating Valve
Liquid Line Valve
Compressor
Drier
Model Shown: KMH-2000SWH3	Water-Cooled Condenser

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Hoshizaki SRH/3 KM-1400SWH-M, SRH/3 KM-2100SWH3 B. KMH Construction, Water-Cooled Models SWH/3, Model Shown KMH-2000SWH3

Contents

HoshizakiHoshizaki America, Inc SERVICE MANUALStackable Crescent Cuber Models 618 Highway 74 South Peachtree City, GA Complete and detailed explanation of the problemPhone 1-800-233-1940 770 Fax 1-800-843-1056 E-mail techsupport@hoshizaki.com HOSHIZAKI AMERICA, INCCONTENTS b G Control Board with Harvest Pump Timer Operation C. Settings and Adjustments1. Default Dip Switch Settings a E and G Control Board without Harvest Pump Timer Operation23. KM-1900SRH with URC-21F Indicates a situation which could result in damage to the Important Safety InformationIndicates a hazardous situation which could result in death or serious injuryAdditional Warning for Remote Models WARNING, continuedModel Shown KM-1301SAH3 I. Construction and Water/Refrigeration Circuit DiagramA. KM Construction 1. Air-Cooled Models SAH/3Model Shown KM-1301SWH3 2. Water-Cooled Models SWH/3/-MNote KM-2500SRH3 Includes Headmaster C.P.R Model Shown KM-1301SRH3 3. Remote Models SRH/3Model 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 Water Tank DiagramC. Water/Refrigeration Circuit 1. Air-Cooled Models SAH/3Condenser Water-Cooled Models SWH/3/-MWater Tank Water Regulating ValveWater Tank KM-2500SRH3Condenser Unit with Headmaster 3a. Remote Models SRH/3 ExceptPump-Out WaterTank FreezeComponents Energized when the Control Switch is in the WASH Position A. Sequence of Operation Flow ChartII. Sequence of Operation and Service Diagnosis E and G Control Board without Harvest Pump Timer Operation Flow ChartComponents Energized when the Control Switch is in the WASH Position G Control Board with Harvest Pump Timer Operation Flow Chart2. G Control Board with Harvest Pump Timer Operation 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 d WRV Diagnosis Confirm WRV is not leaking by 50 sec. before harvest terminates, PM energizes. See step 5b belowR 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 1. Float Switch Check E. Float Switch Check and Cleaningand Hose 2. Float Switch CleaningVent Flush Shaft Float Switch Housing Float Retainer Rod Rubber Boot Foam Insulation F. Thermistor CheckThermistor Lead Cable TieNo Ice Production - Possible Cause G. Diagnostic Tables1. No Ice Production Harvest Cycle 2. Freeze-UpNo Ice Production - Possible Cause Freeze-Up - Possible CauseLow Ice Production - Possible Cause 3. Low Ice ProductionFreeze-Up - Possible Cause Freeze CycleLong Freeze Cycle Low Ice Production - Possible CauseIII. Controls and Adjustments E Control Board A. Control Board LayoutE Control Board 1. E Control BoardPart Number 2A3792-01 G Control Board2. G Control Board G Control Board1. E Control Board B. LED Lights and Audible Alarm Safeties2. G Control Board a E and G Control Board without Harvest Pump Timer Operation C. Settings and Adjustments1. Default Dip Switch Settings S5 Dip Switch b G Control Board with Harvest Pump Timer Operationc G Control Board S5 Dip Switch S4 Dip Switch E and G Control Boards3. Pump-Out Timer S4 dip switch 3 a Bin Control Selector E Control Board 4. Pump-Out Frequency Control S4 dip switch 57. Freeze Timer S4 dip switch 9 b Harvest Pump Timer G Control Board6. Factory Use S4 dip switch 9. Refill Counter S5 dip switch 2 through 5 G Control Board D. Control Switch8. Float Switch Selector S5 dip switch 1 G Control Board 1. Refrigerant Recovery IV. Refrigeration Circuit and Component Service InformationA. Refrigeration Circuit Service Information 3. Evacuation and Recharge R-404A 2. Brazing4 Close the low-side valve and high-side valve on the gauge manifold Component B. Component Service InformationC. Water Regulating Valve Adjustment water-cooled models V. Maintenance 2. Drain the water tank VI. Preparing the Icemaker for Periods of Non-Use1. Remove the water from the icemaker water supply line 6 Close the drain valves VII. Disposal 1. KM-1301SAH A. Specification and Performance DataVIII. Technical Information 2. KM-1301SAH3 1740 3. KM-1301SWH1318 13234. KM-1301SWH3 5. KM-1301SRH with URC-14F 6. KM-1301SRH3 with URC-14F 7. KM-1400SWH-M 8. KM-1400SWH3-M 1462 9. KM-1601SAHSPECIFICATION SHEET PERFORMANCE DATA SHEET1456 10. KM-1601SAH3SPECIFICATION SHEET PERFORMANCE DATA SHEETPERFORMANCE DATA SHEET 11. KM-1601SWHSPECIFICATION SHEET 12. KM-1601SWH3 13. KM-1601SRH with URC-21F Auxiliary Codes R-0, R-1, and some S-1 PERFORMANCE DATA SHEET SPECIFICATION SHEET15. KM-1601SRH with URC-22F Auxiliary Codes S-2 and Later PERFORMANCE DATA SHEET 16. KM-1601SRH3 with URC-21F Auxiliary Codes R-0, R-1, and some S-1SPECIFICATION SHEET PERFORMANCE DATA SHEET SPECIFICATION SHEET1530 18. KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and LaterSPECIFICATION SHEET PERFORMANCE DATA SHEET2480 19. KM-1900SAHSPECIFICATION SHEET PERFORMANCE DATA SHEET1859 20. KM-1900SAH3SPECIFICATION SHEET PERFORMANCE DATA SHEET1876 21. KM-1900SWHSPECIFICATION SHEET PERFORMANCE DATA SHEET1814 22. KM-1900SWH3SPECIFICATION SHEET PERFORMANCE DATA SHEET2630 23. KM-1900SRH with URC-21FSPECIFICATION SHEET PERFORMANCE DATA SHEET1857 24. KM-1900SRH with URC-22FSPECIFICATION SHEET PERFORMANCE DATA SHEET1965 25. KM-1900SRH3 with URC-21FSPECIFICATION SHEET PERFORMANCE DATA SHEETPERFORMANCE DATA SHEET 26. KM-1900SRH3 with URC-22FSPECIFICATION SHEET 2096 27. KM-2100SWH3SPECIFICATION SHEET PERFORMANCE DATA SHEET3210 28. KM-2100SRH3 with URC-22FSPECIFICATION SHEET PERFORMANCE DATA SHEET2408 29. KM-2500SWH3SPECIFICATION SHEET PERFORMANCE DATA SHEET3780 30. KM-2500SRH3 with URC-23FSPECIFICATION SHEET PERFORMANCE DATA SHEET1821 31. KMH-2000SWHSPECIFICATION SHEET PERFORMANCE DATA SHEET32. KMH-2000SWH3 1944 33. KMH-2000SRH with URC-22FSPECIFICATION SHEET PERFORMANCE DATA SHEETPERFORMANCE DATA SHEET 34. KMH-2000SRH3 with URC-22FSPECIFICATION SHEET a KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SH B. Wiring Diagrams1. Diagrams without Harvest Pump Timer Relays E and G Control Boards 384±22 KM-2500SH3, KMH-2000SH3SwitchPressure-High b KM-1601SWH3, KM-1601SRH3, KM-1900SH3, KM-2100SH3Auxiliary Code 2. Diagrams with Harvest Pump Timer Relays G Control Boarda KM-1301SH Auxiliary Code T-0, U-0 T-0, U-0b 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 Water-Cooled Model e KM-1400SWH-MHigh-Pressure Switch Control Transformer Output 10.5V atOutput 10.5V at High-Pressure Switchf KM-1400SWH3-M Control Transformer

B. KMH Construction

1. Water-Cooled Models (SWH/3)

Model Shown: KMH-2000SWH3