Hoshizaki MWH KM-515MAH, MRH/3, MRH KM-901MAH, MWH(-M), MRH KM-600MAH KM-650MAH, KM-320MAH Off

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7)Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out).Timing of the first pump-out is dependent on CB. "E" CB first pump‑out is after the first freeze cycle. "G" CB first pump-out is determined by S4 dip switch 5 & 6. See the table below.

"E" & "G" Control Board Settings

1st Pump-Out

 

 

 

 

 

S4 Dip Switch Setting

Pump-Out

"E" Control Board

"G" Control Board

No. 5

No. 6

Frequency

 

 

 

 

 

 

 

OFF

OFF

Every cycle

After 1st freeze 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

 

 

 

 

 

Comp and FMR continue, HGV energizes. If S4 dip switch 3 & 4 are set to 3 off and 4 on, LED 4 turns on and WV energizes. FM and LLV de‑energize. PM stops for 2 sec., then reverses for 10/20 sec. depending on pump‑out timer (S4 dip switch 3 & 4) setting. When the pump‑out timer terminates, pump‑out is complete. The pump-out frequency control (S4 dip switch 5 & 6) is factory set, and generally no adjustment is required. However, the pump‑out frequency control can be set to have a pump‑out occur every cycle, or every 2, 5, or 10 cycles. For details, see "III.C.4. Pump‑Out Frequency Control (S4 dip switch 5 & 6)."

Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above), disconnect CB black K5 connector (FS connector) after 5 min. of freeze. Check that PM stops and re-starts and water is flowing down the drain through CV. If PM does not stop and re-start, check that CB LEDs 1, 3, and 2 are on. If not, replace CB. If LEDs 1, 3, and 2 are on and PM does not energize, check for 115VAC at

CB K1 #5 (DBU) to neutral (W). If 115VAC is not present, replace CB.

If 115VAC is present, make sure the drain line is not clogged and that CV is clean and operating properly.

Confirm FM and LLV de-energize. If FM or LLV is energized with LEDs 1, 3, and 2 on, replace CB.

8)Normal Harvest Cycle – Same as the initial harvest cycle. Return to step 5 above. Note: Appliance continues to cycle until TBC or MBC is satisfied or power is turned off.

The appliance always restarts at the 1-min. fill cycle.

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Contents Modular Crescent Cuber Models KM-320MAH, MWH Hoshizaki AMERICA, INC Contents Page Page Important Safety Information Additional Warning for Remote Models Air-Cooled Models MAH Construction and Water/Refrigeration Circuit DiagramModel Shown KM-515MAH Water-Cooled Models MWH-M Model Shown KM-515MWHRemote Models MRH/3 Model Shown KM-901MRHWater/Refrigeration Circuit Diagram Discharge Line Freeze Pump- Out G Control Board without Harvest Pump Sequence of Operation Flow ChartTimer Operation Minute Harvest Cycle Freeze Cycle Pump-Out CycleIcemaker Off Ice Level Lowered Bin FullIcemaker Off Timer Control Board with Harvest PumpService Diagnosis G Control Board without Harvest Pump Timer Diagnosis Page Page Page OFF Shutdown Control Board Thermostatic Bin Control TBC Mechanical Bin ControlControl Board with Harvest Pump Timer Diagnosis Page Page Page Every cycle After 2nd freeze cycle Shutdown Mechanical Bin Control Control Board Check Control Correct LED BoardBin Control Check Thermostatic Bin Control CheckCycle at Shutdown Mechanical Bin Control Activation Mechanical Bin Control CheckMechanical Bin Control Cleaning Model Shown KM-901MH/3Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Thermistor Check No Ice Production Diagnostic TablesNo Ice Production Possible Cause Freeze-Up Freeze-Up Possible Cause Harvest CycleFreeze-Up Possible Cause Low Ice ProductionLow Ice Production Possible Cause Long Harvest Cycle Low Ice Production Possible Cause Long Freeze Cycle III. Controls and Adjustments Control Board Control Board LayoutControl Board Part Number 2A3792-01 Sequence Step LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Every 3 sec Energized Time LEDs are On Components Min Max AvgControl Board S4 Dip Switch G Control Boards Settings and AdjustmentsDefault Dip Switch Settings S5 Dip Switch Control Board OnlyPump-Out Timer S4 dip switch 3 Harvest Timer S4 dip switch 1S4 Dip Switch Setting Time Sec Control Board 1st Pump-Out S4 Dip Switch Setting Frequency Pump-Out Frequency Control S4 dip switch 5Bin Control Control Board S4 Dip Switch Setting Pump Motor Time sec Factory Use S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Time MinFloat Switch Selector S5 dip switch 1 G Control Board Control SwitchRefill Counter S5 dip switch 2 through 5 G Control Board Refrigeration Circuit Service Information IV. Refrigeration Circuit and Component Service InformationRefrigerant Recovery Brazing Evacuation and Recharge R-404APage Water Regulating Valve Adjustment water-cooled model Component Service InformationComponent Maintenance Schedule MaintenanceFrequency Area Task Remove the water from the icemaker water line VI. Preparing the Appliance for Periods of Non-UseRemove the water from the water tank Page VII. Disposal VIII. Technical Information Specification Sheets KM-320MAHKM-320MWH Water Cooled CondenserKM-515MAH KM-515MWH KM-515MRH KM-600MAH KM-650MAH KM-650MWH Awaiting Data KM-650MWH-MKM-650MRH KM-901MAH KM-901MWH KM-901MRH KM-901MRH3 Performance Data 730 352337 430980 501435 1090940 500436 9601000 491452 1981040 592503 11901180 661562 12901060 6201080 744Awaiting Data 1220 632564 13201600 874732 17101480 912827 15501590 889785 17701670 899815 1830Wiring Diagrams Diagrams Without Harvest Pump Timer RelaysKM-650MAH, KM-650MWH, KM-901MAH, KM-901MWH KM-650MRH, KM-901MRH KM-901MRH3 Diagrams With Harvest Pump Timer Relays KM-515MAHKM-650MAH, KM-650MWH, KM KM-650MWH-M KM-650MRH
Related manuals
Manual 50 pages 28.96 Kb Manual 40 pages 33.48 Kb

KM-320MAH, MRH KM-600MAH KM-650MAH, MWH(-M), MRH KM-901MAH, MRH/3 specifications

Hoshizaki, a leading manufacturer in the food service equipment sector, offers a diverse range of ice-making machines that excel in efficiency, durability, and innovative technology. Among the notable models are the Hoshizaki MWH KM-515MAH, MWH(-M), MRH KM-901MAH, MRH KM-600MAH, KM-650MAH, and KM-320MAH. Each model brings unique features designed to meet varying commercial ice production needs.

The Hoshizaki MWH KM-515MAH is particularly recognized for its high ice production capacity, generating up to 515 pounds of ice per day. This model incorporates advanced technology that ensures consistent ice quality and purity. The MWH(-M) variant often includes modifications to suit specific operational environments, ensuring reliability in diverse settings.

Similarly, the MRH KM-901MAH stands out with its ability to produce a staggering 901 pounds of ice per day, making it ideal for high-volume establishments. This model is equipped with Hoshizaki's unique "cubelet" technology, producing a soft, chewable ice perfect for beverages. It also features a robust stainless steel construction, enhancing its durability and resistance to corrosion.

The MRH KM-600MAH offers 600 pounds of daily ice output, while the KM-650MAH enhances that capacity to 650 pounds. Both machines prioritize energy efficiency and come with built-in energy-saving modes. These models feature advanced ice sensing technology that monitors production levels to optimize energy consumption and reduce waste.

On the other hand, the KM-320MAH is designed for smaller establishments, with a daily ice production rate of 320 pounds. Despite its smaller footprint, it maintains high production efficiency and is equipped with features like a built-in storage bin, saving space while ensuring a reliable ice supply.

Across these models, Hoshizaki employs various technologies, including air-cooled and water-cooled systems, offering flexibility depending on installation requirements. The ice machines are designed with user-friendly controls and features like self-cleaning capabilities, making maintenance straightforward and less time-consuming.

In summary, Hoshizaki's ice machines, including the MWH KM-515MAH, MRH KM-901MAH, and others, deliver exceptional ice production, durability, and efficiency tailored to meet the demands of any commercial kitchen or service establishment. With a commitment to quality, Hoshizaki continues to be a trusted choice for businesses needing reliable ice-making solutions.
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