Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki SRH3 KM-2500SWH3, SRH/3 KM-2100SWH3, SRH/3 KM-1400SWH-M Water, Tank, Freeze, Pump-Out

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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Page 16

Water

16

Condenser

Water

Supply

Spray Tubes	Fan
		Service Valve
	Inlet Water Valve
		Drier
		Headmaster
		Headmaster
	Evaporator	(C.P.R.)
	Evaporator

Cleaning Valve Liquid Line

Valve

Thermistor

Receiver

Suction Line

Service Valve

Check Valve

Shut-Off Valve

(Factory Use Only)

High-Pressure

Switch

Fusible Plug

Strainer

Hot Gas

Valve

3b. Remote Models (SRH3) KM-2500SRH3Condenser Unit without Headmaster (CPR)

	Water			Service
	Water			Valve
	Tank			Valve	Check
	Tank			Discharge Line	Check
				Discharge Line	Valves
				Compressor	Valves
			Drain	Compressor
			Drain
	Freeze		Pump-Out
Water Pump			Float Switch
Water Pump				Expansion Valves
				Expansion Valves

Refrigeration Circuit

Water Circuit

Image 16

Hoshizaki SRH3 KM-2500SWH3, SRH/3 KM-2100SWH3, SRH/3 KM-1400SWH-M, SWH3-M KM-1601SAH/3 Water, Tank, Freeze, Pump-Out

Contents

Stackable Crescent Cuber Models SERVICE MANUALHoshizakiHoshizaki America, Inc Complete and detailed explanation of the problem Phone 1-800-233-1940 770 Fax 1-800-843-1056E-mail techsupport@hoshizaki.com HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GACONTENTS C. Settings and Adjustments 1. Default Dip Switch Settingsa E and G Control Board without Harvest Pump Timer Operation b G Control Board with Harvest Pump Timer Operation23. KM-1900SRH with URC-21F Important Safety Information Indicates a hazardous situation which could result in death orserious injury Indicates a situation which could result in damage to theWARNING, continued Additional Warning for Remote ModelsI. Construction and Water/Refrigeration Circuit Diagram A. KM Construction1. Air-Cooled Models SAH/3 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-1301SRH3B. KMH Construction 1. Water-Cooled Models SWH/3Model Shown KMH-2000SWH3 Model Shown KMH-2000SWH3Model Shown KMH-2000SRH3 2. Remote Models SRH/3Model Shown KMH-2000SRH3 Diagram C. Water/Refrigeration Circuit1. Air-Cooled Models SAH/3 Water TankWater-Cooled Models SWH/3/-M Water TankWater Regulating Valve CondenserKM-2500SRH3 Condenser Unit with Headmaster3a. Remote Models SRH/3 Except Water TankWater TankFreeze Pump-OutA. Sequence of Operation Flow Chart II. Sequence of Operation and Service DiagnosisE and G Control Board without Harvest Pump Timer Operation Flow Chart 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 F. Thermistor Check Thermistor LeadCable Tie Foam Insulation1. No Ice Production G. Diagnostic TablesNo Ice Production - Possible Cause 2. Freeze-Up No Ice Production - Possible CauseFreeze-Up - Possible Cause Harvest Cycle3. Low Ice Production Freeze-Up - Possible CauseFreeze Cycle Low Ice Production - Possible CauseLow Ice Production - Possible Cause Long Freeze CycleIII. Controls and Adjustments A. Control Board Layout E Control Board1. E Control Board E Control BoardG Control Board 2. G Control BoardG 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 b G Control Board with Harvest Pump Timer Operation c G Control Board S5 Dip SwitchS4 Dip Switch E and G Control Boards 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 3. KM-1301SWH 13181323 17404. KM-1301SWH3 5. KM-1301SRH with URC-14F 6. KM-1301SRH3 with URC-14F 7. KM-1400SWH-M 8. KM-1400SWH3-M 9. KM-1601SAH SPECIFICATION SHEETPERFORMANCE DATA SHEET 146210. KM-1601SAH3 SPECIFICATION SHEETPERFORMANCE DATA 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 SHEET18. KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and Later SPECIFICATION SHEETPERFORMANCE DATA SHEET 153019. KM-1900SAH SPECIFICATION SHEETPERFORMANCE DATA SHEET 248020. KM-1900SAH3 SPECIFICATION SHEETPERFORMANCE DATA SHEET 185921. KM-1900SWH SPECIFICATION SHEETPERFORMANCE DATA SHEET 187622. KM-1900SWH3 SPECIFICATION SHEETPERFORMANCE DATA SHEET 181423. KM-1900SRH with URC-21F SPECIFICATION SHEETPERFORMANCE DATA SHEET 263024. KM-1900SRH with URC-22F SPECIFICATION SHEETPERFORMANCE DATA SHEET 185725. KM-1900SRH3 with URC-21F SPECIFICATION SHEETPERFORMANCE DATA SHEET 1965SPECIFICATION SHEET 26. KM-1900SRH3 with URC-22FPERFORMANCE DATA SHEET 27. KM-2100SWH3 SPECIFICATION SHEETPERFORMANCE DATA SHEET 209628. KM-2100SRH3 with URC-22F SPECIFICATION SHEETPERFORMANCE DATA SHEET 321029. KM-2500SWH3 SPECIFICATION SHEETPERFORMANCE DATA SHEET 240830. KM-2500SRH3 with URC-23F SPECIFICATION SHEETPERFORMANCE DATA SHEET 378031. KMH-2000SWH SPECIFICATION SHEETPERFORMANCE DATA SHEET 182132. KMH-2000SWH3 33. KMH-2000SRH with URC-22F SPECIFICATION SHEETPERFORMANCE DATA 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 KM-2500SH3, KMH-2000SH3 SwitchPressure-Highb KM-1601SWH3, KM-1601SRH3, KM-1900SH3, KM-2100SH3 384±222. Diagrams with Harvest Pump Timer Relays G Control Board a KM-1301SH Auxiliary Code T-0, U-0T-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 e KM-1400SWH-M High-Pressure SwitchControl Transformer Output 10.5V at Water-Cooled ModelHigh-Pressure Switch f KM-1400SWH3-MControl Transformer Output 10.5V at