Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-1301SRH/3, KM-1301SAH/3, KM-1301SWH/3 KM-1301SWH, KM-1301SWH3 water-cooled

Models: KM-1301SWH/3 KM-1301SRH/3 KM-1301SAH/3

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2. KM-1301SWH, KM-1301SWH3 (water-cooled)

2. KM-1301SWH, KM-1301SWH3 (water-cooled)

Spray Tubes

Inlet Water Valve

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Float Switch

Compressor

Bin Control Thermostat

Control Switch

Low-Side Service Valve

High-Side Service Valve

Expansion Valves

Water Supply Inlet

Junction Box

Hot Gas Valve

Check Valves

Water-Cooled

Condenser

Water Regulating

Valve

Drier

Control Box

Liquid Line Valve

Transformer Box (KM-1301SWH3)

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Hoshizaki KM-1301SRH/3, KM-1301SAH/3, KM-1301SWH/3 service manual KM-1301SWH, KM-1301SWH3 water-cooled

Contents

Stackable Crescent Cuber Models KM-1301SAH/3 KM-1301SWH/3 KM-1301SRH/3 SERVICE MANUALHoshizakiHoshizaki America, Inc •Complete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 SouthPeachtree City, GA Attn: Hoshizaki Technical Support DepartmentCONTENTS e Harvest Pump Timer S4 dip switch f Factory Use S4 dip switchg Freeze Timer S4 dip switch 9 & h Float Switch Control S5 dip switchV. Removal and Replacement of Components A. Service for Refrigerant Lines1. Refrigerant Recovery B. Removal and Replacement of CompressorImportant Safety Information I. Specifications A. Icemaker 1. KM-1301SAH air-cooled2. KM-1301SAH3 air-cooled 3. KM-1301SWH water-cooled 4. KM-1301SWH3 water-cooled 5. KM-1301SRHremote air-cooled 6. KM-1301SRH3remote air-cooled 1. URC-14F B. Condenser UnitUnit: inches mm SPECIFICATIONS MODEL URC-14FII. General Information A.Construction 1. KM-1301SAH, KM-1301SAH3 air-cooled2. KM-1301SWH, KM-1301SWH3 water-cooled 3. KM-1301SRH, KM-1301SRH3remote air-cooled B. Sequence of Operation 1. Sequence Cycles and Shutdowna1-MinuteFill Cycle bInitial Harvest CycleeHarvest Cycle dPump-OutCyclefShutdown G Control Board Sequence Flow Chart TimerKM-1301SAH/3, KM-1301SWH/3,and KM-1301SRH/3 Harvest PumpC. Control Board G Control Board 1. Control Board LayoutControl Board Part Number 2A3792-01bHarvest Backup Timer and Freeze Timer cHigh Temperature SafetydLow Water Safety aMaximum Water Supply Period - 6 minutesf LED Lights and Audible Alarm Safeties aDefault Dip Switch Settings 3. Controls and AdjustmentsbHarvest Timer S4 dip switch c Pump-OutTimer S4 dip switch 3 & dPump-OutFrequency Control S4 dip switch 5 &f Factory Use S4 dip switch e Harvest Pump Timer S4 dip switchg Freeze Timer S4 dip switch 9 & h Float Switch Control S5 dip switch i Refill Counter S5 dip switch 2 throughE. Float Switch G. Control SwitchD. Bin Control F. ThermistorA. Water Circuit and Refrigeration Circuit III. Technical InformationTank KM-1301SWH, KM-1301SWH3 water-cooled Water TankSpray Tubes Water TankB. Wiring Diagrams 1.Auxiliary Code T-0, U-0a KM-1301SAH air-cooled Transformer Output 10.5V at1301SWH water-cooled Auxiliary Code T-0, U-0bKMTransformer Output 10.5V at Auxiliary Code T-0, U-0cKM Cut-out412±21 PSIGwater KM-1301SAH3 air-cooledand KM1301SWH3 cooledAuxiliary Code T-0, U-0 KM-1301SRH3remote air-cooledTransformer Output 10.5V atCode U-1and Later AuxiliaryTransformer Output 10.5V atAuxiliary Code U-1and Laterb KM-1301SWH water-cooled 10.5V atAuxiliary Code U-1and Later c KM-1301SRHremote air-cooled10.5V at Transformer OutputAir-CooledModel Water-CooledModelCut-out 412±21 PSIG1301SRH3 remote air-cooled e KMTransformer Output 10.5V atC. Performance Data APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE IV. Service Diagnosis A.Diagnostic Procedure31-MinuteFill Cycle – LED 4 is on. WV and X2 relay auxiliary code T-0,U‑0 5Freeze Cycle – LED 1 is on. Comp and FMR remain energized, PM energizes or remains energized depending on harvest pump timer S4 dip switch 7 setting. FM and LLV energize. HGV, and X1 relay auxiliary code T‑0, U-0,X10 relay auxiliary code U‑1 and later de‑energize. The unit is held in freeze by a 5-minuteshort cycle protection timer CB will not accept a signal from F/S. After the 5-minuteshort cycle protection timer expires, CB turns freeze termination over to F/S. During the first 5 minutes of freeze, confirm that the evaporator temperature drops. After 8Shutdown B. Control Board Check 1. Float Switch Check D.Float Switch Check and CleaningC. Bin Control Check 2.Float Switch Cleaning Fig.E.Thermistor Check F. Diagnostic Charts 1. No Ice Production1 The icemaker will not 3 Compressor will 2. Evaporator is Frozen Up 1Freeze cycle time is 3. Low Ice Production 4. Abnormal Ice 5. Other A.Service for Refrigerant Lines V. Removal and Replacement of Components1.Refrigerant Recovery 2. Brazing 3.Evacuation and Recharge R-404AB.Removal and Replacement of Compressor C.Removal and Replacement of Expansion Valve 11Place the expansion valve cover in position E. Removal and Replacement of Evaporator F. Removal and Replacement of Air-CooledCondenser 1Turn off the power supply 2Remove the panels 1Turn off the power supply water‑cooled model Regulator - C.P.R. remote air-cooledmodel L.Removal and Replacement of Thermistor Fig.N.Removal and Replacement of Inlet Water Valve remote air‑cooled modelsO. Removal and Replacement of Pump Motor Fig.P. Removal and Replacement of Control Board VI. Cleaning and Maintenance A. Cleaning and Sanitizing Instructions1.Cleaning Procedure 18Replace the front panel in its correct position B. Maintenance Instructions C. Preparing the Icemaker for Long Storage1. Stainless Steel Exterior 2.Storage Bin and ScoopFig. 3.Drain the water tank