Hoshizaki KM-1301SAH-E, KM-1301SRH-E S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency

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an inoperative Comp, or an inoperative HM. If the unit switches out of freeze with F/S connector removed, but would previously not switch out of freeze with F/S connected (long freeze - 3 beep alarm), F/S may be sticking. To check and clean F/S, see "IV.D.

Float Switch Check and Cleaning." If the unit remains in freeze longer than 15 seconds after disconnecting black F/S connector, replace CB.

Note: Normal freeze cycle will last 20 to 40 minutes depending on model and conditions. Cycle times and pressures should follow performance data provided in this manual. See "III.C. Performance Data."

6)Pump-Out Cycle – (10/20 second pump-out) – LEDs 1, 3, and 2 are on. LED 4 is on when S4 dip switch 3 & 4 are set to 3 off and 4 on. CAUTION! Do not adjust

S4 dip switch 3 & 4 to 3 off and 4 on. Adjustment to this position on this model prevents the pump motor from rotating in the pump-out direction. For details, see

"II.C.2.c) Pump‑Out Timer (S4 dip switch 3 & 4)." Comp and FMR remain energized,

HGV energizes. WV energizes if S4 dip switch 3 off and 4 on. LLV and FM de‑energize. PM stops for 2 seconds, then reverses for 10/20 seconds depending on pump‑out timer S4 dip switch 3 & 4 setting. When the pump‑out timer terminates, the pump-

out is complete. The pump-out frequency control is factory set for every 10th cycle, and generally no adjustment is required. However, where water quality is bad and the icemaker needs a pump-out more often, the pump-out frequency can be adjusted. The pump-out frequency control (S4 dip switch 5 & 6) can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles. Timing of the first pump-out is dependent on S4 dip switch 5 & 6 settings. See the table below.

S4 Dip Switch Setting

Pump-Out

1st Pump-Out

No. 5

No. 6

Frequency

 

 

 

 

 

OFF

OFF

Every cycle

After 2nd freeze cycle

 

 

 

 

ON

OFF

Every 2 cycles

After 3rd freeze cycle

OFF

ON

Every 5 cycles

After 6th freeze cycle

 

 

 

 

ON

ON

Every 10 cycles

After 11th freeze cycle

 

 

 

 

Diagnosis: If PM does not reverse, check to see if CB S4 and S5 dip switch settings are in the factory default position. If S4 dip switch 3 and 4 are adjusted to 3 off and 4 on, WV and harvest pump timer relays energize. Once these relays energize, the pump motor rotates in the freeze cycle rotation. See "III.B. Wiring Diagrams." Check PM circuit and capacitor, check #5 pin (DBu wire) on CB K1 ten-pin connector for voltage, harvest pump timer X1 and X2 relays (auxiliary code T‑0, U-0), X10 and X11 relays (auxiliary code U-1 and later). If water does not pump out, check and clean the check valve assembly and tubing.

7)Normal Harvest Cycle – same as the initial harvest cycle – Return to "IV.A.4) Initial Harvest Cycle."

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Contents Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Serious injury Important Safety InformationIndicates important information about the use and care UnitKM-1301SAH-E air-cooled Specifications IcemakerKM-1301SWH-E water-cooled KM-1301SRH-E remote air-cooled URC-14FE Condenser UnitSpecifications II. General Information Construction KM-1301SWH-E water-cooled Separators Sequence Cycles and Shutdown Sequence of OperationMinute Fill Cycle Initial Harvest CycleFreeze Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out FrequencyPump-Out Cycle Harvest CycleCycle at Shutdown Mechanical Bin Control Activation Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-ECycle Steps Minute Fill Harvest Cycle Sequence Flow ChartPump-Out Cycle Mechanical BC Bin Full Shutdown and RestartControl Board Control Board Control Board LayoutNo. of Beeps Type of Alarm Every 3 sec LED Lights and Audible Alarm SafetiesSequence Step Time LEDs are OnDefault Dip Switch Settings Controls and AdjustmentsHarvest Timer S4 dip switch 1 Pump-Out Frequency Control S4 dip switch 5 Pump-Out Timer S4 dip switch 3Time seconds Inlet Factory Use S4 dip switch Harvest Pump Timer S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time secondsFloat Switch Control S5 dip switch Control SwitchRefill Counter S5 dip switch 2 through Tank Water Tank Headmaster Service Drier Valve Thermistor Auxiliary Code T-0, U-0 Wiring DiagramsKM-1301SAH-E air-cooled U-0 Auxiliary CodeAuxiliary Code U-1 and Later PressureSwitch KM-1301SRH-E remote air-cooled Performance Data 1240 13301780 13351142 12701950 2070Diagnostic Procedure IV. Service DiagnosisPage S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Mechanical Bin Control KM-1301SWH-E, KM-1301SRH-E Shutdown Thermostatic Bin Control KM-1301SAH-EControl Board Check Thermostatic Bin Control Check KM-1301SAH-E Bin Control CheckMechanical Bin Control Check Stacked Unit Connection Detail Single Unit Connection DetailMechanical Bin Control Cleaning Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check Adjustment of Water Regulating Valve water-cooled modelNo Ice Production Diagnostic ChartsNo Ice Production Possible Cause No Ice Production Possible Cause Freeze Up Possible Cause Harvest Cycle Freeze UpFreeze Up Possible Cause Freeze Cycle Low Ice Production Possible Cause Long Harvest Cycle Low Ice ProductionLong Freeze Cycle Service for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404A BrazingPage Component Important Notes for Component ReplacementCleaning Procedure VI. Cleaning and MaintenanceIce Chute Float Switch Assembly Drain Plug Sanitizing Procedure Following Cleaning Procedure Remove the water from the icemaker water supply line MaintenanceDrain the water tank
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