Electrical Checks Of The Main Parts - Hitachi RASC-4HNPE Service Manual

8 Electrical checks of the main parts

Index
8.1 Inverter ................................................................................................................................................ 130
8.1.1 Specifications of inverter ............................................................................................................................. 130
8.1.2 Inverter time chart ....................................................................................................................................... 132
8.1.3 Protective function ....................................................................................................................................... 133
8.1.4 Overload control .......................................................................................................................................... 134
8.2 Thermistor ........................................................................................................................................... 135
8.2.1 Summary of thermistors for RASC unit ....................................................................................................... 135
8.2.2 Diagrams of thermistors for RASC unit ....................................................................................................... 136
8.3 Electronic expansion valve .................................................................................................................. 137
8.4 Pressure protection devices ................................................................................................................ 138
8.4.1 Location of the pressure protection devices ................................................................................................ 138
8.4.2 Description of the pressure protection devices ........................................................................................... 138
8.5 Variable frequency driver (VFD) .......................................................................................................... 139
8.6 Noise filters (NF) ................................................................................................................................. 140
8.7 Capacitor (CB1, CB2) (Only for RASC-(8/10)HNPE) .......................................................................... 141
8.8 Reactor (DCL) ..................................................................................................................................... 142
8.8.1 Reactor for RASC-(4-6)HNPE ..................................................................................................................... 142
8.8.2 Reactor for RASC-(8/10)HNPE ................................................................................................................... 142
8.9 Scroll compressor................................................................................................................................ 143
8.9.1 Reliable mechanism for low vibrating and low sound .................................................................................. 143
8.9.2 Principle of compression ............................................................................................................................. 143
129 SMGB0091 rev.2 - 11/2015
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E l e c t r i c a l c h e c k s o f t h e m a i n p a r t s
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