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Manitowoc QD0323W User Manual

Manitowoc QD0323W
175 pages
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ICE MACHINES
Q
-Mode
l
Service Manual
Service Manual
Service Manual
C
2004 Manitowoc Ice, Inc.
80-1597-3
6/04

Table of Contents

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Manitowoc QD0323W Specifications

General IconGeneral
BrandManitowoc
ModelQD0323W
CategoryIce Maker
LanguageEnglish

Summary

Attend A Manitowoc Factory Service School

Section 1 General Information

Model Numbers

Details the different model numbers covered by the manual.

How to Read a Model Number

Explains the coding system used in model numbers.

Ice Cube Sizes

Describes the dimensions of the ice cubes produced.

Model/Serial Number Location

Information on where to find the model and serial number decals.

Warranty Coverage

Details on the warranty provided for parts, labor, and exclusions.

Section 2 Installation Instructions

General Installation Guidelines

Refer to Installation Manual for complete installation guidelines.

Ice Machine Dimensions

Provides dimensional data for various ice machine models.

Ice Storage Bin Dimensions

Provides dimensional data for different ice storage bin models.

Remote Condenser Dimensions

Provides dimensional data for remote condenser models.

Location of Ice Machine

Criteria for selecting an appropriate location for the ice machine.

Stacking Two Ice Machines on a Single Storage Bin

Instructions for stacking two ice machines on one storage bin.

Ice Machine Heat of Rejection

Provides BTU/hr heat rejection data for ice machines.

Leveling the Ice Storage Bin

Procedure for leveling the ice storage bin correctly.

Air-Cooled Baffle Installation

Instructions for installing the air baffle to prevent condenser air recirculation.

Electrical Service Requirements

Details on voltage, fuse/circuit breaker, and ampacity.

Self-Contained Electrical Wiring Connections

Wiring diagrams for self-contained models.

Remote Electrical Wiring Connections

Wiring diagrams for remote ice machine models.

Water Supply and Drain Requirements

Guidelines for water supply, inlet lines, and drain connections.

Water Supply and Drain Line Sizing/Connections

Table detailing water supply and drain line requirements.

Remote Condenser/Line Set Installation

Instructions for installing remote condensers and line sets.

Guidelines for Routing Line Sets

Best practices for routing refrigerant lines for performance and service.

Calculating Remote Condenser Installation Distances

Formula and steps for calculating maximum line set distances.

Connecting a Line Set

Procedure for connecting the refrigerant line sets.

Remote Receiver Service Valve

Instructions for opening the receiver service valve.

Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers

Guidelines and warranty information for using non-Manitowoc condensers.

Installation Check List

A checklist of items to verify during ice machine installation.

Section 3 Maintenance

Component Identification

Diagrams identifying key components of the ice machine.

Operational Checks

Procedures for performing operational checks on the ice machine.

Ice Thickness Check

Procedure for checking and adjusting ice thickness probe settings.

Cleaning the Condenser

Steps for cleaning air-cooled and water-cooled condensers.

Interior Cleaning and Sanitizing

Procedures for cleaning and sanitizing the ice machine interior.

Water Treatment/Filtration

Information on water filtration systems and filter replacement.

Removal from Service/Winterization

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

Section 4 Ice Machine Sequence of Operation

Self-Contained Air- and Water-Cooled Sequence

Describes the operational sequence for self-contained models.

Remote Ice Machine Sequence

Describes the operational sequence for remote ice machines.

Section 5 Water System Ice Making Sequence of Operation

Water System Sequence of Operation

Explains the water system's role in the ice making process.

Section 6 Electrical System

Energized Parts Charts

Charts detailing which parts are energized during each ice making sequence.

Wiring Diagrams

Contains various electrical wiring diagrams for different models.

Component Specifications and Diagnostics

Specifications and diagnostic procedures for main fuse, bin switch, etc.

Compressor Electrical Diagnostics

Procedures for diagnosing compressor electrical issues.

PTCR Diagnostics

Explanation of PTCR function and troubleshooting.

Toggle Switch and Control Board Relays

Function and testing of toggle switch and control board relays.

Electronic Control Board

Diagram of the electronic control board and its connections.

Ice Thickness Probe Diagnostics

How the ice thickness probe works and diagnostic procedures.

Water Level Control Circuitry

Details on water level probe function and circuitry.

Diagnosing An Ice Machine That Will Not Run

Troubleshooting steps for an ice machine that fails to start.

Section 7 Refrigeration System

Sequence of Operation

Describes the refrigeration sequence for self-contained models.

Remote Models Sequence of Operation

Describes the refrigeration sequence for remote models.

Refrigeration Tubing Schematics

Diagrams of refrigeration tubing for specific models.

Operational Analysis (Diagnostics)

Guides for analyzing refrigeration system malfunctions.

Before Beginning Service

Questions to ask and information to gather before service.

Ice Production Check

Procedure to check and calculate ice production rates.

Installation/Visual Inspection Checklist

Checklist for installation and visual inspection of components.

Water System Checklist

Troubleshooting checklist for water system problems.

Ice Formation Pattern Analysis

Analysis of evaporator ice formation patterns for diagnostics.

Safety Limits

Explanation of safety limit controls and their operation.

Analyzing Why Safety Limits May Stop the Ice Machine

Understanding the causes of safety limit shutdowns.

Safety Limit #1

Troubleshooting for Safety Limit #1 (exceeding freeze time).

Safety Limit #2

Troubleshooting for Safety Limit #2 (exceeding harvest time).

Analyzing Discharge Pressure During Freeze or Harvest Cycle

Procedure to analyze discharge pressure during ice cycles.

Analyzing Suction Pressure During Freeze Cycle

Procedure to analyze suction pressure during the freeze cycle.

Single Expansion Valve Ice Machines - Comparing Evaporator Inlet and Outlet Temperatures

Procedure to compare evaporator inlet and outlet temperatures.

Harvest Valve Temperature Check

Procedure to check harvest valve temperature for proper operation.

Discharge Line Temperature Analysis

Analysis of discharge line temperature for diagnostic purposes.

How to Use the Refrigeration System Operational Analysis Tables

Guide on using operational analysis tables for diagnosis.

Refrigerant Recovery/Evacuation and Recharging

Procedures for recovering, evacuating, and recharging refrigerant.

Filter-Driers

Information on filter-driers and their importance.

Total System Refrigerant Charges

Table of refrigerant charge amounts for various models.

Refrigerant Definitions

Definitions of terms related to refrigerant handling.

Refrigerant Re-Use Policy

Manitowoc's policy on the re-use of refrigerants.

HFC Refrigerant Questions and Answers

Answers to common questions about HFC refrigerants.

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