Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki KM-1301SAH/3 II. General Information A.Construction, KM-1301SAH, KM-1301SAH3 air-cooled

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

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II. General Information

II. General Information

A.Construction

1. KM-1301SAH, KM-1301SAH3 (air-cooled)

	Spray Tubes	Low-Side Service Valve
		Low-Side Service Valve
Inlet Water Valve
			High-Side Service Valve
Evaporator Assembly			Expansion Valves
			Expansion Valves
			Water Supply Inlet
			Junction Box
			Hot Gas Valve
			Check Valves
Cleaning Valve			Air-Cooled
			Air-Cooled
			Condenser
Check Valve			Control Box
Check Valve
(water)
Water Pump			Fan Blade
Water Pump
Float Switch			Fan Motor
Float Switch
Compressor	Bin Control Thermostat		Drier
			Drier

			Liquid Line Valve
	Control Switch		Transformer Box
	Control Switch		(KM-1301SAH3)
			(KM-1301SAH3)

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Hoshizaki KM-1301SAH/3, KM-1301SRH/3 II. General Information A.Construction, KM-1301SAH, KM-1301SAH3 air-cooled

Contents

KM-1301SWH/3 KM-1301SRH/3 SERVICE MANUAL Stackable Crescent Cuber Models KM-1301SAH/3HoshizakiHoshizaki America, Inc Attn: Hoshizaki Technical Support Department •Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GACONTENTS h Float Switch Control S5 dip switch e Harvest Pump Timer S4 dip switchf Factory Use S4 dip switch g Freeze Timer S4 dip switch 9 &B. Removal and Replacement of Compressor V. Removal and Replacement of ComponentsA. Service for Refrigerant Lines 1. Refrigerant RecoveryImportant Safety Information 1. KM-1301SAH air-cooled I. Specifications A. Icemaker2. KM-1301SAH3 air-cooled 3. KM-1301SWH water-cooled 4. KM-1301SWH3 water-cooled 5. KM-1301SRHremote air-cooled 6. KM-1301SRH3remote air-cooled B. Condenser Unit 1. URC-14FUnit: inches mm MODEL: URC-14F SPECIFICATIONS1. KM-1301SAH, KM-1301SAH3 air-cooled II. General Information A.Construction2. KM-1301SWH, KM-1301SWH3 water-cooled 3. KM-1301SRH, KM-1301SRH3remote air-cooled bInitial Harvest Cycle B. Sequence of Operation1. Sequence Cycles and Shutdown a1-MinuteFill CycledPump-OutCycle eHarvest CyclefShutdown Harvest Pump G Control Board Sequence Flow ChartTimer KM-1301SAH/3, KM-1301SWH/3,and KM-1301SRH/3C. Control Board Part Number 2A3792-01 G Control Board1. Control Board Layout Control BoardaMaximum Water Supply Period - 6 minutes bHarvest Backup Timer and Freeze TimercHigh Temperature Safety dLow Water Safetyf LED Lights and Audible Alarm Safeties 3. Controls and Adjustments aDefault Dip Switch SettingsbHarvest Timer S4 dip switch 1 & dPump-OutFrequency Control S4 dip switch 5 & c Pump-OutTimer S4 dip switch 3 &e Harvest Pump Timer S4 dip switch f Factory Use S4 dip switchg Freeze Timer S4 dip switch 9 & i Refill Counter S5 dip switch 2 through h Float Switch Control S5 dip switchF. Thermistor E. Float SwitchG. Control Switch D. Bin ControlIII. Technical Information A. Water Circuit and Refrigeration CircuitTank Water Tank KM-1301SWH, KM-1301SWH3 water-cooledWater Tank Spray TubesTransformer Output 10.5V at B. Wiring Diagrams1.Auxiliary Code T-0, U-0 a KM-1301SAH air-cooledAuxiliary Code T-0, U-0bKM 1301SWH water-cooledTransformer Output 10.5V at PSIG Auxiliary Code T-0, U-0cKMCut-out 412±21cooled waterKM-1301SAH3 air-cooledand KM 1301SWH310.5V at Auxiliary Code T-0, U-0KM-1301SRH3remote air-cooled Transformer Output10.5V at Code U-1and LaterAuxiliary Transformer Output10.5V at Auxiliary CodeU-1and Later b KM-1301SWH water-cooledTransformer Output Auxiliary Code U-1and Laterc KM-1301SRHremote air-cooled 10.5V at412±21 PSIG Air-CooledModelWater-CooledModel Cut-out10.5V at 1301SRH3 remote air-coolede KM Transformer OutputC. Performance Data APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE APPROXIMATE ICE A.Diagnostic Procedure IV. Service Diagnosis31-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 D.Float Switch Check and Cleaning 1. Float Switch CheckC. Bin Control Check Fig. 2.Float Switch CleaningE.Thermistor Check 1. No Ice Production F. Diagnostic Charts1 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 V. Removal and Replacement of Components A.Service for Refrigerant Lines1.Refrigerant Recovery 3.Evacuation and Recharge R-404A 2. BrazingB.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 Fig. L.Removal and Replacement of Thermistorremote air‑cooled models N.Removal and Replacement of Inlet Water ValveFig. O. Removal and Replacement of Pump MotorP. Removal and Replacement of Control Board A. Cleaning and Sanitizing Instructions VI. Cleaning and Maintenance1.Cleaning Procedure 18Replace the front panel in its correct position 2.Storage Bin and Scoop B. Maintenance InstructionsC. Preparing the Icemaker for Long Storage 1. Stainless Steel Exterior3.Drain the water tank Fig.