Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki SRH3 KMH-2000SWH/3, SRH/3 KM-2500SRH3, Condenser Unit with Headmaster, Water Tank

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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Spray Tubes

Water

Tank

Inlet Water Valve Spray Tubes

Evaporator

Check Valve

	Condenser			KM-2500SRH3: Headmaster
Water	Condenser			located in icemaker
Water
Supply
	Fan
		Headmaster
	Cleaning Valve	(C.P.R.)				Service
	Cleaning Valve		Drier			Valve
						Valve
	Thermistor
	Thermistor		Receiver
			Receiver
		Liquid Line				Fusible Plug
		Valve				High Pressure
						High Pressure
	Heat Exchanger					Switch
	Heat Exchanger					Hot Gas


			Suction Line			Valve
						Valve


		Service
		Valve
							Check
							Check
						Strainer	Valves
Float Switch					Service
					Service
					Valve

			Compressor		Discharge Line
			Compressor
Drain

Condenser Unit with Headmaster	3a. Remote Models (SRH/3) Except
(CPR)	KM-2500SRH3

Water Pump	Expansion Valves

Freeze/Harvest Pump-Out

Pump Timer

Refrigeration Circuit

Water Circuit

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Image 15

Hoshizaki SRH3 KMH-2000SWH/3 KM-2500SRH3, Condenser Unit with Headmaster, 3a. Remote Models SRH/3 Except, Water Tank

Contents

SERVICE MANUAL Stackable Crescent Cuber ModelsHoshizakiHoshizaki America, Inc 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-2000SWH32. Remote Models SRH/3 Model Shown KMH-2000SRH3Model 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 ChartG Control Board with Harvest Pump Timer Operation Flow Chart 2. G Control Board with Harvest Pump Timer OperationComponents 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 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 Cleaning2. Float Switch Cleaning Vent Flush Shaft Float Switch Housing Float Retainer Rod Rubber Bootand Hose Foam Insulation F. Thermistor CheckThermistor Lead Cable TieG. Diagnostic Tables 1. No Ice ProductionNo Ice Production - Possible Cause 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 C. Settings and Adjustments 1. Default Dip Switch Settingsa E and G Control Board without Harvest Pump Timer Operation 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 5b Harvest Pump Timer G Control Board 6. Factory Use S4 dip switch7. Freeze Timer S4 dip switch 9 D. Control Switch 8. Float Switch Selector S5 dip switch 1 G Control Board9. Refill Counter S5 dip switch 2 through 5 G Control Board IV. Refrigeration Circuit and Component Service Information A. Refrigeration Circuit Service Information1. Refrigerant Recovery 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 VI. Preparing the Icemaker for Periods of Non-Use 1. Remove the water from the icemaker water supply line2. Drain the water tank 6 Close the drain valves VII. Disposal A. Specification and Performance Data VIII. Technical Information1. KM-1301SAH 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 SHEET11. KM-1601SWH SPECIFICATION SHEETPERFORMANCE DATA 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 16. KM-1601SRH3 with URC-21F Auxiliary Codes R-0, R-1, and some S-1 SPECIFICATION SHEETPERFORMANCE DATA 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 SHEET26. KM-1900SRH3 with URC-22F SPECIFICATION SHEETPERFORMANCE DATA 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 SHEET34. KMH-2000SRH3 with URC-22F SPECIFICATION SHEETPERFORMANCE DATA SHEET B. Wiring Diagrams 1. Diagrams without Harvest Pump Timer Relays E and G Control Boardsa KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SH 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

Condenser Unit with Headmaster

3a. Remote Models (SRH/3) Except

KM-2500SRH3