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Hitachi 7E300020 Technical Catalogue Download Page 95

8. Refrigerant cycle and hydraulic circuit

TCGB0075 rev.0 - 11/2012

95

8

8. 

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

8.1.  RAS-(4-6)H(V)RNME-AF + RWH-(4.0-6.0)FS(V)NFE combination ......................................................96

Summary of Contents for 7E300020

Page 1: ...RWH 4 0 6 0 FS V NFE Indoor unit RAS 4 6 H V RNME AF Outdoor unit DHWS 195 260 S 2 0H1E DHW tank PC S80TE LCD controller Technical Catalogue YUTAKI S80 SERIES ...

Page 2: ......

Page 3: ...nefits General data Capacities and Selection data Acoustic characteristic curves Working range General dimensions Refrigerant cycle Piping work and refrigerant charge Electrical wiring Installation configurations Optional functions Troubleshooting 1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Page 4: ......

Page 5: ...acity 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 benefits 37 2 3 1 Different possibles installation types 37 2 3 2 Easy unit installation 38 2 3 3 Easy and flexible electrical installation 39 2 4 Start up benefits 40 2 4 1 ...

Page 6: ...80 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 C...

Page 7: ...nd 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 Refrigerant and water piping 97 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 Refrigera...

Page 8: ...or unit 124 10 5 Common wiring 130 10 5 1 Electrical wiring between indoor and outdoor unit of the air to water heat pump system 130 10 5 2 Electrical wiring between DHW tank and indoor unit 133 11 Installation configuration 135 11 1 System configurations 136 11 2 Installation configurations 138 11 2 1 Main configurations 139 11 2 2 Additional combinations 142 12 Optional functions 147 12 1 Indoor...

Page 9: ...ral information Index 1 1 General information 10 1 1 1 General notes 10 1 1 2 Introduction 10 1 1 3 Environment friendly units 11 1 2 Applied symbols 12 1 3 Product guide 13 1 3 1 Product guide 13 1 3 2 Model s classification 15 1 3 3 Accessory code list 16 ...

Page 10: ...ps produce sanitary hot water and heating like any oil or gas boiler but transforms renew able energy from the air outside into heat Every 1kW of electricity used to power the heat pump can provide up to 4kW of energy for heating this can reduce heating bills by up to 60 and cut CO2 emissions by 50 compared to traditional boiler led systems The extra innovation in the YUTAKI S80 is that it has two...

Page 11: ...s sun radiation to the heat exchanger of DHW tank Swimming pool operation YUTAKI S80 can also be used to heat up the swimming pool water temperature up to a value between 24 and 33ºC 1 1 3 Environment friendly units The new HITACHI s YUTAKI S80 series uses environmentally friendly R410A R134a gas refrigerants and the RoHS and Green Dot regulations are applied throughout the manufacturing and insta...

Page 12: ...to your safety and phy sical wellbeing Not taking these instructions into account could lead to serious very serious or even fatal injuries to you and others in the proximities of the unit In the texts following the danger symbol you can also find information on safe procedures during unit installation CAUTION The text following this symbol contains information and instructions relating directly t...

Page 13: ...it Code RAS 4HVRNME AF 7E300020 RAS 4HRNME AF 7E300120 RAS 5HVRNME AF 7E300021 RAS 5HRNME AF 7E300121 RAS 6HVRNME AF 7E300022 RAS 6HRNME AF 7E300122 Indoor unit Indoor unit Single phase 1 230V 50Hz Three phase 3N 400V 50Hz Unit Code Unit Code RWH 4 0FSVNFE 7E480007 RWH 4 0FSNFE 7E480107 RWH 5 0FSVNFE 7E480008 RWH 5 0FSNFE 7E480108 RWH 6 0FSVNFE 7E480009 RWH 6 0FSNFE 7E480109 ...

Page 14: ...0Hz Unit Code Unit Code DHWS195S 2 0H1E 7E544102 DHWS260S 2 0H1E 7E544103 NOTE Models with integrated LCD controller PC S80TE LCD controller LCD controller Unit Code PC S80TE 7E543001 NOTE For indoor unit alone without tank or indoor unit with other tank non HITACHI tank beside the indoor unit the LCD controller is needed ...

Page 15: ...nit water module high temperature Position separating hyphen fixed Compressor power HP 4 0 5 0 6 0 System Free V Single phase unit 1 230V 50Hz Three phase unit 3N 400V 50Hz R 410A refrigerant R 134a refrigerant Made in Europe RWH X X FS X N F E Classification of Domestic Hot Water Tank accessory Unit type YUTAKI S80 domestic hot water tank Model 195 260 Stainless Position separating hyphen fixed E...

Page 16: ...Only for Intelligent Thermostat application 7E549901 Other accessories Accessory Name Code Figure ATW FWP 01 Tank beside the indoor unit installation kit 7E549915 WEH 6E Water electric heater 90500002 WEH 6E ATW HSK 01 BDHM1 Hydraulic separator 7E549905 BDHM1 ATW 3WV 01 VID3V1 3 way valve Type 1 Internal thread and spring return 7E549906 VID3V1 ATW 3WV 02 3 way valve Type 2 External thread and 2 p...

Page 17: ...W WTS 02 Water temperature sensor Second temperature control 7E549911 ATW WTS 02Y Universal water temperature sensor DHW boiler and electric heater combination 9E500004 ATW WCV 01 Water check valve 9E500014 DHWT SWG 01 Security water valve for DHW tank 70544902 NOTE The 2nd temperature kit ATW 2KT 01 must be installed with the following accessories Mixing valve motor ATW MVM 01 Water temperature s...

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Page 19: ...nd flexible electrical installation 39 2 4 Start up benefits 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 configuration an...

Page 20: ...Tank integrated over the indoor unit Indoor unit with HITACHI tank Tank beside the indoor unit and Indoor unit with other tank Non HITACHI tank beside the indoor unit 7 Compact size 595 mm width very suitable for indoor utility room 600 mm 8 Easy servicing allowing that the most important components can be accessible and extracted from the front side of the unit For example the electrical box can ...

Page 21: ...means less electrical consumption and therefore a re duction in CO2 emissions 75 25 Combinability with solar energy YUTAKI S80 allows the combination with solar panels for the Domestic Hot Water operation The air to water heat pump will provide a part of the required heating and the rest of required heating will be provided by the solar panel As it is known the solar panels get the heat from the s...

Page 22: ...he best solution to replace existing boilers which work on systems with old radiators and weak isolation or for new installations with very high capacity requirements For new installations with low capacity requirements the best solution could be YUTAKI S unit By this way HITACHI covers the main heating requirements of the market Ambient temperature ºC WB Water outlet temperature ºC Selectable wat...

Page 23: ... stage cycles high and low temperatures thermally connected by an intermediate heat exchanger This cycle is known as cascade cycle The low temperature cycle use a refrigerant R 410A which allows to evaporate at very low temperatures at positive pres sures but condensing in the intermediate heat exchanger at pressures not too high by transferring heat to the evaporator of the high temperature cycle...

Page 24: ...be activated R410A R134a and R134a H2O This control is possible by the actuation over the solenoid valves SV1 and SV2 When the unit requires working with only one cycle the SV1 remains ON and SV2 OFF whereas that when the installation requires working with the cascade cycle the SV1 pass to OFF and SV2 pass to ON 1 cycle operation 2 cycles operation R 410A R 410A ON SV1 SV2 OFF R 410A R 134a R 134a...

Page 25: ...sified as low energy power input allow the maximum energy efficiency resulting in the highest coefficient of performance COP of the market NOTE Conditions range COP Water inlet outlet temperature 30 35 ºC Outdoor Temperature DB WB 7 6 ºC 2 2 5 Wide capacity range The YUTAKI S80 system provides the highest maximum heating capacity of the market at high water outlet temperatures and for a wide range...

Page 26: ...tems Parallel bi valent systems For boiler combination Selecting the different configuration types it is possible to adapt the system to all customer requirements providing a wide application range from the simplest configuration to complete configuration as shown below Radiator fan coil heating floor or both 2nd temperature area Also combinable with the following options Domestic Hot Water DHW Us...

Page 27: ...iquid receiver Stop valve of the gas pipe Stop valve of the liquid pipe Water pump Incorporated to protect the plate heat exchanger Water strainer T branch Safety valve 3 way valve Air purger Check valve Indoor unit compressor 1st cycle expansion valve Check valve Expansion vessel DHW tank Solenoid valves R410A R134a R134a H2O R410A H2O 2nd cycle expansion valve Highly efficiency plate heat exchan...

Page 28: ... by the surface of the slitless fin and the heating performance is improved under the low temperature conditions Compact design and high efficiency by arranging narrow heat exchanger tubes in 3 rows Heat exchanger configuration aiming at fluid loss reduction Slit Fin Slitless Fin Side flow technology Energy saving and uniform air velocity distribution by side flow technology Air inlet Air speed m ...

Page 29: ...mic than earlier models It has a greater surface area in contact with the air and a better turning angle preventing turbulence and allowing the ventilator to be fitted lower Additionally the rib structure synchronized with rotation flow from the fan reduces the air resistance at the air outlet grille Optimized distribution at air outlet angle Optimized distribution at air inlet angle Increased ang...

Page 30: ...s back and forth at a frequency of several tens of kHz This controls the ON OFF duty rate per cycle and changes the voltage applied to the fan motor to control the rotation speed HITACHI scroll compressors R410A for the outdoor unit and R134a for the indoor unit Highly efficient scroll compressor The HITACHI DC INVERTER scroll compressor has been developed to increase efficiency reliability and to...

Page 31: ...ays at optimum level regardless of the charge so that the ratio between the discharge pressure Pd and the suction pressure Ps is optimum as in the following graphic Pd Ps Overcompression zone based on the new pres sure regulation system Volume Pressure Lubrication Bearing in mind that lubrication is one of the most important factors in the service life of a compressor HITACHI has deve loped a syst...

Page 32: ...ressure chamber Oldham ring Shaft Oilway Optimized design of stator coils The design of the stator coils positioned to optimize the magnetic field significantly reduce heat losses and increase the motor s efficiency at low speeds Compressor efficiency New stator coil design Current model Efficiency rpm DC compressor with neodymium magnet The use of a DC compressor with neodymium magnets in the rot...

Page 33: ... the temperature operating uneconomically and wasting energy Power consumption in heating mode Compressor rpm High power operation Energy saving operation Machine with constant speedS RAS H V RNME AF Time In case of existing machines with constant speed repeated turning on and off wastes energy Optimized rotor shape The scroll compressor allows reduced noise and vibration levels due to The compres...

Page 34: ...leading to very high values of the heat transfer overall coefficient High flow turbulence in the fluids achieving turbulent regimes for low Reynolds numbers This high turbulence allows lower circulating speeds on the fluids Lower heat losses since only the edges of the plates are exposed to the outside environment and additionally to having small thicknesses it can be readily isolated Water pump L...

Page 35: ...ng cone sealing against specially prepared O rings The actuator s basic design is uncomplicated with its integrated transmission A micro processor based circuit board is located under the cover and it among other things has an integrated anti jamming program which makes sure that at least every 7th day a complete change over cycle is made to prevent the regulating cone from jamming Other life shor...

Page 36: ... injected in Neopor EPS in grey color High efficiency tank Optimum design of the heat exchanger coil to provide the maximum domestic hot water production capacity to the system Compact size and reduced installation space Elimination of cold zones at the bottom of the storage tank to prevent the risk of bacteria proliferation e g legionella Anodic protection Anodic protection installed with 200g al...

Page 37: ...vide several different possibilities of installation configurations A Indoor unit alone Without tank B Indoor unit with HITACHI tank Tank integrated over the indoor unit C Indoor unit with HITACHI tank Tank beside the indoor unit D Indoor unit with other tank Non HITACHI tank beside the indoor unit Depending on the configuration type the installation procedure will be different ...

Page 38: ...ser s interface for domestic hot water tank The LCD user s interface is hidden and protected by its service cover RWH 4 0 6 0 FS V NFE DHWS195S 2 0H1E DHWS260S 2 0H1E RWH 4 0 6 0 FS V NFE DHWS195S 2 0H1E RWH 4 0 6 0 FS V NFE DHWS260S 2 0H1E NOTE Height dimensions are shown with the minimum mounting foot height These values can be adjusted up to 30 mm Many piping outlet possibilities Refrigerant pi...

Page 39: ...electrical works electrical installation connection dip switch setting is reflected in these documents Schematic label The different possible connections to the terminal boards are indicated by means of a schematic label with the figure corresponding at the required configuration see previous figure Big Electrical Wiring Diagram and Caution Label There are two labels sticked on the rear side of th...

Page 40: ...1264 part 4 When the user activates the floor screed drying function the water set point follows a predetermined schedule 1 Water set point is kept constant at 25ºC for 3 days 2 Water set point is set to the maximum heating supply temperature but always limited to 55ºC for 4 days 3 After 7 days started the floor screed drying the water outlet temperature will return at the assig ned water temperat...

Page 41: ...ss to all the display menus HITACHI OK Buttons description RUN STOP unit Pressing this button it will be switched ON OFF the selected zone or all the unit if there is no zone selected OK Used to select items and confirm the edition of them 4 Arrows For moving inside the menus and views Return Used as a cancel button when editing an item or for going back to the main menu from the global view Easy ...

Page 42: ...wimming pool control Unit mode Heating DHW heater operation Heater steps Configuration menu Timer indication Unit status signals Unit mode local central NEW Two configuration modes User mode This mode allows to the user the setting of some parameters and the selection of some options of the LCD user s interface Installer mode High privilege mode for setting other configuration parameters available...

Page 43: ...ones with different required temperatures radiators heating floor for example by means of the 2nd Temperature Room Thermostat as accessory The mixing valve is controlled to maintain the second supply temperature at the second temperature set point The system control then decides how much to open or close the mixing valve to achieve the desired position for the valve To heat pump system control To ...

Page 44: ...setting at low ambient temperature Temperature setting at high ambient temperature Low ambient temperature High ambient temperature OTC Gradient Only for heating space Water target is selected by an Outside Temperature Compensated OTC control that is defined by a different gradient of the curve The initial point of the curve is always 20ºC 20ºC Water outlet target 20ºC at outdoor ambient temperatu...

Page 45: ... selected is by gradient Temperature limits have priority against all other temperature set point modifications and minimum maximum water temperature is limited by air to water heat pump s working range Room thermostat units There are available two types of room thermostat units ON OFF room thermostat unit accessory When the room temperature setting is higher than the room actual tempe rature it i...

Page 46: ...otal input power of 6 0 kW For water electric heaters of other total input power the input power for each step will be different Electric heater for emergency mode Optional function In case of outdoor unit malfunction the required heating can be provided by the electric heater One step heater for 3 phases unbalance Optional function For 3 phases units in order to prevent 3 phases unba lance of the...

Page 47: ...y operation In case of outdoor unit or indoor unit malfunction the domestic hot water tank can be heated by an internal domestic hot water tank heater activating an specific switch placed beside indoor unit manometer In this case the temperature setting is performed by the heater s thermostat Switch for DHW emergency operation NOTE Refer to the Electrical data for the details of CB and ELB Space h...

Page 48: ...peration will be performed by two different modes Standard mode The DHWT will start heating when the water tank temperature is low enough for heat pump to be started In this mode the DHW is always heated by the heat pump High demand mode The DHWT will start heating if the difference between the maximum water set point temperature and the actual DHW temperature is bigger than a predetermined value ...

Page 49: ...re protection Optional function This function helps to prevent these components from sticking during long periods of inactivity by running every week the components during a short period 2 6 5 Other optional functions 2nd outdoor temperature sensor Accessory Improved for YUTAKI S80 In the cases where the outdoor unit is installed into a location where its own outdoor ambient temperature sensor can...

Page 50: ...anaged remotely from Internet Automatic summer switch OFF The system will switch OFF the heating mode when the daily average outdoor temperature of the previous day rises above certain value at the summer switch OFF activation temperature Available four external outputs signals for optional functions There are available four output optional signals that provide four optional functions of the syste...

Page 51: ...ater inlet outlet temperature room temperature of cir cuits 1 and 2 outdoor ambient temperature gas liquid temperature Set point The set point temperatures will be displayed in order to allow to the user installer compare the actual and setting temperatures in any moment room temperature and OTC supply temperature set point of circuits 1 and 2 water temperature setting Additionally a large variety...

Page 52: ...ide of the unit For example the electrical box can be easily extracted from the unit s front side only disconnecting the wire to wire connection Top view Front view Wire to wire connections 2 7 4 High accessibility to the water pressure ports Water pressure ports for installation comissioning are accessible only removing the indoor unit front and upper cover W a t e r pressure ports ...

Page 53: ...2 7 5 Alarm hystorical data This option is available in order to facilitate a knowledge of the last alarms registered on the LCD user s interface The software can save up to the last 20 alarms showing on the screen the following data Date Time Alarm code ...

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Page 55: ...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 3 General data ...

Page 56: ...DB WB 7 6 ºC kW 10 0 12 0 14 0 COP 2 56 2 56 2 51 Additional conditions Nominal Conditions Water inlet outlet 35ºC Outdoor temperature DB WB 7 8 ºC kW 7 6 9 0 9 4 COP 2 36 2 32 2 29 Nominal Conditions Water inlet outlet 45ºC Outdoor temperature DB WB 7 8 ºC kW 10 0 12 0 14 0 COP 2 30 2 30 2 25 Nominal Conditions Water inlet outlet 55ºC Outdoor temperature DB WB 7 8 ºC kW 10 0 12 0 14 0 COP 2 15 2 ...

Page 57: ... 2 50 2 50 Heat exchanger Multi pass cross finned tube Outdoor fan Propeller fan Quantity 2 2 2 Air flow rate m min 80 90 100 Power W 70 70 70 70 70 70 Refrigerant pipe connection Flare nut connection factory supplied Size Liquid piping mm in Ø9 53 3 8 Ø9 53 3 8 Ø9 53 3 8 Gas piping mm in Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Refrigerant charge kg 3 90 4 00 4 00 Maximum current A 18 0 23 0 23 0 Packagi...

Page 58: ...t exchanger Multi pass cross finned tube Condenser fan Propeller fan Quantity 1 1 1 1 1 1 Air flow rate m min 80 90 100 Power W 70 70 70 70 70 70 Refrigerant pipe connection Flare nut connection factory supplied Size Liquid piping mm in Ø9 53 3 8 Ø9 53 3 8 Ø9 53 3 8 Gas piping mm in Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Refrigerant charge kg 3 90 4 00 4 00 Maximum current A 7 0 11 0 13 0 Packaging meas...

Page 59: ...W 3 0 3 0 3 0 Refrigerant charge kg 2 5 Refrigerant pipe connection Flare nut connection 2 Dimensions Liquid pipe mm Ø 9 53 3 8 Gas pipe mm Ø 15 88 5 8 Water pipe connection Screwed connections Space heating Inlet diameter inch Flexible pipe G 1 male Outlet diameter inch Flexible pipe G 1 male DHW Inlet diameter inch Flexible pipe G 3 4 male Outlet diameter inch Flexible pipe G 3 4 male Expansion ...

Page 60: ... 0 Refrigerant charge kg 2 5 Refrigerant pipe connection Flare nut connection 2 Dimensions Liquid pipe mm Ø 9 53 3 8 Gas pipe mm Ø 15 88 5 8 Water pipe connection Screwed connections Space hea ting Inlet diameter inch Flexible pipe G 1 male Outlet diameter inch Flexible pipe G 1 male DHW Inlet diameter inch Flexible pipe G 3 4 male Outlet diameter inch Flexible pipe G 3 4 male Expansion vessel vol...

Page 61: ... tank water working pressure bar 6 Max heating coil water working temperature C 75 Max heating coil water working pressure bar 3 Tank Insulation Material NEOPOR Thickness mm 50 Main components Heat exchanger Quantity 1 Coil surface area m2 1 4 Tank s heater Quantity 1 Heater rating kW 2 0 Type Immersion heater type Piping connections Water inlet domestic connection in Flexible pipe G 3 4 male Wate...

Page 62: ...1 35 1 35 Number of coils unit 1 1 1 Fan unit Fan Type Multi blade centrifugal fan Number unit 2 2 2 Outer diameter mm 544 544 544 Revolutions rpm 376 459 516 422 573 469 Nominal air flow fan m3 min 80 90 100 Motor Type Drip proof enclosure Starting method DC control Power W 70 70 70 70 70 70 Quantity 2 2 2 Insulation class E E E Compressor Model E 306AHD 27A2 E 406AHD 36A2 E 406AHD 36A2 Type Herm...

Page 63: ... coils unit 1 1 1 Fan unit Fan Type Multi blade centrifugal fan Number unit 2 2 2 Outer diameter mm 544 544 544 Revolutions rpm 376 459 516 422 573 469 Nominal air flow fan m3 min 80 90 100 Motor Type Drip proof enclosure Starting method DC control Power W 70 70 70 70 70 70 Q ty 2 2 2 Insulation class E E E Compressor Model E 305AHD 27D2 E 405AHD 36D2 E 405AHD 36D2 Type Hermetic scroll Pressure re...

Page 64: ... 6 1 1 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø28 6 1 1 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø28 6 1 1 8 Water connection mm in Ø28 6 1 1 8 Ø28 6 1 1 8 Ø28 6 1 1 8 Ø28 6 1 1 8 Ø28 6 1 1 8 Ø28 6 1 1 8 Maximum refrigerant operating pressure MPa 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 Maximum water operating pressure MPa 3 6 3 6 3 6 3 6 3 6 3 6 Internal refrigerant volume l 2 11 2 11 2 89 3 00 2 89 2 89 2 89 3...

Page 65: ... and fan motors Max IPT kW MC A CB A ELB nº poles A mA U max V U min V STC A IPT KW RNC A RAS 4HVRNME AF 1 230V 50Hz 253 207 2 06 9 2 3 94 18 0 20 2 40 30 RAS 5HVRNME AF 2 62 11 6 5 75 23 0 25 RAS 6HVRNME AF 3 27 14 5 5 86 23 0 25 RAS 4HRNME AF 3N 400V 50Hz 440 360 2 06 3 0 4 72 7 0 15 4 40 30 RAS 5HRNME AF 2 62 3 9 6 76 11 0 20 RAS 6HRNME AF 3 27 4 8 8 16 13 0 20 3 6 3 Indoor unit Model Power sup...

Page 66: ...60S 2 0H1E NOTE 1 If it is desired to enable the DHW tank heater operation during normal indoor unit operation adjust the DSW4 pin 1 of the PCB1 to the ON position and use these protections CB 40A for single phase 1 or CB 25A for three phase 3N Danger Never connect the DHW tank to the main power supply Always connect it to the YUTAKI S80 indoor unit as ex plained in its Installation and operation ...

Page 67: ...city and selection data Index 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 ...

Page 68: ...lows Firstly the system combination outdoor unit indoor unit is pre selected according to the design conditions Then the theoretical capacity values taken from the different maximum heating capacity tables are corrected by means of the cor rection factors explained in the following pages resulting in the actual capacity which will provide the selected system The DHW tank will be selected depending...

Page 69: ...on cold days Example of Mono energy system NOTE TA Outdoor ambient temperature PH Heating capacity SP1 2 3 Heater steps Bivalent point can be set through the LCD user s interface Air to water heat pump EH capacity Air to water heat pump capacity Heat demand Air to water heat pump Air to water heat pump Heater Bi valent point PH TA Alternating Bi valent system The boiler is configured to alternate ...

Page 70: ... required on the coldest day of the year 13 0 kW 13 0 kW 10 ºC WB Capacity of YUTAKI S80 Heating capacity Outdoor ambient temperature Heating load demanded Installation restrictions Installation type Radiant floor Power supply 1 230V 50Hz Indoor unit lower than outdoor unit 15 m Equivalent piping length between outdoor and indoor unit 20 m These conditions will determine the entry in the maximum h...

Page 71: ...s a table with different values of fD depending on the ambient temperature ºC DB If the correction factor at an ambient temperature does not appear on the table an interpolation will be needed Finally the resulting defrosting correction factor for our outdoor ambient temperature of 10ºC WB is 0 89 Calculation of fLH Both the length of the refrigerant piping used and the height difference between t...

Page 72: ...nt systems are usefull when there is a constant regular heating load and low periods of heating load peaks related to the coldest days of the year NOTE The following check can be used as well for the two combinations Step 1 Initial pre selection Proposed energy system Mono energy Inlet outlet water temperature 47 55 ºC Regular ambient temperature WB DB HR 85 5 4 C Required regular heating load 9 0...

Page 73: ...e heating capacity for the new system has to be calculated for the cold est days conditions 10ºC The maximum heating capacity for an ambient temperature of 10 ºC WB and a water inlet outlet temperature of 47 55 ºC is 13 0 kW Step 2 Heating capacity correction for defrost and piping length The actual heating capacity for the system selected in the coldest days of the year is calculated by applying ...

Page 74: ...RWH 4 0FS V NFE system can be taken as valid The energy system resulting will be the following 17 47 kW 10 ºC WB Capacity of the YUTAKI S80 Heating capacity Outdoor ambient temperature 11 43 kW 5 ºC WB Heating load covered 11 47 kW 10 ºC WB 13 0 kW 10 ºC WB 9 0 kW 5 ºC WB Heating load demanded SP1 SP2 SP3 Three steps electric heater control As it has been explained in chapter Features and benefits...

Page 75: ...side the tank before the use Habitually the temperature s rank is between 45ºC 65ºC In the example below it has been taken 45ºC Calculation of Ti The inlet cold water temperature is the temperature of the water that is filling the tank The cold water rank s temperature is 10ºC 15ºC To calculate an approximate water demand it has been used 12ºC Example Di T 120 x 60 12 45 12 174 6 litres day NOTE D...

Page 76: ... 60 14 1 14 8 15 5 15 8 15 9 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 55 14 2 14 9 15 6 15 9 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 50 14 3 15 0 15 7 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 45 14 5 15 1 15 7 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 16 0 40 8 7 9 9 11 1 11 7 12 5 14 2 15 2 15 6 16 0 16 0 16 0 16 0 16 0 35 9 3 10 5 11 8 12 3 13 3 15 0 15 6 15 9 16 0 16 0 16 0 16 0...

Page 77: ...ition changes the correction factor will be different Defrost correction factor is not valid for special conditions such as during snow or operation in a transitional period Heating capacity Reduced capacity due to frost build up Time Max defrost 10 min 1 cycle 4 3 2 Piping length correction factor The correction factor is based on the equivalent piping length in meters EL and the height between o...

Page 78: ...ength EL consid ering the possible elbows bends The actual piping length L is slightly lower 30 m Heating RAS 4H V RNME AF RAS 5H V RNME AF Heating RAS 6H V RNME AF NOTE The heating capacity should be corrected according to the following formula THA TH x PH THA Actual corrected heating capacity kW TH Heating capacity from heating capacity table kW PH Heating piping length correction factor in ...

Page 79: ...5 Acousticcharacteristiccurves TCGB0075 rev 0 11 2012 79 5 5 Acoustic characteristic curves Index 5 1 Sound pressure level for outdoor unit 80 5 1 1 Considerations 80 5 1 2 Charts 81 ...

Page 80: ...t At 1 meter from the unit s front surface 1 5 meter from floor level 2 The data is measured in an anechoic chamber so reflected sound should be taken into consideration when installing the unit 3 The sound measured with the curve A shown in dB A represents the attenuation in function of frequency as perceived by the human ear 4 Reference acoustic pressure 0dB 20μPa ...

Page 81: ...reshold of continuous noise detection Frequency Hz Frequency Hz Sound pressure level Heating 46 dB A Sound pressure level Heating 48 dB A RAS 6HVRNME AF RAS 4HRNME AF Octave sound pressure dB C Approximate threshold of continuous noise detection Heating Octave sound pressure dB C Heating Approximate threshold of continuous noise detection Frequency Hz Frequency Hz Sound pressure level Heating 50 d...

Page 82: ...NME AF Octave sound pressure dB C Heating Approximate threshold of continuous noise detection Octave sound pressure dB C Approximate threshold of continuous noise detection Heating Frequency Hz Frequency Hz Sound pressure level Heating 48 dB A Sound pressure level Heating 50 dB A ...

Page 83: ...6 Working range TCGB0075 rev 0 11 2012 83 6 6 Working range Index 6 1 Working range 84 ...

Page 84: ... 3 1 3 1 Minimum installation water volume l 40 50 50 Minimum allowable water pressure MPa 0 1 Maximum allowable water pressure MPa 0 3 Indoor temperature installation ºC 5 35 Space heating Outdoor ambient temperature ºC WB Water outlet temperature ºC Domestic hot water tank heating Swimming pool heating DHWT water temperature ºC Outdoor ambient temperature ºC WB Outdoor ambient temperature ºC WB ...

Page 85: ...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 ...

Page 86: ...No Part name Remarks 1 Air intake 2 Air outlet 3 Service cover 4 Electrical switch box 5 Holes for refrigerant piping and electrical wiring piping 6 Drain holes 3 Ø24 7 Drain holes 2 Ø26 8 Holes for fixing machine to wall 4 M5 9 Refrigerant liquid pipe Flare nut Ø9 53 3 8 10 Refrigerant gas pipe Flare nut Ø15 88 5 8 ...

Page 87: ... Low pressure sensor Ps 6 T branch 17 Plate heat exchanger R410A R134a 28 High pressure switch PSH 7 3 way valve 18 Plate heat exchanger R134a H2O 29 Switch for DHW emergency operation 8 Air purger 19 Expansion valve 2nd cycle A R 134a check joint for suction pressu re measuring or vacuum operation 9 Flexible water pipes for space heating factory supplied accessory 20 Upper cover for protection B ...

Page 88: ... 1 Domestic hot water tank 6 Manometer 11 Service access 2 Heater thermostat 7 LCD controller 12 DHW inlet connection 3 4 male 3 Sensor 8 Front cover 13 DHW outlet connection 3 4 male 4 Mounting foot x4 9 Insulation 14 Heating coil inlet connection 3 4 male 5 LCD controller cover 10 Heating coil 15 Heating coil outlet connection 3 4 male ...

Page 89: ...imensions in mm 7 2 1 Outdoor unit RAS 4 6 H V RNME AF 370 1380 7 2 2 Indoor unit and domestic hot water tank optional NOTE Height dimensions are shown with the minimum mounting foot height These values can be adjusted up to 30 mm Indoor unit alone without tank RWH 4 0 6 0 FS V NFE ...

Page 90: ...with HITACHI tank Tank integrated over the indoor unit RWH 4 0 6 0 FS V NFE DHWS190S 2 0H1E RWH 4 0 6 0 FS V NFE DHWS255S 2 0H1E Indoor unit with HITACHI tank Tank beside the indoor unit RWH 4 0 6 0 FS V NFE DHWS190S 2 0H1E RWH 4 0 6 0 FS V NFE DHWS255S 2 0H1E ...

Page 91: ...correct space for the unit servicing it must be taken into account the minimum distances allowed Depending on the position which the service will be done it could be required different spaces 7 3 1 Outdoor unit RAS 4 6 H V RNME AF NOTE For the specific information please refer to Service Manual ...

Page 92: ... space at left side Indoor unit with HITACHI tank Tank integrated over the indoor unit A 700 mm 1 695 mm 30 mm 600 mm 30 mm 700 mm 1 600 mm 695 mm 1 e box removal A 30 mm 30 mm A Service without this space is available but is recommended 250 mm for easy servicing 250 mm 250 mm 250 mm 30 mm 30 mm 250 mm NOTE If there is no space at left and right side could be necessary to disassemble the tank or t...

Page 93: ...ace is available but is recommended 250 mm for easy servicing 1 e box removal A Service without this space is availa ble but is recommended 250 mm for easy servicing Indoor unit with other tank Non HITACHI tank beside the indoor unit For Indoor unit service space refer to the section Indoor unit alone Without tank For non HITACHI tank see his own technical documentation NOTE The LCD controller PC ...

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Page 95: ...8 Refrigerant cycle and hydraulic circuit TCGB0075 rev 0 11 2012 95 8 8 Refrigerant cycle and hydraulic circuit Index 8 1 RAS 4 6 H V RNME AF RWH 4 0 6 0 FS V NFE combination 96 ...

Page 96: ... Water pressure port G 3 8 53 Check valve 6 Strainer 18 Refrigerant liquid connection 30 Water flow switch 42 Water inlet thermistor 54 Evaporating heating thermistor 7 Distributor 19 Gas pipe thermistor 31 3 way valve 43 Water strainer 55 Liquid pipe thermistor 8 R410A check joint 1 2 20 Plate heat exchanger R410A R134a 32 Domestic hot water tank 44 Safety valve 56 Indoor unit expansion valve 1st...

Page 97: ...recautions 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 flow adjustment 105 9 2 5 Pressure charts 107 9 3 Domestic Hot Water hydraulic circuit Optional 108 9 3 1 Hydraulic circuit 108 9 3 2 Water piping 110...

Page 98: ... AF 40 Item 4 6 HP Maximum piping length between outdoor unit and indoor unit Lmax Actual piping length 30 m Equivalent piping length 40 m Minimum piping length between outdoor unit and indoor unit Lmin Actual piping length 3 m Maximum height difference between indoor and outdoor unit H Outdoor unit higher than indoor unit 30 m Indoor unit higher than outdoor unit 20 m Refrigerant piping size Pipi...

Page 99: ...t gas liquid connection R410A of indoor unit are located where it is visible in the following images Refrigerant liquid connection Refrigerant gas connection Front view NOTE The refrigerant gas liquid connection R410A of indoor unit is a flare nut connection but after installing the pi ping accessories the connection is done by brazing Refrigerant liquid gas piping connection accessories It is pro...

Page 100: ...al to charge the R410A refrigerant inside the indoor unit Supply power to the indoor unit and switch the DSW1 2 ON of its PCB1 Thereby the indoor unit SV1 and SV2 open to allow the vacuum and refrigerant charge operation inside the indoor unit Very important to remind to switch the DSW1 2 OFF when finishing the whole procedure Refrigerant charge before shipment W0 kg Unit type Unit model W0 kg R41...

Page 101: ...ctor Fan m3 min Height 2 5 m Floor 10 m2 Opening 0 06 m2 Indoor unit RWH 5 0FSVNFE Refrigerant R134a 2 5 kg Countermeasure in the event of possible refrigerant leakage The room must have the following features to prevent suffocation in case a refrigerant leakage occurs 1 Provide a shutterless opening which will allow fresh air to circulate into the room 2 Provide a doorless opening of 0 15 or more...

Page 102: ...be collected from the outdoor unit side Switch the DSW1 2 OFF when finishing the procedure 2nd cycle R134a CAUTION The 2nd cycle R134a connections are factory installed and refrigerant charged so no vacuum or pumping down work is needed 9 1 6 Refrigerant check joints 1st cycle R410A Outdoor unit 2nd cycle R134a Indoor unit B Compressor Front view A C B Heat exchangers Hydraulic circuit Front side ...

Page 103: ...e 1 accessory Field supplied 19 Shut off valve field supplied Accessory 20 Water check valve ATW WCV 01 accessory Indoor unit hydraulic circuit Field installation Space heating Field water circuit Water inlet connection 1 Water outlet connection 1 Additional hydraulic necessary elements The following hydraulic elements are necessary to correctly perform the space heating water circuit 2 shut off v...

Page 104: ...onnection T branch connection RWH 4 0 6 0 FS V NFE Ø25 4 1 Ø25 4 1 Space heating pipes factory supplied Indoor unit is provided with two flexible water pipes space heating pipes for connection between the space heating and the indoor unit to the T branch and to the 3 way valve Item Connection 1035mm 1385mm Ø25 4 1 Space heating outlet pipe Wi thout elbow For the connection between the T branch wat...

Page 105: ...ould be set according to the Space heating Heating Floor Radiators Fan Coils and its co rresponding water outlet temperature The procedure for adjusting the water flow is described below 1 Pressure lost calculation 2 Check the Pump Performance Curves 3 Selection of the Pump Speed 4 Water flow adjustment Procedure 1 Pressure lost calculation The indoor unit is factory supplied with two Water Pressu...

Page 106: ...ding to Pressure Lost of the circuits and the calculated Water Flow The pump speed selector switch is located on the pump s Terminal Box Pump speed selector View from A Speed indications Speed 1 Low Speed 2 Medium Speed 3 High NOTE The Pumps are factory supplied on speed 3 High 4 Water flow adjustment The Water Flow should be adjusted by closing one of the main Shut off Valves field supplied of th...

Page 107: ...Pressure charts RWH 4 0 6 0 FS V NFE RWH 4 0FS V NFE RWH 5 0FS V NFE Static pressure kPa V3 V2 V1 Static pressure kPa V3 V2 V1 Water flow m3 h Water flow m3 h RWH 6 0FS V NFE Static pressure kPa V3 V2 V1 Water flow m3 h NOTE V Pump motor speed V1 Low V2 Medium V3 High ...

Page 108: ...y water valve unit DHWT SWG 01 2 Water check valve ATW WCV 01 Field supplied 3 Recirculation pump 4 Shutoff valve 5 Drain Factory supplied 6 Heating coil 7 Heating coil outlet water pipe accessory 8 Heating coil inlet water pipe accessory 9 DHW outlet water pipe accessory 10 DHW inlet water pipe accessory Water flow Union Nut Heating coil inlet From the indoor unit Main DHW inlet DHW DHW Tank Opti...

Page 109: ...curity water valve DHWT SWG 01 NOTE The discharge pipe should be always open to the atmosphere free of frost and in continuous slope to the down side in case that water leakage exists 1 Shut off valve field supplied one 4 must be connected after the DHW outlet water pipe factory supplied 9 in order to make easier any maintenance work Hydraulic optional elements In case of a recirculation circuit f...

Page 110: ...inlet T branch connection for heating coil outlet Tank connections The domestic hot water connections of the tank are located where it is visible in the following images Water connections Heating coil DHW Connection between indoor unit and tank heating coil inlet connection Connection between indoor unit and tank heating coil outlet connection DHW inlet connection Cold water to the tank DHW outlet...

Page 111: ...d with the indoor unit Heating coil pipes Item Connection 365mm 960mm Ø19 05 3 4 Heating coil inlet pipe For the connection between the 3 way valve water out let and the heating coil inlet Heating coil outlet pipe For the connection between the T branch water inlet and the heating coil outlet DHW pipes Item Connection Ø19 05 3 4 960mm 1045mm DHW inlet pipe For the connection between the DHW inlet ...

Page 112: ...ry to do not add any kind of antifreeze product to the water circuit To avoid deposits of scale on the heating coil surface it is mandatory to ensure a high water quality with low levels of CaCO3 The following is the recommended standard water quality Item DHW space Tendency 1 Water supplied 3 Corrosion Deposits of scales Electrical Conductivity mS m 25 C µS cm 25 C 2 100 2000 Chlorine Ion mg CI I...

Page 113: ...onnections 116 10 2 2 Indoor unit terminal board connections 117 10 3 Printed circuit board PCB 118 10 3 1 Outdoor unit 118 10 3 2 Indoor unit 119 10 4 Setting of DIP switches and RSW switches 121 10 4 1 Outdoor unit 121 10 4 2 Indoor unit 124 10 5 Common wiring 130 10 5 1 Electrical wiring between indoor and outdoor unit of the air to water heat pump system 130 10 5 2 Electrical wiring between DH...

Page 114: ...ws Models situation regarding IEC 61000 3 2 and IEC 61000 3 12 Ssc xx Models Ssc xx KVA Equipment complying with IEC 61000 3 2 professional use RAS 4HRNME AF RAS 5HRNME AF RAS 6HRNME AF RWH 4 0FSVNFE RWH 5 0FSVNFE RWH 6 0FSVNFE Equipment complying with IEC 61000 3 12 RAS 4HVRNME AF RAS 5HVRNME AF RAS 6HVRNME AF RWH 4 0FSNFE RWH 5 0FSNFE RWH 6 0FSNFE 4 Check to ensure that the power supply voltage ...

Page 115: ...ant pipes water pipes plate edges and electrical parts inside the unit If not do the wires will be damaged and at worst a fire will occur In the indoor unit lead the cables to the knockout hole power control and LCD cables through the clamps placed in the upper part of the indoor unit trying to keep the maximum possible distance between the control and LCD cables with the power cables In the outdo...

Page 116: ... 2 1 Outdoor unit terminal board connections RAS 4 6 HVRNME AF RAS 4 6 HRNME AF Earth terminal Transmission wires Power wires Earth terminal Transmission wires Power wires Power supply AC 230 V Transmission wires 5 V Transmission wires 5 V Power supply AC 400 V 1 230V 50Hz 3N 400V 50Hz ...

Page 117: ...a mixing system is required for a second temperature control these two outputs are necessary to control the mixing valve 16 Mixing valve open 17 N Common 18 Water Pump 2 WP2 When there is a second temperature application a secondary pump is the circulating pump for the secondary heating loop 19 Water Pump 3 WP3 When there is a hydraulic separator or buffer tank additional Water pump WP3 is needed ...

Page 118: ...re thermistor THM9 Compressor discharge temperature thermistor CN2 Current transformer CN5A Micro electronic expansion valve CN8 Transmission from outdoor to indoor unit CN14 Transmission between PCB1 and ISPM EFS1 2 Power protection Switch indication DSW1 PCB1 Test run DSW2 Piping length and selection function DSW3 Capacity code DSW4 RSW1 Refrigerant cycle number DSW5 End terminal resistor DSW6 P...

Page 119: ...ht PCN12 3 PCB2 Connector Indications Name Connector Nº Actuator Boiler signal Heater signal PCN1 Boiler signal Heater signal PCN2 DHWT heater signal PCN3 Solar signal PCN4 Transmis sion PCB1 PCB2 communication CN1 2 3 4 A D Input Water inlet Thermistor THMwi CN9 Water sanitary tank thermistor THMDHW CN10 Liquid 410A Thermistor THMl CN11 Gas 410A Thermistor THMg CN12 Water outlet Thermistor THMwo ...

Page 120: ...s Name Connector Nº Power Power supply PCN1 Devices power supply PCN2 Input transformer power supply 230v PCN3A B Output transformer power supply 24v CN10A B Pro tection Device High pressure protection t out PCN5 Trans mission H Link communication CN1 PCB1 PCB2 communication CN2 5 6 9 Inverter communication CN8 External Input Output Pressure sensor discharge R134a CN3 Pressure sensor suction R134a...

Page 121: ... is not affecting The figures show the settings before shipment or after selection caution Before setting dips switches first turn the power source off and then set the position of the dips switches In case of setting the switches without turning the power source off the contents of the setting are invalid DSW1 Test run Function Setting position Setting before shipment Test run for pumping down Te...

Page 122: ...ction selection setting set by PSW External input output selection signals set by PSW caution It is possible to select the cancellation of the outdoor hot start control by pushing both PSW1 PSW3 simul taneously during 3 seconds The cancellation of the outdoor hot start control configuration could damage the compressor if it is usually used In that case the unit warranty will be voided DSW3 Capacit...

Page 123: ... set at ON Function Setting position Setting before shipment DSW6 Power source setting individual operation Function Setting position 4 5 6 HP 230V setting before shipment 400V setting before shipment Jumpers Jumper lead setting JP1 6 Setting before shipment JP1 JP2 JP3 JP4 JP5 JP6 1 0 0 1 1 1 0 Open 1 Short circuit LED s indication LED Indication LED1 Red This LED indicates the transmission statu...

Page 124: ...dicates the dip switches positions No mark indicates pin position is not affected The figures show the settings before shipment or after selection Not used means that the pin must not be changed A malfunction might occur if changed caution Before setting dip switches first turn the power supply OFF and then set the position of dip switches If the swit ches are set without turning the power supply ...

Page 125: ...Never turn all DSW4 dip switch pins ON If this happens the software of the unit will be removed Never activate Heater Forced OFF and Emergency operation heater at the same time Optional functions enabled 8 7 Heater Forced OFF 8 7 Unit and installation pipes antifreeze protection 8 7 Standard ECO water pump operation 8 7 Emergency operation heater boiler 8 7 Outdoor unit refrigerant R410A recovery ...

Page 126: ...this additional setting Factory setting Outdoor unit sensor for circuits 1 and 2 Outdoor unit sensor for circuit 1 Auxiliary sensor for circuit 2 Auxiliary sensor for circuit 1 Outdoor unit sensor for circuit 2 Auxiliary sensor instead of outdoor unit sensor for both circuits Universal sensor enabled Use Two3 boiler heater thermistor ins tead Two water outlet thermistor for water control DSW6 Not ...

Page 127: ...quired RWH 4 0FS V NFE RWH 5 0FS V NFE RWH 6 0FS V NFE DSW3 Not used Factory setting Not change DSW4 Additional setting Factory setting Not change Single phase 1 230V 50Hz Three phase 3N 400V 50Hz 8 7 8 7 DSW5 Power source setting Factory setting Single phase 1 230V 50Hz Three phase 3N 400V 50Hz DSW6 Not used Factory setting Not change ...

Page 128: ...SW7 Unit control configuration Factory setting Single phase 1 230V 50Hz Three phase 3N 400V 50Hz DSW8 Pressure device setting 1 Factory setting Not change DSW9 Pressure device setting 2 Factory setting Not change RSW1 RSW2 Not used RSW3 RSW4 Not used ...

Page 129: ...tion thermo ON OFF LED5 Yellow Operation indicates power supply to the unit LED6 Red Alarm flickering with 1 sec interval LED7 Not used LED8 Yellow H link indication transmission PCB3 Name Color Indication LED1 Green Power supply indication LED2 Not used LED3 Not used LED4 Red Heat pump operation compressor 2 LED5 Yellow Alarm flickering with 1 sec interval LED6 Not used LED7 Not used LED8 Yellow ...

Page 130: ...or field wiring is not used fix rubber bushes to the panel with adhesive CAUTION Be sure to use a dedicated power circuit for the indoor unit Never use a power circuit shared by another appliance Outdoor unit Pay attention to the connection of the operating line Incorrect connection may cause PCB failure All the field wiring and equipment must comply with local and international codes Operating Li...

Page 131: ... AF 23 0 2 x 6 0 mm GND RAS 4HRNME AF 3N 400V 50 Hz 7 0 4 x 2 5 mm GND RAS 5HRNME AF 11 0 4 x 4 0 mm GND RAS 6HRNME AF 13 0 4 x 4 0 mm GND Indoor unit alone Model Power supply Max current A Power supply cables Transmiting cables Actuator cables EN60335 1 EN60335 1 EN60335 1 RWH 4 0FSVNFE 1 230V 50Hz 24 0 2 x 6 0mm2 GND 2 x 0 75mm2 Shielded cable 2 x 0 75mm2 GND RWH 5 0FSVNFE 28 0 RWH 6 0FSVNFE 31 ...

Page 132: ...40 30 RWH 5 0FSNFE 15 0 15 RWH 6 0FSNFE 15 0 15 MC Maximum current CB Circuit breaker ELB Earth leakage breaker Indoor unit with DHW tank Model Indoor Unit Model Operation mode 1 Power supply Applicable vol tage MC A CB A ELB nº poles A mA U max V U min V RWH 4 0 6 0 FSVNFE DHWS 195 260 S 2 0H1E RWH 4 0FSVNFE Standard operation By default 1 230V 50Hz 253 207 24 0 32 2 40 30 RWH 5 0FSVNFE 28 0 32 R...

Page 133: ...as follows LCD connection cable Electric heater connection cable 24 25 14 Rear Ebox Thermistor connection cable 28 29 Factory supplied wire sizes Model Power supply Maximum Current A LCD connection cable size Electric heater connection cable size Thermistor con nection cable size EN60335 1 EN60335 1 EN60335 1 DHWS195S 2 0H1E 1 230V 50Hz 8 7 6 x 0 3 mm 3 x 1 0 mm2 2 x 0 75 mm2 DHWS260S 2 0H1E ...

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Page 135: ...n configuration TCGB0075 rev 0 11 2012 135 11 11 Installation configuration Index 11 1 System configurations 136 11 2 Installation configurations 138 11 2 1 Main configurations 139 11 2 2 Additional combinations 142 ...

Page 136: ...ion and it can be configured and upgraded to meet many application requirements Mono valent system The YUTAKI S80 is sized to provided 100 of the heating requirements on the coldest days of the year Example of Mono valent system NOTE TA Outdoor ambient temperature PH Heating capacity Air to water heat pump Capacity Heat Demand Air to water heat pump Design point PH TA Mono energy system The YUTAKI...

Page 137: ...water heat pump A hydraulic separator of buffer tank has to be used to ensure hydraulic balancing Example of Alternating Bi valent system NOTE TA Outdoor ambient temperature ºC PH Heating capacity Bivalent point can be set through the LCD user s interface Air to water heat pump Capacity Heat Demand Air to water heat pump Boiler Bi valent point PH TA ...

Page 138: ... tion 4 Two space heating only and DHW tank Two space heating applications high low water temperature DHW tank with a room thermostat as an option Additional combinations The next configurations are combinable with the main configurations 1 or 2 space heating with without tank 5 Electric heater complement Two possible space heating applications high low water temperature Electric heater acces sory...

Page 139: ...ssory High temperature 80ºC 1 7 4 6 5 3 2 8 One space heating and DHW Tank Installation example 2 One space heating and DHW Tank Space heating using radiators or fan coils with an optional room thermostat Domestic Hot Water Tank is heated by Heat Pump The LCD is integrated with the DHW Tank Item Description 1 Outdoor unit 2 Indoor unit 3 R134a compressor 4 Water pump 5 3 way valve 6 T branch 7 Shu...

Page 140: ...controller is supplied as accessory NOTE When YUTAKI S80 is working with two space heating applications High Low water temperature it is neces sary to install the 2nd temperature kit accessory ATW 2KT 01 and the following accessories Water temperature sensor for second temperature control ATW WTS 02Y Mixing valve motor ATW MVM 01 Aquastat for heating floor protection ATW AQT 01 Additionally the Au...

Page 141: ...t The LCD is integrated with the DHW Tank NOTE When YUTAKI S80 is working with two space heating applications High Low water temperature it is neces sary to install the 2nd temperature kit accessory ATW 2KT 01 and the following accessories Water temperature sensor for second temperature control ATW WTS 02Y Mixing valve motor ATW MVM 01 Aquastat for heating floor protection ATW AQT 01 Additionally ...

Page 142: ...e electric heater accessory is available WEH 6E Additional water sensor Two3 is also necessary Use the ATW WTS 02Y universal water sensor accessory if needed Item Description 1 Outdoor unit 2 Indoor unit 3 R134a compressor 4 Water pump 5 3 way valve 6 T branch 7 Shut off valves field supplied 8 Domestic hot water tank 9 Security valve DHWT SWG 01 accessory Item Description 10 DHWT heater integrate...

Page 143: ... in Alternating Bi valent system with boiler install 2 water check valves non return at the water inlet of the indoor unit and boiler Use the ATW WCV 01 accessory if needed Item Description 1 Outdoor unit 2 Indoor unit 3 R134a compressor 4 Water pump 5 3 way valve 6 T branch 7 Shut off valves field supplied 8 Domestic hot water tank 9 Security valve DHWT SWG 01 accessory 10 DHWT heater integrated ...

Page 144: ...mpressor 4 Water pump 5 3 way valve 6 T branch 7 Shut off valves field supplied 8 Domestic hot water tank 9 Security valve DHWT SWG 01 accessory 10 DHWT heater integrated with DHWT Item Description 11 LCD controller integrated with DHWT 12 Second temperature kit ATW 2KT 01 accessory 13 Motorized valve field supplied 14 Aquastat ATW AQT 01 accessory 15 Boiler field supplied 16 Water check valve ATW...

Page 145: ...4a compressor 4 Water pump 5 3 way valve 6 T branch 7 Shut off valves field supplied 8 Domestic hot water tank 9 Security valve DHWT SWG 01 accessory 10 DHWT heater integrated with DHWT 11 LCD controller integrated with DHWT Item Description 12 Second temperature kit ATW 2KT 01 accessory 13 Motorized valve field supplied 14 Aquastat ATW AQT 01 accessory 15 Boiler field supplied 16 Water check valv...

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Page 147: ...CGB0075 rev 0 11 2012 147 12 12 Optional functions Index 12 1 Indoor unit 148 12 1 1 Optional functions 148 12 1 2 Optional external output signals by 7 segment display 149 12 2 Outdoor unit 149 12 2 1 Optional functions 149 ...

Page 148: ...n be enabled by the LCD user s interface From dip switch setting Anti freeze control winter operation When YUTAKI S80 is operating in winter if the outlet water temperature is 5ºC or lower and the unit remains in Thermo OFF Operation and water pump OFF the water pump operates to protect the unit and pipes installation from freezing This control is released when the water outlet temperature becomes...

Page 149: ...n Thermo ON CN7b 1 6 12 2 Outdoor unit 12 2 1 Optional functions Outdoor unit has the following signals that are described in the following table These signals are set up through the PCB of the outdoor unit Output signals by 7 segment Ind Output signal Application Port 0 Nº setting application Nº setting 01 Operation signal This signal allows to pick up the machine s operation signal This is very ...

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Page 151: ...13 Troubleshooting TCGB0075 rev 0 11 2012 151 13 Index 13 1 Troubleshooting procedure by alarm code 152 13 1 1 Alarm display 152 13 1 2 Alarm codes 153 13 Troubleshooting ...

Page 152: ...the indoor PCB1 3 RWH 4 6 FS V NFE The 7 segment at the indoor PCB1 will show the alarms from the outdoor unit the hydraulic circuit and the 1st cycle The 7 segment at the indoor PCB3 will show the alarms from the 2nd cycle Oudoor unit Position of the 7 segment at the outdoor PCB RAS 4 6 H V RNME AF The 7 segment at the outdoor PCB will show the alarms from the outdoor unit SEG1 DSW6 DSW1 LED2 SW1...

Page 153: ...HMSWP Loose disconnected broken or short circuited connector 18 18 1st cycle Water outlet 3 thermistor abnormally THMWO3 Loose disconnected broken or short circuited connector 20 20 Outdoor Compressor Top temperature thermistor abnormality Loose disconnected broken or short circuited connector 21 21 1st cycle 2nd ambient thermistor abnormally TH MAMB2 Loose disconnected broken or short circuited c...

Page 154: ...s higher than 3 0 MPa 102 02 h1 2nd cycle Activation of protection control for excessi vely high pressure The high pressure Pd is higher than 2 78 MPa during 10 seconds 103 02 L1 2nd cycle Activation of protection control for excessi vely low pressure The suction pressure Ps is lower than 0 15 MPa during 1 5 minutes 104 02 1 2nd cycle Activation of low pressure control The suction pressure Ps is l...

Page 155: ... P and N of ISPM is insufficient 152 51 2nd cycle Abnormal operation of the current sensor The compressor frequency is maintained at 15 18 Hz after the compressor s start up one of the absolute values of the running current at each phase U U V and V is lower than 1 5 A 153 52 2nd cycle Activation of protection for inverter instanta neous over current The compressor current is higher than the set v...

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Page 158: ...h the standard ISO 14001 of JACO Japan for its Environmental Management accordance with the standard Hitachi Air Conditioning Products Europe S A is certified with ISO 9001 of AENOR Spain for its Quality Management accordance with the standard ISO 14001 of AENOR Spain for its Environmental Management systems accordance with the standard Hitachi certifies that our products have met EU consumer safe...

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