Hitachi RCI-1.0FSN3 Service Manual page 11

Index
10.9.6. Replacing PCB1 for Control .................................................................................................................... 370
10.9.7. Removing Electrical Box .......................................................................................................................... 372
10.9.8. Removing AS Motor ................................................................................................................................. 374
10.9.9. Removing Drain Pan ............................................................................................................................... 375
10.9.10. Removing Heat Exchanger ...................................................................................................................... 377
10.9.11. Removing Thermistors for Freeze Protection, Gas Pipe, Outlet Air and Inlet Air .................................... 380
10.9.12. Removing Fan and Fan Motor ................................................................................................................. 384
10.9.13. Removing Electronic Expansion Valve Coi .............................................................................................. 385
10.9.14. Removing Horizontal Louver ................................................................................................................... 387
10.10. RPF(I)- (1.0-2.5) .................................................................................................................................. 389
10.10.1. Removal of the air inlet grille ................................................................................................................... 389
10.10.2. Removal of the air filter ............................................................................................................................ 389
10.10.3. Removal of the air outlet grille ................................................................................................................. 390
10.10.4. Removal of the front panel ...................................................................................................................... 390
10.10.5. Removal of the fan motor ........................................................................................................................ 390
10.10.6. Removal of the printed circuit board (PCB) ............................................................................................. 391
10.10.7. Removal of the thermistors from the liquid and gas piping ...................................................................... 392
10.11. KPI....................................................................................................................................................... 393
10.11.1. System description .................................................................................................................................. 393
10.11.2. Structure and part names ........................................................................................................................ 393
10.12. DX-Interface ........................................................................................................................................ 394
10.12.1. Structure and part names ........................................................................................................................ 394
10.12.2. Removal of the electrical components ..................................................................................................... 394
11. Electrical checks of the main parts ...................................................................... 395
11.1. Thermistor ........................................................................................................................................... 396
11.2. Electronic expansion valve .................................................................................................................. 397
11.3. Automatic louver mechanism .............................................................................................................. 398
11.3.1. RCI(M) indoor units ................................................................................................................................. 398
11.3.2. RCD indoor units ..................................................................................................................................... 399
11.3.3. RPC indoor units ..................................................................................................................................... 399
12. Maintenance notes ................................................................................................. 401
12.1. Regular equipment maintenance ........................................................................................................ 402
12.1.1. Necessary tools, equipment and consumable for regular maintenance .................................................. 402
12.1.2. Indoor cleaning ........................................................................................................................................ 404
12.1.3. Cleaning of KPI units ............................................................................................................................... 413
12.1.4. Collection of refrigerant to replace the indoor unit ................................................................................... 416
XI
TCGB0077 rev.0 - 01/2013