Hitachi RCUE40AG2 Service Manual page 8

Contents
Content (Cont.)
5. Troubleshooting .......................................................................................................83
5.1. Initial check ........................................................................................................................................... 84
5.2. Troubleshooting .................................................................................................................................. 108
5.3. Analysis and countermeasure of abnormal running ........................................................................... 141
5.4. Thermistor characteristics .................................................................................................................. 145
6. Maintenance ..........................................................................................................149
6.1. Maintenance criteria ........................................................................................................................... 150
6.2. Maintenance criteria of Screw Compressor........................................................................................ 152
6.3. Maintenance of Water Quality ............................................................................................................ 153
6.4. 6.4. 6.4. Cleaning of water side heat exchanger .............................................................................................. Cleaning of water side heat exchanger Cleaning of water side heat exchanger ..............................................................................................
6.5. Check items in daily operation............................................................................................................ 160
6.6. Caution on handling of R407C ........................................................................................................... 160
6.7. Manual at compressor overall check and parts check........................................................................ 162
6.8. Refrigerant cycle diagrams ................................................................................................................. 166
6.9. Overhaul work .................................................................................................................................... 170
6.10. Vacuuming Procedure ........................................................................................................................ 170
6.11. Additional refrigerant insertion ............................................................................................................ 172
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SMGB0003 rev.0 - 10/2006
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