Hitachi RAS-4-HNCE - 10 Servicing

10. Servicing
319
SMGB0079 rev.0 - 01/2013
10
Índice
10.1. Introduction..........................................................................................................................................323
10.2. Servicing for Outdoor Units RAS-(2-2.5)HVNP and RAS-3HVNC ......................................................324
10.2.1. Removing pipe cover ............................................................................................................................... 324
10.2.2. Removing front cover .............................................................................................................................. 324
10.2.3. Removing outdoor fan ............................................................................................................................. 324
10.2.4. Removing the compressor ....................................................................................................................... 325
10.2.5. Removing high pressure switch and pressure switch for control ............................................................. 327
10.2.6. Removing four-way valve coil .................................................................................................................. 328
10.2.7. Removing electronic expansion valve coil ............................................................................................... 328
10.2.8. Removing electrical components ............................................................................................................. 329
10.3. Servicing for Premium series ..............................................................................................................332
10.3.1. Outdoor unit RAS-3HVNPE ..................................................................................................................... 332
10.3.1.1. Removing service cover ........................................................................................................ 332
10.3.1.2. Remove outlet grille ............................................................................................................... 332
10.3.1.3. Removing upper cover .......................................................................................................... 333
10.3.1.4. Removing bottom service cover and rear cover .................................................................... 333
10.3.1.5. Removing outdoor fan motor ................................................................................................. 334
10.3.1.6. Removing electrical box ........................................................................................................ 335
10.3.1.7. Removing the compressor .................................................................................................... 336
10.3.1.8. Removing the High pressure switch and Pressure switch for control ................................... 339
10.3.1.9. Opening electrical box (P plate) ............................................................................................ 340
10.3.1.10. Removing Reversing valve coil ............................................................................................. 340
10.3.1.11. Removing electronic expansion valve coil ............................................................................. 341
10.3.1.12. Removing solenoid valve coil (SVC) ..................................................................................... 341
10.3.1.13. Removing reversing valve ..................................................................................................... 342
10.3.1.14. Removing Electronic expansion Valve and Solenoid Valve ................................................... 343
10.3.1.15. Removing electrical components .......................................................................................... 343
10.3.1.16. Removing other electrical components ................................................................................. 345
10.3.2. Outdoor units RAS-(4-6)H(V)NPE ........................................................................................................... 346
10.3.2.1. Removing service cover ........................................................................................................ 346
10.3.2.2. Removing air outlet grille ....................................................................................................... 346
10.3.2.3. Removing upper cover .......................................................................................................... 347
10.3.2.4. Removing the bottom service cover and rear cover .............................................................. 347
10.3.2.5. Removing outdoor fan motor ................................................................................................. 348
10.3.2.6. Removing electrical box ........................................................................................................ 349
1 0 . S e r v i c i n g