Hitachi RWM-2R1E Installation & Operation Manual
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Hitachi RWM-2R1E Installation & Operation Manual

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INSTALLATION &
OPERATION
MANUAL
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YUTAKI SERIES
AND YUTAKI CASCADE CONTROLLER
MODELS
RWM-(2-3)R1E
RWM-(4-10)N1E
RWD-(2-3)RW1E-220S(-K)
RWD-(4-6)NW1E-220S(-K)
ATW-YCC-03
EN
INSTALLATION AND OPERATION MANUAL
ES
MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO
DE
INSTALLATIONS- UND BETRIEBSHANDBUCH
FR
MANUEL D'INSTALLATION ET DE FONCTIONNEMENT
IT
MANUALE DI INSTALLAZIONE E D'USO
PMML0575 rev.1 - 09/2021
PT
MANUAL DE INSTALAÇÃO E FUNCIONAMENTO
DA
MONTERINGS- OG DRIFTSVEJLEDNING
NL
INSTALLATIE- EN BEDIENINGSHANDLEIDING
SV
INSTALLATION- OCH DRIFTHANDBOK
EL
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ ΚΑΙ ΛΕΙΤΟΥΡΓΙΑΣ
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  • Page 1 – INSTALLATION & OPERATION MANUAL – YUTAKI SERIES AND YUTAKI CASCADE CONTROLLER MODELS RWM-(2-3)R1E RWM-(4-10)N1E RWD-(2-3)RW1E-220S(-K) RWD-(4-6)NW1E-220S(-K) ATW-YCC-03 INSTALLATION AND OPERATION MANUAL MANUAL DE INSTALAÇÃO E FUNCIONAMENTO MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO MONTERINGS- OG DRIFTSVEJLEDNING INSTALLATIONS- UND BETRIEBSHANDBUCH INSTALLATIE- EN BEDIENINGSHANDLEIDING MANUEL D’INSTALLATION ET DE FONCTIONNEMENT INSTALLATION- OCH DRIFTHANDBOK MANUALE DI INSTALLAZIONE E D’USO...
  • Page 3 Specifikationerna i den här handboken kan ändras utan föregående meddelande för att Hitachi ska kunna leverera de senaste innovationerna till kunderna. Vi på Hitachi gör allt vi kan för att se till att alla specifikationer stämmer, men vi har ingen kontroll över tryckfel och kan därför inte hållas ansvariga för den typen av fel.
  • Page 4 C A U T I O N This product shall not be mixed with general house waste at the end of its life and it shall be retired according to the appropriated local or national regulations in a environmentally correct way. Due to the refrigerant, oil and other components contained in heat pump, its dismantling must be done by a professional installer according to the applicable regulations.
  • Page 5 Important note: Please, check, according to the model name, which is your heat pump system, how it is abbreviated and referred to in this instruction manual. MODELS CODIFICATION This Installation and Operation Manual is related to YUTAKI Units. Nota importante: compruebe, de acuerdo con el nombre del modelo, el tipo de bomba CODIFICACIÓN DE de calor, su abreviatura y su referencia en el presente manual de instrucciones.

  • Page 7: Table Of Contents

    GENERAL INDEX General Index 1 GENERAL INFORMATION ......................1 General information ..............................1 1.1.1 General notes ................................... 1 1.1.2 Introduction ..................................1 1.1.2.1 Overview of YUTAKI system ..........................1 1.1.2.2 Summary of operations ............................2 Applied symbols ..............................3 Product guide ................................. 4 1.3.1 ...
  • Page 8 GENERAL INDEX R410A Hydraulic working range ........................... 16 4.3.1 Hydraulic data ................................16 R32 Hydraulic working range ..........................17 4.4.1 Hydraulic data ................................17 4.4.2 Pump performance curves ............................. 18 5 REFRIGERANT AND WATER PIPING ..................21 R32 Refrigerant circuit............................21 5.1.1 General notes R32 refrigerant ............................
  • Page 9 GENERAL INDEX 7.6.1  Next schedule indication ..............................66 Mode view ................................67 Room 1/2 view..............................67 Fan coils 1/2 view ..............................68 7.10 Circuit 1/2 view ..............................68 7.11 DHW view ................................69 7.12 SWP view ................................69 7.13 Menu ..................................70 7.13.1 OPERATION INFORMATION............................
  • Page 10 GENERAL INDEX Home view................................118 8.6.1  Next schedule indication ...............................118 Mode view ................................119 Room 1/2 view..............................119 Fan coils 1/2 view ............................... 120 8.10 Circuit 1/2 view ..............................120 8.11 DHW view ................................121 8.12 SWP view ................................121 8.13 Menu .................................. 122 8.13.1 Operation information ..............................122 8.13.2 ...

  • Page 11: General Information

    This document may therefore have been subject to amendments during the life of the product. Hitachi makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled by Hitachi and are not its responsibility.

  • Page 12: Summary Of Operations

    This is made possible by a domestic hot water tank. In case of YUTAKI S COMBI, the domestic hot water tank is built in the indoor unit. For YUTAKI S, the Hitachi accessory “DHWT-(200/300)S-3.0H2E” can be used for the production of DHW.

  • Page 13: Applied Symbols

    GENERAL INFORMATION 1.2 APPLIED SYMBOLS During normal heat pump system design work or unit installation, greater attention must be paid in certain situations requiring particular care in order to avoid damage the unit, the installation or the building or property. Situations endangering the safety of those in the surrounding area or to the unit itself are clearly indicated in this manual.

  • Page 14: Product Guide

    GENERAL INFORMATION 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, 4, 5, 6, 8, 10. For water combination Heat pump V: Single phase unit (1~ 230V 50Hz) —: Three phase unit (3N~ 400V 50Hz)

  • Page 15: Complementary System

    GENERAL INFORMATION 1.3.1.3 Complementary system  YUTAKI CASCADE CONTROLLER Air to water Position-separating hyphen (fixed) YUTAKI CASCADE CONTROLLER Position-separating hyphen (fixed) Language pack 1.3.2 Product list 1.3.2.1 Split system - R32 Outdoor unit 1~ 230V 50Hz RAS-2WHVRP1 RAS-2.5WHVRP1 RAS-3WHVRP1 1.3.2.2 Split system - R410A Outdoor unit 1~ 230V 50Hz 3N~ 400V 50Hz RAS-4WHVNPE...

  • Page 16: Split System - Indoor Unit

    GENERAL INFORMATION 1.3.2.3 Split system - Indoor unit  YUTAKI S ( ) ( ) ( ) ( ) 1~ 230V 50Hz 3N~ 400V 50Hz 1~ 230V 50Hz 3N~ 400V 50Hz RWM-2.0R1E RWM-2.0R1E RWM-2.5R1E RWM-2.5R1E RWM-3.0R1E RWM-3.0R1E RWM-4.0N1E RWM-4.0N1E RWM-5.0N1E RWM-5.0N1E RWM-6.0N1E RWM-6.0N1E...

  • Page 17: Complementary System

    GENERAL INFORMATION Model for UK market ( ) ( ) 1~ 230V 50Hz 3N~ 400V 50Hz RWD-2.0RW1E-220S-K RWD-2.0RW1E-220S-K RWD-2.5RW1E-220S-K RWD-2.5RW1E-220S-K RWD-3.0RW1E-220S-K RWD-3.0RW1E-220S-K RWD-4.0NW1E-220S-K RWD-4.0NW1E-220S-K RWD-5.0NW1E-220S-K RWD-5.0NW1E-220S-K RWD-6.0NW1E-220S-K RWD-6.0NW1E-220S-K 1.3.2.4 Complementary system  YUTAKI CASCADE CONTROLLER ATW-YCC-03 PMML0575 rev.1 - 09/2021...

  • Page 18: General Safety Notes

    If this is not the case, contact your distributor. • Hitachi pursues a policy of continuous improvement in product design and performance. The right is therefore reserved to vary specifications without notice. •...

  • Page 19: 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 “6 Electrical and control settings”...

  • Page 20: Split System - R410A Outdoor Unit

    ELECTRICAL DATA 3.2 SPLIT SYSTEM - R410A OUTDOOR UNIT RAS-(4-10)WH(V)NP(E) in combination with YUTAKI S, YUTAKI S COMBI Compressor and fan motors Applicable voltage Cooling Heating Max. IPT Model Power supply (kW) U max. U min. (KW) (KW) RAS-4WHVNPE 2.11 2.12 6.93 RAS-5WHVNPE...

  • Page 21: Split System - Indoor Unit

    ELECTRICAL DATA 3.4 SPLIT SYSTEM - INDOOR UNIT 3.4.1 YUTAKI S RWM-(2.0-10.0)(N/R)1E Applicable voltage Max. Model Power supply Operation mode U max. U min. (kW) (kW) Without electric heater 0.06 0.63 0.06 With electric heater 13.7 3.06 13.7 3.06 1~ 230V 50Hz With DHW tank heater 13.7 3.06...

  • Page 22: Yutaki S Combi

    ELECTRICAL DATA 3.4.2 YUTAKI S COMBI RWD-(2.0-6.0)(N/R)W1E-220S(-K) Applicable voltage Max. Model Power supply Operation mode U max. U min. (kW) (kW) Without electric heater 0.06 0.63 0.06 With electric heater 13.7 3.06 13.7 3.06 RWD-2.0RW1E- 1~ 230V 50Hz 220S(-K) With DHW tank heater 12.6 2.81 12.6...

  • Page 23: Working Range

    WORKING RANGE 4 WORKING RANGE 4.1 POWER SUPPLY WORKING RANGE  Nominal power supply • Single phase: 1~ 230V 50Hz • Three phase: 3N~ 400V 50Hz  Operating voltage Between 90 and 110% of the nominal voltage.  Voltage imbalance for nominal power supply 3N~ 400V 50Hz Up to 3% of each phase, measured at the main terminal of the outdoor unit.

  • Page 24: Dhw

    WORKING RANGE (4.0-10.0)HP Water outlet temperature (ºC)  Continuous working range.    Operation not possible.  Heat Pump operation possible.    Starting heat pump + Back-up heater.   Starting Heat Pump.  Starting only Back-up Heater operation. ...

  • Page 25: Swimming Pool Heating

    WORKING RANGE (4.0-10.0)HP Water outlet temperature (ºC)  Continuous working range.  Heat Pump operation possible.   Starting only Back-up Heater operation.   Maximum setting temperature.  Minimum setting temperature.    Ambient temperature (ºC(DB)) N O T E •...

  • Page 26: Space Cooling (Necessary Cooling Kit)

    WORKING RANGE 4.2.4 Space cooling (Necessary cooling kit) Water outlet temperature (ºC) Refreshing floor  Continuous working range.  working area  Maximum setting temperature. Fan coil working  area   Minimum setting temperature. Ambient temperature (ºC(DB)) 4.3 R410A HYDRAULIC WORKING RANGE 4.3.1 Hydraulic data ...

  • Page 27: R32 Hydraulic Working Range

    WORKING RANGE 4.4 R32 HYDRAULIC WORKING RANGE 4.4.1 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 28: Pump Performance Curves

    WORKING RANGE 4.4.2 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 29 WORKING RANGE 5.0 HP 6.0 HP Water flow (m Water flow (m 8.0 HP 10.0 HP Water flow (m Water flow (m PMML0575 rev.1 - 09/2021...
  • Page 30 WORKING RANGE  YUTAKI S COMBI 2.0 HP 2.5 HP Water flow (m Water flow (m 3.0 HP 4.0 HP Water flow (m Water flow (m 5.0 HP 6.0 HP Water flow (m Water flow (m PMML0575 rev.1 - 09/2021...

  • Page 31: Refrigerant And Water Piping

    REFRIGERANT AND WATER PIPING 5 REFRIGERANT AND WATER PIPING 5.1 R32 REFRIGERANT CIRCUIT 5.1.1 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.
  • Page 32 REFRIGERANT AND WATER PIPING  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 33: Refrigerant Charge

    REFRIGERANT AND WATER PIPING 5.1.3 Refrigerant charge 5.1.3.1 Refrigerant charge amount 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. 5.1.3.2 Refrigerant charge before shipment (W (kg)) Outdoor unit model (kg)
  • Page 34 REFRIGERANT AND WATER PIPING  Refrigerant piping size Piping connection size of outdoor unit & indoor unit Indoor unit Pipe size Pipe size Model Model Gas pipe Liquid pipe Gas pipe Liquid pipe (4-6) HP Ø 15.88 (5/8”) Ø 9.52 (3/8”) (4.0-6.0) HP Ø...

  • Page 35: Precautions In The Event Of Gas Refrigerant Leaks

    REFRIGERANT AND WATER PIPING 5.2.2 Precautions in the event of gas refrigerant leaks The installers and those responsible for drafting the specifications are obliged to comply with local safety codes and regulations in the case of refrigerant leakage. C A U T I O N •...
  • Page 36 REFRIGERANT AND WATER PIPING  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 size to the floor area.

  • Page 37: Water Piping

    REFRIGERANT AND WATER PIPING 5.3 WATER PIPING 5.3.1 Water piping length Consider the following guidelines when designing the water circuit. Item YUTAKI S 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 10 m 5.3.2 Water piping size...

  • Page 38: Water Quality

    REFRIGERANT AND WATER PIPING 5.3.3 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 39: Electrical And Control Settings

    ELECTRICAL AND CONTROL SETTINGS 6 ELECTRICAL AND CONTROL SETTINGS 6.1 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 40 ELECTRICAL AND CONTROL SETTINGS N O T E The data corresponding to DHW tank heater is calculated in combination with the domestic hot water tank accessory “DHWT-(200/300)S-3.0H2E”. YUTAKI S COMBI Model Power supply Operation mode (Ω) Without electric heaters With electric heater RWD-(2.0-3.0)RW1E- 1~ 230V 50Hz 220S(-K)

  • Page 41: Electrical Connection

    ELECTRICAL AND CONTROL SETTINGS 6.2 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. If it is necessary, contact with your local authority in regards to standards, rules, regulations, etc.
  • Page 42 ELECTRICAL AND CONTROL SETTINGS  Split system - Indoor unit YUTAKI S Power supply Transmitting Actuator Max. cables cables cables Model Power supply Operation mode current EN60335-1 EN60335-1 EN60335-1 Without electric heaters 0.63 2 x 0.75 mm² + GND With electric heater 13.7 2 x 2.5 mm²...
  • Page 43 ELECTRICAL AND CONTROL SETTINGS YUTAKI S COMBI Power supply Transmitting Actuator Max. cables cables cables Model Power supply Operation mode current EN60335-1 EN60335-1 EN60335-1 Without electric heaters 0.63 2 x 0.75 mm² + GND With electric heater 13.7 2 x 2.5 mm² + GND RWD-(2.5-3.0)RW1E- 1~230V 50Hz 220S(-K)

  • Page 44: Minimum Requirements Of The Protection Devices

    ELECTRICAL AND CONTROL SETTINGS 6.2.2 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). • If the installation is already equipped with an Earth Leakage Breaker (ELB), ensure that its rated current is large enough to hold the current of the units (outdoor and indoor unit).
  • Page 45 ELECTRICAL AND CONTROL SETTINGS  Split system - Indoor unit YUTAKI S Applicable voltage Model Power supply Operation mode U max. U min. (nº of poles/A/mA) Without electric heaters With electric heater RWM-(2.0-3.0)R1E 1~ 230V 50Hz 2/40/30 With DHW tank heater With electric and DHW tank heaters Without electric heaters With electric heater...

  • Page 46: Terminal Board Connections

    ELECTRICAL AND CONTROL SETTINGS 6.3 TERMINAL BOARD CONNECTIONS 6.3.1 Table board 1  Main power supply The main power supply connection is wired to the Terminal board (TB1) as follows: YUTAKI (S / S COMBI) Operating Line Outdoor unit Outdoor unit Operating Line (Twisted shielded pair cable or RAS-WHNP(1)E...
  • Page 47 ELECTRICAL AND CONTROL SETTINGS YUTAKI S Input terminals (Default input functions)  Room thermostat communication cables There are two different room thermostat types as accessory Optional wireless intelligent room thermostat (TB2) ATW-RTU Only for wireless room thermostat accessory: the receiver is connected to the polarity-free terminals1 and 2. The Wireless room thermostat and the Intelligent receiver are already configured to communicate with each other.
  • Page 48 ELECTRICAL AND CONTROL SETTINGS  Earth Earth  Optional wireless ON/OFF room thermostat ATW-RTU-04 The heat pump system has been designed to allow the connection of a remote ON/OFF thermostat to effectively control the home temperature. Depending on the room temperature, the thermostat will turn the system to ON or OFF. a.
  • Page 49 ELECTRICAL AND CONTROL SETTINGS  ECO (Default for input 2) When enabled at Unit controller, both for circuit 1 and circuit 2, also for heating and cooling, this input switches the indoor unit into an ECO mode by adjusting its settings only when input is closed. The input can come from a push button, a thermostat or any other external device with that purpose.
  • Page 50 ELECTRICAL AND CONTROL SETTINGS  Power Meter (Default for input 7) This function is used to monitor real consumption of the system by means an external power meter device connected at this input. The calculation method is done by measuring real consumption of the whole installation with one power meter device or 2 separate power meter (one for indoor unit and another one for outdoor unit.
  • Page 51 DHWT (EH C A U T I O N When using a DHW tank other than those from Hitachi, the maximum connectable heater load is 3 kW (connected to TB2 terminals 30-31).  3 Way valve for DHW tank output YUTAKI units can be used to heat DHW.
  • Page 52 ELECTRICAL AND CONTROL SETTINGS  Auxiliary boiler or heater (Default for Output 3) The auxiliary boiler or heater can be used when the heat pump cannot achieve the require temperature by itself. Free contact Auxiliary Heat  Solar (Default for output 4) This output is used when solar mode is enabled (from Unit controller) and the temperature in the solar panel rises above the water temperature in the domestic hot water tank (DHWT).
  • Page 53 ELECTRICAL AND CONTROL SETTINGS YUTAKI S COMBI Input terminals (Default input functions)  Room thermostat communication cables There are two different room thermostat types as accessory Optional wireless intelligent room thermostat (TB2) ATW-RTU Only for wireless room thermostat accessory: the receiver is connected to the polarity-free terminals1 and 2. The Wireless room thermostat and the Intelligent receiver are already configured to communicate with each other.
  • Page 54 ELECTRICAL AND CONTROL SETTINGS  Optional wireless ON/OFF room thermostat ATW-RTU-04 The heat pump system has been designed to allow the connection of a remote ON/OFF thermostat to effectively control the home temperature. Depending on the room temperature, the thermostat will turn the system to ON or OFF. a.
  • Page 55 ELECTRICAL AND CONTROL SETTINGS  ECO (Default for input 2) When enabled at Unit controller, both for circuit 1 and circuit 2, also for heating and cooling, this input switches the indoor unit into an ECO mode by adjusting its settings only when input is closed. The input can come from a push button, a thermostat or any other external device with that purpose.
  • Page 56 ELECTRICAL AND CONTROL SETTINGS  Power Meter (Default for input 7) This function is used to monitor real consumption of the system by means an external power meter device connected at this input. The calculation method is done by measuring real consumption of the whole installation with one power meter device or 2 separate power meter (one for indoor unit and another one for outdoor unit.
  • Page 57 Heater DHWT (EH C A U T I O N When using a DHW tank other than those from Hitachi, the maximum connectable heater load is 3 kW (connected to TB2 terminals 30-31).  Output 9 Output terminals (Optional output functions) ...
  • Page 58 ELECTRICAL AND CONTROL SETTINGS  Auxiliary boiler or heater (Default for Output 3) The auxiliary boiler or heater can be used when the heat pump cannot achieve the require temperature by itself. Free contact Auxiliary Heat  Solar (Default for output 4) This output is used when solar mode is enabled (from Unit controller) and the temperature in the solar panel rises above the water temperature in the domestic hot water tank (DHWT).

  • Page 59: Unit Controller

    UNIT CONTROLLER 7 UNIT CONTROLLER The new unit controller for YUTAKI series (PC-ARFH2E) is an user-friendly remote control which ensures a strong and safe communication through H-LINK The following information applies in the case of PC-ARFH2E software of version H-0122 and later used in combination with PCB indoor unit software of version H-0114 and later.

  • Page 60: Description Of The Icons

    UNIT CONTROLLER 7.2 DESCRIPTION OF THE ICONS Icon Name Explanation Circuit I or II is in Demand-OFF Circuit I or II is on Thermo-OFF Status for circuit 1, 2, DHW and swimming Circuit I or II is working between 0 < X ≤ 33% of the desired water outlet temperature pool.
  • Page 61 UNIT CONTROLLER Icon Name Explanation Heater step Indicates which of the 3 possible heater steps is applied on space heating DHW Heater Informs about DHW Heater operation. (If it is enabled) Solar Combination with solar energy Compressor enabled (For YUTAKI S, S COMBI) Compressor Compressors enabled.

  • Page 62: Unit Controller Contents

    UNIT CONTROLLER 7.3 UNIT CONTROLLER CONTENTS Menu Contents Menu Contents Level 1 Level 2 Level 3 Level 4 Level 5 Level 1 Level 2 Level 3 Level 4 Level 5 Type Operation Information Until next action Live view Specific time Recent Status Register Forever General...
  • Page 63 UNIT CONTROLLER  Installer mode Menu Contents Level 1 Level 2 Level 3 Level 4 Level 5 Icon means that this menu is available only for installer, Water Pump Configuration a special user with higher access privileges to configure the Outdoor average Timer system.

  • Page 64: Controller Configuration

    UNIT CONTROLLER 7.4 CONTROLLER CONFIGURATION  • Select No when the device acts as Room Thermostat only. It does not control the unit. • Press OK button.  • Select the desired language using the arrow keys. • Press OK button. ...
  • Page 65 UNIT CONTROLLER   • Select Yes if Domestic Hot Water tank is installed. • Select the bivalent point for boiler or electric backup heater (from -20 ºC to 20 ºC). • Press OK button. • Press OK button.  ...

  • Page 66: Timer Assitant For Room Thermostat

    UNIT CONTROLLER 7.4.1 Timer Assitant for Room Thermostat In case that the device is selected as a room thermostat of a zone, a timer assitant is displayed after the initial wizard.  • Select Yes to launch the timer assistant for Room Thermostat 1. •...

  • Page 67: Examples Of Possible Configurations

    UNIT CONTROLLER 7.4.2 Examples of possible configurations N O T E • Other installation configurations are possible. These are examples only for illustration purposes. • It is recommended to set firstly the Main device so as the ease the configuration of the Sub devices. ...
  • Page 68 UNIT CONTROLLER  Example 2 1- Move Unit controller to the living room (use as Unit controller + Room Thermostat) 2- Main unit controller moved to living room Zone 1 3- Sub Unit controller as a room thermostat for Zone 2 Bedroom Zone 2 Indoor unit Living room Zone 1...
  • Page 69 UNIT CONTROLLER  Example 3 1- Move Unit controller to the living room (use as Unit controller + Room Thermostat) 2- Wired unit controller as a Room Thermostat for Zone 1 3- Wired room sensor for Zone 2 Bedroom Zone 2 Indoor unit Living room Zone 1 Outdoor unit...
  • Page 70 UNIT CONTROLLER  Example 4 1- PC-ARFH2E attached into the unit and used as unit controller and room thermostat for both zones. 2- Wired room sensor for Zone 1 3- Wired room sensor for Zone 2 Bedroom Zone 2 Indoor unit Living room Zone 1 Order FIRST...
  • Page 71 UNIT CONTROLLER  Example 5 1- Main unit controller as unit configuration 2- Wireless intelligent thermostat for zone 1 (ATW-RTU-07) (Receiver + Room thermostat) 3- Wireless intelligent thermostat for zone 2 (ATW-RTU-06) (Only Room thermostat) Bedroom Zone 2 Indoor unit Living room Zone 1 Order FIRST...
  • Page 72 UNIT CONTROLLER  Mixed configurations (Wireless + Wired) 1- Move Unit controller to the living room (use as Unit controller + Room Thermostat) 2- Main unit controller moved to living room Zone 3- Wireless intelligent thermostat for zone 2 (ATW-RTU-07) (Receiver + Room thermostat) Bedroom Zone 2 Indoor unit Living room Zone 1...

  • Page 73: Main View

    UNIT CONTROLLER 7.5 MAIN VIEW Main view of the device is composed by a bottom tab widget to move around the different views: • Home • Mode • Room 1 (if space is small it shows R1) • Room 2 (if space is small it shows R2) •...

  • Page 74: Quick Actions Function

    UNIT CONTROLLER 7.5.1 Quick actions function The following quick actions are shown when pressing the OK button at the selected zone in comprehensive view or room thermostat view:  Room 1/2 • Timer • • Holiday (If Zone is enabled) •...
  • Page 75 UNIT CONTROLLER  Domestic Hot Water Tank (DHW) • Timer • Boost (If DHW is ON and Boost is availbable. It can also be cancelled from quick actions). • Holiday (If Zone is enabled) • Status  Swimming Pool (SWP) •...

  • Page 76: Home View

    UNIT CONTROLLER 7.6 HOME VIEW Home view shows on the middle the date and time On the left side it shows: • Inside temperature (home icon): If LCD works as Room 1, it took it from the controller sensor or auxiliary sensor If LCD works as Room 2, it took it from the controller sensor or auxiliary sensor If LCD works as Room 1+2, it took it from the controller sensor or auxiliary sensor, or the average of the ones used per each zones.

  • Page 77: Mode View

    UNIT CONTROLLER 7.7 MODE VIEW • Mode view shows the selected mode. • In case of being a heating and cooling unit, it lets also to change the mode by using the top/bottom arrows, and it shows the mode spinner on the left side. •...

  • Page 78: Fan Coils 1/2 View

    UNIT CONTROLLER 7.9 FAN COILS 1/2 VIEW Room 1 or 2 could control Fan Coils. Once configured to control them on the menu, the bottom bar includes the option to manage those fan coils: • Fan speeds: Low, Medium, High and Auto •...

  • Page 79: Dhw View

    UNIT CONTROLLER 7.11 DHW VIEW DHW view displays: • Water setting feedback • When editing it shows the setting temperature • On right side it has zone notifications for: Next timer action Boost, throughput, operating in comfort and timer icons •...

  • Page 80: Menu

    UNIT CONTROLLER 7.13 MENU 7.13.1 OPERATION INFORMATION In operation information menu it is possible to find the most important setting parameters of the system besides the information of the operation conditions. Summary of system status information: • Refrigerant Cycle Detailed information about: •...
  • Page 81 UNIT CONTROLLER 3 / 4 Detailed information about Boiler combination: Detailed information about Electrical • Operation (Demand ON/OFF) Heater: • Current temperature • Operation (Demand ON/OFF) • Setting temperature • Current temperature • Setting temperature • Load Factor • Step Detailed information about Solar combination: •...

  • Page 82: Live View

    UNIT CONTROLLER 7.13.1.1 Live view Live view is a summary of system status information shown on operation information. It has the following screens:  Refrigerant Cycle Considerations: • Arrows move in anti-clock direction in Heating mode. When Cooling arrows move in clock direction. •...
  • Page 83 UNIT CONTROLLER  Circuit 1 Considerations: • When demand on, inlet pipe is in orange, outlet in blue. • When cooling, inlet pipe is in blue, outlet in orange. If thermo off, it is shown in gray. • shows value of T in case there is buffer tank and T sensor is used.
  • Page 84 UNIT CONTROLLER  Hot Water Tank Considerations: • When Operation status is DHW ON: inlet pipe has orange color inside and arrows moving. Outlet pipe is blue with arrows too. • When not working on DHW ON pipes are shown in light grey. •...
  • Page 85 UNIT CONTROLLER  Room icons for synoptic view Circuit 1 and 2 can be displayed with the following icons Icon Name Fan Coils Radiant floor Radiators 7.13.1.2 Recent Status Register Recent Status Register is an historical data that displays the main variables during the last hours. Considerations: •...

  • Page 86: Energy Data

    UNIT CONTROLLER 7.13.2 Energy data In energy data menu it is possible to check the input power or capacity for space heating / cooling, DHW, SWP or total input power / capacity. In case no external pulse power meter is used, YUTAKI unit performs an estimation of the consumption taking into consideration, compressor, tank heaters, space heating heaters, compressor crankase heater, WP1 and electronics.
  • Page 87 UNIT CONTROLLER • Pressing OK the chart view changes for a table view of the data: • By pressing right/left, it can be changed between zones: Total Space Heating Space Cooling Swimming Pool • By pressing up/down, the different periods are shown. •...

  • Page 88: Timer And Schedule Configuration

    UNIT CONTROLLER 7.13.3 Timer and schedule configuration N O T E Timer settings are only valid if the corresponding zone is in ON state at the time of execution of the respective timer program. The LCD controller must be set to the correct date and time before using the timer function. Select the desired area to apply the timer function or delete all timers configuration: 1 / 2 Heating/Cooling (Air): To set the...
  • Page 89 UNIT CONTROLLER 7.13.3.1 Setting of timer for Room Thermostats Setting of temperature or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings. Manual operation of the unit controller has priority over schedule settings. Timer configuration: New screen appears to configure a schedule timer.
  • Page 90 UNIT CONTROLLER  Setting with Timer assistant It is possible to set the timer for Room thermostats with a timer assistant. When launching the timer assistant the current timer will be deleted. Timer assistant asks if user stays at home during weekend and weekdays •...
  • Page 91 UNIT CONTROLLER 7.13.3.2 Setting of timer for Circuit 1/2 To change the operation mode (ECO or Comfort) or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings. Manual operation of the unit controller has priority over schedule settings. Timer configuration: New screen appears to configure a schedule timer.
  • Page 92 UNIT CONTROLLER 7.13.3.3 Setting of timer for Hot water tank or Swimming Pool Setting the temperature or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings. Manual operation of the unit controller has priority over schedule settings. Timer configuration: New screen appears to Timer status:...
  • Page 93 UNIT CONTROLLER 7.13.3.4 Override Configuration When a different configuration from the defined by the timer of a zone is done, it is possible to override the timer configuration during a specific time. Until next action: derogation remains until next action of the timer. Specific Time: derogation status remains for the specified minutes.

  • Page 94: System Configuration

    UNIT CONTROLLER 7.13.4 System configuration In system configuration menu it is possible to configure all the system settings. Room thermostats configuration: (Screen visible only for room thermostats) • Setting temperature range (air) 1 / 3 • Air Eco Offset • Thermostat configuration •...

  • Page 95: Room Thermostats Configuration

    UNIT CONTROLLER 7.13.4.1 Room thermostats configuration Maximum / Minimum temperature for heating and cooling: Configure for Circuit 1/2: Thermostat configuration: • Heating maximum temperature Configure the wired or wireless room • Heating minimum temperature thermostats: • Cooling maximum temperature • Thermostat 1: None, wired or wireless •...

  • Page 96: Water Settings Configuration

    UNIT CONTROLLER 7.13.4.2 Water settings configuration This menu is only visible for a room thermostat if the controller is not controlling the unit. Select the desired area to apply the water settings configuration:  Space Heating or Space Cooling water settings Δθ...

  • Page 97: Space Heating / Space Cooling Configuration

    UNIT CONTROLLER 7.13.4.3 Space Heating / Space Cooling configuration Control the temperature for Space Heating or Space Cooling by configuring the following parameters. Water calculation mode: Selection of the water set point for Circuit 1 or Circuit 2 (Space Heating or Space Cooling).
  • Page 98 UNIT CONTROLLER  Water calculation mode Deactivated The “Deactivated” option sets the circuit as disabled. Points Points is the most versatile calculation type. Set 4 points and one vertex point, to create a line representing the function that the air to water heat pump will use to give the temperature setting according to the current ambient temperature.

  • Page 99: Hot Water Tank Configuration

    UNIT CONTROLLER 7.13.4.4 Hot Water Tank configuration Setting temperature: Status of Hot Water Tank: Setting for domestic hot water • Deactivated temperature selected by the user. The maximum value of this setting depends • Enabled (by default for YUTAKI S COMBI). on the Maximum setting temperature set by the installer.
  • Page 100 UNIT CONTROLLER DHW Heater: Only available when DHW heater is activated (DSW4 pin 3 ON). • Waiting time: Enable or disable waiting time for DHW heater. • Electrical Heater waiting time: To select the delay time since the moment HP has started in order to start the electric heater.

  • Page 101: Swimming Pool Configuration

    UNIT CONTROLLER 7.13.4.5 Swimming Pool configuration Status: Enable or disable swimming pool. Set input 3, output 1 and sensor 2. (See section “7.13.4.10 Inputs, Outputs and Sensors configuration”) Setting temperature: Adjustment of the swimming pool water temperature setting. • Range: 24~33 ºC Offset temperature: The setting temperature is increased by the indicated parameter.

  • Page 102: Complementary Heating Configuration

    UNIT CONTROLLER 7.13.4.6 Complementary Heating configuration Heating Source: • HP Only • HP + Heater Solar combination: • HP + Boiler • HP + Heater + Boiler (Only for The solar combination will enable you to heat YUTAKI S and YUTAKI S COMBI) up your domestic water by means of the sun whenever the sun is available.
  • Page 103 UNIT CONTROLLER  Solar combination - Total control DHW maximum time: • Maximum time YUTAKI allows to heat tank by ΔT connection: means Solar. At the end of this time Solar pump is stopped regardless temperature conditions at • Allows to specify a difference temperature between tank and Panel Solar Panel.

  • Page 104: Heat Pump Configuration

    UNIT CONTROLLER 7.13.4.7 Heat Pump configuration Night shift: Reduces compressor load in order to reduce environmental noise, preferably at night. See detailed information in the next page. 1 / 2 Water pump configuration: Outdoor average temperature: Configure the water pump of the heat pump.
  • Page 105 • Standard: WP2 is connected after WP3 by means an hydraulic separator or directly by means Hitachi mixing kit Pumps during DHW: accessory. Whenever WP2 is switched This option allows to stop Water Pumps during ON, WP3 is also switched ON in order to DHW operation.

  • Page 106: Fan Coils

    UNIT CONTROLLER 7.13.4.8 Fan coils Controlled fan zones: Fan coil usage assignation in function of Mode and Room: • Deactivated • Heating • Cooling • Heating & Cooling Delay ON time: Delay time to start Fan operation for Fan 1 or Fan 2 only in heating operation.

  • Page 107: Optional Functions Configuration

    UNIT CONTROLLER 7.13.4.9 Optional functions configuration This menu allows to configure the optional functions for system, space heating or space cooling, DHW and Emergency operation. Energy configuration: Setup of power consumption readings. See detailed information below. 1 / 2 Heating Auto On/Off: Hydraulic separator: To stop automatically stop heating operation when Enable or disable a Hydraulic separator...
  • Page 108 UNIT CONTROLLER  Energy configuration Input calculation: Enable or disable energy configuration options. Power meter 1 or 2: • The power meter does a real measuring of the power consumption. • If the power meter is enabled, it is possible Capacity configuration: to see the information collected through the Operation information - Energy data menu.
  • Page 109 UNIT CONTROLLER  Heating Auto On / Off Switch-Off Temperature: • Switch Off temperature: System is Status: stopped in case that the outdoor temperature is higher than the Switch- • Enable or disable heating auto on/off function. OFF temperature. • Switch Off temperature: System is stopped in case that the outdoor temperature is Switch-On Differential:...
  • Page 110 UNIT CONTROLLER  Hot water tank optional functions Circuit Pump: By using this output, user can heat all the water inside DHW piping system. Output must be configured at the I/O and sensors menu. (see section “7.13.4.10 Inputs, Outputs and Sensors configuration”).

  • Page 111: Inputs, Outputs And Sensors Configuration

    UNIT CONTROLLER 7.13.4.10 Inputs, Outputs and Sensors configuration Optional outputs: There 4 additional available outputs to set. These Inputs: 4 additional outputs are not wired to the YUTAKI terminal board. The system allows to set 7 inputs depending on the operations and preferences of the In order to use them it is required accessory (field installation.
  • Page 112 UNIT CONTROLLER  List of available outputs: • Deactivated • SWP 3WV: (Fixed in output 1 if swimming pool is enabled): Signal control of the 3-way valve of the swimming pool. • Water pump 3: (Fixed in output 2 if hydraulic separator or buffer tank is installed): Signal control of the water pump for hydraulic separator or buffer tank.

  • Page 113: Holiday Mode

    UNIT CONTROLLER 7.13.5 Holiday mode This menu allows to configure the date, time and the temperature conditions for the holiday come back. 1 / 2 Affected zones: Holiday Mode: Configure holiday come back Enable (switch off) or disable (switch on) the •...

  • Page 114: Controller Settings

    UNIT CONTROLLER 7.13.6 Controller settings Under the controller settings menu it is possible to adjust the several parameters: Room Configuration: • Room names: create or edit a name for circuit 1 or circuit 2. • Synoptic view icons: selection of the icon shown in Live view menu for cooling / heating emitters.

  • Page 115: Commissioning

    UNIT CONTROLLER 7.13.7 Commissioning Under the commissioning menu it is possible to adjust the several parameters: Air purge procedure: • Duration Screed Drying: • Start air purge • Circuit 1 setting temperature • Circuit 2 setting temperature • Start screed drying Unit test run: •...

  • Page 116: Factory Reset

    UNIT CONTROLLER 7.13.9 Factory reset This function is only visible for the installer. It asks for removing all the settings and returns to the factory setting configuration. 7.13.10 Installer access Menu to enable the access to configure the system. The login password for the Installer is: Right , Down , Left...

  • Page 117: Return To User Mode

    UNIT CONTROLLER 7.13.11 Return to user mode This function allows to getting out of the “Installer mode”. 7.13.12 Lock the controller This function is only visible for the installer and allows to lock the menu in case of exhibition. This action can also be launched from central.

  • Page 118: Yutaki Cascade Controller

    YUTAKI CASCADE CONTROLLER 8 YUTAKI CASCADE CONTROLLER The new YUTAKI CASCADE CONTROLLER for YUTAKI series (PC-ARFH2E) is an user-friendly remote control which ensures a strong and safe communication through H-LINK. 8.1 DEFINITION OF THE SWITCHES      Liquid Crystal Display ...

  • Page 119: Description Of The Icons

    YUTAKI CASCADE CONTROLLER 8.2 DESCRIPTION OF THE ICONS Icon Name Explanation Circuit I or II is in Demand-OFF Circuit I or II is on Thermo-OFF Status for circuit 1, 2, DHW and swimming Circuit I or II is working between 0 < X ≤ 33% of the desired water outlet temperature pool.
  • Page 120 YUTAKI CASCADE CONTROLLER Icon Name Explanation Heater step Indicates which of the 3 possible heater steps is applied on space heating DHW Heater Informs about DHW Heater operation. (If it is enabled) Solar Combination with solar energy Compressor enabled (For YUTAKI S, S COMBI) Compressor Compressors enabled.

  • Page 121: Cascade Controller Contents

    YUTAKI CASCADE CONTROLLER 8.3 CASCADE CONTROLLER CONTENTS Menu Contents Menu Contents Level 1 Level 2 Level 3 Level 4 Level 5 Level 1 Level 2 Level 3 Level 4 Level 5 Delete all timers configuration Operation Information System Configuration General Modules information Room Thermostats Setting temperature range (air)
  • Page 122 YUTAKI CASCADE CONTROLLER  Installer mode Menu Contents Level 1 Level 2 Level 3 Level 4 Level 5 Icon means that this menu is available only for installer, Water Pump Configuration a special user with higher access privileges to configure the Outdoor average Timer system.

  • Page 123: Cascade Controller Configuration

    YUTAKI CASCADE CONTROLLER 8.4 CASCADE CONTROLLER CONFIGURATION   • Select the desired language using the arrow keys. • Press OK button.  • Configure circuit 1 and circuit 2 OTC: Deactivated, Points, Gradient, Fix. • Enable or disable DHW and Swimming Pool. •...
  • Page 124 YUTAKI CASCADE CONTROLLER   • Select Yes to complete the configuration. • Enable or disable the desired modules (module 1 is enabled by default) • Press OK button to go to the main screen. • Select Next and press OK button. ...

  • Page 125: Main View

    YUTAKI CASCADE CONTROLLER 8.5 MAIN VIEW Main view of the device is composed by a bottom tab widget to move around the different views: • Home • Mode • Room 1 (if space is small it shows R1) • Room 2 (if space is small it shows R2) •...

  • Page 126: Quick Actions Function

    YUTAKI CASCADE CONTROLLER 8.5.1 Quick actions function The following quick actions are shown when pressing the OK button at the selected zone in comprehensive view or room thermostat view:  Room 1/2 • Timer • • Holiday (If Zone is enabled) •...
  • Page 127 YUTAKI CASCADE CONTROLLER  Domestic Hot Water Tank (DHW) • Timer • Boost (If DHW is ON and Boost is availbable. It can also be cancelled from quick actions). • Holiday (If Zone is enabled) • Status  Swimming Pool (SWP) •...

  • Page 128: Home View

    YUTAKI CASCADE CONTROLLER 8.6 HOME VIEW Home view shows on the middle the date and time On the left side it shows: • Inside temperature (home icon): If LCD works as Room 1, it took it from the controller sensor or auxiliary sensor If LCD works as Room 2, it took it from the controller sensor or auxiliary sensor If LCD works as Room 1+2, it took it from the controller sensor or auxiliary sensor, or the average of the ones used per each zones.

  • Page 129: Mode View

    YUTAKI CASCADE CONTROLLER 8.7 MODE VIEW • Mode view shows the selected mode. • In case of being a heating and cooling unit, it lets also to change the mode by using the top/bottom arrows, and it shows the mode spinner on the left side. •...

  • Page 130: Fan Coils 1/2 View

    YUTAKI CASCADE CONTROLLER 8.9 FAN COILS 1/2 VIEW Room 1 or 2 could control Fan Coils. Once configured to control them on the menu, the bottom bar includes the option to manage those fan coils: • Fan speeds: Low, Medium, High and Auto •...

  • Page 131: Dhw View

    YUTAKI CASCADE CONTROLLER 8.11 DHW VIEW DHW view displays: • Water setting feedback • When editing it shows the setting temperature • On right side it has zone notifications for: Next timer action Boost, throughput, operating in comfort and timer icons •...

  • Page 132: Menu

    YUTAKI CASCADE CONTROLLER 8.13 MENU 8.13.1 Operation information In operation information menu it is possible to find the most important setting parameters of the system besides the information of the operation conditions. Detailed information modules: • Operation status Detailed information about: •...

  • Page 133: Timer And Schedule Configuration

    YUTAKI CASCADE CONTROLLER 3 / 3 Detailed information about Solar combination: • Operation (Demand ON/OFF) • Solal Panel temperature Shows a list of the alarm history of the system Detailed information about Communication status: • H-Link • H-Link Central • RCS Central •...
  • Page 134 YUTAKI CASCADE CONTROLLER When a timer is being switched on, if that zone is stopped, it will request to switch on the zone or not. 8.13.2.1 Setting of timer for Room Thermostats Setting of temperature or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings.
  • Page 135 YUTAKI CASCADE CONTROLLER Pressing the “Gear” button during the edition of the timer events for a given weekday displays a menu to copy the daily pattern to other weekdays or to suppress the selected timer event.  Setting with Timer assistant It is possible to set the timer for Room thermostats with a timer assistant.
  • Page 136 YUTAKI CASCADE CONTROLLER Timer assistant asks if user is sensistive to cold. • If senstive to cold is marked as Yes, an offset of 1ºC is applied for heating. PMML0575 rev.1 - 09/2021...
  • Page 137 YUTAKI CASCADE CONTROLLER 8.13.2.2 Setting of timer for Circuit 1/2 To change the operation mode (ECO or Comfort) or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings. Manual operation of the unit controller has priority over schedule settings. Timer configuration: New screen appears to configure a schedule timer.
  • Page 138 YUTAKI CASCADE CONTROLLER 8.13.2.3 Setting of timer for Hot water tank or Swimming Pool Setting the temperature or change of operation state from ON to OFF for a defined period, after which operation returns to the previous settings. Manual operation of the unit controller has priority over schedule settings. Timer configuration: New screen appears to configure a schedule timer.
  • Page 139 YUTAKI CASCADE CONTROLLER 8.13.2.4 Override Configuration When a different configuration from the defined by the timer of a zone is done, it is possible to override the timer configuration during a specific time. Until next action: derogation remains until next action of the timer. Specific Time: derogation status remains for the specified minutes.

  • Page 140: System Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3 System configuration In system configuration menu it is possible to configure all the system settings. Room thermostats configuration: (Screen visible only for room thermostats) 1 / 3 • Setting temperature range (air) • Air Eco Offset Cascade configuration: •...

  • Page 141: Room Thermostats Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.1 Room thermostats configuration Maximum / Minimum temperature for heating and cooling: Configure for Circuit 1/2: Thermostat configuration: • Heating maximum temperature Configure the wired or wireless room • Heating minimum temperature thermostats: • Cooling maximum temperature Thermostat 1: None, wired or wireless •...

  • Page 142: Water Settings Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.2 Water settings configuration This menu is only visible for a room thermostat if the controller is not controlling the unit. Select the desired area to apply the water settings configuration:  Space Heating or Space Cooling water settings Δθ...

  • Page 143: Cascade Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.3 Cascade configuration Supply setting offset • To set YUTAKI Sub Units to work at a setting Modules configuration: temperature higher than setting temperature • Configure the status, refrigerant cycle determined by YUTAKI CASCADE address, indoor unit address and CONTROLLER individual DHW for each module.

  • Page 144: Space Heating / Space Cooling Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.4 Space Heating / Space Cooling configuration Control the temperature for Space Heating or Space Cooling by configuring the following parameters. Water calculation mode: Selection of the water set point for Circuit 1 or Circuit 2 (Space Heating or Space Cooling).
  • Page 145 YUTAKI CASCADE CONTROLLER  Water calculation mode Deactivated The “Deactivated” option sets the circuit as disabled. Points Points is the most versatile calculation type. Set 4 points and one vertex point, to create a line representing the function that the air to water heat pump will use to give the temperature setting according to the current ambient temperature.

  • Page 146: Hot Water Tank Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.5 Hot Water Tank configuration Setting temperature: Status of Hot Water Tank: Setting for domestic hot water • Deactivated temperature selected by the user. The maximum value of this setting depends • Enabled (by default for YUTAKI S COMBI). on the Maximum setting temperature set by the installer.
  • Page 147 YUTAKI CASCADE CONTROLLER DHW Heater: Only available when DHW heater is activated (DSW4 pin 3 ON). Space priority temperature: • Waiting time: Enable or disable waiting time Threshold value of outdoor ambient 3 / 3 for DHW heater. temperature for the activation of the •...

  • Page 148: Swimming Pool Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.6 Swimming Pool configuration Status: Enable or disable swimming pool. Set input 3, output 1 and sensor 2. (see section “8.13.3.11 Inputs, Outputs and Sensors configuration”) Setting temperature: Adjustment of the swimming pool water temperature setting. • Range: 24~33 ºC Offset temperature: The setting temperature is increased by the indicated parameter.

  • Page 149: Complementary Heating Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.7 Complementary Heating configuration Heating Source: • HP Only • HP + Heater • HP + Boiler • HP + Heater + Boiler (Only for YUTAKI S and YUTAKI S COMBI) Electrical heater: See detailed information in “Electrical heater”...
  • Page 150 YUTAKI CASCADE CONTROLLER  Solar combination - Total control DHW maximum time: • Maximum time YUTAKI allows to heat tank by means Solar. At the end of this time Solar pump ΔT connection: is stopped regardless temperature conditions at • Allows to specify a difference temperature Solar Panel.

  • Page 151: Heat Pump Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.8 Heat Pump configuration Water pump configuration: Configure the water pump of the heat Outdoor average temperature: pump. See detailed information in the next page. OTC average is used to neutralise the effect of occasional temperature variations. The average value of outdoor temperature Minimum OFF time: In order to reduce sampled over a selected period (between 1 and...

  • Page 152: Fan Coils

    Only when Economic mode is active • Standard: WP2 is connected after WP3 by (DSW) means an hydraulic separator or directly by means Hitachi mixing kit accessory. Whenever WP2 is switched ON, WP3 is also switched ON in order to transfer heat to C2 •...

  • Page 153: Optional Functions Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.10 Optional functions configuration This menu allows to configure the optional functions for system, space heating or space cooling, DHW and Emergency operation. Heating Auto On/Off: Smart function: To stop automatically stop heating To block or limit the heat pump or operation when the daily average outdoor increase demand due to electricity temperature of the previous day is higher...
  • Page 154 YUTAKI CASCADE CONTROLLER  Smart Function Status: Smart Action: Enable or disable smart function. 1 / 3 Check that Smart Act/SG1 is set in input 5 (see section “8.13.3.11 Inputs, Outputs and Sensors Trigger type: configuration”). • Closed: Action when input is closed •...
  • Page 155 YUTAKI CASCADE CONTROLLER  Heating Auto On / Off Switch-Off Temperature: • Switch Off temperature: System is Status: stopped in case that the outdoor temperature is higher than the Switch- • Enable or disable heating auto on/off function. OFF temperature. •...
  • Page 156 YUTAKI CASCADE CONTROLLER  Hot water tank optional functions Circuit Pump: By using this output, user can heat all the water inside DHW piping system. Output must be configured at the I/O and sensors menu. (see section “8.13.3.11 Inputs, Outputs and Sensors configuration”) •...

  • Page 157: Inputs, Outputs And Sensors Configuration

    YUTAKI CASCADE CONTROLLER 8.13.3.11 Inputs, Outputs and Sensors configuration Optional outputs: Inputs: There 4 additional available outputs to set. These The system allows to set 7 inputs 4 additional outputs are not wired to the YUTAKI depending on the operations and terminal board.
  • Page 158 YUTAKI CASCADE CONTROLLER  List of available outputs • Deactivated • SWP 3WV: (Fixed in output 1 if swimming pool is enabled): Signal control of the 3-way valve of the swimming pool. • Water pump 3: (Fixed in output 2 if buffer tank is installed): Signal control of the water pump for buffer tank. Boiler: (Fixed in input 3 if boiler is enabled): Signal control of the boiler.

  • Page 159: Holiday Mode

    YUTAKI CASCADE CONTROLLER 8.13.4 Holiday mode This menu allows to configure the date, time and the temperature conditions for the holiday come back. 1 / 2 Affected zones: Holiday Mode: Configure holiday • Enable (switch off) or disable (switch on) the come back zones during the holiday period.

  • Page 160: Controller Settings

    YUTAKI CASCADE CONTROLLER 8.13.5 Controller settings Under the controller settings menu it is possible to adjust the several parameters: Room Configuration: • Room names: create or edit a name for circuit 1 or circuit 2 • Synoptic view icons: selection of the icon shown in Live view menu for cooling / heating emitters.

  • Page 161: Commissioning

    YUTAKI CASCADE CONTROLLER 8.13.6 Commissioning Under the commissioning menu it is possible to adjust the several parameters: Screed Drying: • Circuit 1 setting temperature • Circuit 2 setting temperature • Start screed drying 8.13.7 About In this section of the LCD controller it is possible to find the following information: System information: Contact information: •...

  • Page 162: Factory Reset

    YUTAKI CASCADE CONTROLLER 8.13.8 Factory reset This function is only visible for the installer. It asks for removing all the settings and returns to the factory setting configuration. 8.13.9 Installer access Menu to enable the access to configure the system. The login password for the Installer is: Right , Down...

  • Page 163: Return To User Mode

    YUTAKI CASCADE CONTROLLER 8.13.10 Return to user mode This function allows to getting out of the “Installer mode”. 8.13.11 Lock the controller This function is only visible for the installer and allows to lock the menu in case of exhibition. This action can also be launched from central.

  • Page 164: Troubleshooting

    TROUBLESHOOTING 9 TROUBLESHOOTING N O T E • (o): Option configurable from Unit controller. This alarm will be displayed if the system has been configured. • o: Default. This alarm will be displayed in the Unit controller. • –: No applicable. Alarm code indication on remote control switch: Alarm code Alarm indication...
  • Page 165 TROUBLESHOOTING Retry Alarm YUTAKI S Stop YUTAKI S Origin Detail of Abnormality Main Factors Code COMBI Code Triggered in case no YCC messages have been received for more than YCC stops sending messages to slave 180 seconds since last message was unit since YCC has been powered received.
  • Page 166 TROUBLESHOOTING  Alarms for YUTAKI CASCADE CONTROLLER Retry Alarm Stop Origin Detail of Abnormality Main Factors Code Code Loose, disconnected, broken or short- Communication Lost communication with all Sub YUTAKI Units circuited connector Loose, disconnected, broken or short- Indoor Water Circuit 2 thermistor abnormally (THMwo2) circuited connector Loose, disconnected, broken or short- Indoor...
  • Page 167 TROUBLESHOOTING  Alarms for Outdoor units Alarm Category Type of abnormality Main cause Code Activation of PSH, locked motor, abnormal operation in the power supply phase. Activation of protection device Failure of fan motor, drain discharge, PCB, relay, float switch Outdoor unit (high pressure cut) activated.
  • Page 168 TROUBLESHOOTING Alarm Category Type of abnormality Main cause Code Outdoor fan Abnormality in current detection circuit "Compressor failure. This alarm code appears when the following Compressor Compressor protection alarms 02, 07, 08, 45, 47 occur three times within 6 hours." Indoor unit Incorrect setting of unit model No setting of unit capacity or incorrect setting of unit capacity.

  • Page 169: Maintenance

    MAINTENANCE 10 MAINTENANCE 10.1 MAINTENANCE WORK C A U T I O N • All inspections and checks have to be carried out by a licensed technician and never by the user itself. • Before any inspection and check the unit main power supply has to be switched OFF. •...

  • Page 170: General Maintenance Procedure For The Indoor Unit

    MAINTENANCE 10.1.2 General maintenance procedure for the indoor unit To ensure good operation and reliability of the indoor unit, main parts and field wiring have to be checked periodically. The following checks have to be done by qualified technicians at least once a year: 1 Cabinet •...
  • Page 171 MAINTENANCE 5 Security water valve for DHW (if used): • Operation: Check the correct operation of the security water valve (pressure and temperature relief valve) at the DHW inlet connection. Remember that this element must ensure that the following functions are pro vided: Pressure protection, non- return function, shut-off valve, filling and draining.
  • Page 172 MAINTENANCE 8 Safety valve • Operation: Check the correct operation of the indoor unit safety valve (pressure relief valve) on the space heating circuit. Open it manually and some water should be expelled by its connected drain pipe. 9 Air purger: •...
  • Page 173 MAINTENANCE  Draining N O T E Draining operation is unique for each model. Refer to the service manual of the specific unit for drain operation procedure. Draining operation for YUTAKI S YUTAKI S models have no drain port factory supplied. It must be considered the installation of a drain port after the shut-off valve (factory supplied) and before the water inlet of the unit when proceeding to the installation of the unit.
  • Page 176 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. Ronda Shimizu, 1 - Políg. Ind. Can Torrella 08233 Vacarisses (Barcelona) Spain © Copyright 2021 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. – All rights reserved. Printed in Spain...

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