Manitowoc Indigo NXT Series Technician's Handbook

Part Number: 000015431 Rev01 5/19 17
Component Check Procedures
Control Board, Display And Touchscreen ...127
Operating an ice machine without a
Touchscreen...........................129
Control Board Relay Test.................130
Programming A Replacement Control Board 131
USB Flash Drive Specifications and Formatting .
.....................................132
Exporting Data to a Flash Drive ...........133
Upgrading Firmware with a Flash Drive ....134
Main Fuse ............................135
Bin Switch ............................136
Water Level Control Circuitry .............139
Ice Thickness Probe (Initiates Harvest) .....142
Bin Level Probe ........................146
Thermistors ...........................148
High Pressure Cutout (HPCO) Control ......151
Low Pressure Cutout (LPCO) Control .......152
Compressor Time Delay .................153
Fan Cycle Control.......................154
Harvest Assist Air Pump .................155
Compressor Electrical Diagnostics .........156
Diagnosing Start Components ............158
Refrigeration Components...................159
Head Pressure Control Valve .............159
Suction Accumulator Operation...........165
Recovery/Evacuation/Charging Procedures
QuietQube® Models ........................166
Connections...........................167
Recovery/Evacuation Procedures .........168
Charging Procedures....................169
System Contamination Clean-Up .............170
Determining Severity of Contamination ....170
Contamination Cleanup Chart ............171
Cleanup Procedure .....................172
Liquid Line Filter-Driers..................175
Suction Filter ..........................175
Replacing Pressure Controls Without Removing
Refrigerant Charge .....................176
Total System Refrigerant Charge
QuietQube® CVD Models....................177

Manitowoc Indigo NXT Series Specifications

General

Model	Indigo NXT Series
Ice Production	Varies by model
Ice Storage	Varies by model
Energy Efficiency	Energy Star certified models available
Refrigerant	R290 (varies by model)
Cooling System	Air-cooled or water-cooled (varies by model)
Condenser Type	Air-cooled, Water-cooled, or Remote
Touch Display	Yes, with intuitive interface
Control	Cleaning Alerts
Features	Self-cleaning, remote monitoring, energy-saving modes
Power Supply	Varies by model (typically 115V or 208-230V)
Dimensions (H x W x D)	Varies by model
Weight	Varies by model