Page 1 Installer reference guide Daikin Altherma 3 H MT F https://daikintechnicaldatahub.eu EPRA08EAV3 ETVZ12S18EA6V EPRA10EAV3 ETVZ12S23EA6V EPRA12EAV3 ETVZ12S18EA9W ETVZ12S23EA9W EPRA08EAW1 EPRA10EAW1 EPRA12EAW1...
Page 2: Table Of Contents
Installation site requirements of the indoor unit ..................51 Opening and closing the units ............................52 7.2.1 About opening the units..........................52 7.2.2 To open the outdoor unit..........................53 Installer reference guide EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 3 To connect the PC cable to the switch box....................119 10.2 Configuration wizard............................... 119 10.3 Possible screens ................................121 10.3.1 Possible screens: Overview ..........................121 10.3.2 Home screen..............................122 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 4 14.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error)..........233 14.4 Solving problems based on error codes ......................... 234 14.4.1 To display the help text in case of a malfunction ..................234 Installer reference guide EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 5 Wiring diagram: Outdoor unit ............................249 16.5 Wiring diagram: Indoor unit ............................254 16.6 ESP curve: Indoor unit..............................260 17 Glossary 18 Field settings table EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 6: About The Documentation
Addendum book for optional equipment: Additional info about how to install optional equipment Format: Paper (in the box of the indoor unit) + Digital files on http:// www.daikineurope.com/support-and-manuals/product-information/ EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 7: Meaning Of Warnings And Symbols
The original documentation is written in English. All other languages are translations. 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
Description About the documentation What documentation exists for the installer General safety precautions Safety instructions that you must read before installing Specific installer safety instructions EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 9 Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
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). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 12 ONLY use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system. ▪ Charge the liquid refrigerant as follows: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 13: Water
If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 14 Install power cables at least 1 meter away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 meter may NOT be sufficient. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 15 ON and OFF while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 16: Specific Installer Safety Instructions
(example: open flames, an operating gas appliance or an operating electric heater). 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" [...
Page 17 WARNING Ethylene glycol is toxic. Electrical installation (see "9 Electrical installation" [ 83]) DANGER: RISK OF ELECTROCUTION EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 18 If the supply cord is damaged, it MUST be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. CAUTION Do NOT push or place redundant cable length in the unit. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 19 To protect the piping connected to the magnetic filter/dirt separator from damage it is recommended to perform this procedure with the magnetic filter/dirt separator removed from the unit. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
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" [ 59] EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 23: To Unpack The Outdoor Unit
About the box ±120 4× 4.2.2 To unpack the outdoor unit EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 25: To Unpack The Indoor Unit
Sealing tape for low voltage wiring intake 4.3.3 To handle the indoor unit Use the handles at the back and at the bottom to carry the unit. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 26 Handles at the back of the unit b Handles at the bottom of the unit. Carefully tilt the unit to the back so that the handles become visible. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 27: About The Units And Options
Location Model identification Example: EP R A 08 EA V3 Code Explanation European hydro-split outdoor pair heat pump High water temperature – ambient zone 2 (see operation range) Refrigerant R32 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 28: Identification Label: Indoor Unit
Use one of the following models: ▪ EKMST1 with flange feet: to install the outdoor unit on a concrete foundation where drilling is allowed. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 29: Possible Options For The Indoor Unit
The remote indoor sensor can only be used in case the user interface is configured with room thermostat functionality. ▪ You can only connect either the remote indoor sensor or the remote outdoor sensor. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 30 For installation instructions, see the installation and operation manual of the Human Comfort Interface (HCI) as room thermostat, and the addendum book for optional equipment. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 31 The installation of the optional Smart grid relay kit is required in case of high voltage Smart grid contacts (EKRELSG). For installation instructions, see "9.3.11 To connect a Smart Grid" [ 111]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 32: Application Guidelines
Setting up the domestic hot water tank ▪ Setting up the energy metering ▪ Setting up the power consumption control ▪ Setting up an external temperature sensor EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 33: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 34: Multiple Rooms - Two Lwt Zones
In cooling: 12°C In cooling mode, you can allow the underfloor heating (main zone) to provide refreshment (no real cooling), or NOT allow it. See setup below. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 35 ▪ Other rooms external room thermostat functionality Number of water temperature zones: 1 (Dual zone): Main + additional ▪ #: [4.4] ▪ Code: [7-02] EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 36: Setting Up The Domestic Hot Water Tank
40°C. However, you can set the DHW tank temperature at a higher temperature (example: 53°C), which is then mixed with cold water (example: 15°C). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 37 ▪ If the DHW consumption differs from day to day, you can program a weekly schedule with different desired DHW tank temperatures for each day. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 38: Setup And Configuration - Dhw Tank
The DHW pump and the installation are field supply and the responsibility of the installer. For the electrical wiring, see "9.3.5 To connect the domestic hot water pump" [ 104]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 39: Dhw Pump For Disinfection
When opening the tapping point, the water temperature can be up to 55°C. Configuration The indoor unit can control DHW pump operation. For more information, see "10 Configuration" [ 116]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 40: Setting Up The Energy Metering
You cannot combine calculating the consumed energy (example: for backup heater) and measuring the consumed energy (example: for outdoor unit). If you do so, the energy data will be invalid. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 41: Normal Kwh Rate Power Supply
6.4.4 Preferential kWh rate power supply General rule ▪ Power meter 1: Measures the outdoor unit. ▪ Power meter 2: Measures the rest (i.e. indoor unit and backup heater). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 42: Setting Up The Power Consumption Control
Allows you to limit the power consumption of the entire heat pump system (sum of indoor unit and backup heater) with one permanent setting. ▪ Limitation of power in kW or current in A. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 43: Permanent Power Limitation
Power input t Time DI Digital input (power limitation level) a Power limitation active b Actual power input Setup and configuration ▪ No additional equipment needed. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 44: Power Limitation Activated By Digital Inputs
6.5.2 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 45: 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 46: 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: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 47 To protect the outdoor unit, the internal sensor of the outdoor unit is always used. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 48: Unit Installation
The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 49: Installation Site Requirements Of The Outdoor Unit
It is NOT recommended to install the unit in the following places because it may shorten the life of the unit: ▪ Where the voltage fluctuates a lot ▪ In vehicles or vessels EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 50 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 51: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Unit installation WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. 7.1.2 Additional installation site requirements of the outdoor unit in cold climates Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up.
Page 52: 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 53: To Open The Outdoor Unit
Keep 4 screws to attach the compressor cover piece (see the installation manual, topic “To attach the compressor cover piece”). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 54: To Close The Outdoor Unit
Top panel b User interface panel c Switch box cover d Front panel e High voltage switch box cover Open 1 Remove the top panel. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 55 X 1 4 Y 3 Remove the switch box cover. 4× 4 If necessary, remove the front plate. This is, for example, necessary in the following cases: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 56: To Lower The Switch Box On The Indoor Unit
1 Remove the fixing plate at the top of the unit. 2 Tilt the switch box to the front and lift it out of its hinges. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 57: To Close The Indoor Unit
7.3 Mounting the outdoor unit 7.3.1 About mounting the outdoor unit When You have to mount the outdoor unit before you can connect the water piping. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 58: Precautions When Mounting The Outdoor Unit
Use 4 sets of M12 anchor bolts, nuts and washers. Provide at least 150 mm of free space below the unit. Additionally, make sure the unit is positioned at least 100 mm above the maximum expected level of snow. Anchor points (mm) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 59: To Install The Outdoor Unit
7.3.4 To install the outdoor unit 1 Carry the unit by its slings, and put it onto the installation structure. ±120 4× 2 Fix the unit to the installation structure. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 60: To Provide Drainage
▪ Install a drain tube heater (field supply). To connect the drain tube heater, see "9.2.1 To connect the electrical wiring to the outdoor unit" [ 88]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 61: To Install The Discharge Grille
Electrical wiring. Before installing the discharge grille, connect the electrical wiring. Install the lower part of the discharge grille 1 Insert the hooks. 2 Insert the ball studs. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 62 4 Align and attach the left side. 5 Align and attach the middle part. 6 Align and attach the right side. 7 Insert the hooks. 8 Insert the ball studs. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 63: To Remove The Discharge Grille, And Put The Grille In Safety Position
"7.3.7 To remove the discharge grille, and put the grille in safety position" [ 63] 1 Remove the upper part of the discharge grille. 4× 2 Remove the lower part of the discharge grille. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 64 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 65: Mounting The Indoor Unit
4 Adjust the height of the leveling feet to compensate for floor irregularities. The maximum allowed deviation is 1°. ≤1° NOTICE Do NOT tilt the unit forwards: 1° 1° 0° EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 66: To Connect The Drain Hose To The Drain
It is recommended to use a tundish to collect the water. Option 1: Through the left side panel 3× Option 2: Through the right side panel 3× EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 67: Piping Installation
Deformation of the piping can cause malfunctioning of the unit. ▪ Connecting piping – Tools. Only use appropriate tooling to handle brass, which is a soft material. If NOT, pipes will get damaged. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 68 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 69 ▪ Hygienic measures. The installation must be in compliance with the applicable legislation and may require additional hygienic installation measures. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 70: Formula To Calculate The Expansion Vessel Pre-Pressure
When circulation in each space heating/cooling loop is controlled by remotely controlled valves, it is important that the minimum water volume is guaranteed, even if all of the valves are closed. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 71 200 220 270 290 A Pre-pressure (bar) B Maximum water volume (l) Water Water + glycol Example: Maximum water volume and expansion vessel pre-pressure EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 72 In case the minimum flow rate cannot be reached, a flow error 7H will be generated (no heating or operation). See the recommended procedure as described in "11.4 Checklist during commissioning" [ 209]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 73: Changing The Pre-Pressure Of The Expansion Vessel
The corresponding maximum water volume at 0.3 bar is 290 l. (See the graph in "Maximum water volume" [ 71]). ▪ Because 250 l is lower than 290 l, the expansion vessel is appropriate for the installation. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 74: Connecting Water Piping
Water OUT (screw connection, male, 1") b Water IN (screw connection, male, 1") c Shut-off valve with integrated filter (delivered as accessory)(2× screw connection, female, 1") d Thread sealant EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 75 NOTICE It is recommended to install shut-off valves to domestic cold water in and domestic hot water out connections. These shut-off valves are field supplied. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 76 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 77: To Connect The Recirculation Piping
8.2.5 To fill the water circuit To fill the water circuit, use a field supply filling kit. Make sure you comply with the applicable legislation. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 78: To Protect The Water Circuit Against Freezing
Freeze protection by glycol About freeze protection by glycol Adding glycol to the water lowers the freezing point of water. WARNING Ethylene glycol is toxic. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 79 Add glycol according to the table below. Lowest expected outdoor Prevent from bursting Prevent from freezing temperature –5°C –10°C –15°C –20°C — –25°C — –30°C — EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 80 To protect the field piping against freezing, install the following parts: a Automatic air intake b Freeze protection valve (optional – field supply) c Normally closed valves (recommended – field supply) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 81: To Fill The Domestic Hot Water Tank
For piping in free air, it is recommended to use the insulation thickness as shown in below table as a minimum (with λ=0.039 W/mK). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 82 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 83: Electrical Installation
"9.3 Connections to the indoor unit" [ 95] 9.1.1 Precautions when connecting the electrical wiring DANGER: RISK OF ELECTROCUTION WARNING ALWAYS use multicore cable for power supply cables. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 84: Guidelines When Connecting The Electrical Wiring
Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 85 1.47 ±10% M4 (earth) Indoor unit: Item Tightening torque (N•m) 2.45 ±10% 0.88 ±10% 0.88 ±10% 2.45 ±10% X10M 0.88 ±10% M4 (earth) 1.47 ±10% EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 86: About Electrical Compliance
OFF mode. At that moment, the outdoor unit compressor will NOT operate. The wiring to the unit is different depending on whether the power supply is interrupted or NOT. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 87: Overview Of Electrical Connections Except External Actuators
"9.2.1 To connect the electrical wiring to the outdoor unit" [ 88]. Interconnection cable Drain tube heater cable Connection for power saving function (only for V3 models) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 88: To Connect The Electrical Wiring To The Outdoor Unit
1 Power supply cable: ▪ Route the cable through the frame. ▪ Connect the wires to the terminal block. ▪ Fix the cable with a cable tie. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 89 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 90 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 91 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 92 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 93 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 94: 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 95: 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 96 ▪ 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 97: To Connect The Main Power Supply
9.3.1 To connect the main power supply 1 Open the following (see "7.2.5 To open the indoor unit" [ 54]): 1 Top panel 2 User interface panel 3 Upper switch box cover EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 98 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 Connect X11Y to X11YB. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 99: To Connect The Backup Heater Power Supply
9.3.2 To connect the backup heater power supply Backup heater type Power supply Wires 1N~ 230 V (6V3) 2+GND 3~ 230 V (6T1) 3+GND 3N~ 400 V 4+GND [9.3] Backup heater EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 100 Connect the backup heater power supply as follows: Q1DI a Factory-mounted cable connected to the contactor of the backup heater, inside the switch box (K5M) b Field wiring (see table below) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 101 C. K5M Safety contactor (in the lower switch box) Q1DI Earth leakage circuit breaker (field supply) SWB Switch box X6M Terminal (field supply) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 102: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 103: To Connect The Electricity Meters
2 User interface panel 3 Upper switch box cover 2 Connect the electricity meters cable to the appropriate terminals as shown in the illustration below. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 104: To Connect The Domestic Hot Water Pump
3 Upper switch box cover 2 Connect the domestic hot water pump cable to the appropriate terminals as shown in the illustration below. M M2P EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 105: To Connect The Alarm Output
2 Connect the alarm output cable to the appropriate terminals as shown in the illustration below. Wires connected to the alarm output Wire between X2M and A4P Installation of EKRP1HBAA is required. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 106: To Connect The Space Cooling/Heating On/Off Output
Wires connected to the space cooling/heating ON/OFF output Wire between X2M and A4P Installation of EKRP1HBAA is required. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 107: To Connect The Changeover To External Heat Source
2 User interface panel 3 Upper switch box cover 2 Connect the changeover to external heat source cable to the appropriate terminals as shown in the illustration below. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 108: To Connect The Power Consumption Digital Inputs
2 User interface panel 3 Upper switch box cover 2 Connect the power consumption digital inputs cable to the appropriate terminals as shown in the illustration below. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 109: To Connect The Safety Thermostat (Normally Closed Contact)
3 Upper switch box cover Main zone Wires: 2×0.75 mm² — 2 Connect the safety thermostat (normally closed) cable to the appropriate terminals as shown in the illustration below. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 110 4 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 111: To Connect A Smart Grid
Smart Grid contact Smart Grid operation mode Free running Forced off Recommended on Forced on The use of a Smart Grid pulse meter is not mandatory: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 112 1 Top panel 2 User interface panel 3 Upper switch box cover 2 Connect the wiring as follows: X5M.4 X5M.3 X5M.10 S10S X5M.9 X5M.6 S11S X5M.5 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 113 Screws for X10M b Screws for K1A and K2A c Sticker to put on the high voltage wires d Wires between the relays and X5M (AWG22 ORG) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 114 1314 3 Connect the high voltage wiring as follows: X10M.1 X10M.2 X10M.3 X10M.4 High voltage Smart Grid contact 1 High voltage Smart Grid contact 2 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 115: To Connect The Wlan Cartridge (Delivered As Accessory)
To prevent water ingress to the switch box, seal the low voltage wiring intake using the sealing tape (delivered as accessory). Without low voltage cables With low voltage cables EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 116: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 117: 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 118 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 119: To Connect The Pc Cable To The Switch Box
This way you can set the most important initial settings. This way the unit will be able to run properly. Afterwards, more detailed settings can be done via the menu structure if required. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 120 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) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 121: Possible Screens
Hysteresis [5.9] and [5.A] 10.3 Possible screens 10.3.1 Possible screens: Overview The most common screens are as follows: – a Home screen b Main menu screen EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 122: Home Screen
Smart energy is available via solar panels or smart grid. Smart energy is currently being used for space heating. Smart energy is currently being used for domestic hot water. Space operation mode Cooling Heating EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 123 Installed heat emitter type: Underfloor heating Fancoil unit Radiator Measured room temperature Leaving water temperature setpoint Holiday mode Holiday mode active EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 124: Main Menu Screen
Enable/disable breadcrumbs. Submenu Description Malfunctioning Restriction: Only displayed if a malfunction occurs. "14.4.1 To display the help text in case of malfunction" [ 234] for more information. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 125: Menu Screen
Restriction: Only displayed if a wireless LAN (WLAN) is installed. Contains settings needed when configuring the Daikin Residential Controller app. 10.3.4 Menu screen Example: Language Time/date Holiday EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 126: Setpoint Screen
Measured by the unit Desired temperature Turn the right dial to increase/ decrease. Submenu Turn or press the left dial to go to the submenu. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 127: Detailed Screen With Values
5 Program the schedule for Saturday and copy it to Sunday. 6 Give the schedule a name. To go to the schedule 1 Go to [1.1]: Room > Schedule. 2 Set scheduling to Yes. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 128 Edit Copy 3 Select OK to confirm. To program the schedule for Monday 1 Select Monday. User defined 1 2 Select Edit. Delete Edit Copy EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 129 1 Select Monday. User defined 1 2 Select Copy. Delete Edit Copy Result: Next to the copied day, "C" is displayed. 3 Select Tuesday. User defined 1 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 130 8:00 21°C 23:00 18°C --:-- 4 Confirm the changes. 5 Select Saturday. 6 Select Copy. 7 Select Sunday. 8 Select Paste. Result: User defined 1 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 131: Weather-Dependent Curve
EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 132: 2-Points Curve
See "10.4.4 Using weather-dependent curves" [ 134]. 10.4.2 2-points curve Define the weather-dependent curve with these two setpoints: ▪ Setpoint (X1, Y2) ▪ Setpoint (X2, Y1) Example EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 133: Slope-Offset Curve
Examples Weather-dependent curve when slope is selected: Weather-dependent curve when offset is selected: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 134: Using Weather-Dependent Curves
10.4.4 Using weather-dependent curves Configure weather-dependent curves as following: To define the setpoint mode To use the weather-dependent curve, you need to define the correct setpoint mode: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 135 You cannot configure the curve with temperatures that are higher or lower than the set maximum and minimum setpoints for that zone or for the tank. When the maximum or minimum setpoint is reached, the curve flattens out. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 136: Settings Menu
To display the error code, open the menu screen and go to [0] Malfunctioning. Press more information about the error. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 137: Room
Example" [ 127]. Cooling schedule Only applicable for reversible models. Define a cooling schedule of the room temperature in [1.3] Cooling schedule. "10.3.7 Schedule screen: Example" [ 127]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 138 Under leaving water temperature control, room frost protection is NOT guaranteed. However, if room antifrost [2‑06] is activated, limited frost protection by the unit is possible: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 139 ▪ Outdoor ambient temperature drops below 6°C ▪ the temperature setpoint of the leaving water will be lowered. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 140 When adjusting the room temperature ranges, all desired room temperatures are also adjusted to guarantee they are between the limits. Code Description [1.5.1] [3-07] Heating minimum [1.5.2] [3-06] Heating maximum [1.5.3] [3-09] Cooling minimum EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 141: 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: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 142 Define a heating temperature schedule for the main zone via [2.2] Heating schedule. "10.3.7 Schedule screen: Example" [ 127]. Cooling schedule Define a cooling temperature schedule for the main zone via [2.3] Cooling schedule. "10.3.7 Schedule screen: Example" [ 127]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 143 10°C. Heating WD curve Set weather-dependent heating for the main zone (if [2.4]=1 or 2): EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 144 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 145 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 146 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 147 [2.8.1] [9-01] Heating minimum: ▪ 15°C~37°C [2.8.2] [9-00] Heating maximum: ▪ [2‑0C]=2 (emitter type main zone = radiator) 37°C~65°C ▪ Else: 37°C~55°C EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 148 ▪ [C‑07]=1 (External room thermostat) a User interface at indoor unit b External room thermostat at main zone c External room thermostat at additional zone EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 149 In heating, the target delta T will only be achieved after some operation time, when the setpoint is being reached, because of the big difference between leaving water temperature setpoint and inlet temperature at startup. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 150 [8‑05] Modulation: ▪ 0 No (disabled) ▪ 1 Yes (enabled) Note: The desired leaving water temperature can only be read out on the user interface. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 151 The shut off valve: ▪ 0 No: is NOT influenced by heating or cooling demand. ▪ 1 Yes: closes when there is NO heating or cooling demand. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 152: Additional Zone
[3.B] Delta T [3.C] WD curve type Setpoint screen Control the leaving water temperature for the additional zone via setpoint screen [3] Additional zone. "10.3.5 Setpoint screen" [ 126]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 153 Setpoint mode: ▪ Fixed ▪ WD heating, fixed cooling ▪ Weather dependent Heating WD curve Set weather-dependent heating for the additional zone (if [3.4]=1 or 2): EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 154 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 155 [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 65°C Fixed 10°C EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 156 (X2M/35a) ▪ 2: 2 contacts. Connected to 2 digital inputs (X2M/34a and X2M/35a) Leaving water temperature: Delta T For more information, see "10.5.3 Main zone" [ 141]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 157: Space Heating/Cooling
[4.4] Number of zones [4.5] Pump operation mode [4.6] Unit type [4.7] or [4.8] Pump limitation [4.9] Pump outside range [4.A] Increase around 0°C [4.B] Overshoot [4.C] Antifrost EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 158 ▪ Space cooling off temperature The outdoor temperature is time-averaged. If the outdoor temperature drops, the operation mode will switch to heating and vice versa. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 159 Only applicable when Automatic is selected and the system is configured in room thermostat control with 1 leaving water temperature zone and quick heat emitters. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 160 Code Description [4.4] [7‑02] ▪ 0: Single zone Only one leaving water temperature zone: a Main LWT zone EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 161 When the space heating/cooling operation is OFF, the pump is always OFF. When space heating/cooling operation is ON, you have the choice between these operation modes: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 162 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 163 [9-0E] Pump limitation Main zone Possible values: see below. [4.8.2] [9-0D] Pump limitation Additional zone Possible values: see below. Possible values: Value Description No limitation EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 164 The maximum values depend on the unit type: [9-0D]/[9-0E]=0 [9-0D]/[9-0E]=1/5 a (kPa) a (kPa) b (l/min) b (l/min) [9-0D]/[9-0E]=2/6 [9-0D]/[9-0E]=3/7 a (kPa) a (kPa) b (l/min) b (l/min) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 165 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 166: Tank
Antifrost [1.4] or [4.C] prevents the room from getting too cold. For more information about room frost protection, see "10.5.2 Room" [ 137]. 10.5.6 Tank Overview The following items are listed in the submenu: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 167 When powerful operation is active, the risk of space heating/cooling and capacity shortage comfort problems is significant. In case of frequent domestic hot water operation, frequent and long space heating/cooling interruptions will happen. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 168 The domestic hot water can be prepared in 3 different ways. They differ from each other by the way the desired tank temperature is set and how the unit acts upon it. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 169 ▪ 4: Thursday ▪ 5: Friday ▪ 6: Saturday ▪ 7: Sunday [5.7.3] [2‑02] Start time [5.7.4] [2‑03] Tank setpoint: 60°C [5.7.5] [2‑04] Duration: 40~60 minutes EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 170 The maximum temperature that users can select for the domestic hot water. You can use this setting to limit the temperatures at the hot water taps. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 171 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 172 Description [5.D] [6-01] The temperature difference determining the heat pump OFF temperature. Range: 0°C~10°C Example: setpoint (T )>maximum heat pump temperature–[6‑01] (T –[6‑01]) HP MAX EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 173 In [2.E] WD curve type, you can choose which method you want to use. In [5.E] WD curve type, the chosen method is shown read-only (same value as in [2.E]). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 174: User Settings
Setting the starting date and ending date of your holiday. Activating the holiday mode. To check if holiday mode is activated and/or running is displayed on the home screen, holiday mode is active. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 175 To use quiet mode 1 Go to [7.4.1]: User settings > Quiet > Activation. 2 Do one of the following: — EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 176 Price value ranging from 0.00~990 valuta/kWh (with 2 significant values). To set the electricity price 1 Go to [7.5.1]/[7.5.2]/[7.5.3]: User settings > Electricity price > High/Medium/Low. 2 Select the correct electricity price. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 177 Example This is an example and the prices and/or values used in this example are NOT accurate. Data Price/kWh Gas price 4.08 Electricity price 12.49 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 178: Information
Reset the configuration settings stored in the MMI (user interface of the indoor unit). Example: Energy meterings, holiday settings. INFORMATION This does not reset the configuration settings and field settings of the indoor unit. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 179: Installer Settings
LAN adapter. [8.9] Running hours Running hours of specific system components 10.5.9 Installer settings Overview The following items are listed in the submenu: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 180 • [E-05]: Can the system prepare domestic hot water? • [E-06]: Is a domestic hot water tank installed in the system? • [E-07]: What kind of domestic hot water tank is installed? EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 181 ▪ For a 6V model, this can be set to: 230V, 1ph 230V, 3ph ▪ For a 9W model, this is fixed to 400V, 3ph. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 182 Only for systems with integrated domestic hot water tank: If the storage temperature setpoint is higher than 50°C, 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 domestic hot water tank.
Page 183 When Emergency is set to Automatic and a heat pump failure occurs, the backup heater automatically takes over the domestic hot water production and space heating. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 184 Heat pump operation is NOT possible ▪ Cooling is NOT possible Code Description [9.5.2] [7-06] Activation of the Compressor forced off mode: ▪ 0: disabled ▪ 1: enabled EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 185 (because the heat exchanger coil is not operational) with a warmer top layer. Range: 0°C~20°C EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 186 Range: 0~10 hours Remark: The minimum time is 0.5 hours even when the selected value is 0. [9.6.5] [8-00] Minimum running timer: Do NOT change. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 187 It is ONLY possible to disable water pipe freeze prevention if glycol is selected in the settings of the unit: [E-0D]=1.For more information on freeze protection by glycol, "8.2.6 To protect the water circuit against freezing" [ 78]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 188 Therefore, always enable the auto restart function. ▪ 3 Smart grid: A Smart Grid is connected to the system EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 189 Yes: The extra energy from the photovoltaic panels is buffered in the DHW tank, and in the space heating/cooling circuit (i.e. heat up or cool down the room). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 190 The protective functions (water pipe freeze prevention, drain prevention, room frost protection, tank disinfection) and defrost are NOT overruled (capacity will not be limited for these functions) Also see "Protective functions" [ 200]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 191 ▪ 0 Amp: The limitation values are set in A. ▪ 1 kW: The limitation values are set in kW. Limit when [9.9.1]=Continuous and [9.9.2]=Amp: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 192 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 193 (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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 194 5 1000/kWh: Installed In case of pulse meter for photovoltaic panels: ▪ 6 100/kWh for PV panel: Installed ▪ 7 1000/kWh for PV panel: Installed EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 195 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 196 [C‑03] or above [C‑03]+[C‑04]. calc 3°C Fixed hysteresis to prevent too much switching between heat pump system and auxiliary boiler a Auxiliary boiler active EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 197 Make sure to use the same units of measurement for the electricity price and gas price (example: both c€/kWh). 2 Determine the value of [C‑03] using the graph. For an example, see the table legend. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 198 Depending on the used boiler, this should be chosen as follows: Code Description [9.C.2] [7‑05] ▪ 0: Very high ▪ 1: High ▪ 2: Medium ▪ 3: Low ▪ 4: Very low EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 199 PCB make sure to connect X804A to X806A. For more information, see "In case of V3 models" [ 88]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 200 Do you want to start a defrost operation? ▪ Back ▪ NOTICE Forced defrost start-up. You can only start forced defrost when the heating operation has been running for a while. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 201: Commissioning
Installer settings [A.1] Operation test run Commissioning [A.2] Actuator test run User profile Operation [A.3] Air purge [A.4] UFH screed dryout About commissioning See: "11 Commissioning" [ 207] EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 202: User Profile
[D] Wireless gateway User profile Operation [D.1] Mode Wireless gateway [D.2] Reboot Malfunctioning Room [D.3] WPS [D.4] Remove from cloud [D.5] Home network connection [D.6] Cloud connection EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 203 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 204 Connected to [WLAN_SSID] Cloud connection: Read out the status of the connection to the cloud. Code Description [D.6] Cloud connection: ▪ Not connected ▪ Connected EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 205: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 206: Menu Structure: Overview Installer Settings
Solar kit settings are shown but are NOT applicable for this unit. Settings shall NOT be used or changed. INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 207: Commissioning
NOT applicable. 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 208: Precautions When Commissioning
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 209: Checklist During Commissioning
To check the minimum flow rate: main zone (recommended) INFORMATION The pump of the additional zone ensures that the minimum flow rate for correct operation of the unit is guaranteed. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 210: Air Purge Function
Purging the air from the system should consist of: Performing a manual air purge for both zones Performing an automatic air purge for both zones EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 211 Indoor unit c Backup heater d Domestic hot water tank M1S 3-way valve (mixing valve for the main/mixed zone) M3S 3-way valve (space heating/domestic hot water) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 212 3 In the menu, set Type = Automatic. 4 Select Start air purge. 5 Select OK to confirm. Result: The air purge starts. It stops automatically when done. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 213: Operation Test Run
(heating/cooling mode) and tank temperature (domestic hot water mode). To monitor the temperatures: 1 In the menu, go to Sensors. 2 Select the temperature information. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 214: Actuator Test Run
The underfloor heating (UFH) screed dryout function is used for drying out the screed of an underfloor heating system during the construction of the building. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 215 Scroll through the schedule. ▪ Adjust the duration (between 1 and 72 hours) and temperatures (between 15°C and 55°C). 4 Press the left dial to save the schedule. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 216 2 Select OK to confirm. To read out the status of an underfloor heating screed dryout Conditions: You are performing an underfloor heating screed dryout. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 217 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 218: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 219: 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. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 220: Yearly Maintenance
13.3.4 Yearly maintenance indoor unit: instructions Water pressure Keep water pressure above 1 bar. If it is lower, add water. Water filters Clean the water filters. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 221 5 Close the drain valve. 6 Screw the drain cap back on. 7 Reattach the magnetic sleeve. 8 Check the pressure of the water circuit. If required, add water. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 222 Flush and clean the complete tank, including the piping between the relief valve and cold water inlet. To make sure this water originates from the tank, check after a tank heat up cycle. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 223: To Drain The Domestic Hot Water Tank
3 Remove the stop from the access point to the tank. 4 Use a drain hose and a pump to drain the tank via the access point. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 224: About Cleaning The Water Filter In Case Of Trouble
13.5.2 To clean the water filter in case of trouble 1 Remove the water filter from the unit. See "13.5.1 To remove the water filter" [ 224]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 225 Correctly install the strainer in the magnetic filter/dirt separator housing using the protrusions. a Rolled‑up filter b Strainer c Protrusion 5 Install and properly tighten the bottom of the water filter housing. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 226: To Install The Water Filter
Make sure to open the valve (if equipped) towards the expansion vessel, otherwise the overpressure will be generated. 5 Open the stop valves and add water to the water circuit if needed. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 227: Troubleshooting
If you are unable to find the cause of the problem, call your dealer. DANGER: RISK OF ELECTROCUTION EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 228: Solving Problems Based On Symptoms
Make sure that the water volume in the too low installation is above the minimum required value (see "8.1.3 To check the water volume and flow rate" [ 70]). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 229: Symptom: Hot Water Does Not Reach The Desired Temperature
Perform hydraulic balancing to assure that the flow is correctly distributed between the emitters. hydraulic balancing sufficient, change pump limitation settings ([9-0D] and [9-0E] if applicable). EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 230: Symptom: The Pump Is Blocked
If you cannot deblock the rotor of the pump with this method, you will need to disassemble the pump and turn the rotor by hand. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 231: Symptom: The Pump Is Making Noise (Cavitation)
0 m. The maximum water circuit head is 10 m. Check the installation requirements. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 232: Symptom: The Water Pressure Relief Valve Leaks
> Backup heater > Equilibrium temperature [5‑01] There is air in the system. Purge air manually or automatically. See the air purge function in the chapter "11 Commissioning" [ 207]. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 233: Symptom: The Pressure At The Tapping Point Is Temporarily Unusually High
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 234: Solving Problems Based On Error Codes
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 235 OU: PCB defect E2-00 Leakage current detection error E3-00 OU: Actuation of high pressure switch (HPS) E3-24 High pressure switch abnormality E4-00 Abnormal suction pressure EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 236 OU: Malfunction of heat exchanger thermistor J6-32 Leaving water temperature thermistor Abnormality (outdoor unit) J6-33 Sensor communication error J6-36 OU: Malfunction of injection thermistor J8-00 Malfunction of refrigerant liquid thermistor EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 237 File malfunction U8-06 MMI/bizone kit communication problem U8-07 P1P2 communication error UA-00 Indoor unit, outdoor unit matching problem UA-16 Extension/hydro communication problem UA-17 Tank type problem EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 238 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 239: Disposal
"7.3.6 To install the discharge grille" [ 61] ▪ "7.3.7 To remove the discharge grille, and put the grille in safety position" [ 63] 1 Make sure the unit is not running. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 240: To Manually Open The Electronic Expansion Valves
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 241: Recovery Mode - In Case Of 3N~ Models (7-Segments Display)
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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 242: Recovery Mode - In Case Of 1N~ Models (7-Leds Display)
Before recovering refrigerant, make sure the electronic expansion valves are open. When power is ON, this has to be done by using the recovery mode. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 243 Result: The recovery mode is activated. The unit opens the electronic expansion valves. To deactivate the recovery mode After recovering refrigerant, deactivate the recovery mode as follows: EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 244 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 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 245: Technical Data
This unit is a heating only model. Therefore, all references to cooling in this document are NOT applicable. 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 246: 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 EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 247: 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) Q1E Overload EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 248: Piping Diagram: Indoor Unit
Magnetic filter/dirt separator S1L Flow switch i Safety valve Screw connection j Air purge Flare connection k Drain valve Quick coupling l Pump (additional/direct zone) Brazed connection EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 249: Wiring Diagram: Outdoor Unit
See note *** See note *** Only for *W1 models. Notes: Symbols: Live Neutral Protective earth Noiseless earth Field wiring Option Terminal strip Terminal Connector Connection EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 250 K1R (A1P) Magnetic relay (Y1S) K1R (A4P) Magnetic relay (E1HHEX) K2R (A1P) Magnetic relay (Y2S) K2R (A4P) Magnetic relay (E1H) K3R (A1P) Magnetic relay (Y3S) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 251 Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) Solenoid valve (hot gas bypass) Solenoid valve (liquid injection) Z1C~Z11C Noise filter (ferrite core) Z1F~Z5F (A1P, A2P) Noise filter EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 252 Thermistor (compressor discharge) Thermistor (compressor suction) Thermistor (air heat exchanger, liquid pipe) Thermistor (air heat exchanger, middle) Thermistor (refrigerant liquid) Thermistor (injection) Thermistor (entering water) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 253 Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) Solenoid valve (hot gas bypass) Solenoid valve (liquid injection) Z1C~Z11C Noise filter (ferrite core) Z1F~Z6F (A1P, A2P) Noise filter EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 254: Wiring Diagram: Indoor Unit
Safety thermostat Smart Grid Smart Grid WLAN module WLAN module WLAN cartridge WLAN cartridge Main LWT Main leaving water temperature On/OFF thermostat (wired) ON/OFF thermostat (wired) EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 255 Safety contactor backup heater Relay 3-way valve bypass Relay 3-way valve flow K*R (A4P) Relay on PCB # Domestic hot water pump # 2-way valve for cooling mode EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 256 PCB) supplied by PCB) Switch box Use normal kWh rate power supply for Use normal kWh rate power supply for indoor unit indoor unit EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 257 Switch box (7) Option PCBs (7) Option PCBs Alarm output Alarm output Changeover to ext. heat source Changeover to external heat source Max. load Maximum load EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 258 Only for heat pump convector Only for wired On/OFF thermostat Only for wired ON/OFF thermostat Only for wireless On/OFF thermostat Only for wireless ON/OFF thermostat EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 259 Power limitation demand input 4 A8P: X801M: 4-5 signal Only for Human Comfort Interface 2 core 2×0.75 X5M: 11-12 A14P: P1-P2 user interface communication 4D133017B EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 260: Esp Curve: Indoor Unit
See also the minimum and maximum allowed water flow range in the technical specifications. ▪ Make sure water quality complies with EU directive 2020/2184. EPRA08~12EAV3+W1 + ETVZ12S18+23EA6V+9W Installer reference guide Daikin Altherma 3 H MT F 4P634887-1 – 2021.03...
Page 261: 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 262: Field Settings Table
1/12 Field settings table Applicable indoor units ETVZ12S18EA6V ETVZ12S23EA6V ETVZ12S18EA9W ETVZ12S23EA9W Notes (*1) *6V (*2) *9W (*3) + EKHVCONV4 (*4) *18* (*5) *23* 4P634892-1 - 2021.03...
Page 263 2/12 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 264 3/12 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 (*3) Main zone WD curve type...
Page 265 4/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [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 [9-04] Overshoot...
Page 266 5/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.1.4.2 [4-0A] Configuration 0: 1 1: 1/1+2 (*1) (*2) 2: 1/2 3: 1/2 + 1/1+2 in emergency 9.1.4.3 [6-03] Capacity step 1 0~10kW, step: 0,2kW...
Page 267 6/12 Installer setting at variance with Field settings table default value Breadcrumb Field code 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 268 7/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.9.8 [5-09] Limit 0~20 kW, step: 0,5 kW 20 kW 9.9.9 [5-09] Limit 1 0~20 kW, step: 0,5 kW 20 kW 9.9.A [5-0A]...
Page 269 8/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [1-02] Leaving water value for low ambient temp. for LWT main zone heating WD curve. [9-01]~[9-00], step: 1°C [2-0C]=0: 35°C [2-0C]=1:...
Page 270 9/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [3-0A] [4-00] What is the BUH operation mode? 0: Disabled 1: Enabled 2: Only DHW [4-01] Which electric heater has priority? 0: None 1: BSH 2: BUH...
Page 271 10/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [7-00] Domestic hot water booster heater overshoot temperature. 0~4°C, step: 1°C 0°C [7-01] Domestic hot water booster heater hysteresis. 2~40°C, step: 1°C 2°C [7-02]...
Page 272 11/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [C-01] [C-02] Is an external backup heat source connected? 0: No 1: Bivalent [C-03] Bivalent activation temperature. -25~25°C, step: 1°C 0°C [C-04] Bivalent hysteresis temperature.
Page 273 12/12 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [F-06] [F-07] [F-08] [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]...
Page 276 4P634887-1 2021.03 Verantwortung für Energie und Umwelt...

This manual is also suitable for:

Epra08eav3 Epra10eav3 Epra12eav3 Epra08eaw1 Epra10eaw1 Epra12eaw1 ... Show all

Daikin Altherma 3 H MT F Installer's Reference Manual

1 About the Documentation

2 General Safety Precautions

3 Specific Installer Safety Instructions

4 About the Box

5 About the Units and Options

6 Application Guidelines

7 Unit Installation

8 Piping Installation

9 Electrical Installation

10 Configuration

11 Commissioning

12 Hand-Over to the User

13 Maintenance and Service

14 Troubleshooting

15 Disposal

16 Technical Data

17 Glossary

18 Field Settings Table

Quick Links

Related Manuals for Daikin Altherma 3 H MT F

Summary of Contents for Daikin Altherma 3 H MT F