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Hitachi YUTAKI S Series Technical Catalogue
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Hitachi YUTAKI S Series Technical Catalogue

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YUTAKI R32 SERIES
Technical Catalogue
Split system - Outdoor unit
RAS-(2-3)WHVRP
Split system - Indoor unit
YUTAKI S
RWM-(2.0-3.0)NRE(-W)
YUTAKI S COMBI
RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W)
Monobloc system
YUTAKI M
RASM-(2-3)VRE

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  • Page 1 YUTAKI R32 SERIES Technical Catalogue Split system - Outdoor unit RAS-(2-3)WHVRP Split system - Indoor unit YUTAKI S RWM-(2.0-3.0)NRE(-W) YUTAKI S COMBI RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W) Monobloc system YUTAKI M RASM-(2-3)VRE...
  • Page 3 Contents C o n t e n t s General information General data Capacity and selection data Acoustic characteristic curves Working range General dimensions Refrigerant cycle and hydraulic circuit Refrigerant and water piping Electrical and control settings Optional functions TCGB0123 rev.2 - 10/2019...

  • Page 5: Table Of Contents

    General Index General Index General information ....................1 General information ..........................2 1.1.1 General notes ..............................2 1.1.2 Introduction ..............................2 1.1.2.1 Overview of YUTAKI R32 system....................... 2 1.1.2.2 Summary of operations ........................3 Applied symbols ............................5 Product guide ............................6 1.3.1 ...
  • Page 6 General Index 2.4.3 Split system - Indoor unit ..........................40 2.4.3.1 YUTAKI S ............................40 2.4.3.2 YUTAKI S COMBI ..........................41 2.4.4 Monobloc system - YUTAKI M........................44 2.4.5  Domestic Hot Water Tank ..........................45 Component data ............................ 46 2.5.1 Split system - Outdoor unit ..........................46 2.5.2 Split system - Indoor unit ..........................
  • Page 7 General Index 5.3.1 Hydraulic data ............................... 75 5.3.2 Pump performance curves ..........................76 General dimensions ....................79 Name of parts and Dimensional data ....................80 6.1.1 Split system - Outdoor unit ..........................80 6.1.2 Split system - Indoor unit ..........................81 6.1.2.1 YUTAKI S ............................
  • Page 8 General Index System wiring diagram ........................110 Electrical connection ..........................111 9.3.1 Wiring size ..............................111 9.3.2  Minimum requirements of the protection devices ..................112 Transmission wiring ..........................113 9.4.1 YUTAKI units ..............................113 9.5  Optional indoor unit wiring (accessories) .................... 114 9.6  Setting of DIP switches and RSW switches ..................117 9.6.1 Outdoor unit RAS-(2/2.5/3)WHVRP and RASM-(2-3)VRE ................117 9.6.1.1  Location of DIP switches and rotary switches .................117 9.6.1.2 ...

  • Page 9: General Information

    1 General information G e n e r a l i n f o r m a t i o n Index General information ..........................2 1.1.1 General notes ..............................2 1.1.2 Introduction ..............................2 1.1.2.1 Overview of YUTAKI R32 system....................... 2 1.1.2.2 Summary of operations ........................

  • Page 10: General Information

    As a result, some of the images or data used to illustrate this document may not refer to specific models. No claims will  be accepted based on the data, illustrations and descriptions included in this manual. No type of modification must be made to the equipment without prior, written authorization from the manufacturer. N O T E This air conditioner has been designed for standard air conditioning for human beings. For use in other applications, please contact your HITACHI dealer or service contractor. 1.1.2 Introduction HITACHI proudly announces the newest R32 range of air-to-water heat pumps in its award-winning YUTAKI range. YUTAKI units produce heating and domestic hot water like any oil or gas boiler, but transforming renewable energy from  the outside air into heat. Air to water heat pumps extract the free energy present in the air, which is enough to heat a  home up to a comfortable temperature, even on the coldest winter day. Every kW of electricity used to power the heat ...

  • Page 11: Summary Of Operations

    1 General information General information YUTAKI S COMBI The indoor unit of YUTAKI S COMBI is conceived as a floor standing unit. It is prepared for heating operation as well as  for domestic hot water production. For this purpose, it has a built-in domestic hot water tank available in two sizes (200 or  260 L). In line with YUTAKI S units, it meets the needs of installations with low capacity requirements. Furthermore, special YUTAKI S COMBI models have been designed with a specific solar tank for the use of solar panels.    Also, new models for the UK market that meet the UK requirements referred in the UK Building Regulations.  Monobloc system - YUTAKI M YUTAKI M is a monobloc air to water heat pump system composed by only an special outdoor unit, which carries out the  function of an air-to-water heat pump. This results in an excellent solution when installation space available is limited. YUTAKI M is designed to be installed outdoors, in any kind of dwelling (house, apartment, villa,…), whether in a new  construction or in an existing building. Installation work is greatly simplified thanks to the lack of refrigerant piping  connections. 1.1.2.2 Summary of operations Space heating YUTAKI units are factory-supplied ready for space heating operation. Different heating installation configurations can be  selected, providing a comfortable atmosphere all year long, even in the coldest climates: Mono-valent system • The air to water heat pump is sized to provide 100% of the heating requirements on the coldest day the year. • Mono-energy system This is the most popular configuration. The air to water heat pump is sized to provide 80% of the heating ...
  • Page 12 1 General information General information Domestic hot water production For YUTAKI S, the HITACHI accessory “DHWT-(200/260)S-3.0H2E” can be used for the production of DHW. In case of YUTAKI S COMBI, the domestic hot water tank is built in the indoor unit.  YUTAKI M models also give the option of domestic hot water production, allowing the user to benefit from the heat  pump’s high efficiency and achieve domestic hot water. This is made possible by a domestic hot water tank. The  HITACHI accessory “DHWT-(200/260)S-3.0H2E” can be used for the production of DHW. An electric heater is incorporated inside both remote and integrated tanks in order to allow an immediate heating of the  domestic hot water in accordance with the user’s needs. Space cooling YUTAKI units can also be operated in cooling operation. The dedicated “Cooling kit” accessory has been designed for  this purpose. Combining the heating only models with these cooling kits, the reversible models become available. In this  case, combination with fan-coils, refreshing floor or both (2nd temperature area) can be applied. Combination with solar panels YUTAKI system can be combined with solar panel. The solar combination enables to heat up the DHW by means of the  sun. The solar combination is designed to transfer the heat from the solar panels (sun radiation) to the heat exchanger of  DHW tank. In case of YUTAKI S COMBI, a specific model with integrated tank for solar combination has been designed, as  explained before. Swimming pool water heating operation For summer session period, YUTAKI system can be used to heat up the water temperature of swimming pools up to a  value between 24 and 33ºC. TCGB0123 rev.2 - 10/2019...

  • Page 13: Applied Symbols

    1 General information Applied symbols 1.2 Applied symbols During normal air conditioning system design work or unit installation, greater attention must be paid in certain situations  requiring particular care in order to avoid damage to the unit, the installation or the building or property. Situations that pose a risk to the safety of those in the surrounding area or to the unit itself are clearly indicated in this  manual. A series of special symbols are used to clearly identify these situations. Pay close attention to these symbols and to the messages following them, as your safety and that of others depends on it. D A N G E R • The text following this symbol contains information and instructions relating directly to your safety. • Not taking these instructions into account could lead to serious, very serious or even fatal injuries to you and others. In the texts following the danger symbol you can also find information on safety procedures during unit installation.

  • Page 14: Product Guide

    1 General information Product guide 1.3 Product guide 1.3.1 Classification of the units 1.3.1.1 Split system - Outdoor unit Unit type: Outdoor unit (Split air system) Position-separating hyphen (fixed) Compressor power (HP): 2, 2.5, 3 For water combination Heat pump V: Single phase unit (1~ 230V 50Hz) R: R32 refrigerant Premium series 1.3.1.2 Split system - Indoor unit  YUTAKI S Unit type: YUTAKI S (Split system - Single water module (Indoor unit) - Medium/Low temperature) Position-separating hyphen (fixed) Compressor power of the combined outdoor unit (HP): 2.0, 2.5, 3.0 N: R410A refrigerant R: R32 refrigerant Made in Europe...

  • Page 15: Monobloc System

    1 General information Product guide 1.3.1.3 Monobloc system  YUTAKI M Unit type: YUTAKI M (Monobloc system - Single water module (Outdoor unit) - Low/Medium temperature) Position-separating hyphen (fixed) Compressor power (HP): 2.0, 3.0 V: Single phase unit (1~ 230V 50Hz) R32 refrigerant Made in Europe RASM 1.3.2 Product guide 1.3.2.1 Split system - Outdoor unit 1~ 230V 50Hz Unit Code 60289149 RAS-2WHVRP 60289150 RAS-2.5WHVRP 60289151 RAS-3WHVRP 1.3.2.2 Split system - Indoor unit ...
  • Page 16 1 General information Product guide  YUTAKI S COMBI N O T E Icons between brackets mean possible extra operations to the factory-supplied operations. For cooling operation, refer to the Cooling kit accessory for YUTAKI S COMBI units. Standard model ( ) ( ) ( ) 1~ 230V 50Hz Unit...

  • Page 17: Monobloc System

    1 General information Product guide Model for UK market ( ) ( ) 1~ 230V 50Hz Unit Code RWD-2.0NRWE-200S-K 7E483242 RWD-2.5NRWE-200S-K 7E483243 RWD-3.0NRWE-200S-K 7E483244 RWD-2.0NRWE-260S-K 7E483251 RWD-2.5NRWE-260S-K 7E483252 RWD-3.0NRWE-260S-K 7E483253 1.3.2.3 Monobloc system  YUTAKI M ) ( ) ( ) ( ) ( ) 1~ 230V 50Hz Unit Code...

  • Page 18: Accessory Code List

    1 General information Product guide 1.3.3 Accessory code list Model Ref. For all series For YUTAKI S units For YUTAKI S COMBI units For YUTAKI M units  Cooling kit accessories Accessory Ref. Name Code Figure Cooling operation kit for YUTAKI S ATW-CKS-01 7E549927 (For 2.0~3.0HP) Cooling operation kit for YUTAKI S COMBI ATW-CKSC-01 7E549930 (For 2.0~6.0HP) Cooling operation kit for YUTAKI M  ATW-CKM-01 7E549931 (For 2 ~ 6HP)  Control accessories Accessory Ref.
  • Page 19 1 General information Product guide Accessory Ref. Name Code Figure ATW-MBS-02 MODBUS gateway for YUTAKI units 7E549924 ATW-KNX-02 KNX interface for YUTAKI units 7E549925 ATW-TAG-02 Home automation gateway for YUTAKI units 70549926 Auxiliary output signal box ATW-AOS-02 7E549935 (Relay board for additional output signals) ATW-YMM-01 Remote control box for YUTAKI M 7E549936 AHP-SMB-01 SmartBox (Hi-Box) 70549919 ATW-FCP-01 Unit controller cover 7E549938 TCGB0123 rev.2 - 10/2019...
  • Page 20 1 General information Product guide  Temperature sensor accessories Accessory Ref. Name Code Figure ATW-2OS-02 2nd. outdoor temperature sensor 9E500017 ATW-ITS-01 Indoor wired room temperature sensor 7E549932 ATW-WTS-02Y Universal water temperature sensor 9E500004  Water circuit accessories Accessory Ref. Name Code Figure 2nd zone mixing kit...
  • Page 21 1 General information Product guide Accessory Ref. Name Code Figure WEH-6E Water electric heater 90500002 ATW-DPOV-01 Differential pressure overflow valve 7E549916 TCGB0123 rev.2 - 10/2019...

  • Page 23: General Data

    2 General data G e n e r a l d a t a Index Capacity tables ............................17 2.1.1 Nominal capacity-performance tables ......................17 2.1.1.1 Considerations ..........................17 2.1.1.2 Capacity-performance data ......................17 ERP performance data .......................... 20 2.2.1 General considerations ..........................20 2.2.2 General ERP data for space heaters ......................
  • Page 24 2 General data 2.6.1 Considerations .............................. 54 2.6.2 Split system - Outdoor unit ..........................54 2.6.3 Split system - Indoor unit ..........................54 2.6.3.1 YUTAKI S ............................54 2.6.3.2 YUTAKI S COMBI ..........................55 2.6.4 Monobloc system - YUTAKI M........................55 TCGB0123 rev.2 - 10/2019...

  • Page 25: Capacity Tables

    2 General data Capacity tables 2.1 Capacity tables 2.1.1 Nominal capacity-performance tables 2.1.1.1 Considerations • The heating capacity tables show the capacity and performance data in integrated values (with defrost correction factor included). • The nominal heating and cooling capacities are based on the EN 14511 standard: Piping length: 7.5 meters; Piping lift: 0 meters.
  • Page 26 2 General data Capacity tables  YUTAKI S COMBI 2.0 HP 2.5 HP 3.0 HP Outdoor unit model RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP RWD-2.0NRW(S) RWD-2.5NRW(S) RWD-3.0NRW(S) Indoor unit model E-(200/260)S(-K)(-W) E-(200/260)S(-K)(-W) E-(200/260)S(-K)(-W) WIT / WOT Unit Heating operation (DB/WB) 1.85 / 4.30 / 6.50 1.85 / 6.00 / 8.60 2.1 / 8.00 / 11.0 (Min./Nom./Max.)
  • Page 27 2 General data Capacity tables  YUTAKI M 2.0 HP 3.0 HP Outdoor unit model RASM-2VRE RASM-3VRE WIT / WOT Unit Heating operation (DB/WB) CAP (Nom./Max.) 1.85 / 4.30 / 6.50 2.1 / 8.00 / 11.0 30 / 35 ºC COP (Nom.) 5.25 4.60...

  • Page 28: Erp Performance Data

    2 General data ERP performance data 2.2 ERP performance data 2.2.1 General considerations • This appliance must be installed, maintained and dismantled by professionals. Do not pour contained refrigerant into the atmosphere since this refrigerant fluid is a fluorinated greenhouse gas regulated under European Regulation (EU) Nº 517/2014. • Data with the mark (*) in General ERP data corresponds to the “Energy efficiency contribution (η )” due to the use of temperature control.
  • Page 29 2 General data ERP performance data  WARMER climate RAS-(2-3)WHVRP + RWM-(2.0-3.0)NRE(-W) 2.0 HP 2.5 HP 3.0 HP Model Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Indoor unit RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W) Design capacity (P DESIGN Nominal energy efficiency (η 185 (194) 182 (189) 170 (175) Data for Packaged Fiche: Energy efficiency with OTC control (η...

  • Page 30: Erp Data - Yutaki S Combi

    2 General data ERP performance data 2.2.2.2 ERP data - YUTAKI S COMBI  AVERAGE climate RAS-(2-3)WHVRP + RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W) 2.0 HP 2.5 HP 3.0 HP Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRW(S)E- RWD-2.5NRW(S)E- RWD-3.0NRW(S)E- Indoor unit (200/260)S (200/260)S (200/260)S (-K)(-W) (-K)(-W) (-K)(-W) Water outlet temperature...
  • Page 31 2 General data ERP performance data  WARMER climate RAS-(2-3)WHVRP + RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W) 2.0 HP 2.5 HP 3.0 HP Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRW(S)E- RWD-2.5NRW(S)E- RWD-3.0NRW(S)E- Indoor unit (200/260)S (200/260)S (200/260)S (-K)(-W) (-K)(-W) (-K)(-W) Design capacity (P DESIGN Nominal energy efficiency (η 185 (194) 182 (189) 170 (175)

  • Page 32: Erp Data - Yutaki M

    2 General data ERP performance data 2.2.2.3 ERP data - YUTAKI M  AVERAGE climate RASM-(2-3)VRE 2.0 HP 3.0 HP Model RASM-2VRE RASM-3VRE Water outlet temperature 35ºC 55ºC 35ºC 55ºC Air to water heat pump Heat pump combination heater Product description Low temperature heat pump Complementary heater...
  • Page 33 2 General data ERP performance data  WARMER climate RASM-(2-3)VRE 2.0 HP 3.0 HP Model Outdoor unit RASM-2VRE RASM-3VRE Design capacity (P DESIGN Nominal energy efficiency (η 185 (194) 170 (175) Data for Packaged Fiche: Energy efficiency with OTC control (η ) (*) 187 (196) 172 (177) Energy efficiency with thermostats (η ) (*) 189 (198) 174 (177)

  • Page 34: Erp Additional Data - Yutaki S

    2 General data ERP performance data 2.2.2.4 ERP additional data - YUTAKI S RAS-(2-3)WHVRP + RWM-(2.0-3.0)NRE(-W) 2.0 HP 2.5 HP 3.0 HP Model Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Indoor unit RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W) Electrical power input in stand-by mode (Psb) 11.9 11.9 11.9...

  • Page 35: General Erp Data For Combi Heaters

    2 General data ERP performance data 2.2.3 General ERP data for combi heaters 2.2.3.1 YUTAKI S COMBI RAS-(2-3)WH(V)NP + RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W) 2.0 HP 2.5 HP 3.0 HP Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP RWD- Model RWD-2.0 RWD-2.5 RWD-2.5 RWD-3.0 RWD-3.0 2.0NRW(S) NRWE- NRWE- NRW(S)E- NRWE-...

  • Page 36: Cooling Mode Application (En 14825) (Models With Cooling Kit Accessory)

    2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3 Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3.1 Cooling data (EN 14825) - YUTAKI S Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model Indoor unit RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W)

  • Page 37: Cooling Data (En 14825) - Yutaki S Combi

    2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3.2 Cooling data (EN 14825) - YUTAKI S COMBI Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Indoor unit 200S(-W) 200S(-W) 200S(-W) Water outlet temperature 7ºC 18ºC 7ºC 18ºC...
  • Page 38 2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Indoor unit 260S(-W) 260S(-W) 260S(-W) Water outlet temperature 7ºC 18ºC 7ºC 18ºC 7ºC 18ºC Outdoor side heat exchanger of Air to Water Air to Water Air to Water...
  • Page 39 2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRWSE- RWD-2.5NRWSE- RWD-3.0NRWSE- Indoor unit 260S(-W) 260S(-W) 260S(-W) Water outlet temperature 7ºC 18ºC 7ºC 18ºC 7ºC 18ºC Outdoor side heat exchanger Air to Water Air to Water Air to Water...
  • Page 40 2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model Indoor unit RWD-2.0NRWE-200S-K RWD-2.5NRWE-200S-K RWD-3.0NRWE-200S-K Water outlet temperature 7ºC 18ºC 7ºC 18ºC 7ºC 18ºC Outdoor side heat exchanger Air to Water Air to Water Air to Water of chiller...
  • Page 41 2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model Indoor unit RWD-2.0NRWE-260S-K RWD-2.5NRWE-260S-K RWD-3.0NRWE-260S-K Water outlet temperature 7ºC 18ºC 7ºC 18ºC 7ºC 18ºC Outdoor side heat exchanger Air to Water Air to Water Air to Water of chiller...

  • Page 42: Cooling Data (En 14825) - Yutaki M

    2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3.3 Cooling data (EN 14825) - YUTAKI M Model Outdoor unit RASM-2VRE RASM-3VNRE Water outlet temperature 7ºC 18ºC 7ºC 18ºC Outdoor side heat exchanger of chiller Air to Water Air to Water Indoor side heat exchanger chiller Water...

  • Page 43: Additional Cooling Data (En 14825) - Yutaki S

    2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3.4 Additional Cooling data (EN 14825) - YUTAKI S Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model Indoor unit RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W) Electrical power input in stand-by mode 11.9 11.9 11.9 cooling mode (Psb)
  • Page 44 2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) Outdoor unit RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Model RWD-2.0NRWSE- RWD-2.5NRWSE- RWD-3.0NRWSE- Indoor unit 260S(-W) 260S(-W) 260S(-W) Electrical power input in stand-by mode cooling 11.9 11.9 11.9 mode (Psb) Electrical power input in thermostat-OFF cooling mode (Pto) Electrical power input in OFF mode (Poff) 11.9...

  • Page 45: Additional Cooling Data (En 14825) - Yutaki M

    2 General data Cooling mode application (EN 14825) (Models with cooling kit accessory) 2.3.6 Additional Cooling data (EN 14825) - YUTAKI M Model Outdoor unit RASM-2RE RASM-3NRE Electrical power input in stand-by mode cooling mode (Psb) 11.9 11.9 Electrical power input in thermostat-OFF cooling mode (Pto) Electrical power input in OFF mode (Poff) 11.9 11.9...

  • Page 46: General Specifications

    2 General data General specifications 2.4 General specifications 2.4.1 Considerations • The sound data is based on the following conditions: Outdoor ambient temperature (DB/WB): 7/6ºC. Water inlet/outlet temperature: 47/55ºC (mark: *1); 30/35ºC (mark: *2). Distance of the unit from the measuring point: At 1 meter from the unit’s front surface; 1,5 meter from floor level. The sound pressure level is measured in an anechoic chamber, so reflected sound should be taken into consideration when installing the unit. The sound power level is measured in a reverberant room, in accordance with the standard EN12102.

  • Page 47: Split System - Outdoor Unit

    2 General data General specifications 2.4.2 Split system - Outdoor unit Model RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Power supply 1~ 230V 50Hz Noise level (sound pressure) dB(A) 46 (*) 47 (*) 54 (*) (*1) Noise level dB(A) (sound power) (*2) Air flow /min 42.1 42.1 49.7 Cabinet colour...

  • Page 48: Split System - Indoor Unit

    2 General data General specifications 2.4.3 Split system - Indoor unit 2.4.3.1 YUTAKI S Model RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W) Power supply 1~ 230V 50Hz Noise level (sound power) dB(A) Nominal water WIT: 30 ºC / WOT: 35 ºC 0.77 1.03 1.29 flow ΔT: 5 ºC Material Precoated galvanised steel...

  • Page 49: Yutaki S Combi

    2 General data General specifications 2.4.3.2 YUTAKI S COMBI  Standard model RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Model (200/260)S(-W) (200/260)S(-W) (200/260)S(-W) Power supply 1~ 230V 50Hz Noise level (sound power) dB(A) Nominal water WIT: 30 ºC / WOT: 35 ºC 0.77 1.03 1.29 flow ΔT: 5 ºC Material...
  • Page 50 2 General data General specifications  Model for solar combination RWD-2.0NRWSE- RWD-2.5NRWSE- RWD-3.0NRWSE- Model 260S(-W) 260S(-W) 260S(-W) Power supply 1~ 230V 50Hz Noise level (sound power) dB(A) Nominal water WIT: 30 ºC / WOT: 35 ºC 0.77 1.03 1.29 flow ΔT: 5 ºC Material Precoated galvanised steel Cabinet...
  • Page 51 2 General data General specifications  Model for UK market RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Model (200/260)S-K (200/260)S-K (200/260)S-K Power supply 1~ 230V 50Hz Noise level (sound power) dB(A) Nominal water WIT: 30 ºC / WOT: 35 ºC 0.77 1.03 1.29 flow ΔT: 5 ºC Material Precoated galvanised steel Cabinet...

  • Page 52: Monobloc System - Yutaki M

    2 General data General specifications 2.4.4 Monobloc system - YUTAKI M Model RASM-2VRE RASM-3VRE Power supply 1~ 230V 50Hz Noise level (sound pressure) dB(A) 46 (*) 54 (*) (*1) dB(A) Noise level (sound power) (*2) dB(A) Air flow /min 42.1 49.7 Nominal water WIT: 30 ºC / WOT: 35 ºC 0.77 1.29...

  • Page 53: Domestic Hot Water Tank

    2 General data General specifications 2.4.5 Domestic Hot Water Tank Model DHWT-200S-3.0H2E DHWT-300S-3.0H2E Color White Casing Material Polypropylene jacked Height 1300 1880 Packing Width Depth Dimensions Height 1270 1750 Unit Width Depth Unit Weight Packed unit 63.5 Material Packing Carton Weight 10.5 Water volume Material...

  • Page 54: Component Data

    2 General data Component data 2.5 Component data 2.5.1 Split system - Outdoor unit MODEL RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP Type Multi-pass cross-finned tube Pipe material Copper Outer diameter Rows Number of tubes in the heat exchanger Air heat exchanger Fin material Aluminium Fin pitch 1.45 Maximum operating pressure 4.15...

  • Page 55: Split System - Indoor Unit

    2 General data Component data 2.5.2 Split system - Indoor unit 2.5.2.1 YUTAKI S Model RWM-2.0NRE(-W) RWM-2.5NRE(-W) RWM-3.0NRE(-W) Type Brazed plate Material Stainless steel Transfer fluids R32 - H Quantity Internal refrigerant volume 0.54 0.73 0.81 Internal water volume 0.57 0.76 0.84 Insulation material NBR + PVC...

  • Page 56: Yutaki S Combi

    2 General data Component data 2.5.2.2 YUTAKI S COMBI  Standard model and UK market model RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Model (200/260)S(-K)(-W) (200/260)S(-K)(-W) (200/260)S(-K)(-W) Casing material Stainless steel RWD-NRWE-200S(-K): 200 L Nominal water volume RWD-NRWE-260S(-K): 260 L RWD-NRWE-200S(-K): 190L Net water volume RWD-NRWE-260S(-K): 250L Material DUPLEX or AISI 444...
  • Page 57 2 General data Component data RWD-2.0NRWE- RWD-2.5NRWE- RWD-3.0NRWE- Model (200/260)S(-K)(-W) (200/260)S(-K)(-W) (200/260)S(-K)(-W) Material Steel (with stainless/galvanized steel connections) Internal water volume Working pressure Pre-loading pressure (Air side) Type Isolated water strainer (Filter ball) Material Brass Piping connection (in.) 1”, DN25 Mesh (hole size) Self-cleaning (with back flush) filter DHWT Pressure and temperature...
  • Page 58 2 General data Component data  Model for solar combination RWD-2.0NRW(S)E- RWD-2.5NRW(S)E- RWD-3.0NRW(S)E- Model 260S(-W) 260S(-W) 260S(-W) Casing material Stainless steel RWD-NRWE-200S: 200 L Nominal water volume RWD-NRWE-260S: 260 L RWD-NRWE-200S: 182L Net water volume RWD-NRWE-260S: 242L Material AISI 444 Tank Max.
  • Page 59 2 General data Component data RWD-2.0NRW(S)E- RWD-2.5NRW(S)E- RWD-3.0NRW(S)E- Model 260S(-W) 260S(-W) 260S(-W) Material Steel (with stainless/galvanized steel connections) Internal water volume Working pressure Pre-loading pressure (Air side) Type Isolated water strainer (Filter ball) Material Brass Piping connection (in.) 1”, DN25 Mesh (hole size) Self-cleaning (with back flush) filter Safety valve...

  • Page 60: Monobloc System - Yutaki M

    2 General data Component data 2.5.3 Monobloc system - YUTAKI M Model RASM-2VRE RASM-3VRE Model 1~ 230V 50Hz EX118HF1 GTD163UKQA Type Scroll DC Inverter driven Rotary DC Inverter driven Discharge 4.15 Pressure resistance Suction 2.21 Starting method Direct current control Motor type Poles Insulation class...
  • Page 61 2 General data Component data Model RASM-2VRE RASM-3VRE Material Stainless steel (Immersion heating element) Internal water volume Working pressure Pre-loading pressure (Air side) Type Isolated water strainer (Filter ball) Material Brass Piping connection (in.) 1”, DN25 Mesh (hole size) Self-cleaning (with back flush) filter Safety valve Yes (3 bar) Shut-off valve...

  • Page 62: Electrical Data

    • The power supply cables must be sized to cover this maximum current value. • Specifications in these tables are subject to change without notice in order that HITACHI may bring the latest innovations to their customers. • Please refer to the general information, cautions and notes regarding protective devices (CB, ELB) throughout the “9.3 Electrical connection”...

  • Page 63: Yutaki S Combi

    2 General data Electrical data 2.6.3.2 YUTAKI S COMBI RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)(-W) Applicable voltage Max. Power Model Operation mode U max. U min. supply (kW) (kW) Without electric heater 0.05 0.05 With electric heater 13.3 3.05 14.6 3.05 RWD-(2.0-3.0NRW(S)E- 1~ 230V (200/260)S(-K)(-W) 50Hz With DHW tank heater 12.2...

  • Page 65: Capacity And Selection Data

    3 Capacity and selection data C a p a c i t y a n d s e l e c t i o n d a t a Index YUTAKI S .............................. 58 3.1.1 Maximum heating capacity table (kW) (Integrated) ..................58 3.1.2 Maximum cooling capacity table (kW) ......................

  • Page 66: Yutaki S

    3 Capacity and selection data YUTAKI S 3.1 YUTAKI S 3.1.1 Maximum heating capacity table (kW) (Integrated) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 67: Maximum Cooling Capacity Table (Kw)

    3 Capacity and selection data YUTAKI S 3.1.2 Maximum cooling capacity table (kW) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 68: Yutaki S Combi

    3 Capacity and selection data YUTAKI S COMBI 3.2 YUTAKI S COMBI 3.2.1 Maximum heating capacity table (kW) (Integrated) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 69: Maximum Cooling Capacity Table (Kw)

    3 Capacity and selection data YUTAKI S COMBI 3.2.2 Maximum cooling capacity table (kW) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 70: Yutaki M

    3 Capacity and selection data YUTAKI M 3.3 YUTAKI M 3.3.1 Maximum heating capacity table (kW) (Integrated) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 71: Maximum Cooling Capacity Table (Kw)

    3 Capacity and selection data YUTAKI M 3.3.2 Maximum cooling capacity table (kW) Ambient temperature (ºC WB) Water outlet temp (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW)

  • Page 72: Correction Factors

    3 Capacity and selection data Correction factors 3.4 Correction factors 3.4.1 Piping length correction factor The correction factor is based on the equivalent piping length in metres (EL) and the height difference between outdoor unit and indoor unit in metres (H). H: Height difference between indoor unit and outdoor unit (m).
  • Page 73 3 Capacity and selection data Correction factors  Heating piping length correction factor Heating RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP  Cooling piping length correction factor Cooling RAS-2WHVRP RAS-2.5WHVRP RAS-3WHVRP TCGB0123 rev.2 - 10/2019...

  • Page 74: Correction Factor Owing To Use Of Glycol (Only For Yutaki M)

    3 Capacity and selection data Correction factors 3.4.2 Correction factor owing to use of glycol (only for YUTAKI M)  Application at low ambient temperature When the ambient temperature is low in winter, the water in the pipes and circulating pump may freeze and damage the pipes and water pumps during shutdown periods.

  • Page 75: Acoustic Characteristic Curves

    4 Acoustic characteristic curves A c o u s t i c c h a r a c t e r i s t i c c u r v e s Index Considerations ............................68 Sound pressure level for Outdoor unit and YUTAKI M ................69 TCGB0123 rev.2 - 10/2019...

  • Page 76: Considerations

    4 Acoustic characteristic curves Considerations 4.1 Considerations 1 Distance of the unit from the measuring point: At 1 meter from the unit’s front surface; 1,5 meter from floor level. Outdoor unit 2 The data is measured in an anechoic chamber, so reflected sound should be taken into consideration when installing the unit.

  • Page 77: Sound Pressure Level For Outdoor Unit And Yutaki M

    4 Acoustic characteristic curves Sound pressure level for Outdoor unit and YUTAKI M 4.2 Sound pressure level for Outdoor unit and YUTAKI M RAS-2WHVRP RAS-2.5WHVRP 7R139734 7R139735 Heating medium speed Heating medium speed Cooling medium speed Cooling medium speed Minimum audible Minimum audible value of operation value of operation...
  • Page 78 4 Acoustic characteristic curves Sound pressure level for Outdoor unit and YUTAKI M RASM-2VRE RASM-3VRE 7R139734 7R143952 Heating medium speed Heating medium speed Cooling medium speed Cooling medium speed Minimum audible Minimum audible value of operation value of operation noise noise Central frequency (cycle per second) Central frequency (cycle per second)

  • Page 79: Working Range

    5 Working range W o r k i n g r a n g e Index Power supply working range ......................... 72 Temperature working range........................72 5.2.1 Space heating ............................... 72 5.2.2 DHW ................................73 5.2.3 Swimming pool heating ..........................74 5.2.4 Space cooling (Necessary cooling kit) ......................

  • Page 80: Power Supply Working Range

    5 Working range Power supply working range 5.1 Power supply working range  Nominal power supply • Single phase: 1~ 230V 50Hz  Operating voltage Between 90 and 110% of the nominal voltage.  Starting voltage Always higher than 85% of the nominal voltage. 5.2 Temperature working range MODEL 2.0HP...

  • Page 81: Dhw

    5 Working range Temperature working range  YUTAKI M (2.0/3.0)HP Water outlet temperature (ºC)  Continuous working range.    Operation not possible.  Starting heat pump + Back-up heater.   Starting Heat Pump.   Starting only Back-up Heater operation. ...

  • Page 82: Swimming Pool Heating

    5 Working range Temperature working range  For YUTAKI M (2.0/3.0)HP Water tank temperature (ºC)  Continuous working range.  Starting only Back-up Heater operation.   Maximum setting temperature.  Minimum setting temperature.    Ambient temperature (ºC(DB)) N O T E In case of heating up the DHW tank with an outdoor ambient temperature lower than -5 ºC and without using the DHW electrical heater, the setting temperature must not exceed the maximum value in the specified continuous working range.

  • Page 83: Hydraulic Working Range

    5 Working range Hydraulic working range 5.3 Hydraulic working range 5.3.1 Hydraulic data  YUTAKI S MODEL 2.0 HP 2.5 HP 3.0 HP Minimum water flow rate (*1) Maximum water flow rate (*1) Minimum installation water volume Minimum allowable water pressure Maximum allowable water pressure ...
  • Page 84 5 Working range Hydraulic working range 5.3.2 Pump performance curves N O T E If a water flow rate is selected out of the working range of the unit, it can cause malfunction on the unit. Please, try to operate the pump within the minimum and maximum water flow of the indoor unit.
  • Page 85 5 Working range Hydraulic working range  YUTAKI S COMBI 2.0 HP 2.5 HP Water flow (m Water flow (m 3.0 HP Water flow (m  YUTAKI M 2.0 HP 3.0 HP Water flow (m Water flow (m TCGB0123 rev.2 - 10/2019...
  • Page 87 6 General dimensions G e n e r a l d i m e n s i o n s Index Name of parts and Dimensional data ....................80 6.1.1 Split system - Outdoor unit ..........................80 6.1.2 Split system - Indoor unit ..........................81 6.1.2.1 YUTAKI S ............................
  • Page 88 6 General dimensions Name of parts and Dimensional data 6.1 Name of parts and Dimensional data 6.1.1 Split system - Outdoor unit  RAS-(2-3)WHVRP Dimension Model RAS-2WHVRP 22.5 12.7 6.35 RAS-2.5WHVRP 22.5 12.7 6.35 RAS-3WHVRP 26.5 127.5 15.88 9.52 Units: mm N O T E The dimensions with the * mark indicate the pitch dimension of the holes for attachment of anchor bolts.
  • Page 89 6 General dimensions Name of parts and Dimensional data 6.1.2 Split system - Indoor unit 6.1.2.1 YUTAKI S  RWM-(2.0-3.0)NRE(-W) Front view Side vi Top view Wall support dimensions Units in mm XEKS1729 Nº Part name Nº Part name Plate heat exchanger Unit controller (Except (-W) models) Water pump Electrical box...
  • Page 90 6 General dimensions Name of parts and Dimensional data 6.1.2.2 YUTAKI S COMBI  Standard model RWD-(2.0-3.0)NRWE-200S(-W) Top view Front view Side view XEKS1723 Units in: mm Nº Part name Nº Part name Plate heat exchanger Mounting foot (x4) Water inlet pipe connection Water pump 2.0-3.0HP: G 1”...
  • Page 91 6 General dimensions Name of parts and Dimensional data RWD-(2.0-3.0)NRWE-260S(-W) Top view Front view Side view Units in: mm XEKS1724 Nº Part name Nº Part name Plate heat exchanger Mounting foot (x4) Water inlet pipe connection Water pump 2.0-3.0HP: G 1” female Water outlet pipe connection Electric water heater 2.0-3.0HP: G 1”...
  • Page 92 6 General dimensions Name of parts and Dimensional data  Model for solar combination RWD-(2.0-3.0)NRWSE-260S(-W) Top view Front view Side view Units in: mm XEKS1725 Nº Part name Nº Part name Water inlet pipe connection Plate heat exchanger 2.0-3.0HP: G 1” female Water outlet pipe connection Water pump 2.0-3.0HP: G 1”...
  • Page 93 6 General dimensions Name of parts and Dimensional data  Model for UK market RWD-(2.0-3.0)NRWE-200S-K Top view Front view Side view XEKS1755 Units in: mm Nº Part name Nº Part name Plate heat exchanger 21 Water inlet pipe connection 2.0-3.0HP: G 1” female Water pump 22 Water outlet pipe connection 2.0-3.0HP: G 1”...
  • Page 94 6 General dimensions Name of parts and Dimensional data RWD-(2.0-3.0)NRWE-260S-K Top view Front view Side view XEKS1756 Units in: mm Nº Part name Nº Part name Water inlet pipe connection Plate heat exchanger 2.0-3.0HP: G 1” female Water outlet pipe connection Water pump 2.0-3.0HP: G 1”...
  • Page 95 6 General dimensions Name of parts and Dimensional data 6.1.3 Monobloc system - YUTAKI M RASM-(2-3)VRE Top view Front view Side view Bottom view Units in mm. XEKS 1931 Nº Part name Nº Part name Compressor Stop valve for gas line - Ø15.88 (5/8”) Stop valve for liquid line - 2HP:Ø6,35(1/4") Water side heat exchanger - 3HP:Ø9.52 (3/8”)
  • Page 96 6 General dimensions Service space 6.2 Service space 6.2.1 Split system - Outdoor unit RAS-(2-3)WHVRP ≥100 ≥250 N O T E Please refer to the Service Manual for detailed information. 6.2.2 Split system - Indoor unit 6.2.2.1 YUTAKI S RWM-(2.0-3.0)NRE(-W) Front view Top view H: 1200~1500 mm...
  • Page 97 6 General dimensions Service space 6.2.2.2 YUTAKI S COMBI  Standard model and UK market RWD-(2.0-3.0)NRWE-(200/260)S(-K)(-W) Front view Top view Units in mm.  Model for solar combination RWD-(2.0-3.0)NRWSE-260S(-W) Front view Top view Units in mm. TCGB0123 rev.2 - 10/2019...
  • Page 98 6 General dimensions Service space 6.2.3 Monobloc system - YUTAKI M RASM-(2-3)VRE Top view Top view Air inlet Air outlet Front view Units in mm. TCGB0123 rev.2 - 10/2019...
  • Page 99 7 Refrigerant cycle and hydraulic circuit R e f r i g e r a n t c y c l e a n d h y d r a u l i c c i r c u i t Index Refrigerant cycle and hydraulic circuit for Split system .................
  • Page 100 7 Refrigerant cycle and hydraulic circuit Refrigerant cycle and hydraulic circuit for Split system 7.1 Refrigerant cycle and hydraulic circuit for Split system 7.1.1 YUTAKI S  RAS-(2-3)WHVRP + RWM-(2.0-3.0)NRE(-W) TCGB0123 rev.2 - 10/2019...
  • Page 101 7 Refrigerant cycle and hydraulic circuit Refrigerant cycle and hydraulic circuit for Split system 7.1.2 YUTAKI S COMBI  RAS-(2-3)WHVRP + RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K) TCGB0123 rev.2 - 10/2019...
  • Page 102 7 Refrigerant cycle and hydraulic circuit Refrigerant cycle and hydraulic circuit for Monobloc system - YUTAKI M 7.2 Refrigerant cycle and hydraulic circuit for Monobloc system - YUTAKI M  RASM-(2-3)VRE TCGB0123 rev.2 - 10/2019...
  • Page 103 8 Refrigerant and water piping R e f r i g e r a n t a n d w a t e r p i p i n g Index General notes before performing piping work ..................96 8.1.1 Piping work ..............................96 8.1.2 Suspension of refrigerant and water pipes ....................
  • Page 104 8 Refrigerant and water piping General notes before performing piping work 8.1 General notes before performing piping work 8.1.1 Piping work • Prepare locally-supplied copper pipes. • Select the piping size with the correct thickness and correct material able to withstand sufficient pressure. •...
  • Page 105 8 Refrigerant and water piping Refrigerant circuit 8.2 Refrigerant circuit 8.2.1 General notes R32 refrigerant This appliance is filled with R32, an odourless flammable refrigerant gas with low burning velocity (A2L class pursuant to ISO 817). If the refrigerant is leaked, there is a possibility of ignition if it enters in contact with an external ignition source. Make sure that unit installation and refrigerant piping installation comply with applicable legislation in each country.
  • Page 106 8 Refrigerant and water piping Refrigerant circuit  Minimum area requirements In case of total refrigerant amount ≥1.84 kg, the unit should be installed, operated and stored in a room with a floor area larger than the minimum criteria. Use following graphic and table to determine these minimum criteria: Refrigerant Minimum Area Amount (kg)
  • Page 107 8 Refrigerant and water piping Space heating and DHW 8.2.3 Refrigerant charge 8.2.3.1 Refrigerant charge amount YUTAKI (S / S COMBI) The R32 refrigerant is factory charged in the outdoor unit with a refrigerant charge amount for 10 m of piping length between outdoor and indoor unit.
  • Page 108 8 Refrigerant and water piping Space heating and DHW 8.3.2 Additional hydraulic necessary elements for DHW The next hydraulic elements are necessary to correctly perform the domestic hot water circuit:  COMMON The following elements are required for all YUTAKI units. Type Nº...
  • Page 109 8 Refrigerant and water piping Space heating and DHW  YUTAKI S / YUTAKI M Type Nº Part name Water inlet (Space heating) Water outlet (Space heating) Heating coil inlet Piping connections Heating coil outlet Water inlet (DHW) Water outlet (DHW) Shut-off valve (factory-supplied) Factory (Field-supplied for YUTAKI M...
  • Page 110 1 Recirculation water pump (field supplied): this water pump (3) will help to correctly recirculate the hot water to the DHW inlet. • 1 Water check valve (ATW-WCV-01 accessory): this HITACHI accessory (4) is connected after the recirculation water pump (31) in order to ensure the non-return of water. •...
  • Page 111 8 Refrigerant and water piping Space heating and DHW 8.3.5 Requirements and recommendations for the hydraulic circuit • The maximum piping length depends on the maximum pressure availability in the water outlet pipe. Please check the pump curves. • The indoor unit is equipped with an air purger (factory supplied) at the highest location of the Indoor Unit. If this location is not the highest of the water installation, air might be trapped inside the water pipes, which could cause system malfunction.
  • Page 112 8 Refrigerant and water piping Space heating and DHW 8.3.6 Water piping  Water piping length Consider the following guidelines when designing the water circuit. YUTAKI S Item YUTAKI S COMBI Maximum water piping length between indoor unit and DHW tank 10 m Maximum water piping length between indoor unit and 3-way valve Maximum water piping length between 3-way valve and DHW tank...
  • Page 113 8 Refrigerant and water piping Space heating and DHW 8.3.7 Water quality C A U T I O N • Water quality must be according to EU council directive 98/83 EC. • Water should be subjected to filtration or to a softening treatment with chemicals before application as treated water. •...
  • Page 115 9 Electrical and control settings E l e c t r i c a l a n d c o n t r o l s e t t i n g s Index General check ............................. 108 System wiring diagram ........................110 Electrical connection ..........................111 9.3.1 Wiring size ..............................111 9.3.2 Minimum requirements of the protection devices ..................112...
  • Page 116 9 Electrical and control settings General check 9.1 General check • Make sure that the following conditions related to power supply installation are satisfied: The power capacity of the electrical installation is large enough to support the power demand of the YUTAKI system (outdoor unit + indoor unit + DHW tank (if apply)).
  • Page 117 9 Electrical and control settings General check • The status of Harmonics for each model, regarding compliance with IEC 61000-3-2 and IEC 61000-3-12, is as follows: Models Status regarding Split system Monobloc system compliance with IEC 61000-3-2 and Indoor unit IEC 61000-3-12 Outdoor unit YUTAKI M...
  • Page 118 9 Electrical and control settings System wiring diagram 9.2 System wiring diagram Connect the units according to the following electric diagram: Terminal board Field wiring Circuit breaker Field-supplied Earth leakage breaker Outdoor-Indoor communication Internal wiring YUTAKI (S / S COMBI) Outdoor unit Operating Line (Twisted Shielded Pair Cable)
  • Page 119 9 Electrical and control settings Electrical connection 9.3 Electrical connection C A U T I O N • Check to ensure that the field supplied electrical components (mains power switches, circuit breakers, wires, connectors and wire terminals) have been properly selected according to the electrical data indicated on this chapter and they comply with national and local codes.
  • Page 120 9 Electrical and control settings Electrical connection 9.3.2 Minimum requirements of the protection devices C A U T I O N • Ensure specifically that there is an Earth Leakage Breaker (ELB) installed for the units (outdoor and indoor unit). •...
  • Page 121 9 Electrical and control settings Transmission wiring 9.4 Transmission wiring 9.4.1 YUTAKI units • This is the transmission wiring between outdoor and indoor unit, ATW-RTU(*) communication and Central devices. • The transmission is wired to terminals 1-2. • The H-LINK II wiring system requires only two transmission cables that connect the indoor unit and the outdoor unit in case of split system and also connect the indoor unit with ATW-RTU(*) or central devices like ATW-TAG-02, ATW- KNX-02 and ATW-MBS-02.
  • Page 122 9 Electrical and control settings Optional indoor unit wiring (accessories) 9.5 Optional indoor unit wiring (accessories)  Summary of the terminal board connections for YUTAKI units YUTAKI M YUTAKI S / S COMBI TCGB0123 rev.2 - 10/2019...
  • Page 123 Terminal Line common for input 1 and input 2. The air to water heat pump system has been designed to allow the connection of a remote thermostat (HITACHI offers the room thermostat ATW-RTU-04 as accessory) to effectively Input 1 (Demand ON/OFF) (*) control your home’s temperature.
  • Page 124 9 Electrical and control settings Optional indoor unit wiring (accessories) Mark Part name Description YUTAKI M: Auxiliary power YUTAKI M: Power supply for ATW-RTU and central device YUTAKI S / S COMBI: Aquastat YUTAKI S / S COMBI: Terminals intended for the connection of the Aquastat security security for circuit 2 (WP2) accessory (ATW-AQT-01) for controlling water temperature of the circuit 2.
  • Page 125 9 Electrical and control settings Setting of DIP switches and RSW switches 9.6 Setting of DIP switches and RSW switches 9.6.1 Outdoor unit RAS-(2/2.5/3)WHVRP and RASM-(2-3)VRE 9.6.1.1 Location of DIP switches and rotary switches The PCB in the outdoor unit is operating with DIP switches and push switches. The location is as follows: PCB2 PCB1 PCB1...
  • Page 126 9 Electrical and control settings Setting of DIP switches and RSW switches  DSW3: Capacity Setting (No setting is required) RAS-2WHVRP Model RASM-2VRE Setting position Model RAS-2.5WHVRP Setting position RAS-3WHVRP Model RASM-3VRE Setting position  DSW4 / RSW1: No setting is required (Do not change) Factory setting Factory setting position.
  • Page 127 9 Electrical and control settings Setting of DIP switches and RSW switches 9.6.1.3 LED indication Name Colour Indication PCB1 LED1 Power LED2 Green Communication with inverter LED3 Yellow H-Link transmission LED4 Yellow Not used LED351 For inspection LED353 For inspection PCB2 For inspection For inspection...
  • Page 128 9 Electrical and control settings Setting of DIP switches and RSW switches  DSW1: Additional setting 0 Factory setting. No setting is required. YUTAKI S (*) YUTAKI S COMBI (*) YUTAKI M (*) N O T E (*): In case of installing the “Cooling kit” accessory, set the pin 4 of DSW1 to ON in order to enable the cooling operation. ...
  • Page 129 9 Electrical and control settings Setting of DIP switches and RSW switches DHW 3-way valve forced ON (All models) Mirror function (YUTAKI M) C A U T I O N • Never turn all DSW4 dip switch pins ON. If this happens, the software of the unit will be removed. •...
  • Page 130 9 Electrical and control settings Setting of DIP switches and RSW switches  DSW15 & RSW2 / DSW16 & RSW1: Not used DSW16 RSW1 Factory setting N O T E Don’t change this setting, otherwise malfunction will be occur.  DSW18: Not used Factory setting (Do not change)
  • Page 131 10 Optional functions 1 0 . O p t i o n a l f u n c t i o n s Index 10.1 Indoor unit ............................124 10.1.1 Optional functions by DSW setting ......................124 10.1.2 Optional functions by Unit controller (PC-ARFH1E) .................. 126 10.1.3 ...
  • Page 132 10 Optional functions Indoor unit 10.1 Indoor unit 10.1.1 Optional functions by DSW setting Optional function Code Explanation description DSW1#4:ON Heating & Cooling (ON) In case of cooling operation, this DSW should be set to ON + Cooling Unit kit accessory. DSW3#3:ON This option can be used to switch all 3 steps of the electric heater at 1 step heater for 3 phase...
  • Page 133 10 Optional functions Indoor unit Optional function Code Explanation description DSW5#1:OFF;2#OFF C1 : Average OU Sensor C2 : Average OU Sensor DSW5#1:OFF;2#ON C1 : Average OU Sensor A 2nd outdoor ambient temperature sensor is available as an C2 : Average Aux Sensor accessory, in case that the built-in ambient temperature sensor of the outdoor unit cannot provide a reliable temperature measurement to the system because of restraints of the installation location.
  • Page 134 10 Optional functions Indoor unit 10.1.2 Optional functions by Unit controller (PC-ARFH1E) 10.1.2.1 Optional functions for Space Heating or Space Cooling Optional function Explanation Model This function is used exclusively for the process of drying screed that has been newly applied to floor heating system. ...
  • Page 135 10 Optional functions Indoor unit 10.1.2.3 Optional functions for Heat pump Optional function Explanation Model In some cases, water pump of the YUTAKI unit is not sized for big heating installation (small water pump). In this case, a hydraulic separator or buffer tank and secondary water pump has to be used to ensure proper water pump dimensioning.
  • Page 136 10 Optional functions Indoor unit 10.1.2.4 Optional functions for Unit controller (PC-ARFH1E) Optional function Explanation Model This favourite button has the possibility to customize the action according on system configuration: Holiday Favourite action Eco/Comfort Timer Night shift DHW Boost UTC Zone: Europe spans 7 primary time zones (5 of them can be seen on the map in this article, while 2 other zones contain the European part of Kazakhstan and some UTC Zone very eastern territories of European Russia).
  • Page 137 10 Optional functions Indoor unit Input functions (To be configured from the unit controller) Function # Input Description Disabled Demand ON/OFF Send Demand ON or OFF Operation to Circuit 1 and Circuit 2 This function must be used to block or limit the heat pump when restricted by Electric company.
  • Page 138 10 Optional functions Indoor unit Output signals and output ports Code Name Port Output Output 1 TB2 #34 (N) & 35 (L) 230 V Output 2 TB2 #34 (N) & 36 (L) 230 V Output 3 TB2 #37&38 Free voltage signal Output 4 TB2 #39&40 Free voltage signal...
  • Page 139 10 Optional functions Additional functions by accessory sensor 10.2 Additional functions by accessory sensor HITACHI offers to its users the option to add more functions to the inputs from signals coming from some specific  sensors. The configuration for this purpose is explained below: I/O Terminal name Factory default setting Port for setting Input/Output type (Connector number) Display Setting contents Function # Sensor 1 CN26 #2 Disabled Sensor 2...
  • Page 140 10 Optional functions Output/input signals for outdoor units and YUTAKI M units 10.3 Output/input signals for outdoor units and YUTAKI M units  Output signals through 7-segment display on the unit PCB The system has several output signals, which can be selected using the following connectors of the outdoor unit and YUTAKI M PCB: •...
  • Page 142 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. Ronda Shimizu, 1 - Polig. Ind. Can Torrella 08233 Vacarisses (Barcelona) Spain HITACHI certifies that our products have met EU consumer safety, health and environmental requirements. Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. is certified with: ISO 9001 of AENOR, Spain for its Quality Management accordance with the standard.

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