Hitachi RAS-(4-12)HNP(1)(E) - Servicing

10 Servicing
349
SMGB0087 rev.0 - 12/2013
10
Index
10.1. Safety Introduction ..............................................................................................................................353
10.2. RAS-(2-2.5)HVNP1 and RAS-3HVNC1 ..............................................................................................354
10.2.1. Removing pipe cover ............................................................................................................................... 354
10.2.2. Removing front cover .............................................................................................................................. 354
10.2.3. Removing outdoor fan ............................................................................................................................. 354
10.2.4. Removing the compressor ....................................................................................................................... 355
10.2.5. Removing high pressure switch and pressure switch for control ............................................................. 357
10.2.6. Removing four-way valve coil .................................................................................................................. 357
10.2.7. Removing electronic expansion valve coil ............................................................................................... 358
10.2.8. Removing electrical components ............................................................................................................. 359
10.3. RAS-3HVNP1E ...................................................................................................................................361
10.3.1. Removing service cover .......................................................................................................................... 361
10.3.2. Remove outlet grille ................................................................................................................................. 361
10.3.3. Removing upper cover ............................................................................................................................ 362
10.3.4. Removing bottom service cover and rear cover ...................................................................................... 362
10.3.5. Removing outdoor fan motor ................................................................................................................... 363
10.3.6. Removing electrical box .......................................................................................................................... 364
10.3.7. Removing the compressor ....................................................................................................................... 365
10.3.8. Removing the High pressure switch and Pressure switch for control ...................................................... 367
10.3.9. Opening electrical box (P plate) .............................................................................................................. 368
10.3.10. Removing Reversing valve coil ............................................................................................................... 368
10.3.11. Removing electronic expansion valve coil ............................................................................................... 368
10.3.12. Removing solenoid valve coil (SVC) ....................................................................................................... 369
10.3.13. Removing reversing valve ....................................................................................................................... 369
10.3.14. Removing Electronic expansion Valve and Solenoid Valve ..................................................................... 370
10.3.15. Removing electrical components ............................................................................................................. 370
10.3.16. Removing other electrical components ................................................................................................... 371
10.4. RAS-(4-6)H(V)NP1E ...........................................................................................................................372
10.4.1. Removing service cover .......................................................................................................................... 372
10.4.2. Removing air outlet grille ......................................................................................................................... 372
10.4.3. Removing upper cover ............................................................................................................................ 373
10.4.4. Removing the bottom service cover and rear cover ................................................................................ 373
10.4.5. Removing outdoor fan motor ................................................................................................................... 374
10.4.6. Removing electrical box .......................................................................................................................... 375
10.4.7. Removing the compressor ....................................................................................................................... 376
1 0 . S er v i ci n g