Hitachi YUTAKI Series Service Manual

Contents
Service Manual
10
General index
SMGB0066 rev.0 - 12/2009
7.6. Troubleshooting of accessories .................................................................................................227
7.6.1. Pump kit ...............................................................................................................................................227
7.6.2. WEH - Water Electric Heater ................................................................................................................228
7.6.3. DHWT - Domestic Hot Water Tank .......................................................................................................228
8. Spare parts ..................................................................................................................................229
8.1. Spare parts of Yutaki .................................................................................................................230
8.1.1. Cycle and estructural parts ..................................................................................................................230
8.1.2. Electrical parts ......................................................................................................................................231
8.2. Spare parts of accessories ........................................................................................................233
8.2.1. WEH - Water Electric Heater ................................................................................................................233
8.2.2. DHWT - Domestic Hot Water Tank .......................................................................................................234
9. Servicing ......................................................................................................................................237
9.1. RHUE-(3~6)A(V)HN ..................................................................................................................239
9.1.1. Removing service cover .......................................................................................................................239
9.1.2. Removing air outlet grille ......................................................................................................................239
9.1.3. Removing upper cover .........................................................................................................................240
9.1.4. Removing the lower part of service panel and rear panel ....................................................................240
9.1.5. Removing Yutaki fan motor .................................................................................................................241
9.1.7. Removing the compressor ...................................................................................................................242
9.1.6. Mounting Yutaki fan motor ....................................................................................................................242
9.1.8. Removing high pressure switch ...........................................................................................................245
9.1.9. Opening electrical box (P-mounting plate) ...........................................................................................246
9.1.10. Removing the coils for the reversing and solenoid valves ...................................................................247
9.1.11. Removing electronic expansion valve coils ..........................................................................................248
9.1.12. Removing pressure switches ...............................................................................................................249
9.1.13. Removing reversing valve ....................................................................................................................250
9.1.14. Removing expansion valves ................................................................................................................250
9.1.15. Removing solenoid valve .....................................................................................................................251
9.1.16. Removing electrical components .........................................................................................................252
9.1.17. Removing inverter components ...........................................................................................................253
9.1.18. Removing the ISPM .............................................................................................................................254
9.1.19. Removing the DIP-IPM.........................................................................................................................255
9.1.20. Removingtheelectrical-noiselter ......................................................................................................256
9.1.21. Removing other electrical components ................................................................................................257

Hitachi YUTAKI Series Specifications

General

Heating Capacity	5.0 kW - 16.0 kW
Cooling Capacity	5.0 kW - 16.0 kW
Energy Efficiency Class	A+++
Refrigerant	R32
Operating Temperature Range (Cooling)	46°C
Noise Level (Indoor Unit)	45 dB
Noise Level (Outdoor Unit)	45 dB