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Manuals
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Manitowoc Manuals
Ice Maker
QR0320A
Service manual
Manitowoc QR0320A Service Manual
Q series
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Model Numbers
Ice Cube Sizes
Ice Cube Sizes
How to Read a Model Number
Model/Serial Number Location
Warranty Coverage
General
Q200 – Q1000 Ice Machines
Ice Machine Dimensions
Q1300/Q1600/Q1800 Ice Machines (Cont.)
Ice Storage bin Dimensions
S970 Ice Storage Bins
Remote Condenser Dimensions
Location of Ice Machine
Ice Machine Heat of Rejection
Stacking Two Ice Machines on a Single Storage bin
Leveling the Ice Storage bin
Air-Cooled Baffle
Electrical Service
Section 2
Installation Instructions
Self-Contained Electrical Wiring Connections
Remote Electrical Wiring Connections
Remote Ice Machine with Single Circuit Model Condenser 115/1/60 or 208-230/1/60
Remote Ice Machine
With Single Circuit Model Condenser
Remote Ice Machine with Single Circuit Model Condenser 230/1/50
Water Supply and Drain Requirements
Water Supply
Water Inlet Lines
Drain Connections
Cooling Tower Applications (Water-Cooled Models)
Water Supply and Drain Line Sizing/Connections
Remote Condenser/Line Set Installation
Remote Ice Machines Refrigerant Charge
General
Guidelines for Routing Line Sets
Calculating Remote Condenser Installation Distances
Lengthening or Reducing Line Set Lengths
Connecting a Line Set
Remote Receiver Service Valve
Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers
Warranty
Head Pressure Control Valve
Fan Motor
Internal Condenser Volume
Condenser DT
Refrigerant Charge
Quick Connect Fittings
Non-Manitowoc Multi-Circuit Condenser Sizing Chart
Installation Check List
Additional Checks for Remote Models
Maintenance
Section 3
Component Identification
Operational Checks
General
Water Level
Ice Thickness Check
Harvest Sequence Water Purge
Cleaning the Condenser
Air-Cooled Condenser
Water-Cooled Condenser and Water Regulating Valve
Interior Cleaning and Sanitizing
General
Manitowoc's Patented Cleaning or Sanitizing Technology
Cleaning Procedure
Sanitizing Procedure
Automatic Cleaning System (Aucs")
Removal of Parts for Cleaning/Sanitizing
Water Treatment/Filtration
General
Filter Replacement Procedure
Removal from Service/Winterization
General
Self-Contained Air-Cooled Ice Machines
Water-Cooled Ice Machines
Remote Ice Machines
Aucs" Accessory
Q200/Q280/Q320/Q370/Q420/Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800 . 4-1
Self-Contained Air- and Water-Cooled
Initial Start-Up or Start-Up after Automatic Shut-Off
Freeze Sequence
Harvest Sequence
Automatic Shut-Off
Remote
Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800
Initial Start-Up or Start-Up after Automatic Shut-Off
Freeze Sequence
Remote Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800
Harvest Sequence
Automatic Shut-Off
Initial Start-Up or Start-Up after Automatic Shut-Off
Freeze Cycle
Water Inlet Valve Safety Shut-Off
Harvest Cycle
Automatic Shut-Off
Energized Parts Charts
Self-Contained Air- and Water-Cooled Models
Initial Start-Up or Start-Up after Automatic Shut-Off
Remote Models
Initial Start-Up or Start-Up after Automatic Shut-Off
Wiring Diagram Sequence of Operation
Self-Contained Models
Wiring Diagrams
Wiring Diagram Legend
Q200/Q280/Q320 - Self Contained - 1 Phase with Terminal Board
Q280/Q370 - Self Contained - 1 Phase Without Terminal Board
Q320 - Self Contained - 1 Phase Without Terminal Board
Q420/Q450/Q600/Q800/Q1000 - Self Contained
Phase with Terminal Board
Q420/Q450/Q600/Q800/Q1000 - Self Contained
Phase Without Terminal Board
Q800/Q1000 - Self Contained - 3 Phase with Terminal Board
Q800/Q1000 - Self Contained - 3 Phase Without Terminal Board
Q1300/Q1800 - Self Contained - 1 Phase with Terminal Board
Q1300/Q1600/Q1800 - Self Contained - 1 Phase Without Terminal Board
Q1300/Q1800 - Self Contained - 3 Phase with Terminal Board
Q1300/Q1600/Q1800 - Self Contained - 3 Phase Without Terminal Board
Q450/Q600/Q800/Q1000 - Remote - 1 Phase with Terminal Board
Q450/Q600/Q800/Q1000 - Remote - 1 Phase Without Terminal Board
Q800/Q1000 -Remote - 3 Phase with Terminal Board
Q800/Q1000 -Remote - 3 Phase Without Terminal Board
Q1300/Q1800 - Remote - 1 Phase with Terminal Board
Q1300/Q1600/Q1800 - Remote - 1 Phase Without Terminal Board
Q1300/Q1800 - Remote - 3 Phase with Terminal Board
Q1300/Q1600/Q1800 - Remote - 3 Phase Without Terminal Board
Component Specifications and Diagnostics
Main Fuse
Bin Switch
Compressor Electrical Diagnostics
PTCR Diagnostics
ICE/OFF/CLEAN Toggle Switch
Control Board Relays
Electronic Control Board
Ice Thickness Probe (Harvest Initiation)
How the Probe Works
Harvest/Safety Limit Light
Freeze Time Lock-In Feature
Maximum Freeze Time
Ice Thickness Check
Diagnosing Ice Thickness Control Circuitry
Water Level Control Circuitry
Water Level Probe Light
Water Inlet Valve Safety Shut-Off
Freeze Cycle Circuitry
Harvest Cycle Circuitry
Diagnosing Freeze Cycle Potable Water Level Control Circuitry
Diagnosing an Ice Machine that will Not Run
Section 7
Refrigeration System
Sequence of Operation
Self-Contained Air or Water -Cooled Models
Remote Models
Q1300/Q1600/Q1800 Refrigeration Tubing Schematics
Operational Analysis (Diagnostics)
General
Before Beginning Service
Ice Production Check
Installation/Visual Inspection Checklist
Water System Checklist
Ice Formation Pattern
Safety Limits
Analyzing Discharge Pressure During Freeze or Harvest Cycle
Analyzing Suction Pressure During Freeze Cycle
Single Expansion Valve Ice Machines - Comparing Evaporator Inlet and Outlet Temperatures
Harvest Valve Temperature Check
Discharge Line Temperature Analysis
How to Use the Refrigeration System Operational Analysis Tables
Refrigeration System Operational Analysis Tables
Harvest Pressure Regulating (H.P.R.) System
Headmaster Control Valve
Pressure Control Specifications and Diagnostics
Fan Cycle Control
High Pressure Cut-Out (HPCO) Control
Cycle Time/24 Hour Ice Production/Refrigerant Pressure Charts
Q200 Series
Q280 Series
Q320 Series
Q370 Series
Q420/450 Series
Q450 Series
Q600 Series
Q800 Series
Q1000 Series
Q1300 Series
Q1600 Series
Q1800 Series
Refrigerant Recovery/Evacuation and Recharging
Normal Self-Contained Model Procedures
Normal Remote Model Procedures
System Contamination Clean-Up
Replacing Pressure Controls Without Removing Refrigerant Charge
Filter-Driers
Total System Refrigerant Charges
Refrigerant Definitions
Refrigerant Re-Use Policy
HFC Refrigerant Questions and Answers
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Model Numbers
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Diagnosing Ice Machine that will Not Run
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ICE MACHINES
Q-Model
Service Manual
Service Manual
Service Manual
C
2004 Manitowoc Ice, Inc.
80-1597-3
6/04
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