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Manitowoc QY0804A User Manual

Manitowoc QY0804A
175 pages
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ICE MACHINES
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-Mode
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Service Manual
Service Manual
Service Manual
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2004 Manitowoc Ice, Inc.
80-1597-3
6/04

Table of Contents

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Manitowoc QY0804A Specifications

General IconGeneral
BrandManitowoc
ModelQY0804A
CategoryIce Maker
LanguageEnglish

Summary

General Information

Model and Identification Information

Details on model numbers, how to read them, and where to find identification numbers.

Warranty Coverage and Exclusions

Outlines warranty terms, exclusions, and requirements for authorized service.

Installation Instructions

Ice Machine and Bin Dimensions

Provides dimensional data for various ice machine and ice storage bin models.

Location, Stacking, and Heat Rejection

Covers site selection criteria, unit stacking, and heat rejection data.

Electrical Service and Wiring

Details electrical requirements and wiring diagrams for different models.

Water Supply, Drain, and Cooling Tower Requirements

Guidelines for water connections and specific requirements for cooling tower applications.

Remote Condenser and Line Set Installation

Procedures for installing remote condensers and associated refrigerant line sets.

Installation Checklists

Comprehensive checklists for verifying proper installation and remote model checks.

Maintenance

Component Identification and Operational Checks

Identifies key components and outlines routine checks for proper operation.

Cleaning and Sanitizing Procedures

Detailed steps for cleaning condensers, interiors, and removable parts.

Automatic Cleaning System and Component Removal

Information on the AuCS system and part disassembly for cleaning.

Specific Component Maintenance

Procedures for maintaining water dump valve, pump, probes, and tubes.

Water Treatment and Filtration

Information on water treatment systems and filter replacement procedures.

Removal from Service and Winterization

Procedures for preparing the machine for extended storage or freezing temperatures.

Ice Machine Sequence of Operation

Self-Contained Models Operation

Describes start-up, freeze, harvest, and auto shut-off for self-contained units.

Remote Models Operation

Describes start-up, freeze, harvest, and auto shut-off for remote units.

Water System Ice Making Sequence of Operation

System Start-Up, Freeze, and Safety Shut-Off

Covers initial start-up, freeze cycle, and safety features of the water system.

Harvest Cycle and Automatic Shut-Off

Describes water system operation during harvest and automatic shut-off.

Electrical System

Energized Parts Charts and Wiring Diagram Sequences

Lists energized components and explains wiring diagrams by operational sequence.

Specific Model Wiring Diagrams

Detailed wiring diagrams for various self-contained and remote models.

Component Specifications and Diagnostics

Specifications and diagnostic procedures for key electrical components.

Control Board Functions and Ice Thickness Probe Diagnostics

Details on the control board, relays, and troubleshooting the ice thickness probe.

Water Level Control Diagnostics and General Troubleshooting

Troubleshooting for water level control issues and general machine non-run conditions.

Refrigeration System

Sequence of Operation

Describes the refrigeration cycle for self-contained and remote models.

Diagnostic Procedures and Ice Formation Analysis

Methods for diagnosing issues through operational analysis and ice patterns.

Safety Limits and Pressure Analysis

Explanation of safety limits and procedures for analyzing pressures.

Temperature Analysis and Harvest Valve Checks

Procedures for analyzing temperatures and checking harvest valves.

Operational Analysis Tables Usage and HPR System

Guide for using diagnostic tables and explanation of the HPR system.

Headmaster Control Valve and Refrigerant Handling

Information on headmaster valves and refrigerant recovery/charging procedures.

System Contamination Cleanup and Refrigerant Definitions

Procedures for dealing with contaminated systems and refrigerant terminology.

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