Manitowoc NEO - U0190;U0240;U0310 Tubing Schematic

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Part Number STH042 3/14 133

Tubing Schematic - U0190/U0240/U0310

HEAT EXCHANGER

STRAINER

DRIER

EVAPORATOR

HARVEST

SOLENOID VALVE

AIR OR

WATER

CONDENSER

EXPANSION

VALVE

RECEIVER

(WATER COOLED ONLY)

COMPRESSOR

Table of Contents

Safety Notices3
Table of Contents9
General Information13
- Model Numbers13
- How to Read a Model Number14
- Ice Machine Warranty Information15
  - Residential Warranty Coverage17
Installation21
- Location of Ice Machine21
- Ice Machine Clearance Requirements22
- Ice Machine Heat of Rejection22
- Leveling the Ice Machine23
- Electrical Requirements24
- Electrical Specifications25
- Drain Connections28
- Cooling Tower Applications28
- Maintenance31
- Interior Cleaning and Sanitizing31
- General31
- Cleaning and Sanitizing Procedure31
- Touch Pad Operation32
- Remove Parts for Cleaning36
- Preventative Maintenance Cleaning41
- Ice Machine Inspection42
- Cleaning the Condenser43
- Removal from Service/Winterization44
- Bin Removal45
Touch Pad Features47
- On/Off47
- Delay48
- Clean48
- Bin Full49
- Service49
Ice Making Sequence of Operation50
- Control Board Timers51
- Safety Limits52
- Energized Parts Chart54
Operational Checks56
- Ice Thickness Check56
- Ice Thickness Adjustment56
Troubleshooting57
Control Board Test Mode57
- Operating Ice Machine with bin and Touch Pad Removed57
- Diagnosing an Ice Machine that will Not Run58
Ice Machine Does Not Cycle into Harvest When Water Loses Contact with the Harvest Float Switch59
Ice Machine Cycles into Harvest before Water61
Ice Production Check63
Installation/Visual Inspection Checklist64
Water System Checklist65
Ice Formation Pattern66
Safety Limit Feature68
- Electrical System71
- Refrigeration System72
Analyzing Discharge Pressure75
Analyzing Suction Pressure77
Suction Pressure Low Checklist80
Harvest Valve81
Comparing Evaporator Inlet/Outlet85
Temperatures85
Discharge Line Temperature Analysis86
Refrigeration Component Diagnostics88
Final Analysis90
Refrigeration Component Diagnostic Chart91
Component Check Procedures95
- Main Fuse95
- Bin Switch96
- Touch Pad98
- Float Switch100
- Compressor Electrical Diagnostics102
  - Compressor Drawing Locked Rotor103
  - Compressor Drawing High Amps103
- Fan Cycle Control104
- High Pressure Cutout (HPCO) Control105
- Filter-Driers106
- Refrigerant Recovery/Evacuation108
- System Contamination Cleanup114
Cycle Times, 24 Hr. Ice Production and Refrigerant Pressure Charts121
- U0140 Self-Contained Air-Cooled122
- U0140 Self-Contained Water-Cooled123
- U0190 Self-Contained Air-Cooled124
- U0240 Self-Contained Air-Cooled125
- U0240 Self-Contained Water-Cooled126
- U0310 Self-Contained Air-Cooled127
- U0310 Self-Contained Water-Cooled128
Wiring Diagrams129
- Wiring Diagram - All Models130
- Electronic Control Board131
Tubing Schematic - U0140132
Tubing Schematic - U0190/U0240/U0310133

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