TCGB0075 rev.0 - 11/2012
5. Acoustic characteristic curves ................................................................................... 79
5.1 Sound pressure level for outdoor unit .......................................................................................................80
5.1.1 Considerations .............................................................................................................................................. 80
5.1.2 Charts ............................................................................................................................................................ 81
6. Working range ........................................................................................................... 83
6.1 Working range ..........................................................................................................................................84
7. General dimensions .................................................................................................. 85
7.1 Name of parts ...........................................................................................................................................86
7.1.1 Outdoor unit ................................................................................................................................................... 86
7.1.2 Indoor unit ..................................................................................................................................................... 87
7.1.3 Domestic Hot Water Tank .............................................................................................................................. 88
7.2 Dimensional data ......................................................................................................................................89
7.2.1 Outdoor unit ................................................................................................................................................... 89
7.2.2 Indoor unit and domestic hot water tank (optional) ....................................................................................... 89
7.3 Service space ...........................................................................................................................................91
7.3.1 Outdoor unit ................................................................................................................................................... 91
7.3.2 Indoor unit and domestic hot water tank (optional) ....................................................................................... 92
8. Refrigerant cycle and hydraulic circuit ................................................................... 95
8.1 RAS-(4-6)H(V)RNME-AF + RWH-(4.0-6.0)FS(V)NFE combination .........................................................96
9. R e fr i g e r a n t a n d w a t e r p i p i n g .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7
9.1 Refrigerant circuit......................................................................................................................................98
9.1.1 Refrigerant piping ......................................................................................................................................... 98
9.1.2 Piping connections ........................................................................................................................................ 99
9.1.3 Refrigerant charge ....................................................................................................................................... 100
9.1.4 Precautions in the event of gas refrigerant leaks ........................................................................................ 100
9.1.5 Pump down of refrigerant ............................................................................................................................ 102
9.1.6 Refrigerant check joints ............................................................................................................................... 102
9.2 Space heating hydraulic circuit ...............................................................................................................103
9.2.1 Hydraulic circuit ........................................................................................................................................... 103
9.2.2 Water piping ................................................................................................................................................ 104
9.2.3 Water quality................................................................................................................................................ 105
9.2.4 Water ow adjustment ................................................................................................................................. 105
9.2.5 Pressure charts ........................................................................................................................................... 107
9.3 Domestic Hot Water hydraulic circuit (Optional) .....................................................................................108
9.3.1 Hydraulic circuit ........................................................................................................................................... 108
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