Manitowoc QR0420A Ice Machine Manuals

Manuals and User Guides for Manitowoc QR0420A Ice Machine. We have 1 Manitowoc QR0420A Ice Machine manual available for free PDF download: Service Manual

Manitowoc QR0420A Service Manual (175 pages)

Q Series

Brand: Manitowoc | Category: Ice Maker | Size: 2 MB

Table of Contents
5
Model Numbers

11
- Ice Cube Sizes
  11
Ice Cube Sizes

12
How to Read a Model Number

12
Model/Serial Number Location

12
Warranty Coverage

13
- General
  15
- Q200 – Q1000 Ice Machines
  16
Ice Machine Dimensions

17
- Q1300/Q1600/Q1800 Ice Machines (Cont.)
  17
Ice Storage bin Dimensions

18
- S970 Ice Storage Bins
  18
Remote Condenser Dimensions

18
Location of Ice Machine

19
Ice Machine Heat of Rejection

20
Stacking Two Ice Machines on a Single Storage bin

20
Leveling the Ice Storage bin

20
Air-Cooled Baffle

21
Electrical Service

21
Section 2

22
Installation Instructions

22
Self-Contained Electrical Wiring Connections

23
Remote Electrical Wiring Connections

24
Water Supply and Drain Requirements

25
- Water Supply
  25
- Water Inlet Lines
  25
- Drain Connections
  25
Cooling Tower Applications (Water-Cooled Models)

25
- Water Supply and Drain Line Sizing/Connections
  26
Remote Condenser/Line Set Installation

27
Remote Ice Machine Usage with Non-Manitowoc Multi-Circuit Condensers

31
- Warranty
  31
- Head Pressure Control Valve
  31
- Fan Motor
  31
- Internal Condenser Volume
  31
- Condenser DT
  31
- Refrigerant Charge
  31
- Quick Connect Fittings
  31
- Non-Manitowoc Multi-Circuit Condenser Sizing Chart
  32
Installation Check List

33
Additional Checks for Remote Models

33
Maintenance

35
Section 3

35
Component Identification

35
Operational Checks

36
- General
  36
- Water Level
  36
- Ice Thickness Check
  36
- Harvest Sequence Water Purge
  37
Cleaning the Condenser

37
- Air-Cooled Condenser
  37
- Water-Cooled Condenser and Water Regulating Valve
  38
Interior Cleaning and Sanitizing

39
Water Treatment/Filtration

48
- General
  48
- Filter Replacement Procedure
  48
Removal from Service/Winterization

49
- General
  49
- Self-Contained Air-Cooled Ice Machines
  49
- Water-Cooled Ice Machines
  49
- Remote Ice Machines
  49
- Aucs" Accessory
  49
Q200/Q280/Q320/Q370/Q420/Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800 . 4-1

51
Self-Contained Air- and Water-Cooled

51
- Initial Start-Up or Start-Up after Automatic Shut-Off
  51
- Freeze Sequence
  51
- Harvest Sequence
  52
- Automatic Shut-Off
  52
Remote

53
Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800

53
Energized Parts Charts

57
Wiring Diagram Sequence of Operation

59
- Self-Contained Models
  59
Wiring Diagrams

73
Component Specifications and Diagnostics

94
- Main Fuse
  94
- Bin Switch
  94
- Compressor Electrical Diagnostics
  96
- PTCR Diagnostics
  97
- ICE/OFF/CLEAN Toggle Switch
  100
- Control Board Relays
  100
- Electronic Control Board
  101
Ice Thickness Probe (Harvest Initiation)

103
- How the Probe Works
  103
- Harvest/Safety Limit Light
  103
- Freeze Time Lock-In Feature
  103
- Maximum Freeze Time
  103
- Ice Thickness Check
  103
- Diagnosing Ice Thickness Control Circuitry
  104
Water Level Control Circuitry

106
Diagnosing an Ice Machine that will Not Run

110
Section 7

113
Refrigeration System

113
Sequence of Operation

113
Operational Analysis (Diagnostics)

120
Pressure Control Specifications and Diagnostics

144
- Fan Cycle Control
  144
- High Pressure Cut-Out (HPCO) Control
  144
Cycle Time/24 Hour Ice Production/Refrigerant Pressure Charts

145
- Q200 Series
  145
- Q280 Series
  146
- Q320 Series
  147
- Q370 Series
  148
- Q420/450 Series
  149
- Q450 Series
  150
- Q600 Series
  150
- Q800 Series
  152
- Q1000 Series
  153
- Q1300 Series
  155
- Q1600 Series
  156
- Q1800 Series
  157
Refrigerant Recovery/Evacuation and Recharging

159
- Normal Self-Contained Model Procedures
  159
- Normal Remote Model Procedures
  161
- System Contamination Clean-Up
  165
- Replacing Pressure Controls Without Removing Refrigerant Charge
  167
- Filter-Driers
  169
- Total System Refrigerant Charges
  169
- Refrigerant Definitions
  170
- Refrigerant Re-Use Policy
  171
- HFC Refrigerant Questions and Answers
  172

Manitowoc Categories

Ice Maker Construction Equipment Accessories Commercial Food Equipment Dispenser

More Manitowoc Manuals

Manitowoc QR0420A Ice Machine Manuals

Manitowoc QR0420A Service Manual (175 pages)

Table of Contents

Model Numbers

Ice Cube Sizes

How to Read a Model Number

Model/Serial Number Location

Warranty Coverage

Ice Machine Dimensions

Ice Storage bin Dimensions

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

Water Supply and Drain Requirements

Cooling Tower Applications (Water-Cooled Models)

Remote Condenser/Line Set Installation

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

Installation Check List

Additional Checks for Remote Models

Maintenance

Section 3

Component Identification

Operational Checks

Cleaning the Condenser

Interior Cleaning and Sanitizing

Water Treatment/Filtration

Removal from Service/Winterization

Q200/Q280/Q320/Q370/Q420/Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800 . 4-1

Self-Contained Air- and Water-Cooled

Remote

Q450/Q600/Q800/Q1000/Q1300/Q1600/Q1800

Energized Parts Charts

Wiring Diagram Sequence of Operation

Wiring Diagrams

Component Specifications and Diagnostics

Ice Thickness Probe (Harvest Initiation)

Water Level Control Circuitry

Diagnosing an Ice Machine that will Not Run

Section 7

Refrigeration System

Sequence of Operation

Operational Analysis (Diagnostics)

Pressure Control Specifications and Diagnostics

Cycle Time/24 Hour Ice Production/Refrigerant Pressure Charts

Refrigerant Recovery/Evacuation and Recharging

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