
05TA Service Manual
TABLE OF CONTENTS
iv
Page No
9. SERVICE OPERATIONS (Cont.)
High Potential Testing ....................................................................................................................................................9-10
Field Troubleshooting......................................................................................................................................................9-11
Sentronic Oil Pressure Safety Control FIGURE 9-11......................................................................................................9-12
Sentronic Oil Pressure Sensor .........................................................................................................................................9-13
Sentronic Oil Pressure Module........................................................................................................................................9-13
CoreSense Protection Module .........................................................................................................................................9-13
CoreSense Protection Faults and wiring FIGURE 9-11A................................................................................................9-14
Circulating Water Pump Motor .......................................................................................................................................9-15
Water Pump, FIGURE 9-12.............................................................................................................................................9-15
Cutter Gear Reducer ........................................................................................................................................................9-15
Gear Reducer, FIGURE 9-13...........................................................................................................................................9-15
Thawing Timer, FIGURE 9-14A .....................................................................................................................................9-16
Thawing Timer Wiring, FIGURE 9-14B .........................................................................................................................9-16
Condenser Cleaning.........................................................................................................................................................9-17
Air-Cooled Condenser.....................................................................................................................................................9-17
Pump Down .....................................................................................................................................................................9-17
Removal Of Refrigerant From Machine ..........................................................................................................................9-18
Refrigerant Leaks.............................................................................................................................................................9-18
Non-Condensable Gases..................................................................................................................................................9-18
Compressor Motor Burnout.............................................................................................................................................9-19
Capacity Control Valve (Compressor Unloader).............................................................................................................9-20
Copeland Compressor Unloader Valve, FIGURE 9-15...................................................................................................9-20
Loaded Operation (Freeze Period)...................................................................................................................................9-20
Unloaded Operation (During Thaw Only).......................................................................................................................9-20
Cutter Motor ....................................................................................................................................................................9-21
Cutter Gear Reducer ........................................................................................................................................................9-21
Water Tank Removal .......................................................................................................................................................9-22
Cutter & Bearing Removal/Installation ...........................................................................................................................9-22
Cutter Assembly, FIGURE 9-16......................................................................................................................................9-23
Cutter Drive Parts, FIGURE 9-17....................................................................................................................................9-23
Cutter Parts (Cylinder Ice), FIGURE 9-18A....................................................................................................................9-24
Cutter Parts (Crushed Ice), FIGURE 9-18B ....................................................................................................................9-25
Crushed Ice Production ...................................................................................................................................................9-25
Defrost Pressure Switch (DPS), FIGURE 9-19 ...............................................................................................................9-26
Pressure Relief Valves.....................................................................................................................................................9-26
Technical Service Bulletin: Water Conditioning .............................................................................................................9-27
10. OPTIONS AND ACCESSORIES
Power Monitor, FIGURE 10-1 ....................................................................................................................................... 10-2
Power Monitor, Parameters ............................................................................................................................................ 10-3
Programmable Logic Controller (PLC) .......................................................................................................................... 10-4
PLC Input/output Table .................................................................................................................................................. 10-6