Daikin Altherma 3 R MT ECH2O ERRA08E V3 Series Installer's Reference Manual
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Daikin Altherma 3 R MT ECH2O ERRA08E V3 Series Installer's Reference Manual

Daikin Altherma 3 R MT ECH2O ERRA08E V3 Series Installer's Reference Manual

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ERRA08E▲V3▼
ERRA10E▲V3▼
ERRA12E▲V3▼
ERRA08E▲W1▼
ERRA10E▲W1▼
ERRA12E▲W1▼
ELSH12P30E▲▼
ELSH12P50E▲▼
ELSHB12P30E▲▼
ELSHB12P50E▲▼
ELSX12P30E▲▼
ELSX12P50E▲▼
Installer reference guide
Daikin Altherma 3 R MT ECH₂O
ELSXB12P30E▲▼
ELSXB12P50E▲▼
▲= 1, 2, 3, ..., 9, A, B, C, ..., Z
▼= , , 1, 2, 3, ..., 9
https://daikintechnicaldatahub.eu

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Summary of Contents for Daikin Altherma 3 R MT ECH2O ERRA08E V3 Series

  • Page 1 Installer reference guide Daikin Altherma 3 R MT ECH₂O https://daikintechnicaldatahub.eu ERRA08E▲V3▼ ELSXB12P30E▲▼ ERRA10E▲V3▼ ELSXB12P50E▲▼ ERRA12E▲V3▼ ERRA08E▲W1▼ ▲= 1, 2, 3, …, 9, A, B, C, …, Z ▼= , , 1, 2, 3, …, 9 ERRA10E▲W1▼ ERRA12E▲W1▼ ELSH12P30E▲▼ ELSH12P50E▲▼ ELSHB12P30E▲▼...

  • Page 2: Table Of Contents

    6.6.2 Power limitation activated by digital inputs....................6.6.3 Power limitation process ..........................6.6.4 BBR16 power limitation..........................Setting up an external temperature sensor........................7 Unit installation Installer reference guide ERRA08~12E + ELSH/X(B)12P30+50EG Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 3 To fill the storage tank ........................... 125 8.6.8 To insulate the water piping.......................... 126 9 Electrical installation About connecting the electrical wiring.......................... 127 9.1.1 Precautions when connecting the electrical wiring..................127 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 4 11.6.12 Operation ............................... 262 11.6.13 WLAN ................................263 11.7 Menu structure: Overview user settings ........................266 11.8 Menu structure: Overview installer settings ......................... 267 12 Commissioning Installer reference guide ERRA08~12E + ELSH/X(B)12P30+50EG Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 5 17.5 Wiring diagram: Indoor unit............................314 17.6 ESP curve: Indoor unit ..............................320 17.7 Name plate: Indoor unit..............................320 18 Glossary 19 Field settings table ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 6: About The Documentation

    Format: Paper (in the box of the indoor unit) ▪ User reference guide: Detailed step-by-step instructions and background information for basic and advanced usage Format: Digital files on https://www.daikin.eu. Use the search function find your model. ▪ Installation manual – Outdoor unit: Installation instructions Format: Paper (in the box of the outdoor unit) ▪...

  • Page 7: Meaning Of Warnings And Symbols

    A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of the latest technical data is available on the Daikin Business Portal (authentication required). Online tools In addition to the documentation set, some online tools are available for installers: ▪...

  • Page 8: Installer Reference Guide At A Glance

    About the units and options ▪ How to identify the units ▪ Possible combinations of units and options Application guidelines Various installation setups of the system ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 9 Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 10: General Safety Precautions

    WARNING Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin unless otherwise specified. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

  • Page 11: Installation Site

    ▪ Use a separate recovery system so that the unit's compressor does NOT have to operate. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 12 ONLY use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system. ▪ Charge the liquid refrigerant as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 13: Water

    If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 14 Install power cables at least 1  meter away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1  meter may NOT be sufficient. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 15 ON and OFF while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 16: Specific Installer Safety Instructions

    Install the indoor unit at a minimum distance of 1 m from other heat sources (>80°C) (e.g. electrical heater, oil heater, chimney) and combustible materials. Otherwise the unit may be damaged or in extreme cases catch fire. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 17 WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed ONLY by authorised persons. Installation patterns (see "7.1.5 Installation patterns" [...
  • Page 18 R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere. ▪ When charging refrigerant, ALWAYS use protective gloves and safety glasses. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 19 Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 20 [5.7.5] is NOT interrupted by possible domestic hot water demand. Commissioning (see "12 Commissioning" [  268]) WARNING Commissioning MUST be in accordance with the instructions from this manual. See "12 Commissioning" [  268]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 21 Reason: In case of a breakdown, refrigerant might leak into the water circuit, and subsequently into the room when you purge air from the heat emitters or collectors. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 22 "7.3.7 To remove the discharge grille, and put the grille in safety position" [  97] DANGER: RISK OF BURNING/SCALDING The water in the storage tank and all the connected piping can be very hot. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 23: About The Box

    To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. Crane Keep the slings within the marked area to not damage the unit. Forklift or pallet truck Enter the pallet from the heavy side. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 24: To Unpack The Outdoor Unit

    After unpacking, carry the unit using the slings attached to the unit. See also: ▪ "4.1.2 To unpack the outdoor unit" [  24] ▪ "7.3.4 To install the outdoor unit" [  93] 4.1.2 To unpack the outdoor unit ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 25: To Remove The Accessories From The Outdoor Unit

    Multilingual fluorinated greenhouse gases label i Fluorinated greenhouse gases label j Energy label k Discharge grille (upper + lower part) l Installation manual – Discharge grille ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 26: Indoor Unit

    (see "7.2.6 To open the indoor unit" [  87]). 4.2.1 To unpack the indoor unit ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 27: To Remove The Accessories From The Indoor Unit

    Top cover screw t WLAN cartridge u General safety precautions v Indoor unit installation manual w Operation manual x Addendum software changelog y Addendum commercial warranty ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 28: To Handle The Indoor Unit

    3 Use the handles to carry the unit. 4 After carrying the unit remove the handles, add the screw plugs again and insert the thread covers on the plugs. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 29: About The Units And Options

    European refrigerant split outdoor pair heat pump High water temperature – ambient zone 2 (see operation range) Refrigerant R32 Capacity class Model series Power supply: V3=1N~, 220~240 V, 50 Hz W1=3N~, 380~415 V, 50 Hz ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 30: Identification Label: Indoor Unit

    Certain options may NOT be available in your country. 5.3.1 Possible combinations of indoor unit and outdoor unit Indoor unit Outdoor unit ERRA08 ERRA10 ERRA12 ELSH/X12 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 31: Possible Options For The Outdoor Unit

    Remote indoor sensor (KRCS01-1) By default the internal sensor of the dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) will be used as room temperature sensor. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 32 WLAN module (BRP069A71) As an alternative to the WLAN cartridge, you can install the wireless LAN module BRP069A71 to control the system via a smartphone app. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 33 For installation instructions, see the installation manual of the BIV connector kit. Fill and drain kit (165215) You can install the fill and drain kit to simplify the filling and draining procedure of the storage tank. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 34 A solar drainback kit including solar pump and solar controller can be directly connected to the pressureless storage tank of the indoor unit. For installation instructions, see the installation manual of the solar drainback kit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 35: Application Guidelines

    Setting up the power consumption control ▪ Setting up an external temperature sensor ▪ Setting up a bivalent heat source for domestic hot water and space heating ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 36: Setting Up The Space Heating/Cooling System

    NOTICE A differential pressure bypass valve can be integrated in the system. Keep in mind that this valve might not be shown on the illustrations. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 37: Single Room

    For your daily needs, you can use preset values and schedules. To deviate from your daily needs, you can temporarily overrule the preset values and schedules, or use the holiday mode. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 38 Code: [C-05] heating or cooling demand. Benefits ▪ Wireless. The Daikin external room thermostat is available in a wireless version. ▪ Efficiency. Although the external room thermostat only sends ON/OFF signals, it is specifically designed for the heat pump system. ▪...

  • Page 39: External Room Thermostat)

    OFF condition. No separation between ▪ Code: [C-05] heating or cooling demand. Benefits ▪ Cooling. The heat pump convector offers, besides heating capacity, also excellent cooling capacity. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 40 ▪ The space operation mode is sent by one digital output (X12M/9 and X12M/10) on the indoor unit to: The heat pump convectors The shut-off valve ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 41: Multiple Rooms - One Lwt Zone

    Human Comfort Interface (BRC1HHDA) or an external room thermostat), while the other rooms are controlled by so-called thermostatic valves, which open or close depending on the room temperature. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 42 Number of water temperature zones: 0 (Single zone): Main ▪ #: [4.4] ▪ Code: [7-02] Benefits ▪ Easy. Same installation as for one room, but with thermostatic valves. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 43 Compared with underfloor heating or radiators for one room: ▪ Comfort. You can set the desired room temperature, including schedules, for each room via the room thermostats. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 44 ON/ ▪ #: [2.A] OFF condition. No separation between ▪ Code: [C-05] heating or cooling demand. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 45 EKVKHPC on each heat pump convector. Configuration Setting Value Unit temperature control: 1 (External room thermostat): Unit operation is decided by the ▪ #: [2.9] external thermostat. ▪ Code: [C-07] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 46 The addendum book for optional equipment ▪ For each room with underfloor heating: The desired room temperature is set via the external room thermostat (wired or wireless). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 47: Multiple Rooms - Two Lwt Zones

    In cooling mode, you can allow the underfloor heating (main zone) to provide refreshment (no real cooling), or NOT allow it. See setup below. Setup Three bizone kit system variations are possible: System without hydraulic separator: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 48 A Additional leaving water temperature zone B Room 1 C Room 2 D Main leaving water temperature zone E Room 3 a Heat pump convectors (+ controllers) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 49 (X12M/19 and X12M/22). The indoor unit will only supply the desired additional leaving water temperature when there is an actual demand. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 50 If the main zone must be shut off during cooling mode to prevent condensation on the floor, set it accordingly. "Bizone kit" [  260] for more information on configuration of the bizone kit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 51: Setting Up Bivalent Heat Sources

    (status of the changeover to external heat source). When the permission is given to the auxiliary boiler, the space heating by the indoor unit is turned OFF. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 52 Make sure the auxiliary boiler and its integration in the system complies with applicable legislation. ▪ Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler system. ▪ Make sure the return water to the heat pump does NOT exceed 60°C. To do so: Set the desired water temperature via the auxiliary boiler controller to maximum 60°C.
  • Page 53 NOT influenced or turned ON/OFF by direct sunlight. ▪ Frequent changeover may cause corrosion of the auxiliary boiler. Contact the manufacturer of the auxiliary boiler for more information. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 54: Setting Up An Indirect Auxiliary Heat Source For Domestic Hot Water And Space Heating

    ▪ Make sure the auxiliary boiler and its integration in the system complies with applicable legislation. ▪ Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler system. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O...

  • Page 55: Setting Up A Solar System Via Drainback Connection

    6.3.3 Setting up a solar system via drainback connection A pressureless solar system can be directly connected to the storage tank via drainback connection. Setup 1 Integrate the solar system as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 56: Setting Up A Solar System Via Bivalent Heat Exchanger

     257] for more information on configuration. 6.3.4 Setting up a solar system via bivalent heat exchanger Setup 1 Integrate the solar system as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 57: Setting Up An Electric Backup Heater

    6.4 Setting up the storage tank 6.4.1 System layout – Integrated storage tank A Domestic hot water a Cold water IN b Hot water OUT ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 58: Selecting The Volume And Desired Temperature For The Storage Tank

    The lower the desired storage tank temperature, the more cost effective. By selecting a larger storage tank, you can lower the desired storage tank temperature. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 59: Setup And Configuration - Storage Tank

    "9.3.7 To connect the domestic hot water pump" [  149]. ▪ For installation instructions of the optional recirculation connection, see the installation manual of the recirculation kit (141554). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 60: Dhw Pump For Disinfection

    Via the user interface, you can read out the following energy data: Produced heat Consumed energy ▪ You can read out the energy data: For space heating For space cooling For domestic hot water production ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 61: Produced Heat

    Requires external power meters. ▪ Setup and configuration: When using electrical power meters, set the number of pulses/kWh for each power meter via the user interface. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 62: Normal Kwh Rate Power Supply

    Outdoor unit (L d Fuse (L e Indoor unit (L e Outdoor unit (L f Backup heater (L f Indoor unit (L g Backup heater (L ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 63: Preferential Kwh Rate Power Supply

    A Outdoor unit B Indoor unit a Electrical cabinet (L /N): Preferential kWh rate power supply b Electrical cabinet (L /N): Normal kWh rate power supply ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 64: Setting Up The Power Consumption Control

    Permanent power limitation is useful to assure a maximum power or current input of the system. In some countries, legislation limits the maximum power consumption for space heating and DHW production. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 65: Power Limitation Activated By Digital Inputs

    6.6.2 Power limitation activated by digital inputs Power limitation is also useful in combination with an energy management system. The power or current of the entire Daikin system is limited dynamically by digital inputs (maximum four steps). Each power limitation level is set via the user interface by limiting one of the following: ▪...

  • Page 66: Power Limitation Process

    Produced heat Consumed energy A Outdoor unit B Backup heater a Limited outdoor unit operation b Full outdoor unit operation c Backup heater step 1 turned ON ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 67: Bbr16 Power Limitation

    That is NOT exposed to direct sunlight That is NOT near a heat source That is NOT affected by outside air or air draught because of, for example, door opening/closing ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 68 To protect the outdoor unit, the internal sensor of the outdoor unit is always used. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 69: Unit Installation

    (e.g. grinding works) where a lot of dust is created, the unit MUST be covered. WARNING DO NOT reuse refrigerant piping that has been used with any other refrigerant. Replace the refrigerant pipes or clean thoroughly. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 70: Installation Site Requirements Of The Outdoor Unit

    Prevailing wind direction c Air outlet a Baffle plate b Prevailing wind direction c Air outlet Do NOT install the unit in the following places: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 71 Outdoor unit d Windbreaker The outdoor unit is designed for outdoor installation only, and for the following ambient temperatures: Cooling mode 10~43°C Heating mode –25~25°C ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 72: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates

    Mind the following measurements guidelines: Maximum refrigerant piping length between indoor unit and 50 m outdoor unit Minimum refrigerant piping length between indoor unit and 3 m outdoor unit ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 73 >5°C. ▪ In places where the unit is exposed to direct sunlight for long periods of time. Extensive UV radiation can damage the unit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 74: Special Requirements For R32 Units

    Joints made in the installation between parts of the refrigerant system shall be accessible for maintenance purposes. WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed ONLY by authorised persons. NOTICE ▪...

  • Page 75: Installation Patterns

    Unit's connection point for the chimney = 1" male thread. Use a compatible counterpart for the chimney. ▪ Make sure the connection is airtight. Chimney ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 76 When connecting a chimney ▪ Install the chimney socket (delivered as accessory) to the plate heat exchanger box. 1× 1× 1× 1× a Chimney socket b Securing clip ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 77 Chimney height = ΔH0 See table 3: For ΔH0: Can the maximum chimney length be respected, and is the chimney practically feasible? ΔH0 Go to PATTERN 2 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 78 ▪ Must be ≥50% of A (minimum bottom opening area). nv-min Min. 50% ▪ Must be ≥1.5 m from the floor. of A nv-min (≥A nv-min ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 79 Ventilation openings must comply with A and with nv-min "Conditions ventilation openings" on previous page). Min. 50% Min. 50% ΔH1 of A of A nv-min nv-min (≥A (≥A nv-min nv-min ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 80 2.35 m 2.01 m 3.45 kg 3.75 m 2.50 m 2.14 m 1.91 m 3.65 kg 3.96 m 2.64 m 2.26 m 2.02 m 3.85 kg 4.18 m 2.79 m 2.38 m 2.13 m 1.95 m 4.05 kg 4.40 m 2.93 m 2.51 m 2.24 m 2.05 m 1.89 m ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 81 Floor area of room A (m²) [! NOT room A + room B !] 4.00 m² 6.00 m² 8.00 m² 10.00 m² 12.00 m² 14.00 m² 16.00 m² 1.89 m 5.260 dm² 3.276 dm² 2.419 dm² 1.630 dm² 0.828 dm² 0.022 dm² 1.90 m 5.229 dm² 3.240 dm² 2.378 dm² 1.585 dm² 0.779 dm² ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 82 14.00 m² 16.00 m² 2.00 m 4.892 dm² 2.852 dm² 1.936 dm² 1.093 dm² 0.241 dm² 2.20 m 4.276 dm² 2.135 dm² 1.117 dm² 0.180 dm² 2.40 m 3.721 dm² 1.485 dm² 0.371 dm² 2.60 m 3.217 dm² 0.890 dm² 2.80 m 2.755 dm² 0.340 dm² 3.00 m 2.328 dm² ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 83 For intermediate refrigerant charges, use the row with the higher value. Example: If the refrigerant charge is 3.5 kg, use the row of 3.55 kg. Total refrigerant charge (kg) (dm²) nv-min 3.25 kg 9.1 dm² 3.35 kg 9.2 dm² 3.45 kg 9.4 dm² ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 84: Opening And Closing The Units

    2 If necessary, open the side cover. This is, for example, necessary in the following cases: ▪ When connecting the refrigerant piping. ▪ When checking the refrigerant piping. ▪ When charging refrigerant. ▪ When recovering refrigerant. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 85: To Remove The Transportation Stay

    2 Remove the screws (5×) from the transportation stay. Remove the transportation stay and dispose of it. Keep 4 screws to attach the compressor cover piece (see "7.2.4 To attach the compressor cover piece" [  86]). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 86: To Attach The Compressor Cover Piece

    7.2.5 To close the outdoor unit NOTICE When closing the outdoor unit cover, make sure that the tightening torque does NOT exceed 4.1 N•m. 1 If necessary, close the side cover. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 87: To Open The Indoor Unit

    3× 7.2.6 To open the indoor unit Overview 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 5 Side panel ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 88 Prerequisite: The user interface panel has been lowered. 1 Loosen the screws. 2 Lift up the switch box. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 89 Prerequisite: The user interface panel has been opened and the switch box has been lowered. 1 Open the locking parts of the side panels with a screw driver. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 90 3 Lift the top cover out of its mounting using the two front legs. 4 Remove the top cover. A For models with 500 l storage tank B For models with 300 l storage tank ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 91: To Close The Indoor Unit

    Installing the discharge grille. Protecting the unit against snow and wind by installing a snow cover and baffle plates. See "7.1 Preparing the installation site" [  69]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 92: Precautions When Mounting The Outdoor Unit

    When installing on a pedestal, make sure that the discharge grille still can be put in its safety position. See "7.3.7 To remove the discharge grille, and put the grille in safety position" [  97]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 93: To Install The Outdoor Unit

    To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. 1 Carry the unit by its slings, and put it onto the installation structure. 2 Fix the unit to the installation structure. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 94: To Provide Drainage

    (see the following figure). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 95: To Install The Discharge Grille

    7.3.6 To install the discharge grille INFORMATION Electrical wiring. Before installing the discharge grille, connect the electrical wiring. Install the lower part of the discharge grille 1 Insert the hooks. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 96 4 Align and attach the left side. 5 Align and attach the middle part. 6 Align and attach the right side. 7 Insert the hooks. 8 Insert the ball studs. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 97: To Remove The Discharge Grille, And Put The Grille In Safety Position

    "7.3.7 To remove the discharge grille, and put the grille in safety position" [  97] 1 Remove the upper part of the discharge grille. 4× 2 Remove the lower part of the discharge grille. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 98 4 Align the ball stud and hook on the grille with their counterparts on the unit. 5 Insert the hook. 6 Insert the ball stud. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 99: Mounting The Indoor Unit

    1 Open the screw plug. a Screw plug b Assembly wrench c Spillover connector 2 Insert the spillover connector into the screw plug. 3 Mount the spillover connector. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 100 7 Connect the pressure relief valve to an appropriate drain in accordance with the applicable legislation. Ensure that any steam or water that may escape is drained in a frost-protected, safe and observable manner. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 101: Piping Installation

    Connect both ends without brazing. If brazing should be needed, take the guidelines in the installer reference guide into account. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 102: Refrigerant Piping Insulation

    8.2.1 About connecting the refrigerant piping Before connecting the refrigerant piping Make sure the outdoor and indoor unit are mounted. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 103: Precautions When Connecting The Refrigerant Piping

    ▪ Use caution when passing copper tubes through walls (see figure below). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 104: Guidelines When Connecting The Refrigerant Piping

    Use flare nuts that are included with the unit. Using different flare nuts may cause refrigerant gas leakage. 1 Cut the pipe end with a pipe cutter. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 105: To Braze The Pipe End

    Taping d Manual valve e Pressure-reducing valve f Nitrogen ▪ Do NOT use anti-oxidants when brazing pipe joints. Residue can clog pipes and break equipment. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 106: Using The Stop Valve And Service Port

    1 Remove the stop valve cover. 2 Insert a hexagon wrench (liquid side: 4  mm, gas side: 4  mm) into the valve stem and turn the valve stem: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 107: To Connect The Refrigerant Piping To The Outdoor Unit

    1 Open the outdoor unit step 1 and 2 ("7.2.2 To open the outdoor unit" [  84]). 2 Detach the outer side of the rubber grommet. 3 Do the following: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 108 Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 109: To Connect The Refrigerant Piping To The Indoor Unit

    Checking the refrigerant piping typically consists of the following stages: Checking for leaks in the refrigerant piping. Performing vacuum drying to remove all moisture, air or nitrogen from the refrigerant piping. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 110: Precautions When Checking The Refrigerant Piping

    Stop valve 8.3.4 To check for leaks NOTICE Do NOT exceed the unit's maximum working pressure (see "PS High" on the unit name plate). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 111: To Perform Vacuum Drying

    NOT increase. This might be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does NOT present any problem for correct operation of the unit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 112: Charging Refrigerant

    ▪ Before vacuum drying or recharging, activate field setting "vacuum mode". ▪ After finishing vacuum drying or recharging, deactivate field setting "vacuum mode". ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 113: Precautions When Charging Refrigerant

    ≤10 m Do NOT add additional refrigerant. >10 m R=(total length (m) of liquid piping⁠ – ⁠ 1 0 m)×0.020 R=Additional charge (kg) (rounded in units of 0.01 kg) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 114: Completely Recharging Refrigerant

    "16.1.3 Recovery mode — In case of 3N~ models (7-segments display)" [  297] ▪ "16.1.4 Recovery mode — In case of 1N~ models (7-LEDs display)" [  300] Charging refrigerant: Setup "8.3.3 Checking refrigerant piping: Setup" [  110]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 115: To Fix The Fluorinated Greenhouse Gases Label

    Use the GWP value mentioned on the refrigerant charge label. 2 Fix the label on the inside of the outdoor unit. There is a dedicated place for it on the wiring diagram label. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 116: Preparing Water Piping

    When the flow is lower, the indoor unit will stop operation and display error 7H. If operation is… Then the minimum required flow rate is… Cooling 10 l/min Heating/defrost 20 l/min ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 117 Non-brass metallic piping. When using non-brass metallic piping, insulate the brass and non-brass properly so that they do NOT make contact with each other. This to prevent galvanic corrosion. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 118: To Check The Water Volume And Flow Rate

    (see table below) is always available in the space heating/cooling loop of the unit, even when the available volume towards the unit is reduced because of closure of ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 119: Connecting Water Piping

     270]. 8.6 Connecting water piping 8.6.1 About connecting the water piping Before connecting the water piping Make sure the outdoor and indoor unit are mounted. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 120: Precautions When Connecting The Water Piping

    2 Connect the shut-off valves using the flat gaskets (accessory bag) to the space heating/cooling water pipes of the indoor unit. 3 Connect the space heating/cooling field piping to the shut-off valves using a sealing. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 121 5 Support the water piping. For rearward facing connections: Support hydraulic lines suitably according to the spatial conditions. This is valid for all water pipes. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 122 DHW – Cold water IN (male, 1") *e Pressure relief valve (max. 10 bar (=1.0 MPa))(mandatory) f Non-return valve (recommended) g Pressure gauge (recommended) *h Tundish (mandatory) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 123: To Connect The Expansion Vessel

    There may not be any hydraulic blocking elements between the heat generator and the safety valve. 2 Position the pressure vessel in an easily accessible place (maintenance, parts replacement). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 124: To Fill The Heating System

    Space heating/cooling water IN e.1 Valve motor e.2 Valve motor latch f Water tap g Automatic air purge valve h Pressure gauge (field supply) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 125: To Fill The Heat Exchanger Inside The Storage Tank

    Fill the storage tank with a water pressure <6 bar and a flow speed <15 l/min. Without installed drainback solar kit (option) 1 Connect a hose with non-return valve (1/2") to the drainback connection. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 126: To Insulate The Water Piping

    If the temperature is higher than 30°C and the humidity is higher than RH 80%, the thickness of the insulation materials should be at least 20  mm to prevent condensation on the surface of the insulation. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 127: Electrical Installation

    ▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 128: Guidelines When Connecting The Electrical Wiring

    Method 1: Twisting conductor 1 Strip insulation (20 mm) from the wires. 2 Slightly twist the end of the conductor to create a "solid-like" connection. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 129 Terminal b Screw c Flat washer Allowed NOT allowed Tightening torques Outdoor unit: Item Tightening torque (N•m) 1.47 ±10% M4 (earth) Indoor unit: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 130: About Electrical Compliance

    9.1.5 Overview of electrical connections except external actuators NOTICE Unlike to other indoor unit model types, Daikin Altherma 3 * ECH₂O always needs a dedicated power supply for the indoor unit. It is NOT possible to use the interconnection cable as power supply for the indoor unit.

  • Page 131: Connections To The Outdoor Unit

    Drain tube heater cable Connection for power saving function (only for V3 models) Air thermistor cable "9.2.3 To reposition the air thermistor on the outdoor unit" [  136]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 132: Specifications Of Standard Wiring Components

    An excessive strip length may cause electrical shock or leakage 3 Insert the cables at the back of the unit, and route them through the factory- mounted cable sleeves into the switch box. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 133 ▪ Connect the wires to the terminal block. ▪ Fix the cable with a cable tie. Wires: 1N+GND Maximum running current: Refer to name plate on unit. — ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 134 — 3 (Optional) Power saving function: If you want to use the power saving function: ▪ Disconnect X804A from X805A. ▪ Connect X804A to X806A. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 135 ▪ Connect the wires to the terminal block. ▪ Fix the cable with a cable tie. Wires: 3N+GND Maximum running current: Refer to name plate on unit. — ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 136: To Reposition The Air Thermistor On The Outdoor Unit

    9.2.3 To reposition the air thermistor on the outdoor unit This procedure is only necessary in areas with low ambient temperatures. Required accessory (delivered with the unit): Thermistor fixture. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 137: Connections To The Indoor Unit

    Changeover to external "9.3.10 To connect the changeover to external heat source control heat source" [  152]. Power consumption digital "9.3.11 To connect the power consumption inputs digital inputs" [  153]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 138 For the main zone: ▪ [2.9] Control ▪ [2.A] Ext thermostat type For the additional zone: ▪ [3.A] Ext thermostat type ▪ [3.9] (read-only) Control ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 139 Addendum book for optional equipment Wired room thermostat ▪ Installation manual of the wired room without multi-zoning base unit thermostat ▪ Addendum book for optional equipment ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 140: To Connect The Electrical Wiring To The Indoor Unit

    If the switch box is lowered in service position while the electrical installation is done, additional cable length has to be taken into account adequately. The cable routing in normal position is longer than in service position. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 141: To Connect The Main Power Supply

    2 Connect the main power supply. In case of normal kWh rate power supply Interconnection cable Wires: (3+GND)×1.5 mm² Power supply indoor Wires: 1N+GND unit Maximum running current: 6.3 A ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 142 Preferential kWh rate power supply contact: 16 V DC detection (voltage supplied by PCB). The voltage-free contact shall ensure the minimum applicable load of 15 V DC, 10 mA. [9.8] Benefit kWh power supply ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 143: To Connect The Backup Heater Power Supply

    [9.3] Backup heater WARNING The backup heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 144: Running Current

    Z less than or equal to Z Connect the backup heater power supply as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 145 Electrical installation Model (power supply) Connections to backup heater power supply *3V (3V: 1N~ 230 V) SWB2 Q1DI 1N~, 50 Hz 230 V AC ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 146: To Connect The Backup Heater To The Main Unit

    1 Open the following (see "7.2.6 To open the indoor unit" [  87]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 5 Side panel ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 147: To Connect The Shut-Off Valve

    3 Connect the valve control cable to the appropriate terminals as shown in the illustration below. NOTICE Wiring is different for a NC (normally closed) valve and a NO (normally open) valve. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 148: To Connect The Electricity Meters

    3 Switch box cover 4 Top cover 5 Side panel 3 Connect the electricity meters cable to the appropriate terminals as shown in the illustration below. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 149: To Connect The Domestic Hot Water Pump

    3 Switch box cover 4 Top cover 5 Side panel 3 Connect the domestic hot water pump cable to the appropriate terminals as shown in the illustration below. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 150: To Connect The Alarm Output

    3 Switch box cover 4 Top cover 5 Side panel 3 Connect the alarm output cable to the appropriate terminals as shown in the illustration below. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 151: To Connect The Space Cooling/Heating On/Off Output

    3 Switch box cover 4 Top cover 5 Side panel 3 Connect the space cooling/heating ON/OFF output cable to the appropriate terminals as shown in the illustration below. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 152: To Connect The Changeover To External Heat Source

    4 Top cover 5 Side panel 3 Connect the changeover to external heat source cable to the appropriate terminals as shown in the illustration below. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 153: To Connect The Power Consumption Digital Inputs

     87]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 5 Side panel 3 Install the switch box metal insert. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 154 5 Fix the cable with cable ties to the cable tie mountings. General information, "9.3.1 To connect the electrical wiring to the indoor unit" [  140]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 155: To Connect The Safety Thermostat (Normally Closed Contact)

    X15M 4 Fix the cable with cable ties to the cable tie mountings. General information, "9.3.1 To connect the electrical wiring to the indoor unit" [  140]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 156: Smart Grid

    ([9.A.2] Electricity meter 2 = None) In case of low voltage Smart Grid contacts Wires (Smart Grid pulse meter): 0.5 mm² Wires (low voltage Smart Grid contacts): 0.5 mm² ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 157 X15M.3 X15M.10 3 4 5 6 9 10 X15M.9 X15M X15M.6 S11S X15M.5 3 Fix the cables with cable ties to the cable tie mountings. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 158 1 Install the switch box metal insert. 2 Loosen the cables connected to the terminal of the Smart Grid relay kit (EKRELSG) and remove the terminal. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 159 Electrical installation 3 Install the components of the Smart Grid relay kit as follows: 2× 2× ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 160 X12M.25 X12M.24 X15M.5 X15M.6 4 Connect the low voltage wiring as follows: X15M.10 X15M.9 9 10 X15M 5 Connect the high voltage wiring as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 161: To Connect The Wlan Cartridge (Delivered As Accessory)

    9.3.14 To connect the WLAN cartridge (delivered as accessory) [D] Wireless gateway 1 Insert the WLAN cartridge into the cartridge slot on the user interface of the indoor unit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 162: To Connect The Solar Input

    9.3.16 To connect the DHW output Wires: 2×0.75 mm² Maximum running current: 0.3 A, 230 V AC — 1 Open the following (see "7.2.6 To open the indoor unit" [  87]): ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 163 0,3 A - 230 V AC 3 Fix the cable with cable ties to the cable tie mountings. General information, "9.3.1 To connect the electrical wiring to the indoor unit" [  140]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 164: Finishing The Outdoor Unit Installation

    Gas pipe insulation c Interconnection cable d Field wiring (if applicable) e Liquid pipe f Liquid pipe insulation g Finishing tape 2 Install the service cover. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 165: Configuration

    The calculations of the software ▪ What you can see on and do with the user interface You can configure the system via the user interface. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 166: To Access The Most Used Commands

    ▪ Confirm the pin code and proceed. Installer pin code The Installer pin code is 5678. Additional menu items and installer settings are now available. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 167 3 Turn the left dial to select the first part of the setting and confirm by pressing the dial. 4 Turn the left dial to select the second part of the setting 01 15 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 168: To Connect The Pc Cable To The Switch Box

    2 Connect the plug of the cable to X10A on A1P of the switch box of the indoor unit. X10A 3 Pay special attention to the position of the plug! ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 169: Configuration Wizard

     199] Control [2.9] Setpoint mode [2.4] Heating WD curve [2.5] (if applicable) Cooling WD curve [2.6] (if applicable) Schedule [2.1] WD curve type [2.E] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 170: Possible Screens

    Main menu screen c Lower level screens: c1: Setpoint screen c2: Detailed screen with values c3: Screen with weather-dependent curve c4: Screen with schedule ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 171: Home Screen

    Smart energy is currently being used for domestic hot water. Space operation mode Cooling Heating Outdoor / quiet mode Measured outdoor temperature Quiet mode active Outdoor unit ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 172 Installed heat emitter type: Underfloor heating Fancoil unit Radiator Leaving water temperature setpoint ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 173: Main Menu Screen

    Shows the applicable symbol of your unit. Space heating/ cooling Put the unit in heating mode or cooling mode. You cannot change the mode on heating only models. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 174: Menu Screen

    The setpoint screen is displayed for screens describing system components that need a setpoint value. Examples [1] Room temperature screen [2] Main zone screen °C °C – – Room Main zone ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 175: Detailed Screen With Values

    Selected setting and value Possible actions on this screen Go through the list of settings. Change the value. Go to the next setting. Confirm changes and proceed. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 176: Schedule Screen: Example

    To clear the content of the week schedule 1 Select the name of the current schedule. User defined 1 2 Select Delete. Delete Rename Select 3 Select OK to confirm. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 177 In this example, Monday is the first day you programmed. Thus, the last programmed action is valid up to the first action of next Monday. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 178 5 Repeat this action for all other weekdays. — User defined 1 To program the schedule for Saturday and copy it to Sunday 1 Select Saturday. 2 Select Edit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 179 The schedule name can contain up to 15 characters. 5 Confirm the new name. INFORMATION Not all schedules can be renamed. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 180: Preset Values And Schedules

    "Possible actions" in "Possible predefined schedules are not satisfactory. schedules" [  181] The actions you can program are control ▪ "11.4.3  Schedule screen: specific. Example" [  183] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 181 [1.3] Room > Cooling Predefined schedules: 1 schedule Activation screen: [1.1] Schedule Schedule for the desired room Possible actions: Temperatures within range. temperature in cooling mode. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 182 Activation screen: Not applicable. This schedule water tank temperature for is automatically activated if the DHW mode is your normal domestic hot the following: water needs. ▪ Scheduled reheat ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 183: Schedule Screen: Example

    4 Copy the schedule to the other weekdays. 5 Program the schedule for Saturday and copy it to Sunday. 6 Give the schedule a name. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 184 User defined 1 2 Select Delete. Delete Edit Copy 3 Select OK to confirm. To program the schedule for Monday 1 Select Monday. User defined 1 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 185 1 Select Monday. User defined 1 2 Select Copy. Delete Edit Copy Result: Next to the copied day, "C" is displayed. 3 Select Tuesday. User defined 1 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 186 8:00 21°C 23:00 18°C --:-- 4 Confirm the changes. 5 Select Saturday. 6 Select Copy. 7 Select Sunday. 8 Select Paste. Result: User defined 1 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 187: Setting The Energy Prices

    [7.5.1]=12 To set the gas price 1 Go to [7.6]: User settings > Gas price. 2 Select the correct gas price. 3 Confirm the changes. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 188 To set the electricity price in case of an incentive per kWh renewable energy Calculate the value for the electricity price with following formula: ▪ Actual electricity price+Incentive/kWh ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 189: Weather-Dependent Curve

    ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 190: 2-Points Curve

    The icon corresponds to the heat emitter for that zone: ▪ : Underfloor heating ▪ : Fan coil unit ▪ : Radiator ▪ : Storage tank ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 191: Slope-Offset Curve

    X2. ▪ When offset is changed, the new preferred temperature at X1 is equally higher as the preferred temperature at X2. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 192: Using Weather-Dependent Curves

    [3.4] Additional zone > Setpoint WD heating, fixed cooling OR mode Weather dependent Additional zone – Cooling [3.4] Additional zone > Setpoint Weather dependent mode Tank ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 193 … temperatures … Cold ↑ — ↓ — Cold ↓ ↑ Cold Cold — ↑ Cold ↓ ↑ ↑ ↓ Cold ↑ ↓ — ↓ ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 194: Settings Menu

    [1.1] Schedule Main zone Additional zone [1.2] Heating schedule [1.3] Cooling schedule [1.4] Antifrost [1.5] Setpoint range [1.6] Room sensor offset [1.7] Room sensor offset ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 195 Room frost protection is NOT guaranteed. ([C‑07]=0) External room thermostat control Allow for the external room thermostat to take care of room frost protection: ([C‑07]=1) ▪ [C.2] Space heating/ cooling=On. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 196 [9.5.1] Emergency=Automatic or auto SH normal/DHW off. However, if [1.4.1] Antifrost is activated, limited frost protection by the unit is possible. In case of 1 leaving water temperature zone: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 197 When the dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) is disconnected (because of incorrect wiring or damage of the cable), then room frost protection is NOT guaranteed. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 198 ▪ –5°C~5°C, step 0.5°C Room comfort setpoint Restriction: Only applicable if: ▪ Smart Grid is enabled ([9.8.4]=Smart Grid), and ▪ Room buffering is enabled ([9.8.7]=Yes) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 199: Main Zone

    ▪ In Weather dependent LWT setpoint mode, the scheduled actions consist of desired shift actions, either preset or custom. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 200 10°C. Heating WD curve Set weather-dependent heating for the main zone (if [2.4]=1 or 2): ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 201 Note: This value should be lower than [1‑02] as for high outdoor temperatures less warm water is required. Cooling WD curve Set weather-dependent cooling for the main zone (if [2.4]=2): ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 202 It is important to set Emitter type correctly and in accordance with your system layout. The target delta T for the main zone depends on it. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 203 Setpoint range To prevent a wrong (i.e. too hot or too cold) leaving water temperature for the main leaving water temperature zone, limit its temperature range. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 204 ▪ Else: 37°C~55°C [2.8.3] [9-03] Cooling minimum: ▪ 5°C~18°C [2.8.4] [9-02] Cooling maximum: ▪ 18°C~22°C Control Define how the operation of the unit is controlled. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 205 Delta  T is the absolute value of the temperature difference between the leaving water and entering water. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 206 Modulation is enabled, the unit automatically calculates the desired leaving water temperature. These calculations are based on: ▪ the preset temperatures, or ▪ the desired weather-dependent temperatures (if weather-dependent is enabled) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 207 The shut off valve for the main leaving water temperature zone can close under these circumstances: INFORMATION During defrost operation, the shut-off valve is ALWAYS opened. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 208: Additional Zone

     190] and "11.5.3 Slope-offset curve" [  191]. Code Description [2.E] ▪ 2-points ▪ Slope-Offset 11.6.4 Additional zone Overview The following items are listed in the submenu: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 209  183]. Setpoint mode The setpoint mode of the additional zone can be independently set from the setpoint mode of the main zone. "Setpoint mode" [  200]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 210 Note: This value should be lower than [0‑01] as for high outdoor temperatures less warm water is required. Cooling WD curve Set weather-dependent cooling for the additional zone (if [3.4]=2): ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 211 2: Radiator The setting of the emitter type has an influence on the space heating setpoint range and the target delta T in heating as follows: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 212 External room thermostat,or Room thermostat. Ext thermostat type Only applicable in external room thermostat control. Also see "11.6.3 Main zone" [  199]. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 213: Space Heating/Cooling

    2-points ▪ Slope-Offset 11.6.5 Space heating/cooling INFORMATION Cooling is only applicable in case of reversible models. Overview The following items are listed in the submenu: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 214 While the unit is in operation, the status indicator will light up blue constantly. To set the space operation mode 1 Go to [4.1]: Space heating/cooling > Operation mode ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 215 If the outdoor temperature is between the Space heating off temperature and the Space cooling off temperature, the operation mode remains unchanged. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 216 The space operation only changes from heating to cooling when the room temperature rises above the desired cooling temperature added by the hysteresis value. ▪ Range: 1°C~10°C ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 217 In heating: a Additional LWT zone: Highest temperature b Main LWT zone: Lowest temperature c Mixing station ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 218 ON or OFF condition. Remark: Continuous pump operation requires more energy than sample or request pump operation. a Space heating/cooling control b Off c On d Pump operation ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 219 In this part of the menu it can be read out which type of unit is used: Code Description [4.6] [E‑02] Unit type: ▪ 0 Reversible ▪ 1 Heating only ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 220 6: 80% pump speed during sampling ▪ 7: 70% pump speed during sampling ▪ 8: 60% pump speed during sampling The maximum values depend on the unit type: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 221 Use this setting to compensate for possible heat losses of the building due to the evaporation of melted ice or snow. (e.g. in cold region countries). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 222: Tank

    Room frost protection [1.4] prevents the room from getting too cold. For more information about room frost protection, see "11.6.2 Room" [  194]. 11.6.6 Tank Overview The following items are listed in the submenu: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 223 When powerful operation is active, the risk of space heating/cooling and capacity shortage comfort problems is significant. In case of frequent domestic hot water operation, frequent and long space heating/cooling interruptions will happen. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 224 ▪ 4: Thursday ▪ 5: Friday ▪ 6: Saturday ▪ 7: Sunday [5.7.3] [2‑02] Start time [5.7.4] [2‑03] Tank setpoint: 60°C [5.7.5] [2‑04] Duration: 40~60 minutes ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 225 During disinfection of the water inside the domestic hot water heat exchanger coil by periodically heating storage tank specific temperature, DHW temperature can exceed this maximum temperature. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 226 When the keep-hot-function is enabled then the reheat of the tank could be sooner. Setpoint mode Code Description [5.B] Setpoint mode: ▪ Fixed ▪ Weather dependent ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 227 HP MAX Heat pump OFF temperature (T −[6-01]) HP OFF HP MAX Heat pump ON temperature (T −[6-00]) HP ON HP OFF Domestic hot water temperature ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 228: User Settings

    [7] User settings Space heating/cooling Tank [7.1] Language User settings [7.2] Time/date Information Installer settings [7.3] Holiday [7.4] Quiet [7.5] Electricity price [7.6] Gas price ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 229 ▪ Select On. 2 Set the first day of your holiday. — ▪ Go to [7.3.2]: From. ▪ Select a date. ▪ Confirm the changes. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 230 ▪ You have programmed a quiet mode schedule: During the night: Most quiet. During the day: Off to ensure the heating/cooling capacity of the system. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 231 INFORMATION Price value ranging from 0.00~990 valuta/kWh (with 2 significant values). INFORMATION If no schedule is set, the Electricity price for High is taken into account. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 232 Renewable heat incentive per kWh Calculation of the gas price Gas price=Actual gas price+(Incentive/kWh×0.9) Gas price=4.08+(5×0.9) Gas price=8.58 Calculation of the electricity price Electricity price=Actual electricity price+Incentive/kWh Electricity price=12.49+5 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 233: Information

    Reset the configuration settings stored in the MMI (user interface of the indoor unit). Example: Energy meterings, holiday settings. INFORMATION This does not reset the configuration settings and field settings of the indoor unit. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 234 Return water temperature [°C] Storage tank temperature [°C] Ambient temperature [°C] Leaving water temperature after storage tank [°C] Water pressure [bar] Water volume flow rate [l/min] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 235: Installer Settings

    [8.B] Piping diagram Real-time sensor and actuator information of the main system components 11.6.9 Installer settings Overview The following items are listed in the submenu: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 236 This setting is read only. Code Description [9.2.1] [E‑05] ▪ Integrated The backup heater will also be used for [E‑06] domestic hot water heating. [E‑07] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 237 When measuring the resistance value of each heater, you can set the exact heater capacity and this will lead to more accurate energy data. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 238 If the storage temperature setpoint is higher than 50°C and no auxiliary boiler is installed, Daikin recommends NOT to disable the backup heater second step because it will have a big impact on the required time for the unit to heat up the storage tank.
  • Page 239 The backup heater will ONLY assist if you increase the equilibrium temperature [5‑01] to the required ambient temperature you need to reach the higher setpoint. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 240 Malfunctioning main menu screen. To keep energy consumption low, we recommend to set Emergency to auto SH reduced/DHW off if the house is unattended for longer periods. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 241 Heat pump operation is NOT possible ▪ Cooling is NOT possible Code Description [9.5.2] [7-06] Activation of the Compressor forced off mode: ▪ 0: disabled ▪ 1: enabled ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 242 1 Heat pump domestic water heating mode (1=active, 0=not active) 2 Hot water request for heat pump (1=request, 0=no request) t Time [8-04]: Additional timer at [4-02]/[F-01] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 243 Only relevant for installations with water piping outdoors. This function tries to protect outdoor water piping from freezing. Code Description [9.7] [4-04] Water pipe freeze prevention: ▪ 2: Off (read only) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 244 Emergency mode. In case emergency mode is active, buffering with electrical heater is NOT possible in Forced on and Recommended on operation modes. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 245 Therefore, always enable the auto restart function. ▪ 3 Smart Grid: A Smart Grid is connected to the system ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 246 Yes: The extra energy from the photovoltaic panels is buffered in the storage tank, and in the space heating/cooling circuit (i.e. heat up or cool down the room). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 247 Limit when [9.9.1]=Continuous and [9.9.2]=Amp: Code Description [9.9.3] [5-05] Limit: Only applicable in case of full time current limitation mode. 0 A~50 A Limits when [9.9.1]=Inputs and [9.9.2]=Amp: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 248 In case power consumption control is ENABLED, the setting [4‑01] defines the priority of the electrical heaters depending on applicable limitation. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 249 ▪ 0 None: NOT installed ▪ 1 1/10kWh: Installed ▪ 2 1/kWh: Installed ▪ 3 10/kWh: Installed ▪ 4 100/kWh: Installed ▪ 5 1000/kWh: Installed ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 250 The average timer corrects the influence of ambient temperature variations. The weather-dependent setpoint calculation is done on the average outdoor temperature. The outdoor temperature is averaged over the selected time period. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 251: Averaging Time

    NOTICE Direct (SH) operation is only possible if space heating is turned ON. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 252 Range: 2°C~10°C (step: 1°C) The higher the value of [C‑04], the higher the accuracy of the switch-over between the heat pump system and the auxiliary boiler. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 253 Code Description [7.5.1] User settings > Electricity price > High [7.5.2] User settings > Electricity price > Medium ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 254 When power returns after a power supply failure, the auto restart function reapplies the user interface settings at the time of the power failure. Therefore, it is recommended to always enable the function. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 255 Unit is in heating operation and has been running for a few minutes ▪ Outdoor ambient temperature is low enough ▪ Temperature at the outdoor unit heat exchanger coil is low enough ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 256 1 Open the user interface panel and insert a USB memory stick. — 2 On the user interface, go to [9.N] Export MMI settings. 3 Select OK. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 257 Boiler off temperature (T +3+[7‑0D]) B Off HP tank heating ON temperature (Tank setpoint–[6‑00]) HP on HP! HP more efficient according to efficiency calculation for space heating ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 258 Range: 0 kW~63 kW (step: 1 kW) The capacity should be limited to the capacity provided by the heat pump. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 259 Equilibrium temperature: Outdoor temperature below which operation of the backup heater (and tank heating support in case of a bivalent system) is allowed. Range: –15°C~35°C ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 260 0 No : The system only has a main zone. ▪ 1 N/A ▪ 2 Yes: A bizone kit is installed in order to add an additional temperature zone. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 261 The speed of the main zone pump can be fixed with this setting. Code Description [9.P.4] [7-0B] Main zone pump fixed PWM: Fixed pump speed for main (mixed) zone. ▪ 20~95% (default: 95) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 262: Commissioning

    "To change the user permission level" [  166]. [B] User profile Installer settings Commissioning User profile Operation Malfunctioning 11.6.12 Operation Overview The following items are listed in the submenu: ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 263: Wlan

    See the installation manual of the WLAN cartridge. Router Field supply. Smartphone + app The ONECTA app needs to be installed on the user's smartphone. See: http://www.onlinecontroller.daikineurope.com/ ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 264 ONECTA app. [D.4] Remove from cloud: Remove the WLAN cartridge from the cloud. Code Description [D.4] Remove from cloud: ▪ ▪ ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 265 Connected to [WLAN_SSID] [D.6] Cloud connection: Read out the status of the connection to the cloud. Code Description [D.6] Cloud connection: ▪ Not connected ▪ Connected ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 266: Menu Structure: Overview User Settings

    (**) Only accessible by installer (***) Only applicable when WLAN is installed INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 267: Menu Structure: Overview Installer Settings

    Mixing valve turning time (*) Only applicable in Swedish language. INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 268: Commissioning

    12 Commissioning NOTICE General commissioning checklist. Next to the commissioning instructions in this chapter, a general commissioning checklist is also available on the Daikin Business Portal (authentication required). The general commissioning checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during commissioning and hand-over to the user.

  • Page 269: Precautions When Commissioning

    ▪ Between the local supply panel and the indoor unit ▪ Between the indoor unit and the valves (if applicable) ▪ Between the indoor unit and the room thermostat (if applicable) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 270: Checklist During Commissioning

    For a correct operating unit, it is important to check if the minimum flow rate is reached. If needed, modify the bypass valve setting. If operation is… Then the minimum required flow rate is… Cooling 10 l/min Heating/defrost 20 l/min ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 271: Air Purge Function

    Purging the air out of the unit with the manual air vent valves Performing a manual air purge Performing an automatic air purge Purging the air out of the unit with the manual air vent valves ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 272 3 In the menu, set Type = Manual. 4 Select Start air purge. 5 Select OK to confirm. Result: The air purge starts. It stops automatically when ready. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 273: Operation Test Run

    "To change — the user permission level" [  166]. 2 Go to [A.1]: Commissioning > Operation test run. 3 Select a test from the list. Example: Heating. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 274: Actuator Test Run

    For the backup heater test run, make sure that at least one of the two mixing valves of the unit is open during the test. Otherwise the thermal cut-out of the backup heater may be triggered. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 275: Underfloor Heating Screed Dryout

    If the outdoor ambient temperature and [4‑02] setting >  25°C the backup heater will perform the screed dryout and supply the leaving water without heat pump operation. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 276 The underfloor heating screed dryout function is active even if the user does NOT confirm emergency operation. ▪ During underfloor heating screed dryout, pump speed limitation [9‑0D] is NOT applicable. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 277 2 Press the left dial to open the menu structure and to: 1 View the status of sensors and actuators. — 2 Adjust the current program — ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 278: To Set Up Bivalent Heat Sources

    [C-02] set to 0. HINT: If field code [C-02] is set to 0 and no backup heater is connected, error UA 17 is output at AL 3 * ECH2O. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 279: Hand-Over To The User

    Show the user what to do for the maintenance of the unit. ▪ Explain about energy saving tips to the user as described in the operation manual. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 280: Maintenance And Service

    PCB. 14.2 Yearly maintenance 14.2.1 Yearly maintenance outdoor unit: overview Check the following at least once a year: ▪ Heat exchanger ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 281: Yearly Maintenance Outdoor Unit: Instructions

    OFF. WARNING If the internal wiring is damaged, it has to be replaced by the manufacturer, its service agent or similarly qualified persons. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 282 2 Switch box 2 Check if the red level indicator is visible. If NOT, add water to the storage tank (see "8.6.7 To fill the storage tank" [  125]). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 283: Troubleshooting

    MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 284: Solving Problems Based On Symptoms

    If an auxiliary boiler is connected correctly. directly to the tank, make sure that: ▪ the boiler is operating correctly. ▪ the boiler capacity is sufficient. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 285: Symptom: The Compressor Does Not Start (Space Heating Or Domestic Water Heating)

    Perform hydraulic balancing to assure that the flow is correctly distributed between the emitters. hydraulic balancing sufficient, change pump limitation settings ([9-0D] and [9-0E] if applicable). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 286: Symptom: The Pump Is Blocked

    If you cannot deblock the rotor of the pump with this method, you will need to disassemble the pump and turn the rotor by hand. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 287: Symptom: The Pump Is Making Noise (Cavitation)

    ▪ If the water keeps running out of the unit, close both the water inlet and outlet shut-off valves first and then contact your dealer. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 288: Symptom: The Space Is Not Sufficiently Heated At Low Outdoor Temperatures

    Increase the "space heating priority temperature" to activate backup heater operation at a higher outdoor temperature. [9.6.3]: Installer settings > Balancing > Priority temperature [5‑03] ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 289: Symptom: Tank Disinfection Function Is Not Completed Correctly (Ah-Error)

    Result: A short description of the error and the error code is displayed on the screen. 2 Press in the error screen. Result: A long description of the error is displayed on the screen. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 290: Error Codes: Overview

    A1-00 Zero cross detection problem A5-00 OU: High pressure peak cut / freeze protection problem AA-01 Backup heater overheated or BUH power cable not connected ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 291 OU: Malfunction of compressor input (CT) system H9-00 OU: Malfunction of outdoor air thermistor HC-00 Tank temperature sensor problem HC-01 Second tank temperature sensor problem ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 292 User interface communication problem U7-00 OU: Transmission malfunction between main CPU- INV CPU U8-02 Connection with room thermostat lost U8-03 No connection with room thermostat ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 293 If the software is not successfully updated then you must make sure that your USB device has the FAT32 format. INFORMATION The user interface will display how to reset an error code. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 294: Disposal

    Y3S Solenoid valve (hot gas bypass) Y4S Solenoid valve (liquid injection) To recover refrigerant when power is OFF 1 Make sure the stop valves are open. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 295: To Open The Stop Valves

    Electronic expansion valve c2 EEV coil c3 EEV magnet 1 Remove the EEV coil (c2). 2 Slide an EEV magnet (c3) over the expansion valve (c1). ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 296 3 Turn the EEV magnet anticlockwise to the fully open position of the valve. If you are not sure about what the open position is, turn the valve in its middle position so that refrigerant can pass. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 297: Recovery Mode - In Case Of 3N~ Models (7-Segments Display)

    7-segments display Start from the default situation. Select mode 2. Press and hold BS1 for 5 seconds. Select setting 9. Press BS2 9 times. Select value 2. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 298 Enter the value in the system. Press BS3 once. Confirm. Press BS3 once. Return to the default situation. Press BS1 once. = OFF, = ON, and = flashing. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 299 Result: The recovery mode is deactivated. The unit returns the electronic expansion valves to their initial state. INFORMATION Power OFF. When power is turned OFF and turned ON again, the recovery mode is deactivated automatically. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 300: Recovery Mode - In Case Of 1N~ Models (7-Leds Display)

    Press BS1 once. H1P keeps flashing, indicating that you are in a mode that does not allow compressor operation. = OFF, = ON, and = flashing. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 301: To Drain The Storage Tank

    To prepare draining when no optional fill and drain kit is available 1 Open the screw plug of the spillover connection. 2 Unplug the spillover connector. a Spillover connector b Screw plug ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 302 3 Insert the screw plug into the fill and drain kit and secure with the clip contained in the option kit. a Fill and drain kit b Screw plug ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 303: To Drain The Storage Tank With A Connected Pressureless Solar System

    2 Place an appropriate tray under the drain connection to collect water spillage. 3 Remove the clip and sealing plug. 4 Insert the fill and drain kit and secure with the clip. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 304 Sealing plug c Fill and drain kit 5 Open the valve of the fill and drain kit. 6 Switch the drain connection valve to standard position. ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 305: Technical Data

    Technical data 17 Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of the latest technical data is available on the Daikin Business Portal (authentication required). In this chapter 17.1...

  • Page 306: Service Space: Outdoor Unit

    17.1 Service space: Outdoor unit English Translation General General No top-side obstacle No top-side obstacle Top-side obstacle Top-side obstacle Wall height unrestricted Wall height unrestricted ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 307: Piping Diagram: Outdoor Unit

    Y1S Solenoid valve (4-way valve) Y2S Solenoid valve (low pressure bypass) Y3S Solenoid valve (hot gas bypass) Y4S Solenoid valve (liquid injection) Q1E Overload protector ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 308: Piping Diagram: Indoor Unit

    R3T Thermistor (Refrigerant liquid side) R4T Thermistor (Inlet water) R5T, R8T Thermistor (tank) R7T Thermistor (tank - water OUT) Screw connection Flare connection Quick coupling Brazed connection ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 309: Wiring Diagram: Outdoor Unit

    See note *** See note *** Only for *W1 models. Notes: Symbols: Live Neutral Protective earth Noiseless earth Field wiring Option Terminal strip Terminal Connector Connection ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 310 Magnetic relay (Y3S) Magnetic relay (Y4S) K6R~K84R (A1P) Magnetic relay K1M~K2M (A1P) Magnetic contactor L1R~L5R (A1P, A2P) Reactor Compressor motor Fan motor PS (A1P) Switching power supply ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 311 Printed circuit board (flash) BS1~BS4 (A1P) Push button switch C1~C4 (A1P, A2P) Capacitor DS1 (A1P) DIP switch Field fuse (field supply) F1U~F4U (A2P) Fuse (T 6.3 A / 250 V) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 312 Insulated Gate Bipolar Transistor (IGBT) Terminal strip Electronic expansion valve (main) Electronic expansion valve (injection) Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) Solenoid valve (hot gas bypass) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 313 Technical data Solenoid valve (liquid injection) Z1C~Z11C Noise filter (ferrite core) Z1F~Z6F (A1P, A2P) Noise filter ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 314: Wiring Diagram: Indoor Unit

     Safety thermostat  Safety thermostat Main LWT Main leaving water temperature  On/OFF thermostat (wired)  On/OFF thermostat (wired)  On/OFF thermostat (wireless)  On/OFF thermostat (wireless)  Ext. thermistor  External thermistor ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 315 # Domestic hot water pump # 2-way valve for cooling mode PC (A15P) * Power circuit Thermal protector backup heater # Safety thermostat Q*DI # Earth leakage circuit breaker ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 316 BUH option Backup heater option BUH option only for * Backup heater option only for * Bizone mixing kit Bizone mixing kit Continuous Continuous current ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 317 Power limitation digital inputs: 12 V Power limitation digital inputs: DC / 12 mA detection (voltage supplied 12 V DC / 12 mA detection (voltage by PCB) supplied by PCB) ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 318 Only for wireless On/OFF thermostat Only for wireless On/OFF thermostat (6) Backup heater power supply (6) Backup heater power supply Only for *** Only for *** SWB2 Switch box ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 319 Only for remote user interface 2 core 2×0.75 X15M: 11-12 A14P: P1-P2 user interface communication Only for LAN adapter 2 core 2×0.75 A13P: P1-P2 LAN adapter communication 4D142802 ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 320: Esp Curve: Indoor Unit

    Max. operating pressure (refrigerant circuit) s Total refrigerant charge (for information, see installation instructions for the outdoor heat pump unit) t Attention: Flammable refrigerant ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...
  • Page 321 Technical data u Further information on the refrigerant: See instructions v Part number w Revision ERRA08~12E + ELSH/X(B)12P30+50EG Installer reference guide Daikin Altherma 3 R MT ECH₂O 4P759885-1B – 2025.03...

  • Page 322: Glossary

    Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation.

  • Page 323: Field Settings Table

    1/18 Field settings table Applicable indoor units ELSH12P30E▲▼ ELSH12P50E▲▼ ELSHB12P30E▲▼ ELSHB12P50E▲▼ ELSX12P30E▲▼ ELSX12P50E▲▼ ELSXB12P30E▲▼ ELSXB12P50E▲▼ Notes (*1) *X* (*2) *H* (*3) (*4) EKECBUA3V (*5) EKECBUA6V (*6) EKECBUA9W BUH less (*7) 300L tank (*8) ▲ = 1, 2, 3, …, 9, A, B, C, …, Z  ▼  = , , 1, 2, 3, …, 9 4P717812-1 – 2022.11...
  • Page 324 2/18 Field settings table Breadcrumb Setting name Range, step Default value Room └─ Antifrost 1.4.1 [2-06] Activation 0: No 1: Yes 1.4.2 [2-05] Room setpoint 4~16°C, step: 1°C 8°C └─ Setpoint range 1.5.1 [3-07] Heating minimum 12~18°C, step: 1°C 12°C 1.5.2 [3-06] Heating maximum...
  • Page 325 3/18 Field settings table Breadcrumb Setting name Range, step Default value 2.8.2 [9-00] Heating maximum 37~65, step: 1°C [2-0C]=2: 65°C [2-0C]≠2: 55°C 2.8.3 [9-03] Cooling minimum 5~18°C, step: 1°C 7°C 2.8.4 [9-02] Cooling maximum 18~22°C, step: 1°C 22°C Main zone [C-07] Control 0: Leaving water...
  • Page 326 4/18 Field settings table Breadcrumb Setting name Range, step Default value [0-06] High ambient temp. for LWT add zone cooling WD curve. 25~43°C, step: 1°C 35°C [0-07] Low ambient temp. for LWT add zone cooling WD curve. 10~25°C, step: 1°C 20°C Additional zone [2-0D]...
  • Page 327 5/18 Field settings table Breadcrumb Setting name Range, step Default value [2-06] Antifrost 0: No 1: Yes Tank [6-0A] Comfort setpoint 30~[6-0E]°C, step: 1°C 60°C [6-0B] Eco setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C [6-0C] Reheat setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C [6-0D] Heat up mode...
  • Page 328 6/18 Field settings table Breadcrumb Setting name Range, step Default value 7.5.3 0,00~990/kWh 1/kWh User settings Gas price 0,00~990/kWh 0,00~290/MBtu 1,0/kWh Installer settings └─ Configuration wizard └─ System 9.1.3.2 [E-03] BUH type 0: no heater (*7) 2: 3V (*4) 3: 6V (*5) 4: 9W (*6) 9.1.3.3 [E-05]...
  • Page 329 7/18 Field settings table Breadcrumb Setting name Range, step Default value 9.1.6 [1-00] Low ambient temp. for LWT main zone heating WD curve. -40~5°C, step: 1°C -10°C 9.1.6 [1-01] High ambient temp. for LWT main zone heating WD curve. 10~25°C, step: 1°C 15°C 9.1.6 [1-02]...
  • Page 330 8/18 Field settings table Breadcrumb Setting name Range, step Default value 9.1.B.2 [6-0A] Comfort setpoint 30~[6-0E]°C, step: 1°C 60°C 9.1.B.3 [6-0B] Eco setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C 9.1.B.4 [6-0C] Reheat setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C 9.1.B.5 [6-08] Hysteresis 2~20°C, step: 1°C 10°C └─...
  • Page 331 9/18 Field settings table Breadcrumb Setting name Range, step Default value └─ Balancing 9.6.1 [5-02] Space heating priority 0: Disabled 1: Enabled 9.6.2 [5-03] Priority temperature -15~35°C, step: 1°C 0°C 9.6.3 [5-04] Offset BSH setpoint 0~20°C, step: 1°C 10°C 9.6.4 [8-02] Anti-recycle timer 0~10 hour, step: 0,5 hour...
  • Page 332 10/18 Field settings table Breadcrumb Setting name Range, step Default value 9.9.D [4-01] Priority heater 0: None 1: Booster Heater 2: Backup Heater 9.9.F [7-07] BBR16 activation* 0: No *BBR16 settings are only visible when the language of the user 1: Yes interface is set to Swedish.
  • Page 333 11/18 Field settings table Breadcrumb Setting name Range, step Default value [0-02] High ambient temp. for LWT add zone heating WD curve. 10~25°C, step: 1°C 15°C [0-03] Low ambient temp. for LWT add zone heating WD curve. -40~5°C, step: 1°C -10°C [0-04] Leaving water value for high ambient temp.
  • Page 334 12/18 Field settings table Breadcrumb Setting name Range, step Default value [1-0C] What is the desired delta T in heating for the additional zone? 3~12°C, step: 1°C [2-0C] ≠ 2 (Radiator) 5°C [2-0C] = 2 (Radiator) 10°C [1-0D] What is the desired delta T in cooling for the main zone? 3~10°C, step: 1°C 5°C [1-0E]...
  • Page 335 13/18 Field settings table Breadcrumb Setting name Range, step Default value [4-00] What is the BUH operation mode? 0: Restricted 1: Allowed 2: Only DHW [4-01] Which electric heater has priority? 0: None 1: Booster Heater 2: Backup Heater [4-02] Below which outdoor temperature is heating allowed? 14~35°C, step: 1°C 35°C...
  • Page 336 14/18 Field settings table Breadcrumb Setting name Range, step Default value [5-0C] What is the requested limit for DI4? 0~20 kW, step: 0,5 kW 20 kW [5-0D] Backup heater voltage 0: 230V, 1~ (*4, *5, *7) 2: 400V, 3~ (*6) [5-0E] [6-00] The temperature difference determining the heat pump ON...
  • Page 337 15/18 Field settings table Breadcrumb Setting name Range, step Default value [7-0D] Hysteresis value used to control the tank bivalent in case it’s 2~20, step 0,5 °C supporting space heating operation 4 °C [7-0E] Offset on the setpoint to determine when the tank is high enough 2~22, step 0,5 °C to go the excess state 7 °C...
  • Page 338 16/18 Field settings table Breadcrumb Setting name Range, step Default value [9-0D] Pump speed limitation 0~8, step:1 0 : No limitation 1~4 : 90~60% pump speed 5~8 : 90~60% pump speed during sampling 6 80% pump speed [9-0E] [C-00] Domestic heating water priority. 0: Solar priority 1: Heat pump priority [C-01]...
  • Page 339 17/18 Field settings table Breadcrumb Setting name Range, step Default value [D-08] Is an external kWh meter used for power measurement? 0: No 1: 0,1 pulse/kWh 2: 1 pulse/kWh 3: 10 pulse/kWh 4: 100 pulse/kWh 5: 1000 pulse/kWh [D-09] Is an external kWh meter used for power measurement, kWh 0: No meter used for smart grid? 1: 0,1 pulse/kWh...
  • Page 340 18/18 Field settings table Breadcrumb Setting name Range, step Default value [F-09] Pump operation during flow abnormality. 0: Disabled 1: Enabled [F-0A] [F-0B] Close shut-off valve during thermo OFF? 0: No 1: Yes [F-0C] Close shut-off valve during cooling? 0: No 1: Yes [F-0D] What is the pump operation mode?
  • Page 344 4P759885-1B 2025.03...

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