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16 Part Number: 000015430 Rev 02 5/20
Component Check Procedures
Electrical Components.........................135
Control Board, Display And Touchscreen ...135
Control Board Relay Test.................138
Programming A Replacement Control Board 139
USB Flash Drive Specifications and Formatting .
.....................................140
Exporting Data to a Flash Drive ...........141
Upgrading Firmware with a Flash Drive ....142
Main Fuse ............................143
Bin Switch ............................144
Water Level Control Circuitry .............147
Ice Thickness Probe (Initiates Harvest) .....151
Bin Level Probe ........................155
Thermistors ...........................157
High Pressure Cutout (HPCO) Control ......161
Fan Cycle Control.......................164
Harvest Assist Air Pump .................165
Compressor Electrical Diagnostics .........166
Diagnosing Start Components ............168
Refrigeration Components.....................171
Head Pressure Control Valve .............171
Harvest Pressure Regulating (HPR) System
Remote Condenser Only.................175
Water Regulating Valve..................178
Refrigerant Recovery/Evacuation ..............179
Definitions ............................179
Refrigerant Re-Use Policy ................180
Self-Contained Model Procedure .........182
Remote Condenser Model Procedure ......186
System Contamination Clean-Up...............190
Determining Severity Of Contamination ....190
Cleanup Procedure .....................192
Liquid Line Filter-Driers........................196
Replacing Pressure Controls Without Removing
Refrigerant Charge ............................197
Total System Refrigerant Charge ...............198
Self-Contained Air & Water Cooled . . . . . . . .198
Remote Condenser .....................199
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