Hitachi 7E300020, Technical Catalogue, Page: 6 / 158

TCGB0075 rev.0 - 11/2012
2.6.2 Flexible Domestic Hot Water (DHW) control ................................................................................................. 47
2.6.3 Swimming pool combination control ............................................................................................................. 49
2.6.4 Flexible water pumps control ......................................................................................................................... 49
2.6.5 Other optional functions ................................................................................................................................ 49
2.7 Maintenance benefits ................................................................................................................................51
2.7.1 Complete operation display by LCD user’s interface .................................................................................... 51
2.7.2 Front access to the electrical box .................................................................................................................. 51
2.7.3 Easy servicing ............................................................................................................................................... 52
2.7.4 High accessibility to the water pressure ports ............................................................................................... 52
2.7.5 Alarm hystorical data ..................................................................................................................................... 53
3
.
General data ...............................................................................................................55
3.1 YUTAKI S80 system .................................................................................................................................56
3.2 Outdoor unit ..............................................................................................................................................57
3.2.1 RAS-(4-6)HVRNME-AF ................................................................................................................................. 57
3.2.2 RAS-(4-6)HRNME-AF ................................................................................................................................... 58
3.3 Indoor unit .................................................................................................................................................59
3.3.1 RWH-(4.0-6.0)FSVNFE ................................................................................................................................. 59
3.3.2 RWH-(4.0-6.0)FSNFE ................................................................................................................................... 60
3.4 Domestic Hot Water Tank .........................................................................................................................61
3.5 Component data .......................................................................................................................................62
3.5.1 Outdoor unit ................................................................................................................................................... 62
3.5.2 Indoor unit ..................................................................................................................................................... 64
3.6 Electrical data ...........................................................................................................................................65
3.6.1 Considerations .............................................................................................................................................. 65
3.6.2 Outdoor unit ................................................................................................................................................... 65
3.6.3 Indoor unit ..................................................................................................................................................... 65
3.6.4 Domestic Hot Water Tank -
Electrical heater ....................................................................................66
4
.
Capacity and selection data .....................................................................................67
4.1 System selection procedure .....................................................................................................................68
4.1.1 Selection parameters .................................................................................................................................... 68
4.1.2 Selection procedure ...................................................................................................................................... 68
4.2 Maximum heating capacity tables .............................................................................................................76
4.3 Correction factors .....................................................................................................................................77
4.3.1 Defrost correction factor ............................................................................................................................... 77
4.3.2 Piping length correction factor ....................................................................................................................... 77