Servicing - Hitachi RAS-2-HVNP Service Manual

Utopia ivx premium / ivx standard h(v)n(p/c)(e) series
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10. Servicing

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.
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
319
SMGB0079 rev.0 - 01/2013
1 0
. S e r v i c i n g
10

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