Hitachi RAS-4HRNME-AF - REFRIGERANT CYCLE; Refrigerant System Diagram

2. Features and benets
TCGB0075 rev.0 - 11/2012
19
2
2. F e a t u r e s a n d b e n e f i t s
Index
2.1. Main features.........................................................................................................................................20
2.2. Selection benets ..................................................................................................................................21
2.2.1. Environment-friendly system ..................................................................................................................... 21
2.2.2. Water outlet temperature up to 80 ºC ........................................................................................................ 22
2.2.3. SMART cascade cycle............................................................................................................................... 23
2.2.4. High efciency system ............................................................................................................................... 25
2.2.5. Wide capacity range .................................................................................................................................. 25
2.2.6. Nominal heating capacity stable at low outdoor ambient temperatures .................................................... 26
2.2.7. Adaptability to the customer’s/system needs ............................................................................................ 26
2.2.8. Wide range of accessories ........................................................................................................................ 26
2.2.9. Advanced technology ................................................................................................................................ 27
2.3. Installation benets................................................................................................................................37
2.3.1. Different possibles installation types ......................................................................................................... 37
2.3.2. Easy unit installation .................................................................................................................................. 38
2.3.3. Easy and exible electrical installation ...................................................................................................... 39
2.4. Start-up benets ....................................................................................................................................40
2.4.1. Start-up by pressing the Run/Stop button of LCD user’s interface ............................................................ 40
2.4.2. Floor screed drying (Circuits 1 & 2) (Optional function) ............................................................................. 40
2.4.3. Test run operation from LCD user’s interface ............................................................................................ 40
2.5. Control features .....................................................................................................................................41
2.5.1. Easy to use - New LCD user’s interface (PC-S80TE) ............................................................................... 41
2.6. Control features .....................................................................................................................................43
2.6.1. Flexible space heating conguration and control ...................................................................................... 43
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 benets ............................................................................................................................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