Page 1 Installer reference guide Daikin Altherma 3 H HT ECH₂O https://daikintechnicaldatahub.eu EPRA14DAV3 ETSH16P30EF EPRA16DAV3 ETSH16P50EF EPRA18DAV3 ETSHB16P30EF ETSHB16P50EF EPRA14DAW1 ETSX16P30EF EPRA16DAW1 ETSX16P50EF EPRA18DAW1 ETSXB16P30EF ETSXB16P50EF...
Page 2: Table Of Contents
Power limitation activated by digital inputs ....................62 6.6.3 Power limitation process..........................63 6.6.4 BBR16 power limitation..........................64 Setting up an external temperature sensor ........................64 Installer reference guide EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 3 To connect the WLAN cartridge (delivered as accessory)................140 9.3.15 To connect the solar input ..........................140 9.3.16 To connect the DHW output .......................... 141 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 4 Symptom: The pressure relief valve opens....................256 14.3.8 Symptom: The water pressure relief valve leaks................... 256 14.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........... 257 Installer reference guide EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 5 Wiring diagram: Indoor unit ............................280 16.6 ESP curve: Indoor unit..............................286 16.7 Name plate: Indoor unit ..............................286 17 Glossary 18 Field settings table EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 6: About The Documentation
Format: Paper (in the box of the indoor unit) + Digital files on http:// www.daikineurope.com/support-and-manuals/product-information/ Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer. The original documentation is written in English. All other languages are translations. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O...
Page 7: Meaning Of Warnings And Symbols
About the documentation Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required).
Page 8: Installer Reference Guide At A Glance
General safety precautions Safety instructions that you must read before installing Specific installer safety instructions About the box How to unpack the units and remove their accessories EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 10: General Safety Precautions
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. 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
Make sure the field piping and connections are NOT subjected to stress. WARNING During tests, NEVER pressurise the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
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: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 16: Specific Installer Safety Instructions
The appliance shall be stored so as to prevent mechanical damage and in a well- ventilated room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 17 Specific installer safety instructions WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. Mounting the outdoor unit (see "7.3 Mounting the outdoor unit" [ 76]) WARNING Fixing method of the outdoor unit MUST be in accordance with the instructions from this manual.
Page 18 ▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 19 This maximum allowable hot water temperature shall be selected according to the applicable legislation. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 20 If yes, make sure that the room where you want to purge air is sufficiently ventilated. Reason: Refrigerant might leak into the water circuit, and subsequently into the room when you purge air from the heat emitters or collectors. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 21: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 22 After unpacking, carry the unit using the slings attached to the unit. See also: ▪ "4.2.2 To unpack the outdoor unit" [ 23] ▪ "7.3.4 To install the outdoor unit" [ 77] ±150 4× EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 23: To Unpack The Outdoor Unit
About the box 4.2.2 To unpack the outdoor unit EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 24: To Remove The Accessories From The Outdoor Unit
▪ Bring the packed unit as close as possible to its final installation position to prevent damage during transport. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 25: To Unpack The Indoor Unit
Drain pan hose clamp l Cable fixation for strain relief m Cable tie n Switch box metal insert o Screw for switch box metal insert EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 26: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 27: About The Units And Options
Explanation European hydro-split outdoor pair heat pump High water temperature – ambient zone 2 (see operation range) Refrigerant R32 Capacity class Model series Power supply EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 28: 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 EPRA14 EPRA16 EPRA18 ETSH/X16 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 29: Possible Options For The Outdoor Unit
As an option the remote indoor sensor can be installed to measure the room temperature on another location. For installation instructions, see the installation manual of the remote indoor sensor and addendum book for optional equipment. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 30 Bizone kit (EKMIKPOA or EKMIKPHA) You can install an optional bizone kit. For installation instructions, see the installation manual of the bizone kit. See also: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 31 For installation instructions, see the installation manual of the recirculation kit. Dirt Separator (156021 or 156023) It is recommended to install a dirt separator in the system. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 32 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 33: Application Guidelines
Setting up the storage tank ▪ Setting up the energy metering ▪ Setting up the power consumption control ▪ Setting up an external temperature sensor EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 34: Setting Up The Space Heating/Cooling System
Automatic. NOTICE An overpressure bypass valve can be integrated in the system. Keep in mind that this valve might not be shown on the illustrations. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 35: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 36 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 37 ON/ ▪ #: [2.A] OFF condition. No separation between ▪ Code: [C-05] heating or cooling demand. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 38 ▪ 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 39: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 40 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 41 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 42 Code: [C-07] Number of water temperature zones: 0 (Single zone): Main ▪ #: [4.4] ▪ Code: [7-02] Benefits Compared with heat pump convectors for one room: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 43 INFORMATION To increase comfort and performance, we recommend to install the valve kit option EKVKHPC on each heat pump convector. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 44: 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: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 45 D Main leaving water temperature zone E Room 3 a Heat pump convectors (+ controllers) b Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 46 (X12M/19 and X12M/22). The indoor unit will only supply the desired additional leaving water temperature when there is an actual demand. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 47 If the main zone must be shut off during cooling mode to prevent condensation on the floor, set it accordingly. "Bizone kit" [ 229] for more information on configuration of the bizone kit. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 48: Setting Up Bivalent Heat Sources
OR ▪ external room thermostat control. ▪ Space heating can be done by: The indoor unit An auxiliary boiler (field supply) connected to the system EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 49 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 50 K1A Auxiliary relay for activation of indoor unit (field supply) K2A Auxiliary relay for activation of boiler (field supply) Indoor Indoor unit Auto Automatic Boiler Boiler EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 51: Setting Up An Indirect Auxiliary Heat Source For Domestic Hot Water And Space Heating
A Main leaving water temperature zone B One single room a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) b Auxiliary boiler (field supply) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 52: Setting Up A Solar System Via Drainback Connection
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 storage tank does NOT exceed 95°C. To do so: Set the desired water temperature via the auxiliary boiler controller to maximum 95°C.
Page 53: Setting Up A Solar System Via Bivalent Heat Exchanger
6.3.4 Setting up a solar system via bivalent heat exchanger Setup 1 Integrate the solar system as follows: a Bivalent heat exchanger IN (red) b Bivalent heat exchanger OUT (blue) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 54: Setting Up An Electric Backup Heater
Determining the DHW consumption Answer the following questions and calculate the DHW consumption (equivalent hot water volume at 40°C) using typical water volumes: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 55 If energy prices are lower during the night, we recommend to heat up the storage tank during the night. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 56: Setup And Configuration - Storage Tank
For more information, see "10 Configuration" [ 143]. ▪ You can program a schedule to control the DHW pump via the user interface. For more information, see the user reference guide. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 57: Dhw Pump For Disinfection
You can read out the energy data: Per month Per year INFORMATION The calculated produced heat and consumed energy are an estimation, the accuracy cannot be guaranteed. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 58: Produced Heat
6.5.3 Normal kWh rate power supply General rule One power meter that covers the entire system is sufficient. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 59 The electrical meter cannot easily be installed in the electrical cabinet. 230 V and 400 V three-phase grids are combined (very uncommon), because of technical limitations of power meters. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 60: Preferential Kwh Rate Power Supply
Power meter (L d Power meter (L e Fuse (L f Fuse (L g Outdoor unit (L h Indoor unit (L i Backup heater (L EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 61: 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. Power input EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 62: 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 63: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 64: Bbr16 Power Limitation
You can connect one external temperature sensor. It measures the indoor or outdoor ambient temperature. We recommend to use an external temperature sensor in the following cases: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 65 To protect the outdoor unit, the internal sensor of the outdoor unit is always used. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 66: Unit Installation
Mind the spacing guidelines. See "16.1 Service space: Outdoor unit" [ 272]. NOTICE ▪ Do NOT stack the units on each other. ▪ Do NOT hang the unit on a ceiling. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 67 This is to prevent corrosion caused by high levels of salt in the air, which might shorten the life of the unit. Install the outdoor unit away from direct sea winds. Example: Behind the building. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 68 WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O...
Page 69: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 70: Opening And Closing The Units
Precise water piping length can be determined using the Hydronic Piping Calculation tool. The Hydronic Piping Calculation tool is part of the Heating Solutions Navigator which can be reached via https://professional.standbyme.daikin.eu. Please contact your dealer if you have no access to Heating Solutions Navigator.
Page 71: To Open The Outdoor Unit
Transportation stays (2×) and washers (2×) b Transportation stay (1×) Prerequisite: Open the switch box cover. See "7.2.2 To open the outdoor unit" [ 71]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 72: To Close The Outdoor Unit
5 Remove and discard the transportation stay (b). 7.2.4 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 73: To Open The Indoor Unit
1 Remove the user interface panel. Open the hinges at the top and slide the interface panel downwards. 2 Remove the switch box cover. NOTICE Do NOT damage or remove the foam sealing of the switch box. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 74: To Lower The Switch Box Of The Indoor Unit And Remove The Top Cover
Prerequisite: The user interface panel has been removed. 1 Loosen the screws. 2 Lift up the switch box. 2× 3 Lower the switch box. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 75 5 If necessary, remove the top cover. This is necessary in the following cases: ▪ Connecting water piping ▪ Connecting BIV or DB-kit ▪ Connecting backup heater EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 76: To Close The Indoor Unit
Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise. Fix the unit securely by means of foundation bolts in accordance with the foundation drawing. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 77: To Install The Outdoor Unit
Make sure not to cover the drain hole in the bottom plate of the unit. 7.3.4 To install the outdoor unit 1 Carry the unit by its slings, and put it onto the installation structure. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 78: To Provide Drainage
Install the unit on a base to make sure that there is proper drainage in order to avoid ice accumulation. ▪ Prepare a water drainage channel around the foundation to drain waste water away from the unit. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 79 O-ring (delivered as accessory) c Drain plug (delivered as accessory) d Hose (field supply) NOTICE O-ring. Make sure the O-ring is installed correctly to prevent leakage. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 80: To Install The Discharge Grille
4 Align and attach the left side. 5 Align and attach the middle part. 6 Align and attach the right side. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 81: To Remove The Discharge Grille, And Put The Grille In Safety Position
80] ▪ "7.3.7 To remove the discharge grille, and put the grille in safety position" [ 81] 1 Remove the upper part of the discharge grille. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 82 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 83: To Prevent The Outdoor Unit From Falling Over
7.4 Mounting the indoor unit 7.4.1 About mounting the indoor unit Typical workflow Mounting the indoor unit typically consists of the following stages: Installing the indoor unit. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 84: Precautions When Mounting The Indoor Unit
Ensure that the water level cannot mount above the overspill. 6 Connect the drain pan hose to the drain pan connection and connect to an appropriate drain. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 85 Ensure that any steam or water that may escape is drained in a frost-protected, safe and observable manner. a Pressure relief valve EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 86: Piping Installation
Inappropriate tooling will cause damage to the pipes. ▪ Insulation. Insulate up to the base of the heat exchanger. ▪ Freeze. Protect against freezing. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 87 Water temperature. All installed piping and piping accessories (valve, connections,…) MUST withstand the following temperatures: INFORMATION The following illustration is an example and might NOT match your system layout. 89°C 75°C 75°C EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 88 See "6.4.4 DHW pump for instant hot water" [ 56]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 89: To Check The Water Volume And Flow Rate
NOT be displayed on the user interface. In this case, the minimum flow rate can be checked by way of the pump test (check that the user interface does NOT display error 7H). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 90: Connecting Water Piping
Deformation of the piping can cause malfunctioning of the unit. Outdoor unit 1 Connect the shut-off valve (with integrated filter) to the outdoor unit water inlet, using thread sealant. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 91 Do NOT exceed the maximum tightening torque (Thread size 1", 25-30 N•m). To avoid damage, apply the necessary countertorque with a suitable tool. ≤Ø7 mm EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 92 5 Connect the domestic hot water in and out pipes to the indoor unit. Do NOT exceed the maximum tightening torque (Thread size 1", 25-30 N•m). To avoid damage, apply the necessary countertorque with a suitable tool. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 93 7 Support the water piping. For rearward facing connections: Support hydraulic lines suitably according to the spatial conditions. This is valid for all water pipes. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 94 A pressure relief valve (field supply) with an opening pressure of maximum 10 bar (=1 MPa) must be installed on the domestic cold water inlet connection in accordance with the applicable legislation. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 95: To Connect A Pressure Vessel
1 Connect a hose with a non-return valve (1/2") and an external manometer (field supply) to a water tap and the fill and drain valve. Secure the hose against slipping off. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 96 8 Close the fill and drain valve and remove the hose with non-return valve only after air purging is performed and the system is completely filled. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 97: To Protect The Water Circuit Against Freezing
As a result, the hydraulic components might freeze up after all. Take preventive actions to ensure a minimal exposure of the glycol to air. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 98 ▪ When water is at standstill inside the system, the system is very likely to freeze and get damaged. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 99 In other circumstances (example: when there is a pump failure): The normally closed valves remain open. If the freeze protection valves open, the water from inside the house is also drained. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 100: To Fill The Heat Exchanger Inside The Storage Tank
1 Connect a hose with non-return valve (1/2") to the drainback connection. 2 Fill the storage tank until water spills from the spillover connection. 3 Remove the hose. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 101: To Insulate The Water Piping
8.2.9 To insulate the water piping The piping in the complete water circuit MUST be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 102 The Hydronic Piping Calculation tool is part of the Heating Solutions Navigator which can be reached via https://professional.standbyme.daikin.eu. Please contact your dealer if you have no access to Heating Solutions Navigator. This recommendation ensures good operation of the unit, however, local regulations may differ and shall be followed.
Page 103: Electrical Installation
▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 104: Guidelines When Connecting The Electrical Wiring
Stranded conductor wire b Round crimp-style terminal ▪ Use the following methods for installing wires: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 105: About Electrical Compliance
Equipment complying with EN/IEC 61000‑3‑12 (European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase.). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 106: About Preferential Kwh Rate Power Supply
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 107: Connections To The Outdoor Unit
Drain tube heater cable Connection for power saving function (only for V3 models) Air thermistor cable "9.2.2 To reposition the air thermistor on the outdoor unit" [ 114]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 108: To Connect The Electrical Wiring To The Outdoor Unit
▪ 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. — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 109 ▪ Connect the wires to the terminal block (make sure the numbers match with the numbers on the indoor unit) and the earth screw. ▪ Fix the cable with a cable tie. Wires: (3+GND)×1.5 mm² — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 110 ▪ Fix the cable with cable ties. Wires: (2+GND)×0.75 mm². Wiring must be double insulated. Maximum power allowed for drain tube heater = 115 W (0.5 A) — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 111 ▪ 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. — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 112 ▪ Connect the wires to the terminal block (make sure the numbers match with the numbers on the indoor unit) and the earth screw. ▪ Fix the cable with a cable tie. Wires: (3+GND)×1.5 mm² — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 113 ▪ Fix the cable with cable ties. Wires: (2+GND)×0.75 mm². Wiring must be double insulated. Maximum power allowed for drain tube heater = 115 W (0.5 A) — EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 114: To Reposition The Air Thermistor On The Outdoor Unit
9.2.2 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. Click EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 115: Connections To The Indoor Unit
Maximum running current: 100 mA For the main zone: ▪ [2.9] Control ▪ [2.A] Thermostat type For the additional zone: ▪ [3.A] Thermostat type ▪ [3.9] (read-only) Control EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 116 ▪ Installation manual of the remote indoor sensor ▪ Addendum book for optional equipment Wires: 2×0.75 mm² [9.B.1]=2 (External sensor = Room) [1.7] Room sensor offset EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 117: To Connect The Electrical Wiring To The Indoor Unit
To have easier access to the switch box itself and the routing of cables the switch box can be lowered (see "7.2.5 To open the indoor unit" [ 73]). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 118 All cables which will be connected to the switch box of the ECH O must be fixed by strain relief. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 119: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 120 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 121: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 122 Z less than or equal to Z Connect the backup heater power supply as follows: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 123 1N~, 50 Hz 230 V AC Model (power supply) Connections to backup heater power supply *3V (3V: 1N~ 230 V) SWB2 Q1DI 1N~, 50 Hz 230 V AC EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 124: To Connect The Backup Heater To The Main Unit
1 Open the following (see "7.2.5 To open the indoor unit" [ 73]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 125: To Connect The Shut-Off Valve
2 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 126: To Connect The Electricity Meters
2 Switch box 3 Switch box cover 4 Top cover 2 Connect the electricity meters cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 127: To Connect The Domestic Hot Water Pump
3 Switch box cover 4 Top cover 2 Connect the domestic hot water pump cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 128: To Connect The Alarm Output
2 Switch box 3 Switch box cover 4 Top cover 2 Connect the alarm output cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 129: To Connect The Space Cooling/Heating On/Off Output
3 Switch box cover 4 Top cover 2 Connect the space cooling/heating ON/OFF output cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 130: To Connect The Changeover To External Heat Source
3 Switch box cover 4 Top cover 2 Connect the changeover to external heat source cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 131: To Connect The Power Consumption Digital Inputs
"7.2.5 To open the indoor unit" [ 73]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 2 Install the switch box metal insert. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 132 Electrical installation 3 Connect the power consumption digital inputs cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 133: To Connect The Safety Thermostat (Normally Closed Contact)
2 Connect the safety thermostat (normally closed) cable to the appropriate terminals as shown in the illustration below. Note: The jumper wire (factory-mounted) must be removed from the respective terminals. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 134: To Connect A Smart Grid
9.3.13 To connect a Smart Grid This topic describes 2 possible ways to connect the indoor unit to a Smart Grid: ▪ In case of low voltage Smart Grid contacts EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 135 S4S Smart Grid pulse meter /S10S Low voltage Smart Grid contact 1 /S11S Low voltage Smart Grid contact 2 1 Connect the wiring as follows: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 136 Contact sides of relays e Jumper (factory-mounted). If you also connect a safety thermostat (Q4L), replace the jumper with the safety thermostat wires. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 137 2 Loosen the cables connected to the terminal of the Smart Grid relay kit (EKRELSG) and remove the terminal. 3 Install the components of the Smart Grid relay kit as follows: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 138 3 4 5 6 23 24 25 X 5M X12M.25 X12M.23 X15M.3 X15M.4 X12M.25 X12M.24 X15M.5 X15M.6 4 Connect the low voltage wiring as follows: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 139 X 2M 6 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" [ 117]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 140: To Connect The Wlan Cartridge (Delivered As Accessory)
1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 2 Connect the solar input cable as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 141: To Connect The Dhw Output
1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 2 Connect the DHW signal cable as shown in the illustration below. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 142 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" [ 117]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 143: Configuration
First time – Configuration wizard. When you turn ON the user interface for the first time (via the unit), the configuration wizard starts to help you configure the system. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 144: 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. Installer 5678 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 145 4 Turn the left dial to select the second part of the setting 01 15 5 Turn the right dial to modify the value from 15 to 20. 01 20 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 146: To Connect The Pc Cable To The Switch Box
You can find a short overview of the settings in the configuration here. All the settings can also be adjusted in the settings menu (use the breadcrumbs). For the setting… Refer to… Language [7.1] Time/date [7.2] EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 147 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] Additional zone (only if [4.4]=1) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 148: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 149: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 150 Installed heat emitter type: Underfloor heating Fancoil unit Radiator Leaving water temperature setpoint EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 151: Main Menu Screen
Shows the applicable symbol of your unit. cooling Put the unit in heating mode or cooling mode. You cannot change the mode on heating only models. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 152: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 153: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 154: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 155 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 156 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 157 The schedule name can contain up to 15 characters. 5 Confirm the new name. INFORMATION Not all schedules can be renamed. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 158: Weather-Dependent Curve
See "10.4.4 Using weather-dependent curves" [ 161]. 10.4.2 2-points curve Define the weather-dependent curve with these two setpoints: ▪ Setpoint (X1, Y2) ▪ Setpoint (X2, Y1) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 159: Slope-Offset Curve
Examples Weather-dependent curve when slope is selected: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 160 The icon corresponds to the heat emitter for that zone: ▪ : Underfloor heating ▪ : Fan coil unit ▪ : Radiator ▪ : Storage tank EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 161: Using Weather-Dependent Curves
Go to … Main zone – Heating [2.5] Main zone > Heating WD curve Main zone – Cooling [2.6] Main zone > Cooling WD curve EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 162 ↑ Cold Cold ↑ ↑ ↑ ↑ Cold ↓ ↑ ↓ ↑ — ↓ — ↓ Cold ↑ ↓ ↑ ↓ ↓ ↓ ↓ ↓ EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 163: Settings Menu
No: Room temperature is directly controlled by the user. ▪ Yes: Room temperature is controlled by a schedule and can be modified by the user. Heating schedule Applicable for all models. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 164 Antifrost function via the backup heater. If the backup heater is not allowed for room frost protection during a U4 error, the room Antifrost setting MUST be disabled. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 165 Room frost protection is guaranteed by the normal logic. ▪ The external room thermostat is "Thermo ON" In case of 2 leaving water temperature zones: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 166 NOTICE When adjusting the room temperature ranges, all desired room temperatures are also adjusted to guarantee they are between the limits. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 167: Main Zone
[9-0A] Heating comfort setpoint ▪ [3-07]~[3-06]°C [1.9.2] [9-0B] Cooling comfort setpoint ▪ [3-09]~[3-08]°C 10.5.3 Main zone Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 168 Define a heating temperature schedule for the main zone via [2.2] Heating schedule. "10.3.7 Schedule screen: Example" [ 154]. Cooling schedule Define a cooling temperature schedule for the main zone via [2.3] Cooling schedule. "10.3.7 Schedule screen: Example" [ 154]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 169 10°C. Heating WD curve Set weather-dependent heating for the main zone (if [2.4]=1 or 2): EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 170 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): EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 171 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 172 Example underfloor heating: 40–5/2=37.5°C To compensate, you can: ▪ Increase the weather-dependent curve desired temperatures [2.5]. ▪ Enable leaving water temperature modulation and increase the maximum modulation [2.C]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 173 Heating maximum: ▪ [2‑0C]=2 (emitter type main zone = radiator) 37°C~70°C ▪ 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 174 Leaving water temperature: Delta T In heating for the main zone, the target delta T (temperature difference) depends on the selected emitter type for the main zone. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 175 Additionally, also the desired leaving water temperature must be configured: if Modulation is enabled, the unit automatically calculates the desired leaving water temperature. These calculations are based on: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 176 1 leaving water temperature zone, connect the shut-off valve to the heating/cooling output. The shut off valve for the main leaving water temperature zone can close under these circumstances: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 177: Additional Zone
▪ 1 Yes: closes when the space operation mode is cooling. 10.5.4 Additional zone Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 178 154]. Setpoint mode The setpoint mode of the additional zone can be independently set from the setpoint mode of the main zone. "Setpoint mode" [ 169]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 179 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): EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 180 [9‑05]~[9‑06] [1‑0C] 0: Underfloor Maximum 55°C Variable (see [3.B.1]) heating 1: Fancoil unit Maximum 55°C Variable (see [3.B.1]) 2: Radiator Maximum 70°C Fixed 10°C EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 181 (X12M/19) ▪ 2: 2 contacts. Connected to 2 digital inputs (X12M/20 and X12M/19) Leaving water temperature: Delta T For more information, see "10.5.3 Main zone" [ 167]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 182: Space Heating/Cooling
[4.9] Pump outside range [4.A] Increase around 0°C [4.B] Overshoot [4.C] Antifrost About space operation modes Your unit can be a heating or a heating/cooling model: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 183 To restrict automatic changeover according to a schedule Conditions: You set the space operation mode to Automatic. 1 Go to [4.2]: Space heating/cooling > Operation mode schedule. 2 Select a month. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 184 Besides the desired heating/cooling room temperature, the installer sets a hysteresis value (e.g. when in heating, this EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 185 INFORMATION Mixing station. If your system layout contains 2 LWT zones, you need to install a mixing station in front of the main LWT zone. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 186 Make sure you set the emitter types for the main zone [2.7] and for the additional zone [3.7] correctly in accordance with the connected emitter. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 187 Sample is ONLY available in leaving water temperature control. a Space heating/cooling control b Off c On d LWT temperature e Actual f Desired g Pump operation EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 188 Possible values: see below. [4.8.2] [9-0D] Restriction: Only displayed when the bizone kit (EKMIKPOA or EKMIKPHA) is installed. Pump limitation Additional zone Possible values: see below. Possible values: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 189 The maximum values depend on the unit type: [9-0D]=0 [9-0D]=1/5 a (kPa) a (kPa) b (l/min) b (l/min) [9-0D]=2/6 [9-0D]=3/7 a (kPa) a (kPa) b (l/min) b (l/min) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 190 0: No ▪ 1: increase 2°C, span 4°C ▪ 2: increase 4°C, span 4°C ▪ 3: increase 2°C, span 8°C ▪ 4: increase 4°C, span 8°C EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 191: Tank
If powerful operation is active, will be shown on the home screen. To activate powerful operation EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 192 The disinfection function settings MUST be configured by the installer according to the applicable legislation. Code Description [5.7.1] [2‑01] Activation: ▪ 0: No ▪ 1: Yes EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 193 Disinfection mode. Even if you turn OFF tank heating operation ([C.3]: Operation > Tank), disinfection mode will remain active. However, if you turn it OFF while disinfection is running, an AH error occurs. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 194 Code Description [5.9] [6-00] Heat pump ON hysteresis ▪ 2°C~40°C Setpoint mode Code Description [5.B] Setpoint mode: ▪ Fixed ▪ Weather dependent EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 195 Maximum heat pump temperature at sensor in storage tank HP MAX Heat pump OFF temperature (T −[6-01]) HP OFF HP MAX Heat pump ON temperature (T −[6-00]) HP ON HP OFF EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 196: User Settings
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 Language Code Description [7.1] Language EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 197 Confirm the changes. 3 Set the last day of your holiday. — ▪ Go to [7.3.3]: Till. ▪ Select a date. ▪ Confirm the changes. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 198 Then you can do the following: 1 Go to [7.4.1]: User settings > Quiet > Mode. 2 Select Most quiet. Advantage: The outdoor unit runs in its most quiet level. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 199 2 Program the selection using the scheduling screen. You can set — the High, Medium and Low electricity prices according to your electricity supplier. 3 Confirm the changes. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 200 Gas price=8.58 Calculation of the electricity price Electricity price=Actual electricity price+Incentive/kWh Electricity price=12.49+5 Electricity price=17.49 Price Value in breadcrumb Gas: 4.08 /kWh [7.6]=8.6 Electricity: 12.49 /kWh [7.5.1]=17 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 201: Information
INFORMATION This does not reset the configuration settings and field settings of the indoor unit. Code Description [8.A] Reset the MMI EEPROM to factory default EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 202 Water volume flow rate [l/min] Possible read-out information In menu… You can read out… [8.1] Energy data Produced energy, consumed electricity, and consumed gas, energy flow diagram EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 203: Installer Settings
[8.B] Piping diagram Real-time sensor and actuator information of the main system components 10.5.9 Installer settings Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 204 This setting is read only. Code Description [9.2.1] [E‑05] ▪ Integrated [E‑06] The backup heater will also be used for domestic hot water heating. [E‑07] EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 205 When measuring the resistance value of each heater, you can set the exact heater capacity and this will lead to more accurate energy data. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 206 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 207 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 208 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 209 If NOT set correctly, the liquid in the piping can freeze. Code Description [E-0D] Glycol Filled system: Is the system filled with glycol? ▪ 0: No ▪ 1: Yes EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 210 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] EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 211 Range: 0~95 minutes Water pipe freeze prevention Only relevant for installations with water piping outdoors. This function tries to protect outdoor water piping from freezing. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 212 In case of room buffering, the room will heat up or cool down to the comfort setpoint. In case of tank buffering, the tank will heat up to the maximum tank temperature. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 213 Restriction: Only applicable if [9.8.4] is NOT set to Smart grid. Allow pump: ▪ 0 No: Pump is forced off ▪ 1 Yes: No limitation EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 214 See also below table (Smart Grid operation modes). [9.8.6] Restriction: Only applicable if [9.8.4]=Smart grid. To set if electrical heaters are allowed. Allow electrical heaters: ▪ ▪ EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 215 2 Inputs: Enabled: You can set up to four different power limitation values (in A or kW) to which the system power consumption will be limited when the corresponding digital input asks. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 216 Limits when [9.9.1]=Inputs and [9.9.2]=kW: Code Description [9.9.9] [5-09] Limit 1: 0 kW~20 kW [9.9.A] [5-0A] Limit 2: 0 kW~20 kW [9.9.B] [5-0B] Limit 3: 0 kW~20 kW [9.9.C] [5-0C] Limit 4: 0 kW~20 kW EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 217 (BBR16 activation and BBR16 power limit). After 2 weeks, the unit freezes these settings. Note: This is different from the permanent power limitation, which is always changeable. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 218 ▪ 0 None: NOT installed ▪ 1 1/10kWh: Installed ▪ 2 1/kWh: Installed ▪ 3 10/kWh: Installed ▪ 4 100/kWh: Installed ▪ 5 1000/kWh: Installed EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 219 The outdoor temperature is averaged over the selected time period. Code Description [9.B.3] [1-0A] Averaging time: ▪ 0: No averaging ▪ 1: 12 hours ▪ 2: 24 hours ▪ 3: 48 hours ▪ 4: 72 hours EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 220 (based on energy efficiency and operating temperatures) the auxiliary boiler provides heat for domestic hot water, while the heat pump continues to provide heat for the space heating circuit. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 221 Example COP = (Electricity price / gas price) × boiler efficiency ▪ Electricity price: 20 c€/kWh ▪ Gas price: 6 c€/kWh ▪ Boiler efficiency: 0.9 Then: COP=(20/6)×0.9=3 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 222 Lower values of the PE factor result in increased use of the heat pump. Higher values of the PE factor result in increased use of the auxiliary boiler. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 223 Code Description [9.E] [3-00] Auto restart: ▪ 0: Manual ▪ 1: Automatic EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 224 1: Yes Forced defrost Forced defrost Manually start a defrost operation. Code Description [9.H] Do you want to start a defrost operation? ▪ Back ▪ EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 225 This energy can either be provided by a solar system or an auxiliary boiler connected to the storage tank. The latter is desirable, if the auxiliary heater EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 226 The tank free energy hysteresis defines the storage tank limit temperature, above which heat pump and boiler is stopped in case solar energy is provided and solar priority is active ([C‑00]=0). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 227 1 No: The auxiliary boiler is too small to cover the building demand and is used solely as backup heat source. Therefore, the heat pump is the only available primary heat source. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 228 ▪ 1 No: Heat pump and boiler can operate also while solar energy is provided. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 229 Additional zone pump fixed PWM The speed of the additional zone pump can be fixed with this setting. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 230: Commissioning
About commissioning See: "11 Commissioning" [ 236] 10.5.11 User profile [B] User profile: See "To change the user permission level" [ 144]. Installer settings Commissioning User profile Operation Malfunctioning EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 231: Operation
About the WLAN cartridge or WLAN module The WLAN cartridge or WLAN module (only one of the two needed) connects the system to the internet. The user you can then control the system via the Daikin Residential Controller app. This needs the following components in case of WLAN cartridge:...
Page 232 See: http://www.onlinecontroller.daikineurope.com/ Configuration To configure the Daikin Residential Controller app, follow the in-app instructions. While doing this, the following actions and information are needed on the user interface: Mode: Turn AP mode ON (= WLAN cartridge/module active as access point) or OFF.
Page 233 Configuration INFORMATION You can only use this function if it is supported by the software version of the WLAN, and the software version of the Daikin Residential Controller app. Remove from cloud: Remove the WLAN cartridge/module from the cloud. Code Description [D.4]...
Page 234: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 235: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 236: Commissioning
11 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 the commissioning and hand-over to the user.
Page 237: Precautions When Commissioning
There are NO loose connections or damaged electrical components in the switch box. There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 238: Checklist During Commissioning
Check the function of the valve motor of M1S and M2S. Replace the valve motor if necessary. During pump test run, the unit can operate below the minimum required flow rate. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 239: Air Purge Function
Finally open the two manual air purging valves and check if the circuit is sufficiently filled with water. The air purge function automatically stops after 30 minutes. INFORMATION For best results, air purge each loop separately. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 240 Scroll to Pump speed and set it to Low/High. 7 To stop the air purge manually: — 1 Open the menu and go to Stop air purge. 2 Select OK to confirm. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 241: Operation Test Run
2 Select OK to confirm. INFORMATION If the outdoor temperature is outside the range of operation, the unit may NOT operate or may NOT deliver the required capacity. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 242: Actuator Test Run
▪ Shut off valve test ▪ DHW signal test ▪ Bivalent signal test ▪ Alarm output test EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 243: Underfloor Heating Screed Dryout
1 the duration in hours, up to 72 hours, 2 the desired leaving water temperature, up to 55°C. Example: 24h (1) 36h (2) 35°C (2) 25°C (1) T Desired leaving water temperature (15~55°C) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 244 [D‑01]=0 ▪ [4‑08]=0 ▪ [4‑01]≠1 Steps Conditions: An underfloor heating screed dryout schedule has been programmed. "To program an underfloor heating screed dryout schedule" [ 243]. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 245 When the program is stopped due to an error, an operation switch-off, or a power failure, you can read out the underfloor heating screed dryout status: 1 Go to [A.4.3]: Commissioning > UFH screed dryout > Status EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 246 If the UFH screed dryout program was stopped due to a power failure and the power resumes, the program will automatically restart the last implemented step. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 247: Hand-Over To The User
Show the user what to do for the maintenance of the unit. ▪ Explain the user about energy saving tips as described in the operation manual. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 248: Maintenance And Service
Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 249: Yearly Maintenance
Storage tank water level 13.3.4 Yearly maintenance indoor unit: instructions Water pressure – Space heating/cooling circuit Keep water pressure above 1 bar. If it is lower, add water. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 250 2 Switch box 2 Check if the red level indicator is visible. If NOT, add water to the storage tank (see "8.2.8 To fill the storage tank" [ 100]). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 251 Maintenance and service EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 252: Troubleshooting
If you are unable to find the cause of the problem, call your dealer. DANGER: RISK OF ELECTROCUTION EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 253: Solving Problems Based On Symptoms
Make sure that the water volume in the too low installation is above the minimum required value (see "8.1.2 To check the water volume and flow rate" [ 89]). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 254: Symptom: Hot Water Does Not Reach The Desired Temperature
14.3.4 Symptom: The system is making gurgling noises after commissioning Possible cause Corrective action There is air in the system. Purge air from the system. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 255: Symptom: The Pump Is Blocked
Purge air manually (see "To perform a manual air purge" [ 240]) or use the automatic air purge function (see "To perform an automatic air purge" [ 241]). EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 256: Symptom: The Pressure Relief Valve Opens
▪ 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 257: 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] EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 258: 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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 259: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 260 Malfunction of compressor overload protection H6-00 OU: Malfunction of position detection sensor H8-00 OU: Malfunction of compressor input (CT) system H9-00 OU: Malfunction of outdoor air thermistor EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 261 Malfunction by reverse phase/open-phase U2-00 OU: Defect of power supply voltage U3-00 Underfloor heating screed dryout function not completed correctly U4-00 Indoor/outdoor unit communication problem EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 262 If an U8‑04 error occurs, the error can be reset after a successful update of the software. If the software is not successfully updated then you must make sure that your USB device has the FAT32 format. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 263 Troubleshooting INFORMATION The user interface will display how to reset an error code. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 264: Disposal
"7.3.6 To install the discharge grille" [ 80] ▪ "7.3.7 To remove the discharge grille, and put the grille in safety position" [ 81] 1 Make sure the unit is not running. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 265: To Manually Open The Electronic Expansion Valves
When power is ON, this has to be done by using the recovery mode. Components To activate/deactivate the recovery mode, you need the following components: EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 266 = OFF, = ON, and = flashing. Result: The recovery mode is activated. The unit opens the electronic expansion valves / solenoid valves. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 267 / solenoid valves to their initial state. INFORMATION Power OFF. When power is turned OFF and turned ON again, the recovery mode is deactivated automatically. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 268: To Drain The Storage Tank
Connection cover b Screw plug 3 Insert the screw plug into the fill and drain kit and secure with the clip contained in the option kit. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 269 1 Place an appropriate tray under the drain connection to collect water spillage. 2 Open the screw plug and remove the sealing plug and IMMEDIATELY close with the previously prepared screw plug with drain connection. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 270: To Drain The Storage Tank With A Connected Pressureless Solar System
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. EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 271: Technical Data
Technical data 16 Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin Business Portal (authentication required). In this chapter 16.1...
Page 272: Service Space: Outdoor Unit
≥300 ≥100 ≥500 (mm) 3D124412 English Translation General General No top-side obstacle No top-side obstacle Top-side obstacle Top-side obstacle Wall height unrestricted Wall height unrestricted EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 273: Piping Diagram: Outdoor Unit
Y3E Electronic expansion valve (injection) Y1S Solenoid valve (4-way valve) Y2S Solenoid valve (low pressure bypass) Y3S Solenoid valve (hot gas bypass) Y4S Solenoid valve (liquid injection) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 274: Piping Diagram: Indoor Unit
R2T Thermistor (backup heater – water OUT) R5T, R8T Thermistor (tank) R7T Thermistor (tank - water OUT) S1L Flow switch Screw connection Flare connection Quick coupling Brazed connection EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 275: Wiring Diagram: Outdoor Unit
Right side view See note *** See note *** Notes: Symbols: Live Neutral Protective earth Noiseless earth Field wiring Option Terminal strip Terminal Connector Connection EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 276 Light-emitting diode (service monitor is orange) HAP (A1P) Light-emitting diode (service monitor is green) K1R (A1P) Magnetic relay (Y1S) K1R (A4P) Magnetic relay (E1HHEX~E3HHEX) K2R (A1P) Magnetic relay (Y2S) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 277 Insulated Gate Bipolar Transistor (IGBT) X1M, X2M Terminal strip Electronic expansion valve (main) Electronic expansion valve (injection) Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 278 Earth leakage circuit breaker (30 mA) (field supply) R1, R2 (A2P) Resistor Thermistor (outdoor air) Thermistor (compressor discharge) Thermistor (compressor suction) Thermistor (air heat exchanger, distributor) Thermistor (air heat exchanger, middle) EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 279 Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) Solenoid valve (hot gas bypass) Solenoid valve (liquid injection) Z1C~Z10C Noise filter (ferrite core) Z1F~Z4F (A1P, A3P) Noise filter EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 280: 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 281 # 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 282 Alarm output Alarm output BUH option Backup heater option BUH option only for * Backup heater option only for * Bizone mixing kit Bizone mixing kit EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 283 Space C/H On/OFF output Space cooling/heating On/OFF output SWB1 Switch box (4) Option PCBs (4) Option PCBs Only for demand PCB option Only for demand PCB option EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 284 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 EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 285 Power limitation demand input 4 Only for remote user interface A8P: X801M: 4-5 2 core signal 2×0.75 X 5M: 11-12 A14P: P1-P2 user interface communication 4D132247A EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 286: Esp Curve: Indoor Unit
Operating pressure of storage water pH k Domestic hot water volume (heat exchanger) l Max. operating pressure PMS (drinking water installation) m Nominal voltage U EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 287 Technical data n Rated current of fuse o Protection type p Backup heater (optional) q Part number r Revision EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF Installer reference guide Daikin Altherma 3 H HT ECH₂O 4P679467-1 – 2022.02...
Page 288: 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 289: Field Settings Table
1/16 Field settings table Applicable indoor units ETSH16P30EF ETSH16P50EF ETSHB16P30EF ETSHB16P50EF ETSX16P30EF ETSX16P50EF ETSXB16P30EF ETSXB16P50EF Notes (*1) 300 Tank* (*2) 500 Tank* (*3) *X* (*4) *H* (*5) *B* (*6) EKECBUA*3V (*7) EKECBUA*6V (*8) EKECBUA*9W (*9) BUH less (*10) 16P 4P681797-1 - 2022.01...
Page 290 2/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value 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...
Page 291 3/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [C-05] Ext Thermostat type 1: 1 contact 2: 2 contacts └─ Delta T 2.B.1 [1-0B] Delta T heating R/W ([2- 3~10°C, step: 1°C [2-0C] ≠...
Page 292 4/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [2-0D] ≠2 (Radiator) 3.B.1 [1-0C] Delta T heating [2-0D] ≠2 3~10°C, step: 1°C 5°C [2-0D] =2 [2-0D] = 2 (Radiator) 10°C 3.B.2 [1-0E]...
Page 293 5/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [0-0E] Low ambient temp. for DHW WD curve. -40~5°C, step: 1°C -10°C Tank [6-01] Margin 0~10°C, step: 1°C 0°C WD curve type 0: 2-points 1: Slope-Offset User settings...
Page 294 6/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value 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] Leaving water value for low ambient temp. for LWT main zone [9-01]~[9-00], step: 1°C heating WD curve.
Page 295 7/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value 9.2.2 [D-02] DHW pump 0: No DHW pump 1: Instant hot water 2: Disinfection 3: Circulation 4: Circulation and disinfection 9.2.4 [D-07] Solar...
Page 296 8/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value 9.8.6 Allow electric heaters 0: No 1: Yes 9.8.7 Enable Room buffering 0: No 1: Yes 9.8.8 Limit setting kW 0~20 kW, step: 0,5 kW 2 kW └─...
Page 297 9/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value Disable protections 0: No 1: Yes └─ Overview field settings [0-00] Leaving water value for high ambient temp. for LWT add zone [9-05]~min(45,[9-06])°C, step: 1°C heating WD curve.
Page 298 10/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [1-0B] What is the desired delta T in heating for the main zone? R/W ([2- 3~10°C, step: 1°C [2-0C] ≠ 2 (Radiator) 0C] ≠...
Page 299 11/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [4-06] Emergency 0: Manual 1: Automatic 2: Auto SH reduced/ DHW ON 3: Auto SH reduced/ DHW OFF 4: Auto SH normal/ DHW OFF [4-07] [4-08] Which power limitation mode is required on the system?
Page 300 12/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [6-0E] What is the maximum temperature setpoint? E-07 = 4 40~ 75°C, step: 1°C 65°C [7-00] Domestic hot water booster heater overshoot temperature. 0~4°C, step: 1°C 0°C [7-01]...
Page 301 13/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [9-07] What is the mimimum desired LWT for add. zone in cooling? 5~18°C, step: 1°C 7°C [9-08] What is the maximum desired LWT for add. zone in cooling? 18~22°C, step: 1°C 22°C [9-09]...
Page 302 14/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value Default value [D-09] Is an external kWh meter used for power measurement, kWh meter 0: No used for smart grid? 1: 0,1 pulse/kWh 2: 1 pulse/kWh 3: 10 pulse/kWh 4: 100 pulse/kWh...
Page 303 15/16 Field settings table Installer setting at variance with default value Breadcrumb Setting name Range, step Date Value 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?
Page 304 16/16...
Page 308 4P679467-1 0000000. 4P679467-1 2022.02 Verantwortung für Energie und Umwelt...

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