2. LED Lights and Audible Alarm Safeties

At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when the control switch is moved to the "ICE" position. The red 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. For details, see "II.B. Sequence of Operation."

 

Sequence Step

 

 

LED

 

 

Energized

 

 

 

 

 

Time LEDs are On

 

 

 

 

 

Components

 

 

Min.

 

 

Max.

 

 

Avg.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-Minute Fill Cycle

 

4

 

 

WV1

 

 

 

 

 

 

 

 

1 minute

 

Harvest Cycle

 

1, 4, 2

 

 

Comp, FMRs

 

 

2 minutes

 

 

20 minutes

 

 

3 to 5 minutes

 

 

 

 

 

 

 

WV2, HGVs

 

 

 

 

 

 

 

 

 

 

Harvest Pump Timer

 

1, 3, 2

 

 

Comp, FMRs,

 

 

0 seconds

 

 

50 seconds

 

 

harvest pump

 

 

 

 

 

 

 

PM, HGVs

 

 

 

 

 

 

 

 

timer setting

 

Freeze Cycle

 

 

1 (and 4 for first

Comp, FMRs,

 

 

5 minutes

 

 

freeze timer

 

 

30 to 35 minutes

 

 

 

 

1 min.)

 

 

PM, LLVs

 

 

 

 

 

setting

 

 

 

 

 

 

 

 

 

 

(WV1 for first 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

min.)

 

 

 

 

 

 

 

 

 

 

Pump-Out Cycle

 

1, 3, 2

 

 

Comp, FMRs,

 

 

10 seconds

 

 

20 seconds

 

 

 

 

 

 

 

 

 

 

PM, HGVs, DV

 

 

 

 

 

 

 

 

 

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 HGVs or relay), hot

 

(temperature > 127°F (53°C))

water entering icemaker, stuck HM, or shorted thermistor.

2

Harvest Backup Timer

Check for open thermistor, HGVs not opening, TXVs or

 

(harvest > 20 min. for two cycles

LLVs leaking by, low charge, or inefficient Comp.

 

in a row)

 

3

Freeze Timer

Check for a F/S stuck closed (up), WV1 or WV2 leaking

 

(freeze > specified setting for

by, HGVs leaking by, PM not pumping, TXVs not

 

two cycles in a row)

feeding properly, LLVs not opening, low charge, HM not

 

Timer is factory set using S4 dip

bypassing, or inefficient compressor.

 

switch 9 & 10

 

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

 

 

 

6

Low Voltage

Red LED will turn 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; DV–drain valve; FMRs–fan motors-remote; F/S–float switch; HGVs–hot gas valves; HM–headmaster (C.P.R.); LLVs–liquid line valves; PM–pump motor; TXVs–thermostatic expansion valves; WV1–fill/refill water valve; WV2–harvest water valve

18

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Image 18
Hoshizaki KMS-1401MLJ LED Lights and Audible Alarm Safeties, Sequence Step, No. of Beeps Type of Alarm Every 3 sec
Page 17 Page 19

Condensing Unit Models SRK-14J/3, KMS-1401MLJ specifications

The Hoshizaki KMS-1401MLJ and the Condensing Unit Models SRK-14J/3 are critical components in the commercial refrigeration sector, designed to provide efficient and reliable cooling for various applications. These models stand out for their exceptional performance, advanced technologies, and robust characteristics that meet the demanding needs of food service, hospitality, and retail establishments.

One of the primary features of the Hoshizaki KMS-1401MLJ is its high-capacity cooling capability. With a refrigerating capacity suitable for larger applications, this unit is designed to handle significant load demands while maintaining energy efficiency. This is particularly advantageous in environments where consistent temperature control is vital for preserving perishable goods.

The SRK-14J/3 models further enhance the functionality of this system by incorporating advanced inverter technology. This innovation allows for variable speed operation, adjusting the compressor's output based on the actual cooling demand. As a result, users can experience reduced energy costs and lower environmental impact. This efficiency not only decreases the overall operating expenses but also extends the lifespan of the unit due to reduced wear and tear on the compressor.

The Hoshizaki units are also renowned for their user-friendly interface, which features intuitive controls for easy operation and monitoring. This ensures that users can quickly adjust settings to accommodate specific storage needs, improving overall convenience and efficiency in the workplace.

Additionally, both the KMS-1401MLJ and the SRK-14J/3 models are designed with durability in mind. Constructed from high-quality materials, they are built to withstand the rigorous demands of a commercial kitchen or storage facility. Features such as corrosion-resistant coatings and robust insulation enhance the longevity of these units, making them a wise investment for business owners.

In terms of maintenance, Hoshizaki has incorporated several design elements to facilitate ease of service. Access points for routine checks and cleaning have been strategically placed, enabling technicians to perform maintenance tasks without disrupting the operation of the units.

In conclusion, the Hoshizaki KMS-1401MLJ and Condensing Unit Models SRK-14J/3 offer a perfect blend of efficiency, durability, and technological advancement. Their ability to provide reliable cooling solutions makes them integral to any establishment focused on quality and performance in food and beverage storage. For businesses seeking to enhance operational efficiency while ensuring the preservation of their products, these models represent a leading choice in the commercial refrigeration market.
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