Manitowoc Indigo Series - FREEZE CYCLE DISCHARGE PRESSURE LOW CHECKLIST

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168 Part Number Preliminary 6/11

FREEZE CYCLE DISCHARGE PRESSURE

LOW CHECKLIST

Improper Installation

• Refer to “Installation/Visual Inspection Checklist”

(page 162)

Air Cooled Condensers

• Defective head pressure control valve, won’t

bypass

(page 273)

• Defective fan cycle control, stuck closed

(page 273)

Water Cooled Condensers

• Water Regulating Valve out of adjustment

• Water Regulating Valve Defective

Other

• Undercharged

• Wrong type of refrigerant

• Non-Manitowoc components in system

• Liquid line/component restricted

Main Page

Default Chapter3
- Safety Notices3
- Table of Contents5
General Information13
How to Read a Model Number13
- Head Sections13
ICVD Condensing Units14
Ice Cube Sizes14
Model/Serial Number Location15
Model Numbers16
- Air-Water-Remote Condenser Models16
- Quietqube® Models17
Ice Machine Warranty Information18
- Owner Warranty Registration Card18
- Commercial Warranty Coverage19
- Residential Ice Machine Limited Warranty21
Ice Machine on a Dispenser Installation 3527
Installation on a Manitowoc bin27
Stacking Two Ice Machines on Asingle Storage bin27
- Ice Deflector27
- Location of Ice Machine28
- Head Section28
- Ice Beverage Models29
Installation27
Component Identification43
- I Model Single Evaporator Models43
- Ice Beverage Models44
- I Model Dual Evaporator45
- I Model Quad Evaporator Models46
- Icvd0695/Icvd0895/Icvd1095/Icvd1195/ Icvd1295/Icvd149547
- Icvd1895/Icvd219548
Maintenance49
- Cleaning and Sanitizing49
- Cleaning / Sanitizing Procedure52
Set-Up Menu83
- Language83
- Time & Date83
- Time Configuration85
- Units85
- Ice Clarity86
- LCD Brightness86
- Password on87
- Edit Password87
- Clean Minder87
- Iaucs Runtime88
- Air Filter88
- Water Filter89
- Luminice™ Reminder89
- USB Setup90
- Factory Defaults90
Service Menu91
Energy Saver Menu91
- Water Miser91
- Ice Program92
- Statistics92
- Service Menu93
- Data History94
- Real Time Data95
- Diagnostics97
- Manual Harvest98
- Replace Control Board98
- Press the Checkmark with Replace Control98
- Manually98
- USB Setup98
- Event Log Menu99
- Event Log100
- Upgrading Firmware with a Flash Drive or Transferring Setup Data to Multiple Machines102
- Exporting Data to a Flash Drive104
- Safe Operation Mode106
- Operational Checks107
  - General107
  - Ice Thickness Check108
- Sequence of Operation109
Troubleshooting133
- Safety Limits133
- Troubleshooting by Symptom134
Symptom #2 - Quietqube® Remote Condensing Unit Models189
- Symptom #2 Low Production, Long Freeze189
- Eration System Operational Analysis Table189
- QUIETQUBE® MODELS- Freeze Cycle Refrigeration System Operational Analysis Tables191
  - Eration System Operational Analysis Tables194
  - Eration System Operational Analysis Tables197
- Quietqube® Models - Freeze Cycle Refrigeration System Operational Analysis Table Procedures200
- Symptom #3 Harvest Problems Qui- Etqube® Remote Condensing Unit Models218
- Symptom #3 Quietqube® Models with ICVD Condensing Units219
- Symptom #4 Quietqube® Models with ICVD Condensing Units223
- Component Check Procedures227
- Electrical Components227
- Control Board, Display Board and Touch Pad227
- Control Board Relay Test230
- Upgrading Firmware with a Flash Drive or Transferring Setup Data to Multiple Machines231
- Exporting Data to a Flash Drive233
- Main Fuse235
- Bin Switch236
- Water Level Control Circuitry239
- Ice Thickness Probe (Harvest Initiation)243
- High Pressure Cutout (HPCO) Control247
  - Check Procedure248
  - Machine Is Running & Display Indicates Hpc Fault249
- Low Pressure Cutout (LPCO) Control250
- Fan Cycle Control251
- Thermistors252
- Specifications252
- Harvest Assist Air Pump255
- Compressor Electrical Diagnostics256
- Diagnosing Start Components258
Refrigeration Components263
- Head Pressure Control Valve263
- Harvest Pressure Regulating (HPR) System270
- Remote Condenser Only270
- Water Regulating Valve273
- Harvest Pressure Solenoid Valve274
- Suction Accumulator Operation Quietqube® Remote Condensing Unit275
Refrigerant Recovery/Evacuation276
- Self-Contained Model Procedure276
- Remote Condenser Model Procedure280
- Quietqube® Models286
- Connections287
- Refrigerant Charge288
- Recovery/Evacuation Procedures289
- Charging Procedures290
System Contamination Clean-Up292
- Determining Severity of Contamination292
- Cleanup Procedure294
- Replacing Pressure Controls Without Removing Refrigerant Charge297
- Liquid Line Filter-Driers299
- Suction Filter300
- Total System Refrigerant Charge301
Cycle Times/24-Hour Ice Production/Refrigerant Pressure Charts307
- I0300 Series308
- I0320 Series310
- I0450 Series312
- I0500 Series314
- I0520 Series317
- I0600 Series319
- I0680C/Icvd0695322
- Ib0690C/Icvd695323
- I0850 Series324
- Air Temp. Entering Condenser °F/°C324
- Based on Average Ice Slab Weight of324
- Operating Pressures324
- Air Temp324
- Entering324
- Discharge Pressure PSIG324
- I0870C327
- I1000 Series328
- I1200 Series333
Wiring Diagrams335
- Wiring Diagram Legend335
- I0300/I0320/I0450/I0500/I0520336
- I0500337
- I0600/I0850/I1000/I1200338
- I0600/I0850/I1000339
- I0670C/I0870C/I1070C/I1270C340
- Ib0690C/Ib0890C/Ib1090C341
- I1400/I1800342
- I1400/I1800343
- Electronic Control Board344
- Refrigeration Tubing Schematics345
- Self-Contained Air or Water -Cooled345
- Remote Condenser Models346
- Remote Condensing Unit Models347
- IB Models348

Manitowoc Indigo Series - FREEZE CYCLE DISCHARGE PRESSURE LOW CHECKLIST

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