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Hoshizaki KMS-1402MLJ User Manual

Hoshizaki KMS-1402MLJ
60 pages
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Model
KMS-1402MLJ
Including
Condensing Unit Models
SRK-15J/3
Modular Crescent Cuber
Service Manual
Number: 73224
Issued: 5-16-2018
hoshizakiamerica.com

Table of Contents

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Hoshizaki KMS-1402MLJ Specifications

General IconGeneral
TypeModular Ice Maker
RefrigerantR-404A
Voltage208-230V
Ice Production Capacity1, 400 lbs/24 hrs
Power Supply208-230V/60Hz/1-Phase

Summary

HOSHIZAKI Service Manual

Modular Crescent Cuber Model KMS-1402MLJ

Details the specific icemaker model and its type for service.

Includes Condensing Unit Models SRK-15J/3

Identifies the compatible condensing unit models covered in this manual.

Safety Warnings and Technical Support

General Safety Precautions for Appliance Installation and Operation

Provides essential safety guidelines to prevent injury and appliance damage.

Hoshizaki Technical Support Contact Information

Lists phone numbers and email for obtaining technical assistance.

Detailed Safety Information and Precautions

Understanding Hazard Symbols and Appliance Usage Guidelines

Explains warning symbols and proper use of the icemaker.

Specific Safety Guidelines for Appliance Operation

Outlines critical safety measures to reduce risks during operation.

Further Safety Warnings and Operational Notices

KMS and SRK Specific Safety Advisories

Details safety concerns specific to KMS and SRK appliance models.

Appliance Placement and Water Damage Prevention Notices

Provides guidance on proper placement to avoid water damage.

Icemaker Construction and Components

Icemaker Component Diagram and Labels

Illustrates and labels the various parts of the icemaker unit.

Condensing Unit Construction and Components

Condensing Unit Component Diagram (SRK Models)

Shows and labels the components of the SRK condensing unit.

Water and Refrigeration Circuit Diagrams

Combined Circuit Diagram for KMS and SRK Units

Presents a unified diagram of the water and refrigeration circuits.

Icemaker Operation Sequence and Flow Chart

Overview of Fill, Harvest, and Freeze Cycle Operations

Details the sequence of operation for the icemaking cycles.

Service Mode Component Activation

Lists components energized when the unit is in service mode.

Icemaker Shutdown and Restart Flow Chart

States of Icemaker Shutdown and Restart Processes

Illustrates the different states and transitions during shutdown and restart.

Freeze-Time Correction Cycle Analysis

Freeze Time Differential Parameters and Flow Chart

Explains parameters for freeze time correction and its operational flowchart.

Service Diagnosis Introduction and Requirements

General Warnings and Initial Diagnostic Steps

Covers essential warnings and preliminary steps for diagnosing issues.

Installation Requirements for Proper Operation

Lists requirements for correct installation to ensure proper function.

Power On Diagnosis and Switch Checks

Power On Diagnosis and Fuse Verification Procedures

Details steps for diagnosing issues after powering on and checking fuses.

High-Pressure Switch (HPS) and DLT Diagnosis

Provides diagnostic steps for HPS and Discharge Line Thermostat.

Detailed Component Diagnosis Procedures

1-Minute Fill and Harvest Cycle Component Checks

Covers diagnosis of components during the initial fill and harvest cycles.

Compressor and Hot Gas Valve (HGV) Diagnosis

Guides on diagnosing issues with the compressor and HGVs.

Liquid Line Valve (LLV) Diagnosis

Outlines the procedure for diagnosing LLV issues.

Relay Diagnosis and Troubleshooting

X10, X12, and X13 Relay Diagnostic Steps

Details diagnostic steps for specific relays X10, X12, and X13.

X11 Relay Diagnosis and Drain Valve Checks

Covers diagnosis for X11 relay and associated drain valve checks.

Harvest Pump Timer and Cycle Termination Diagnosis

Harvest Pump Timer Diagnosis and Checks

Provides steps for diagnosing the harvest pump timer function.

Harvest Cycle Termination Diagnosis Procedures

Explains how to diagnose issues with harvest cycle termination.

Freeze Cycle and Anti-Slush Operation Diagnosis

Freeze Cycle Operation and Component Checks

Details diagnosis of components during the freeze cycle.

Diagnosis of Components during Freeze Cycle

Covers issues related to compressor, FMRs, and valves during freeze.

Key Component and Cycle Termination Diagnosis

PM, LLV, and Refrigerant/TXV Diagnosis

Diagnoses issues with pump motor, LLVs, refrigerant, and TXV.

Freeze Termination and Short Freeze Cycle Issues

Addresses problems with freeze cycle termination and short cycles.

Pump-Out Cycle Operation and Diagnosis

Pump-Out Cycle Diagnosis and Control Board Checks

Details diagnosis of the pump-out cycle and control board status.

PM and Drain Valve (DV) Diagnosis

Guides on diagnosing pump motor and drain valve operations.

Drain Valve, Relay, and Shutdown Diagnosis

DV Diagnosis and Relay Checks (X10, X11, X13)

Covers diagnosis for DV, X10, X11, and X13 relays.

Shutdown Diagnosis and Freeze-Time Correction Checks

Addresses shutdown diagnosis and freeze-time correction checks.

Detailed Freeze-Time Correction Cycle Analysis

Freeze Time Differential Initiation and Comparison

Explains the initiation of freeze time correction based on differential.

Freeze-Time Correction Sequence and Reset Procedures

Freeze-Time Correction Occurrence and Cycle Steps

Describes the sequence of freeze-time correction occurrences and steps.

Appliance Cycle and Control Board Alarm Reset

Details how to reset the appliance cycle and control board alarms.

Control Board Diagnostic Procedures

Alarm Reset and Initial Control Board Checks

Covers alarm reset and preliminary checks of the control board.

Control Board Output Test and LED Sequence

Explains how to perform an output test and check LED sequences.

Control Board Voltage Output Verification

Checking Control Board Connectors (K3, K4, K5) Voltages

Details voltage checks for control board connectors K3, K4, and K5.

Bin Control System Operation Check

Bin Control Proximity Switch Continuity Test

Describes how to test the continuity of the bin control proximity switch.

Bin Control Cleaning and Maintenance

Procedure for Cleaning the Bin Control Unit

Provides step-by-step instructions for cleaning the bin control.

Float Switch Functionality and Water Level Checks

Float Switch Continuity and Operation Test

Details testing float switch continuity and operational function.

Float Switch Cleaning and Reassembly

Steps for Cleaning the Float Switch Assembly

Outlines the process for cleaning the float switch assembly.

Thermistor Resistance and Functionality Test

Procedure for Checking Thermistor Resistance

Details how to measure thermistor resistance for testing.

Control and Service Switch Functions

Control Switch Positions and Operation Modes

Explains the functions of the control switch in its different positions.

Service Switch Functions (Drain, Circulate, Wash)

Describes the three functions of the service switch.

Diagnostic Tables for Troubleshooting Issues

No Ice Production: Possible Causes and Checks

Lists potential causes and checks for the 'No Ice Production' issue.

Troubleshooting No Ice Production Scenarios

Diagnosis of Compressor, Valves, and Motor Issues

Covers diagnostic steps for compressor, valve, and motor problems.

Freeze-Up Diagnosis and Checklist

Causes of Freeze-Up During Harvest and Freeze Cycles

Identifies potential causes for freeze-up in both harvest and freeze cycles.

Troubleshooting Freeze-Up and Low Ice Production

Causes for Low Ice Production in Cycles

Lists potential causes for reduced ice production during cycles.

Freeze-Up Check List Form and Guidelines

Appliance Operation and Setup Checklist Items

Details checklist items related to appliance operation and initial setup.

Appliance Status and Correction Checklist Items

Lists checklist items for appliance status and corrective actions.

Settings and Adjustments Overview

Control Board Handling and Static Discharge Precautions

Provides guidance on safely handling the control board to prevent static damage.

Hoshizaki Control Board Layout and Connectors

Control Board Components and Connector Identification

Illustrates the control board and identifies its components and connectors.

Control Board LEDs and Audible Alarm Safeties

Sequence Step LEDs and Energized Components

Explains the meaning of sequence step LEDs and energized components.

Alarm Conditions and LED Blink Indicators

Details audible alarms and specific LED blinking patterns.

Dip Switch Settings and Adjustments

Default S4 and S5 Dip Switch Settings

Shows the factory default settings for S4 and S5 dip switches.

Harvest and Pump-Out Timer Settings

Harvest Time Adjustment (S4 Dip Switches 1 & 2)

Explains how to adjust harvest time using S4 dip switches 1 and 2.

Pump-Out Time Settings (S4 Dip Switches 3 & 4)

Details pump-out time settings using S4 dip switches 3 and 4.

Pump-Out Frequency and Harvest Assist Settings

Pump-Out Frequency Control (S4 Dip Switch 5)

Describes the pump-out frequency control using S4 dip switch 5.

Harvest Pump Time (Assist Duration) (S4 Dip Switch 6)

Explains harvest pump time settings using S4 dip switch 6.

Harvest Assist, Freeze-Time Correction, and Factory Use

Harvest Pump Time and Freeze-Time Correction (S4 Dip Switch 7)

Covers settings for harvest assist and freeze-time correction.

Factory Use Setting (S4 Dip Switch 8)

Explains the purpose and setting of S4 dip switch 8 for factory use.

Freeze Timer and Float Switch Control Settings

Freeze Timer Settings (S4 Dip Switches 9 & 10)

Details freeze timer settings using S4 dip switches 9 and 10.

Float Switch Control Selector (S5 Dip Switch 1)

Explains the float switch control selector using S5 dip switch 1.

Refill, Harvest Time, and Anti-Slush Settings

Refill Counter Configuration (S5 Dip Switches 2 & 3)

Describes refill counter settings using S5 dip switches 2 and 3.

Minimum Harvest Time (S5 Dip Switch 4)

Details minimum harvest time settings using S5 dip switch 4.

Anti-Slush Control (S5 Dip Switch 5)

Explains the anti-slush control function using S5 dip switch 5.

Refrigeration Circuit Service Information

General Refrigeration Repair Warnings and Notices

Covers essential warnings and notices for refrigeration circuit repairs.

Refrigerant Recovery and Handling Procedures

Details the proper procedures for recovering and handling refrigerant.

Refrigeration System Maintenance Procedures

Brazing Techniques and Drier Replacement Guidelines

Provides guidance on brazing and replacing the refrigerant drier.

Evacuation and Recharge (R-404A) Process

Outlines the steps for evacuating and recharging the R-404A system.

Refrigerant Charging Procedures

Liquid Charging Procedures for R-404A Systems

Details the specific method for liquid charging R-404A systems.

Component Replacement Guidelines and Notes

Compressor, Expansion Valves, and Hot Gas Valves

Provides replacement notes for key refrigeration components.

Fan Motors and Thermistor Installation Notes

Offers guidance on installing fan motors and thermistors.

Icemaker Maintenance Schedule and Tasks

Routine Maintenance Tasks (Daily, Bi-Weekly, Monthly)

Lists regular maintenance tasks for daily, bi-weekly, and monthly intervals.

Annual Maintenance Tasks (Cleaning and Inspection)

Details annual tasks including cleaning and inspection of the icemaker.

Appliance Preparation for Periods of Non-Use

Procedure for Extended Storage or Sub-Freezing Temperatures

Outlines steps for preparing the appliance for storage or cold conditions.

Detailed Steps for Appliance Storage Preparation

Draining Water Lines and Cleaning Storage Bin

Provides detailed steps for draining water lines and cleaning the bin.

Appliance Disposal Requirements and Regulations

Refrigerant Recovery and Disposal Compliance

Covers requirements for refrigerant recovery and compliant disposal.

Specification and Performance Data Sheets

KMS-1402MLJ with SRK-15J: Electrical and Consumption

Presents electrical specs and consumption data for KMS-1402MLJ with SRK-15J.

KMS-1402MLJ with SRK-15J: Ice Production and Cycle Times

Provides performance data on ice production and cycle times.

Specification and Performance Data Sheets (SRK-15J3)

KMS-1402MLJ with SRK-15J3: Electrical and Consumption

Presents electrical specs and consumption data for KMS-1402MLJ with SRK-15J3.

KMS-1402MLJ with SRK-15J3: Ice Production and Cycle Times

Provides performance data on ice production and cycle times for the SRK-15J3.

SRK-15J Condensing Unit Specifications

SRK-15J Electrical, Dimensions, and Refrigeration Circuit

Details electrical, dimensional, and refrigeration circuit specifications for SRK-15J.

SRK-15J3 Condensing Unit Specifications

SRK-15J3 Electrical, Dimensions, and Refrigeration Circuit

Details electrical, dimensional, and refrigeration circuit specifications for SRK-15J3.

Wiring Diagrams Overview

Wire Harness Connections Between KMS and SRK Units

Illustrates the wiring harness connections linking the KMS and SRK units.

Wiring Diagram: KMS-1402MLJ with SRK-15J

SRK (1 Phase) Component Wiring Details

Shows specific wiring details for SRK (1 Phase) components.

Wiring Diagram: KMS-1402MLJ with SRK-15J3

SRK (3 Phase) Component Wiring Details

Shows specific wiring details for SRK (3 Phase) components.

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