Hitachi RPI-0.8FSG1 Service Manual page 7

No.
3. MAIN PARTS .............................................................................................................................................. 3-1
3.1 Inverter ............................................................................................................................................... 3-1
3.1.1 Specifications of Inverter (For 380/415V, 50Hz and 380V, 60Hz Power Source) ......................... 3-1
3.1.2 Specifications of Inverter (For 220V, 60Hz Power Source) .......................................................... 3-3
3.1.3 Arrangement of Inverter Power Unit ............................................................................................. 3-5
3.1.4 Inverter Time Chart ....................................................................................................................... 3-9
3.1.5 Protective Function ....................................................................................................................... 3-10
3.1.6 Overload Control .......................................................................................................................... 3-11
3.2 AC Chopper ....................................................................................................................................... 3-12
3.3 Auto-Louver Mechanism .................................................................................................................... 3-14
3.3.1 4-Way Cassette Type ................................................................................................................... 3-14
3.3.2 2-Way Cassette Type ................................................................................................................... 3-15
3.3.3 Ceiling Type ..................................................................................................................................... 3-16
3.4 Scroll Compressor ............................................................................................................................. 3-17
3.4.1 Reliable Mechanism for Low Vibration and Low Sound ............................................................... 3-17
3.4.2 Principle of Compression .............................................................................................................. 3-17
3.4.3 Structure ....................................................................................................................................... 3-18
3.5 Thermistor .......................................................................................................................................... 3-20
3.5.1 Thermistor for Indoor Unit ............................................................................................................. 3-20
3.5.2 Thermistor for Outdoor Unit .......................................................................................................... 3-21
3.6 Electronic Expansion Valve ................................................................................................................ 3-23
3.6.1 Electronic Expansion Valve for Outdoor Units .............................................................................. 3-23
3.6.2 Electronic Expansion Valve for Indoor Units ................................................................................. 3-24
3.7 Pressure Sensor ................................................................................................................................ 3-25
3.8 High Pressure Protection Device ....................................................................................................... 3-26
3.9 Noise Filter (NF) ................................................................................................................................. 3-27
3.10 Capacitor (CB1, CB2) ........................................................................................................................ 3-29
3.11 Reactor (DCL) .................................................................................................................................... 3-29
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