B. LED Lights and Audible Alarm Safeties

1. "E" Control Board

At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when power is turned off. The red "POWER OK" LED indicates proper control voltage and remains on unless a control voltage problem occurs. The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below. Note that the order of the LEDs from the outer edge of the control board is 1, 4, 3, 2.

Sequence Step

LED

Energized

 

Time LEDs are On

Components

Min.

 

Max.

Avg.

 

 

 

1-Minute Fill Cycle

4

WV

 

 

 

1 minute

Harvest Cycle

1, 4, 2

Comp, FMR, HGV, WV

2 minutes

 

20 minutes

3 to 5 minutes

Freeze Cycle

1

Comp, FM/FMR, PM,

5 minutes

 

freeze timer

30 to 35 minutes

 

 

LLV

 

 

setting

 

Pump-Out Cycle

1, 4*, 3, 2

Comp, FMR, HGV, PM,

10 seconds

 

20 seconds

*pump-out timer

 

 

WV*

 

 

 

 setting

The built in safeties shut down the icemaker and have alarms as listed below.

No. of Beeps

Type of Alarm

Notes

(every 3 sec.)

 

 

1

High Evaporator Temp.

Check for harvest problem (stuck HGV or relay), hot

 

(temperature > 127°F) (53°C)

water entering icemaker, or shorted thermistor.

2

Harvest Backup Timer

Orange "H TIMER" LED on.

 

(harvest > 20 min. for two cycles

Check for open thermistor, HGV not opening, TXV or

 

in a row)

LLV leaking by, low charge, or inefficient Comp, or WRV

 

 

leaking by.

3

Freeze Timer

Yellow "F TIMER" LED on.

 

(freeze > specified setting for

Check for FS stuck closed (up), WV leaking by, HGV

 

two cycles in a row)

leaking by, PM not pumping, TXV not feeding properly,

 

 

LLV not opening, low charge, HM not bypassing, or

 

 

inefficient Comp.

To reset the above safeties, press the "ALARM RESET" button with the power supply on.

6

Low Voltage

Red LED turns off if voltage protection operates.

 

(92Vac±5% or less)

The control voltage safeties automatically reset when

7

High Voltage

voltage is corrected.

 

(147Vac±5% or more)

 

Legend: Comp–compressor; FM–fan motor; FMR–fan motor remote; FS–float switch; HGV–hot gas valve; HM–headmaster (C.P.R.); LLV–liquid line valve; PM–pump motor; TXV–thermostatic expansion valve; WRV–water regulating valve; WV–inlet water valve

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Hoshizaki SRH3 KM-2500SWH3 LED Lights and Audible Alarm Safeties, Sequence Step, No. of Beeps Type of Alarm Every 3 sec
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SRH/3 KM-1900SAH/3, SRH3 KM-2500SWH3, SRH3 KMH-2000SWH/3, SWH/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.
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