Hitachi UTOPIA R32 Series Installation And Operation Manual page 9

11. Refrigerant pump down
11.1 General considerations ....................................................................................48
11.2 RAS-(2-3)HVRC3 refrigerant pump down example .........................................48
12. H-LINK II system
12.1 General considerations ....................................................................................50
12.2 System installation DSW Setting ......................................................................51
13. Test run from outdoor unit side
13.1 RAS-(2-3)HVRC3 test run procedure ...............................................................54
13.2 Test run check list ............................................................................................56
14. Troubleshooting
14.1 On-screen display during abnormal operation ...............................................58
14.2 Main Alarm Codes ...........................................................................................59
15. Maintenance ...........................................................................................................64
15.1 General considerations ....................................................................................65
15.2 General maintenance work .............................................................................65
16. Optional parts for RAS-(2-3)HVRC3 series
16.1 Assigned models and quantity ........................................................................68
16.2 Air flow guide ...................................................................................................68
16.2.1 AG-264 .................................................................................................68
16.3 Wind guard ......................................................................................................70
16.3.1 WSP-SP10A ..........................................................................................70
16.4 Snow protection hood .....................................................................................71
16.4.1 Air discharge hood ...............................................................................71
16.4.2 Rear suction hood ...............................................................................72
16.4.3 Left suction hood .................................................................................73
16.4.4 Assembly of snow protection hood ....................................................74
PMEN0654 rev.0 - 12/2023
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