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Koolaire KDT0400A - 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

Installation

Ice Machine Clearance Requirements

Specifies the minimum clearance needed around the ice machine for proper ventilation.

Electrical Requirements

Outlines voltage variation, fuse/circuit breaker, and total circuit ampacity requirements.

Water Service;Drains

Covers water supply treatment, inlet line installation, and drain connection guidelines.

Water Supply and Drain Line Sizing;Connections

Specifies required fittings and tubing sizes for water supply and drain lines.

Maximum Line Set Distance Formula

Explains how to calculate allowable line set distances for remote condensers.

Operation

Ice Making Sequence of Operation

Describes the step-by-step process of ice making, from purge to harvest cycle.

Ice Thickness Check

Explains how to inspect and adjust the ice bridge thickness for proper ice formation.

Maintenance

Interior Cleaning and Sanitizing

Covers the general procedure and precautions for cleaning and sanitizing the ice machine interior.

Troubleshooting

Diagnosing an Ice Machine that Will Not Run

Provides a step-by-step guide to troubleshoot why the ice machine is not starting.

Ice Machine Does Not Cycle Into Harvest when Water Loses Contact with the Harvest Float Switch

Addresses issues where the machine fails to enter harvest mode due to float switch problems.

Ice Machine Cycles Into Harvest Before Water Loses Contact with the Harvest Float Switch

Troubleshoots premature harvest cycles potentially caused by float switch malfunctions.

Safety Limits

Explains how to determine which safety limit stopped the machine and how they are indicated.

Analyzing Discharge Pressure

Guides on measuring and comparing discharge pressure to diagnose refrigeration issues.

Analyzing Suction Pressure

Guides on measuring and comparing suction pressure to diagnose refrigeration issues.

Refrigeration Component Diagnostics

Introduces charts and procedures for diagnosing refrigeration component defects.

Procedure

Outlines the general procedure for using diagnostic charts and checklists.

Final Analysis

Explains how to interpret diagnostic results to identify the root cause of problems.

Refrigeration Component Diagnostic Chart

A chart correlating operational analysis findings with potential refrigeration problems.

Component Check Procedures

Compressor Electrical Diagnostics

Covers checking resistance values and motor windings for compressor electrical issues.

Fan Cycle Control

Details the function, specifications, and check procedure for the fan cycle control.

High Pressure Cutout (HPCO) Control

Explains the function, specifications, and check procedure for the HPCO control.

Refrigeration Components

Introduces key refrigeration components and their diagnostics.

Refrigerant Charge Verification

Outlines how to verify the correct refrigerant charge and its importance.

Refrigerant Recovery;Evacuation

Recovery and Recharging Procedures

Charging Procedures

System Contamination Cleanup

Mild System Contamination Cleanup Procedure

Mild System Contamination Cleanup Procedure

Step-by-step instructions for cleaning mild system contamination.

Severe System Contamination Cleanup Procedure

Severe System Contamination Cleanup Procedure

Step-by-step instructions for cleaning severe system contamination, including component replacement.

Replacing Pressure Controls Without Removing Refrigerant Charge

Diagrams

KT0300, KT0500, KT0700, KT1000 1 PH SELF-CONTAINED AIR;WATER-COOLED

KT0420 1 PH SELF-CONTAINED AIR;WATER-COOLED

KT1000 1 PH REMOTE AIR-COOLED CONDENSER

KT1700 1 PH SELF-CONTAINED AIR;WATER-COOLED

KT1700 3 PH SELF-CONTAINED AIR;WATER-COOLED

KT1700 1 PH REMOTE AIR-COOLED CONDENSER

KT1700 3 PH REMOTE AIR-COOLED CONDENSER

ELECTRONIC CONTROL BOARD

Refrigeration Tubing Schematics

REMOTE AIR-COOLED CONDENSER

Koolaire KDT0400A Specifications

General IconGeneral
BrandKoolaire
ModelKDT0400A
CategoryIce Maker
LanguageEnglish

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