Manitowoc IBT1020C Technician's Handbook

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122 Part Number: 000015431 Rev01 5/19

NO

YES

YES

YES

YES

No; Harvest PSI Normal

Feels Warm to Hot

Cold

Feel temperature of

Receiver after 30 seconds

into harvest cycle

Is Head Pressure low &

Suction Pressure low in harvest?

Replace

Harvest

Valve

Is Head Pressure high &

Suction Pressure low

in harvest?

Not a refrigeration problem,

Clean & Inspect Evaporator

Table of Contents

Default Chapter3
- Safety Notices3
- Definitions4
- Table of Contents13
General Information19
- How to Read a Model Number19
  - Head Sections19
  - CVD Condensing Units20
- Ice Cube Sizes20
- Model/Serial Number Location21
- Warranty22
  - Warranty Registration22
- Model Numbers23
  - Quietqube® Models23
- Luminice® II24
- Location of Ice Machine26
- Clearance Requirements29
- Dual Evaporator Model Installation on a Manitowoc30
- Bin30
- Ice Machine on a Dispenser Installation31
- Water Supply and Drains32
- Lineset Applications33
- Quietqube® Remote Condensing Unit34
- Additional Refrigerant Charge for 51' to 100' Line35
- Sets35
Cleaning and Sanitizing37
- General37
- Cleaning/Sanitizing Procedure38
- Preventative Maintenance Cleaning Procedure38
- Iaucs38
- Exterior Cleaning38
Touchscreen Operation for the Clean Cycle39
- Starting a Clean Cycle39
- Water Curtain/Damper Operation During the Clean Cycle39
- Pausing a Clean Cycle39
- Power Interruption During Clean Cycle39
- Aborting a Clean Cycle39
Cleaning/Sanitizing Procedure40
- Cleaning Procedure40
- Sanitizing Procedure43
- Parts Removal for Cleaning/Sanitizing45
Preventative Maintenance Cleaning Procedure54
Removal from Service/Winterization56
Operation57
Operational Checks57
- General57
- Ice Thickness Check58
Sequence of Operation60
- Quietqube® Models60
- Initial Start-Up or Start-Up after60
- Automatic Shut-Off60
- Freeze Sequence61
- Harvest Sequence63
- Automatic Shut-Off64
- Restart after Automatic Shut-Off64
Menu Navigation69
- Touch Screen Features69
  - Home Screen Icon Descriptions71
- Setup Wizard73
- Menu Navigation Overview74
Troubleshooting81
- Event Log82
- Event Log Detail83
- Thaw Cycle88
- Safe Operation Mode89
- E01 Long Freeze Cycle90
- E02 Long Harvest Cycle90
- Analyzing Why a Service Fault (E01 & E02)90
- Stopped the Ice Machine90
- E01 Long Freeze91
- E02 Long Harvest92
Troubleshooting by Symptom93
- Symptom #1 Ice Machine Stops Running93
- Symptom #2 Ice Machine Has a Long Freeze93
- Cycle93
- Symptom #3 will Not Harvest, Cubes Normal93
- Symptom #4 will Not Harvest Cubes Melted93
- Reset to Factory Defaults94
- Symptom #1 Ice Machine will Not Run95
- Diagnosing a Condensing Unit98
- That will Not Run98
- Symptom #2 Low Production, Long Freeze Cycle99
- Symptom #3 Harvest Problems115
- Failure Type and Symptoms119
- Condensing Units121
- Condensing Units125
Component Check Procedures127
- Control Board, Display and Touchscreen127
- Operating an Ice Machine Without a129
- Touchscreen129
- Control Board Relay Test130
- Programming a Replacement Control Board131
- USB Flash Drive Specifications and Formatting132
- Exporting Data to a Flash Drive133
- Upgrading Firmware with a Flash Drive134
- Main Fuse135
- Bin Switch136
- Water Level Control Circuitry139
- Ice Thickness Probe (Initiates Harvest)142
- Bin Level Probe146
- Thermistors148
- High Pressure Cutout (HPCO) Control151
- Low Pressure Cutout (LPCO) Control152
- Compressor Time Delay153
- Fan Cycle Control154
- Harvest Assist Air Pump155
- Compressor Electrical Diagnostics156
- Diagnosing Start Components158
- Refrigeration Components159
  - Head Pressure Control Valve159
  - Suction Accumulator Operation165
- Recovery/Evacuation/Charging Procedures166
- Quietqube® Models166
  - Connections167
  - Recovery/Evacuation Procedures168
  - Charging Procedures169
- System Contamination Clean-Up170
  - Determining Severity of Contamination170
  - Contamination Cleanup Chart171
  - Cleanup Procedure172
  - Liquid Line Filter-Driers175
  - Suction Filter175
  - Replacing Pressure Controls Without Removing176
  - Refrigerant Charge176
- Total System Refrigerant Charge177
- Quietqube® CVD Models177
Cycle Times/24-Hour Ice Production/Refrigerant179
Pressure Charts179
- If0600C/Cvdf0600180
- Ibf0620C/Cvdf0600181
- Ibf0820C/Cvdf0900182
- If0900C/Cvdf0900183
- Ibt1020C/Cvdt1200184
- It1200C/Cvdt1200185
- If1400C/Cvdf1400186
- If1800C/Cvdf1800187
- If2100C/Cvdf2100188
Wiring Diagrams189
- Wiring Diagram Legend189
- IF0600C/IBF0620C/IBF0820C/IF0900C 1Ph190
- IT1200C/IBT1020C 1Ph192
- IF1400C/IF1800C/IF2100C 1Ph194
- CVD 1Ph Condensing Unit196
- CVD 3Ph Condensing Unit198
Electronic Control Board200
Refrigeration Tubing Schematics202
- If0600C/Cvdf0600 Ib0620C/Cvdf0600 Ibf0820/Cvdf0900 If0900C/Cvdf0900202
- Ibt1020C/Cvdt1200 It1200C/Cvdt1200204
Dual Evaporators206
- If1400C/If1800C206
- If2100C208

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Manitowoc IBT1020C Specifications

General

Brand	Manitowoc
Model	IBT1020C
Category	Ice Maker
Language	English

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