Hoshizaki KM-1301SWH/3, KM-1301SAH/3 Sequence Flow Chart, Icemaker Off, Ice Level Lowered

Page 20

"G" Control Board Sequence Flow Chart

KM-1301SAH/3, KM-1301SWH/3, and KM-1301SRH/3

Cycle Steps

 

 

 

 

 

1. 1-Minute

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Harvest Cycle

 

 

 

 

 

 

3. Freeze Cycle

 

 

 

 

4. Pump-Out Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fill Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Minimum freeze time: 5 min.

• Factory set for every

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• WV time: 6 min. or the length of harvest minus 0 or

 

 

• Maximum freeze time: freeze timer setting

10th cycle (S4 dip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50 sec. (S4 dip switch 7), whichever is shorter. DO

 

 

(S4 dip switch 9 & 10)

switch 5 & 6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOT ADJUST S4 dip switch 7 on this model.

 

 

 

 

 

 

 

 

 

 

 

 

• Pump motor stops

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Maximum harvest time: 20 min.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for 2 sec., then

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reverses for 10/20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor

 

 

 

 

1 to 3-min. timer in control

 

 

5-min. timer in

 

 

F/S in control

 

 

sec. (S4 dip switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in control

 

 

 

 

 

 

(S4 dip switch 1 & 2)

 

 

 

 

 

control

 

 

 

 

 

 

 

 

3 & 4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Harvest Pump

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Initial startup

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 or 50 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

begins here

 

 

 

 

 

 

 

 

 

 

F/S closed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/S closed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/S check

 

 

 

 

 

 

 

PM energized

 

 

F/S check

 

 

 

 

 

 

F/S open or freeze

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

after 5-sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WV de-energized

 

Comp continues

 

Comp continues

delay

 

 

WV energized

 

 

WV continues

 

 

 

 

 

timer expires

 

 

 

 

Thermistor temperature

 

 

 

 

 

 

 

 

FMR continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Comp energized

 

 

 

 

 

 

 

FMR continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reaches 48°F (9°C)

 

 

 

 

 

 

 

 

 

 

 

HGV energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PM continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/S open

 

 

FMR energized

(3.9 kΩ or less).

 

 

 

 

 

 

 

 

 

 

 

PM de-energizes for 2 sec.,

 

 

 

 

 

 

 

 

 

 

 

 

 

HGV energized

 

 

 

 

 

 

 

FMS energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Harvest timer starts.

 

 

 

 

 

 

 

 

 

 

 

then reverses for 10/20 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LLV energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/S open

 

 

 

 

 

FM de-energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HGV de-energized

 

 

 

 

LLV de-energized

 

 

 

 

 

 

 

 

If F/S is open, compressor stops and cycle returns to 1-Minute Fill Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Sequence Flow Chart

20

Shutdown 1. Bin Full and Restart Within 10 sec.

after ice contacts thermostatic bulb, unit shuts down.

BC Operation

2. Icemaker Off

All components de-energized.

3. Ice Level Lowered

No ice touching thermostatic bulb. Icemaker starts at

"1. 1-Minute Fill Cycle."

To 1 above

Ice contacts thermostatic bulb

Legend:

BC–bin control Comp–compressor FM–fan motor FMR–fan motor-remote F/S–float switch HGV–hot gas valve LLV–liquid line valve PM–pump motor WV–inlet water valve

BC-open

BC closed

All components

NOTE: Green "BC CLOSED" LED on continuously

de-energized

when the K4 jumper is in place.

 

Components Energized when the Control Switch is in the "WASH" Position

The "WASH" position on the control switch is used when cleaning and sanitizing the unit. When in the "WASH" position, power is supplied to the pump motor. With the cleaning valve closed, the cleaner and sanitizer flow over the outside of the evaporator plate assembly. With the cleaning valve open, the cleaner and sanitizer flow over both the outside and the inside of the evaporator plate assembly.

Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the unit will not restart when the control switch is placed in the "ICE" position.

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page Page Important Safety Information Serious injuryIndicates important information about the use and care UnitSpecifications Icemaker KM-1301SAH air-cooledKM-1301SAH3 air-cooled KM-1301SWH water-cooled KM-1301SWH3 water-cooled KM-1301SRH remote air-cooled KM-1301SRH3 remote air-cooled Condenser Unit URC-14F Unit inches mmSpecifications II. General Information Construction KM-1301SAH, KM-1301SAH3 air-cooledKM-1301SWH, KM-1301SWH3 water-cooled KM-1301SRH, KM-1301SRH3 remote air-cooled Sequence of Operation Sequence Cycles and ShutdownMinute Fill Cycle Initial Harvest CycleS4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Pump-Out CycleHarvest Cycle ShutdownIce Level Lowered Sequence Flow ChartIcemaker Off Control Board Control Board Layout Control BoardHarvest Backup Timer and Freeze Timer High Temperature SafetyLow Water Safety Maximum Water Supply Period 6 minutesLED Lights and Audible Alarm Safeties No. of Beeps Type of Alarm Every 3 secSequence Step Energized Time LEDs are On Components Min Max AvgHarvest Timer S4 dip switch 1 Controls and AdjustmentsDefault Dip Switch Settings S4 Dip Switch Setting Time seconds Inlet Pump-Out Timer S4 dip switch 3Pump-Out Frequency Control S4 dip switch 5 Harvest Pump Timer S4 dip switch Factory Use S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time secondsFloat Switch Control S5 dip switch Refill Counter S5 dip switch 2 throughFloat Switch Control SwitchBin Control ThermistorTank Water Tank Valve Wiring Diagrams PressureSwitchAuxiliary Code T-0, U-0 KM-1301SAH air-cooledHigh Pressure Switch 1301SWH water-cooledAuxiliary Code T-0, U-0cKM Water KM-1301SRH3 remote air-cooled Auxiliary Code U-1 and Later a KM-1301SAH air-cooled KM-1301SWH water-cooled KM-1301SRH remote air-cooled KM-1301SAH3 air-cooled and KM-1301SWH3 water-cooled 1301SRH3 remote air-cooled Performance Data 1298 11592090 22201318 13231740 17601333 13001770 18401353 12222010 4791339 11972140 463IV. Service Diagnosis Diagnostic ProcedurePage S4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Shutdown Control Board Check Bin Control Check Float Switch Check and CleaningFloat Switch Check Float Switch Cleaning Thermistor Check No Ice Production Diagnostic ChartsProblem Possible Cause Remedy BC Closed LED Problem Possible Cause Remedy Evaporator is Frozen Up Problem Possible Cause Remedy Low Ice Production Abnormal Ice Other Refrigerant Recovery Removal and Replacement of ComponentsService for Refrigerant Lines Brazing Evacuation and Recharge R-404ARemoval and Replacement of Compressor Removal and Replacement of Expansion Valve Page Removal and Replacement of Evaporator Removal and Replacement of Air-Cooled Condenser Removal and Replacement of Water-Cooled Condenser Removal and Replacement of Remote Air-Cooled Condenser Page Adjustment of Water Regulating Valve water-cooled model Removal and Replacement of Thermistor Removal and Replacement of Inlet Water Valve Removal and Replacement of Pump Motor Removal and Replacement of Control Board VI. Cleaning and Maintenance Cleaning and Sanitizing InstructionsCleaning Procedure Sanitizing Procedure Following Cleaning Procedure Maintenance Instructions Preparing the Icemaker for Long StorageRemove the water from the icemaker water supply line Drain the water tank
Related manuals
Manual 101 pages 53.65 Kb

KM-1301SWH/3, KM-1301SRH/3, KM-1301SAH/3 specifications

The Hoshizaki KM-1301SRH/3, KM-1301SWH/3, and KM-1301SAH/3 are advanced ice makers designed for commercial use, addressing a wide variety of needs in restaurants, hotels, and bars. These models are known for their efficiency, durability, and innovative technologies that ensure the production of high-quality ice.

One of the standout features of these units is their ability to produce a high volume of ice, reaching up to 1,300 pounds per day, which is crucial for establishments with heavy ice demands. The machines utilize advanced cooling technology, allowing for faster ice production and minimizing the time required to refill ice bins. This makes them ideal for busy settings where speed and efficiency are paramount.

The KM-1301 series employs a unique stainless steel exterior that not only ensures longevity and resistance to corrosion but also enhances the aesthetic appeal of any commercial kitchen or bar. The interior is designed for easy cleaning, helping to maintain hygiene standards vital for food safety.

These ice makers utilize the proprietary Hoshizaki Cubelet Ice system, producing small, chewy ice cubes that are perfect for various beverages and food displays. The advanced design of the ice-making mechanism ensures that ice is formed quickly and efficiently, reducing energy consumption. Additionally, Hoshizaki’s CycleSaver technology optimizes the production process by reducing the amount of water used, making these machines environmentally friendly.

Another characteristic is their self-diagnostic capability, which allows for real-time monitoring of unit performance and quicker troubleshooting, minimizing downtime. The built-in alerts notify operators of any issues or maintenance needs, ensuring that the ice-making process remains uninterrupted.

The KM-1301 series also provides user-friendly controls that allow easy adjustments and monitoring of ice production settings. This flexibility enables businesses to meet varying ice demands based on seasonality or special events.

In summary, the Hoshizaki KM-1301SRH/3, KM-1301SWH/3, and KM-1301SAH/3 ice makers are exemplary choices for commercial ice production. With their high output, durable design, energy efficiency, innovative technologies, and user-friendly features, they cater effectively to the rigorous demands of the foodservice industry while maintaining a commitment to quality and sustainability.
Top Page Image Contents