Hoshizaki Condensing Unit Models SRK-14J/3, KMS-1401MLJ service manual Control Board Layout

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1. Control Board Layout

"G" Control Board

• "ALARM RESET" Button • S4 Dip Switch

Bin Control Switch Closed LED (green)

Bin Control Switch Open LED (yellow)

Part Number

• Alarm Buzzer

Power LED (red)

(lights when 10.5VAC is supplied

to K2 connector)

Relay LEDs

(4) (indicate which

relays are energized and which K1 connector pins are energized

LED 2 (X2 Relay)

LED 2 on:

K1 Connector Pin #2 LED 2 off:

K1 Connector Pin #3

• "OUTPUT TEST" Button

(used to test relays on control board)

• K3 (white) Connector Harvest Control (thermistor)

• K4 (red) Connector

Bin Control

• S5 Dip Switch

• K5 (black) Connector

Float Switch

• Label

(control board revision level indicated on label on side of relay)

• K1 Connector Pins #1 through #10

#1, 9 Magnetic Contactor, X13 Relay (holding circuit during Harvest Pump Timer), and

LED 3 (X3 Relay)

LED 3 on:

K1 Connector Pin #5 (energized during harvest pump timer)

LED 3 off:

K1 Connector Pin #4 (energized in freeze)

LED 4 (X4 Relay)

K1 Connector Pin #6

LED 1 (X1 Relay)

K1 Connector Pin #1, #9

K2 Connector

Control Transformer (10.5VAC)

Drain Valve (during Pump-Out)

#2 Hot Gas Valves (KMS and

SRK) and X10 Relay #3 Liquid Line Valves #4 Pump Motor (freeze) #5 X11 Relay (Pump Motor

in Harvest Pump Timer and Drain Valve in Pump-Out)

#6 Fill Water Valve (InitialFill and Freeze Fill only); Harvest Water Valve and X12 Relay (Harvest only)

#7, 10 Supply Voltage #8 Open

"G" Control Board

Part Number 2A3792-01

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Contents Modular Crescent Cuber Serenity Series Model Hoshizaki AMERICA, INC Contents Page Important Safety Information For SRK For KMSKMS-1401MLJ with SRK-14J Specifications IcemakerKMS-1401MLJ with SRK-14J3 Data PendingSRK-14J Condensing UnitSRK-14J3 Icemaker II. General Information ConstructionCondensing Unit Sequence Cycles and Shutdown Sequence of OperationMinute Fill Cycle Initial Harvest CyclePump-Out Cycle S4 Dip Switch Setting Pump-Out 1st Pump-Out FrequencyHarvest Cycle ShutdownSequence FlowControl Board Control Board Control Board LayoutNo. of Beeps Type of Alarm Every 3 sec LED Lights and Audible Alarm SafetiesSequence Step Energized Time LEDs are On Components Min Max AvgDefault Dip Switch Settings Controls and AdjustmentsS4 Dip Switch Harvest Timer S4 dip switch 1S4 Dip Switch Setting Time seconds Inlet Water Valve Pump-Out Timer S4 dip switch 3Pump-Out Frequency Control S4 dip switch 5 Factory Use S4 dip switch Harvest Pump Timer S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time secondsRefill Counter S5 dip switch 2 through Float Switch Selector S5 dip switchS5 Dip Switch Setting No. of Refills No.4 RefillDrain Control and Service SwitchesCirc WashIII Control Output Wiring DiagramsTransformer 10.5V at Output 10.5V at Control TransformerWire Harness Connections Wire Harness ConnectionsSRK Condensing Unit KMS Icemaker Unit factory connectedProduction PER 24 HR Performance DataData Pending Diagnostic Procedure IV. Service DiagnosisPage Page Page Control Board Check Bin Control Check Bin Control Check and CleaningBin Control Cleaning Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check No Ice Production Possible Cause Diagnostic ChartsNo Ice Production Freeze-Up Possible Cause Harvest Cycle Freeze-UpFreeze Cycle Freeze-Up Possible CauseLong Freeze Cycle Low Ice ProductionLow Ice Production Possible Cause Long Harvest Cycle Refrigerant Recovery Replacement of ComponentsService for Refrigerant Lines Evacuation and Recharge R-404A BrazingPage Component Important Notes for Component ReplacementCleaning and Sanitizing Instructions VI. Cleaning and MaintenanceCleaning Procedure Sanitizing Procedure Following Cleaning Procedure Stainless Steel Exterior MaintenanceStorage Bin Scoop Dispenser Unit/Storage BinPreparing the Icemaker for Periods of Non-Use Page VII. Disposal

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.