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Manitowoc QY1094N User Manual

Manitowoc QY1094N
175 pages
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ICE MACHINES
Q
-Mode
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Service Manual
Service Manual
Service Manual
C
2004 Manitowoc Ice, Inc.
80-1597-3
6/04

Table of Contents

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Manitowoc QY1094N Specifications

General IconGeneral
ModelQY1094N
Ice TypeDice
Phase1
Power Supply208-230V/60/1
Daily Ice Production1090 lbs
Condenser TypeAir Cooled
Voltage208-230
Hertz60 Hz
Ice Production1090 lbs/day
Ice StorageNot Included

Summary

Section 1 General Information

Model Numbers

Covers model number structure and identification for various ice machine models.

Model/Serial Number Location

Details the required locations for model and serial number decals on the unit.

Warranty Coverage

Details parts, labor, and exclusions for the ice machine warranty.

Section 2 Installation Instructions

Ice Machine Dimensions

Provides physical dimensions for various ice machine models.

Electrical Service

Covers voltage, fuse/breaker requirements, and minimum circuit ampacity.

Water Supply and Drain Requirements

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

Remote Condenser/Line Set Installation

Instructions for installing remote condensers and refrigerant lines.

Section 3 Maintenance

Component Identification

Identifies key components of the ice machine for service.

Operational Checks

Outlines checks to ensure proper operation of the ice machine.

Cleaning the Condenser

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

Interior Cleaning and Sanitizing

Steps for cleaning and sanitizing the ice machine interior.

Removal from Service/Winterization

Procedures for preparing the machine for storage or freezing temperatures.

Section 4 Ice Machine Sequence of Operation

Self-Contained Air- and Water-Cooled

Details the operational sequence for self-contained ice machine models.

Remote

Details the operational sequence for remote ice machine models.

Section 6 Electrical System

Wiring Diagram Sequence of Operation

Explains the sequence of operation based on wiring diagrams.

Component Specifications and Diagnostics

Covers specifications and diagnostic procedures for key electrical components.

Ice Thickness Probe (Harvest Initiation)

Explains the function and diagnostics of the ice thickness probe.

Diagnosing An Ice Machine That Will Not Run

Provides a troubleshooting guide for machines that fail to start.

Section 7 Refrigeration System

Sequence of Operation

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

Operational Analysis (Diagnostics)

Guides on analyzing system performance and diagnosing malfunctions.

Before Beginning Service

Essential questions to ask before starting diagnostic procedures.

Ice Production Check

How to check ice production based on operating conditions.

Analyzing Discharge Pressure During Freeze or Harvest Cycle

Procedures for analyzing discharge pressure to diagnose issues.

Analyzing Suction Pressure During Freeze Cycle

Procedures for analyzing suction pressure during the freeze cycle.

Harvest Valve Temperature Check

Method for checking harvest valve operation via temperature.

Pressure Control Specifications and Diagnostics

Details on pressure controls like HPCO and fan cycle control.

Cycle Time/24 Hour Ice Production/Refrigerant Pressure Charts

Charts for performance data and operating pressures by model.

Section 7 Refrigeration System (continued)

Refrigerant Recovery/Evacuation and Recharging

Procedures for handling refrigerant safely and effectively.

System Contamination Clean-Up

Steps for cleaning systems with moisture or burnout contamination.

Replacing Pressure Controls Without Removing Refrigerant Charge

Method for replacing components without venting refrigerant.

Filter-Driers

Information on recommended filter-driers and their importance.

HFC Refrigerant Questions and Answers

FAQs about HFC refrigerants and their service.

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