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Koolaire KYT0400A - User Manual

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Part Number STH063 9/17
Koolaire
KT Model Ice Machines
Technician’s Handbook

Table of Contents

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Summary

Safety Notices

Installation

Electrical Requirements

Specifications and warnings regarding electrical connections and grounding for ice machines.

Operation

Ice Making Sequence of Operation

Detailed explanation of the automatic ice-making cycle stages.

SAFETY LIMITS

Explanation of safety limits and their indicators on the control board.

Operational Checks

Maintenance

Troubleshooting

Diagnosing an Ice Machine that Will Not Run

A systematic approach to troubleshoot why the ice machine is not operating.

Ice Production Check

A method to verify the ice machine's actual ice production rate.

Water System Checklist

A guide to diagnose and resolve issues related to the ice machine's water system.

SAFETY LIMITS

Understanding the safety limits that can stop the ice machine operation.

Analyzing Discharge Pressure

Procedure for measuring and comparing discharge pressure readings to diagnose issues.

Analyzing Suction Pressure

Procedure for analyzing suction pressure to identify refrigeration system problems.

Harvest Valve Analysis

Methods for analyzing harvest valve failure modes and symptoms.

Comparing Evaporator Inlet;Outlet Temperatures

Procedure to compare evaporator inlet and outlet temperatures for diagnosing malfunctions.

Discharge Line Temperature Analysis

Analyzing discharge line temperature as a diagnostic tool for refrigeration issues.

Refrigeration Component Diagnostics

Comprehensive guide to diagnosing refrigeration component failures.

FINAL ANALYSIS

Interpreting diagnostic results to identify the specific refrigeration problem.

Refrigeration Component Diagnostic Chart

A chart to help diagnose refrigeration problems based on operational analysis.

Component Check Procedures

Compressor Electrical Diagnostics

Detailed steps to diagnose compressor electrical issues by checking resistance.

Refrigeration Components

Refrigerant Charge Verification

Importance and procedure for verifying the correct refrigerant charge in the system.

WATER REGULATING VALVE

Function and troubleshooting for the water regulating valve in water-cooled models.

Refrigerant Recovery;Evacuation

RECOVERY AND RECHARGING PROCEDURES

Procedures for safely recovering and recharging refrigerant in the system.

CHARGING PROCEDURES

Step-by-step guide for accurately charging the refrigeration system with refrigerant.

System Contamination Cleanup

DETERMINING SEVERITY OF CONTAMINATION

Methods to determine the level of contamination in the refrigeration system.

Contamination;Cleanup Chart

A chart correlating contamination symptoms with required cleanup procedures.

MILD SYSTEM CONTAMINATION CLEANUP PROCEDURE

Detailed steps for cleaning a system with mild contamination.

SEVERE SYSTEM CONTAMINATION CLEANUP PROCEDURE

Detailed steps for cleaning a system with severe contamination.

Koolaire KYT0400A Specifications

General IconGeneral
ModelKYT0400A
TypeIce Maker
Ice TypeCube
Weight160 lbs
Condenser TypeAir-cooled
RefrigerantR404A
Water Connection3/8" FPT
Power Supply115V/60Hz/1-ph
Width30 inches
Ice Production400 lbs per day
Ice Storage CapacityNot applicable

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