Power limitation activated by digital inputs ....................61 6.6.3 Power limitation process..........................63 6.6.4 BBR16 power limitation..........................63 Setting up an external temperature sensor ........................64 Installer reference guide EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 3
To connect the WLAN cartridge (delivered as accessory)................138 9.3.15 To connect the solar input ..........................139 9.3.16 To connect the DHW output .......................... 139 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 4
Symptom: The pressure relief valve opens....................254 14.3.8 Symptom: The water pressure relief valve leaks................... 254 14.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........... 254 Installer reference guide EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 5
Wiring diagram: Indoor unit ............................279 16.6 ESP curve: Indoor unit..............................285 16.7 Name plate: Indoor unit ..............................285 17 Glossary 18 Field settings table EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O...
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).
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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).
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). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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" [ 75]) 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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 19
This maximum allowable hot water temperature shall be selected according to the applicable legislation. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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" [ 76] ±120 4× EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
About the box 4.2.2 To unpack the outdoor unit EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ Bring the packed unit as close as possible to its final installation position to prevent damage during transport. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Certain options may NOT be available in your country. 5.3.1 Possible combinations of indoor unit and outdoor unit Indoor unit Outdoor unit EPRA08 EPRA10 EPRA12 ETSH/X EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Setting up the storage tank ▪ Setting up the energy metering ▪ Setting up the power consumption control ▪ Setting up an external temperature sensor EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 43
INFORMATION To increase comfort and performance, we recommend to install the valve kit option EKVKHPC on each heat pump convector. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 45
For this system, a direct pump is required for the additional zone. A Additional leaving water temperature zone B Room 1 C Room 2 D Main leaving water temperature zone EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 47
If the main zone must be shut off during cooling mode to prevent condensation on the floor, set it accordingly. "Bizone kit" [ 227] for more information on configuration of the bizone kit. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Space heating is turned ON, and Tank operation is turned OFF ▪ Domestic hot water is always produced by the storage tank connected to the indoor unit. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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
Setpoint of the auxiliary gas boiler To prevent freeze-up of the water piping, the auxiliary gas boiler must have a fixed setpoint ≥55°C, or a weather-dependent setpoint ≥T EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ 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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O...
1 Integrate the solar system as follows: a Drainback solar flow connection (optional solar drainback kit) b Flow sensor (optional solar drainback kit) c Flow rate limiter (optional) d Drainback connection EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
For systems without indirect auxiliary boiler connected to the storage tank, it is mandatory to install an electric backup heater to ensure safe operation for all conditions. Configuration Via the user interface (configuration wizard): EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Example: If the DHW consumption of a family (4 persons) per day is as follows: ▪ 3 showers ▪ 1 bath ▪ 3 sink volumes Then the DHW consumption = (3×100 l)+(1×150 l)+(3×10 l)=480 l EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Bivalent heat source, see "6.3 Setting up bivalent heat sources" [ 48] ▪ For more information about optimizing the energy consumption for producing domestic hot water, see "10 Configuration" [ 141]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
The DHW pump is field-supplied and its installation is the responsibility of the installer. For the electrical wiring, see "9.3.7 To connect the domestic hot water pump" [ 126]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
The flow rate ▪ Setup and configuration: No additional equipment needed. 6.5.2 Consumed energy You can use the following methods to determine the consumed energy: ▪ Calculating EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Power meter 2: Measures the rest (i.e. indoor unit and backup heater). Setup ▪ Connect power meter 1 to X15M/5 and X15M/6. ▪ Connect power meter 2 to X15M/9 and X15M/10. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Allows you to limit the power consumption of the entire heat pump system (sum of indoor unit and backup heater) via 4 digital inputs. ▪ Limitation of power in kW or current in A. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Set the desired power limitation level 6.6.2 Power limitation activated by digital inputs Power limitation is also useful in combination with an energy management system. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 62
Application guidelines 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: ▪ Current (in A) ▪...
(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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Setup: For installation instructions, see the installation manual of the remote indoor sensor, and the addendum book for optional equipment. ▪ Configuration: Select room sensor [9.B]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 65
To protect the outdoor unit, the internal sensor of the outdoor unit is always used. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Mind the spacing guidelines. See "16.1 Service space: Outdoor unit" [ 271]. NOTICE ▪ Do NOT stack the units on each other. ▪ Do NOT hang the unit on a ceiling. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O...
Maximum height difference between indoor unit and outdoor 10 m unit Maximum total water piping length between indoor unit and 20 m (single outdoor unit when using 1" piping run) EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.
User interface panel b Switch box cover Open 1 Remove the user interface panel. Open the hinges at the top and slide the interface panel downwards. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Prerequisite: The user interface panel has been removed. 1 Loosen the screws. 2 Lift up the switch box. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 74
4 If necessary, remove the top cover. This is necessary in the following cases: ▪ Connecting water piping ▪ Connecting BIV or DB-kit ▪ Connecting backup heater EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 78
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
4 Align and attach the left side. 5 Align and attach the middle part. 6 Align and attach the right side. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
79] ▪ "7.3.7 To remove the discharge grille, and put the grille in safety position" [ 80] 1 Remove the upper part of the discharge grille. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 81
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Spillover water from the water storage tank as well as water collecting in the drain pan must be drained. You must connect the drain hoses to an appropriate drain according to the applicable legislation. 1 Open the screw plug. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 83
7 Connect the pressure relief valve to an appropriate drain in accordance with the applicable legislation. Ensure that any steam or water that may escape is drained in a frost-protected, safe and observable manner. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 84
Unit installation a Pressure relief valve EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Inappropriate tooling will cause damage to the pipes. ▪ Insulation. Insulate up to the base of the heat exchanger. ▪ Freeze. Protect against freezing. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 86
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 87
Circulation stop valves. We recommend to use circulation stop valves at the connections of the heat exchanger for domestic hot water. This minimizes heat losses due to temperature-induced circulation in the connecting pipes. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
NOT included. INFORMATION In critical processes, or in rooms with a high heat load, extra water might be required. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
235]. 8.2 Connecting water piping 8.2.1 About connecting the water piping Before connecting the water piping Make sure the outdoor and indoor unit are mounted. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
1") d Thread sealant 2 Connect the field piping to the shut-off valve. 3 Connect the field piping to the outdoor unit water outlet. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 91
ONLY remove parts in the order and direction as indicated here, ▪ do NOT use force, ▪ do NOT use tools, ▪ re-install the thermal insulation in reverse order. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 92
If the space heating/cooling or the domestic hot water pipes are directed upwards, the top cover must be cut along the perforation with a suitable tool. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 93
Domestic cold water IN (cold water supply)(screw connection, 1") e Outdoor unit water OUT (screw connection, 1") f Outdoor unit water IN (screw connection, 1") EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
There may not be any hydraulic blocking elements between the heat generator and the safety valve. 2 Position the pressure vessel in an easily accessible place (maintenance, parts replacement). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
(field supply) to a water tap and the fill and drain valve. Secure the hose against slipping off. 100% Bypass 100% a Hose with a non-return valve (1/2") and an external manometer (field supply) b Fill and drain valve EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Glycol leaking out of the freeze protection valves. Freeze protection by glycol About freeze protection by glycol Adding glycol to the water lowers the freezing point of water. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 97
Protection against bursting: the glycol will prevent the piping from bursting, but NOT the liquid inside the piping from freezing. ▪ Protection against freezing: the glycol will prevent the liquid inside the piping from freezing. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 98
Note: Leave at least 15 cm clearance from the ground to prevent ice from blocking the water exit. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Before the storage tank can be filled, the heat exchangers inside the storage tank have to be filled, see previous chapters. Fill the storage tank with a water pressure <6 bar and a flow speed <15 l/min. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 100
2 Connect the hose with non-return valve to the fill and drain kit. Follow the steps described in the previous chapter. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.
DANGER: RISK OF ELECTROCUTION WARNING ALWAYS use multicore cable for power supply cables. INFORMATION Also read the precautions and requirements in the "2 General safety precautions" [ 10]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Stranded conductor wire b Round crimp-style terminal ▪ Use the following methods for installing wires: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.
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" [ 113]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ 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. — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 108
▪ 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 — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 109
▪ 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) — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 110
▪ 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. — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 111
▪ 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 — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 112
▪ 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) — EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 115
▪ 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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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" [ 72]). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 117
All cables which will be connected to the switch box of the ECH O must be fixed by strain relief. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 119
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
[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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 121
Z less than or equal to Z Connect the backup heater power supply as follows: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 122
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
1 Open the following (see "7.2.5 To open the indoor unit" [ 72]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
"7.2.5 To open the indoor unit" [ 72]): 1 User interface panel 2 Switch box 3 Switch box cover 4 Top cover 2 Install the switch box metal insert. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 131
4 Fix the cable with cable ties to the cable tie mountings. General information, "9.3.1 To connect the electrical wiring to the indoor unit" [ 116]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
X 5M 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" [ 116]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
([9.A.2] Electricity meter 2 = None) In case of low voltage Smart Grid contacts Wires (Smart Grid pulse meter): 0.5 mm² Wires (low voltage Smart Grid contacts): 0.5 mm² EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 134
2 Fix the cables with cable ties to the cable tie mountings. In case of high voltage Smart Grid contacts Wires (Smart Grid pulse meter): 0.5 mm² Wires (high voltage Smart Grid contacts): 1 mm² EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 135
1 Install the switch box metal insert. 2 Loosen the cables connected to the terminal of the Smart Grid relay kit (EKRELSG) and remove the terminal. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 136
Electrical installation 3 Install the components of the Smart Grid relay kit as follows: 2× 2× EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 137
X15M.6 4 Connect the low voltage wiring as follows: 9 10 X 5M.10 X 5M.9 X 5M 5 Connect the high voltage wiring as follows: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
9.3.14 To connect the WLAN cartridge (delivered as accessory) [D] Wireless gateway 1 Insert the WLAN cartridge into the cartridge slot on the user interface of the indoor unit. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
9.3.16 To connect the DHW output Wires: 2×0.75 mm² Maximum running current: 0.3 A, 230 V AC — 1 Open the following (see "7.2.5 To open the indoor unit" [ 72]): EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 140
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" [ 116]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 143
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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] EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 148
Installed heat emitter type: Underfloor heating Fancoil unit Radiator Leaving water temperature setpoint EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Shows the applicable symbol of your unit. Space heating/ cooling Put the unit in heating mode or cooling mode. You cannot change the mode on heating only models. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 153
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 154
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 155
The schedule name can contain up to 15 characters. 5 Confirm the new name. INFORMATION Not all schedules can be renamed. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Examples Weather-dependent curve when slope is selected: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 158
The icon corresponds to the heat emitter for that zone: ▪ : Underfloor heating ▪ : Fan coil unit ▪ : Radiator ▪ : Storage tank EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Go to … Main zone – Heating [2.5] Main zone > Heating WD curve Main zone – Cooling [2.6] Main zone > Cooling WD curve EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 162
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 163
Room frost protection is guaranteed by the normal logic. ▪ The external room thermostat is "Thermo ON" In case of 2 leaving water temperature zones: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 164
NOTICE When adjusting the room temperature ranges, all desired room temperatures are also adjusted to guarantee they are between the limits. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
[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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 166
Define a heating temperature schedule for the main zone via [2.2] Heating schedule. "10.3.7 Schedule screen: Example" [ 152]. Cooling schedule Define a cooling temperature schedule for the main zone via [2.3] Cooling schedule. "10.3.7 Schedule screen: Example" [ 152]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 167
10°C. Heating WD curve Set weather-dependent heating for the main zone (if [2.4]=1 or 2): EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 168
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): EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 169
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 170
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]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 172
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 173
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 174
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ 1 Yes: closes when the space operation mode is cooling. 10.5.4 Additional zone Overview The following items are listed in the submenu: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 176
152]. Setpoint mode The setpoint mode of the additional zone can be independently set from the setpoint mode of the main zone. "Setpoint mode" [ 167]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 177
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): EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 178
[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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 179
(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" [ 165]. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
If your unit is a heating/cooling model, it can both heat up and cool down a space. You have to tell the system which operation mode to use. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 181
2 Select a month. 3 For each month, select an option: ▪ Reversible: Not restricted ▪ Heating only: Restricted ▪ Cooling only: Restricted 4 Confirm the changes. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 182
Example: A unit is configured as following: ▪ Desired room temperature in heating mode: 22°C ▪ Desired room temperature in cooling mode: 24°C ▪ Hysteresis value: 1°C EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 183
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 184
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 185
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 186
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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 187
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) EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
If powerful operation is active, will be shown on the home screen. To activate powerful operation EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 190
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 191
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 193
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 195
Confirm the changes. 3 Set the last day of your holiday. — ▪ Go to [7.3.3]: Till. ▪ Select a date. ▪ Confirm the changes. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 196
Then you can do the following: 1 Go to [7.4.1]: User settings > Quiet > Activation. 2 Select Most quiet. Advantage: The outdoor unit runs in its most quiet level. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 197
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 198
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 200
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
[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: EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 202
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] EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 203
When measuring the resistance value of each heater, you can set the exact heater capacity and this will lead to more accurate energy data. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 204
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 205
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 206
[4-06] ▪ 0: Manual ▪ 1: Automatic ▪ 2: auto SH reduced/DHW on ▪ 3: auto SH reduced/DHW off ▪ 4: auto SH normal/DHW off EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 207
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 208
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] EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 209
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 210
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 211
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 212
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: ▪ ▪ EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 213
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 215
(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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 217
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 218
(based on energy prices or primary energy efficiency) the auxiliary boiler provides heat for domestic hot water, while the heat pump continues to provide heat for the space heating circuit. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 219
▪ Boiler efficiency: 0.9 Then: COP=(20/6)×0.9=3 Make sure to use the same units of measurement for the electricity price and gas price (example: both c€/kWh). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 220
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 222
1: Yes Forced defrost Forced defrost Manually start a defrost operation. Code Description [9.H] Do you want to start a defrost operation? ▪ Back ▪ EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 223
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 224
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). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 225
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 226
▪ 1 No: Heat pump and boiler can operate also while solar energy is provided. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 227
Additional zone pump fixed PWM The speed of the additional zone pump can be fixed with this setting. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 adapter active as access point) or OFF.
Page 230
▪ 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 from the cloud. Code Description [D.4]...
(**) 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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Mixing valve turning time (*) Only applicable in Swedish language. INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.
There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units. Backup heater circuit breaker F1B (field supply) is turned ON. The correct pipe size is installed and the pipes are properly insulated. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
— reach the minimum required flow rate + 2 l/min. During pump test run, the unit can operate below the minimum required flow rate. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 237
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ Shut off valve test ▪ DHW signal test ▪ Bivalent signal test ▪ Alarm output test EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
24h (1) 36h (2) 35°C (2) 25°C (1) T Desired leaving water temperature (15~55°C) t Duration (1~72 h) (1) Action step 1 (2) Action step 2 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 241
"To program an underfloor heating screed dryout schedule" [ 240]. Conditions: Make sure all operation is disabled. Go to [C]: Operation and turn off Space heating/cooling and Tank operation. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 242
1 Go to [A.4.3]: Commissioning > UFH screed dryout > Status 2 You can read out the value here: Stopped at + the step — where the underfloor screed dryout was stopped. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 243
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 247
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" [ 99]). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 248
Maintenance and service EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
If you are unable to find the cause of the problem, call your dealer. DANGER: RISK OF ELECTROCUTION EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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" [ 88]). EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 252
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
▪ The valve (if equipped) of the water circuit towards the expansion vessel is open. ▪ The pre-pressure setting of the expansion vessel is correct. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
The water pressure Whether there is air in the system The air purge operation EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
(disinfection function). The disinfection operation was stopped Do NOT stop tank operation during manually: [C.3] Operation > Tank was disinfection. turned off during disinfection. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Water flow problem. Pump deblocking active 7H-08 Pump abnormality during operation (pump feedback) 80-01 Returning water temperature sensor problem 81-00 Leaving water temperature sensor problem 81-01 Mixed water thermistor abnormality. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 257
Heat exchanger thermistor abnormality CJ-02 Room temperature sensor problem E1-00 OU: PCB defect E2-00 Leakage current detection error E3-00 OU: Actuation of high pressure switch (HPS) EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 258
J6-07 OU: Malfunction of heat exchanger thermistor J6-32 Leaving water temperature thermistor Abnormality (outdoor unit) J6-33 Sensor communication error J8-00 Malfunction of refrigerant liquid thermistor EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 259
U8-09 MMI software version {version_MMI_software} / Indoor unit [version_IU_modelname] compatibility error U8-11 Connection with the Wireless gateway lost UA-00 Indoor unit, outdoor unit matching problem EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 260
If the software is not successfully updated then you must make sure that your USB device has the FAT32 format. INFORMATION The user interface will display how to reset an error code. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
See: ▪ "7.3.6 To install the discharge grille" [ 79] ▪ "7.3.7 To remove the discharge grille, and put the grille in safety position" [ 80] EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
3 Turn the EEV magnet anticlockwise to the fully open position of the valve. If you are not sure about what the open position is, turn the valve in its middle position so that refrigerant can pass. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Display the current value. Press BS3 once. Change the value to 2. Press BS2 once. Enter the value in the system. Press BS3 once. Confirm. Press BS3 once. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 264
Result: The recovery mode is deactivated. The unit returns the electronic expansion valves to their initial state. INFORMATION Power OFF. When power is turned OFF and turned ON again, the recovery mode is deactivated automatically. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
= OFF, = ON, and = flashing. Result: The recovery mode is activated. The unit opens the electronic expansion valves. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
2 Unplug the spillover connector. a Spillover connector b Screw plug 3 Connect the loose end of the spillover drain hose to an appropriate drain. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 267
Fill and drain kit b Screw plug 4 Connect the loose end of the drain hose to an appropriate drain. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
2 Place an appropriate tray under the drain connection to collect water spillage. 3 Remove the clip and sealing plug. 4 Insert the fill and drain kit and secure with the clip. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 269
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. EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 280
# 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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 281
Alarm output Alarm output BUH option Backup heater option BUH option only for * Backup heater option only for * Bizone mixing kit Bizone mixing kit EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 282
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 283
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 284
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 4D132247 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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 EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
Page 286
Technical data n Rated current of fuse o Protection type p Backup heater (optional) q Part number r Revision EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF Installer reference guide Daikin Altherma 3 H MT ECH₂O 4P663478-1 – 2021.07...
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.
1/13 0791 Field settings table [8.7.5] = ..Applicable indoor units ETSH12P30EF ETSH12P50EF ETSHB12P30EF ETSHB12P50EF ETSX12P30EF ETSX12P50EF ETSXB12P30EF ETSXB12P50EF Notes (*1) 300 Tank (*2) 500 Tank (*3) *X* (*4) *H* (*5) *B* (*6) EKECBUA3V (*7) EKECBUA6V (*8) EKECBUA9W (*9) BUH less 4P670987-1 - 2021.09...
Page 289
2/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value Room └─ Antifrost 1.4.1 [2-06] Activation 0: Disabled 1: Enabled 1.4.2 [2-05] Room setpoint 4~16°C, step: 1°C 8°C └─...
Page 290
3/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value └─ Shut off valve 2.D.1 [F-0B] During thermo 0: No 1: Yes 2.D.2 [F-0C] During cooling 0: No 1: Yes Main zone WD curve type...
Page 291
4/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [F-00] Pump outside range 0: Restricted 1: Allowed [D-03] Increase around 0°C 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...
Page 292
5/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.1.3.8 [C-02] Bivalent 0 none 1 bivalent through header 2 tank DHW bivalent (*5) 3 tank heating + DHW bivalent 9.2.4 [D-07] Solar...
Page 293
6/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.1.A [0-04] Leaving water value for high ambient temp. for LWT add zone cooling WD curve. [9-07]~[9-08]°C, step: 1°C [2-0C]=0: 18°C [2-0C]=1:...
Page 294
7/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.8.2 [D-00] Allow heater 0: None 1: BSH only 2: BUH only 3: All heaters 9.8.3 [D-05] Allow pump 0: Forced off 1: As normal 9.8.4...
Page 295
8/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [0-00] Leaving water value for high ambient temp. for LWT add zone heating WD curve. [9-05]~min(45,[9-06])°C, step: 1°C [2-0C]=0: 25°C [2-0C]=1:...
Page 296
9/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [2-00] When should the disinfection function be executed? 0: Each day 1: Monday 2: Tuesday 3: Wednesday 4: Thursday 5: Friday 6: Saturday 7: Sunday...
Page 297
10/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [5-04] Set point correction for domestic hot water temperature. 0~20°C, step: 1°C 10°C [5-05] What is the requested limit for DI1? 0~50 A, step: 1 A 50 A [5-06]...
Page 298
11/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [8-08] What is the desired eco main LWT in cooling? [9-03]~[9-02], step: 1°C 20°C [8-09] What is the desired comfort main LWT in heating? [9-01]~[9-00], step: 1°C 35°C [8-0A]...
Page 299
12/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [D-04] Is a demand PCB connected? 0: No 1: Pwr consmp ctrl [D-05] Is the pump allowed to run if prefer. kWh rate PS is cut? 0: Forced off 1: As normal [D-07]...
Page 300
13/13 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.P.1 [E-0B] Bizone kit installed 0: Not installed 1: - 2: Bizone kit installed 9.P.2 [E-0C] Bizone system type 0: Without hydraulic separator / no direct pump 1: With hydraulic separator / no direct...
Page 304
4P663478-1 2021.07 Verantwortung für Energie und Umwelt...