Page 1 Installer reference guide Daikin Altherma 3 H HT F https://daikintechnicaldatahub.eu EPRA14DAV3 ETVH16S18DA6V(G) EPRA16DAV3 ETVH16S23DA6V(G) EPRA18DAV3 ETVH16S18DA9W(G) ETVH16S23DA9W(G) EPRA14DAW1 ETVX16S18DA6V(G) EPRA16DAW1 ETVX16S23DA6V(G) EPRA18DAW1 ETVX16S18DA9W(G) ETVX16S23DA9W(G)
Page 2: Table Of Contents
Additional installation site requirements of the outdoor unit in cold climates..........57 6.1.3 Installation site requirements of the indoor unit ..................57 Opening and closing the units ............................58 Installer reference guide EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 3 Configuration wizard............................... 118 Possible screens ................................119 9.3.1 Possible screens: Overview ..........................119 9.3.2 Home screen..............................120 9.3.3 Main menu screen............................123 9.3.4 Menu screen..............................124 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 4 Solving problems based on error codes ......................... 224 13.4.1 To display the help text in case of a malfunction ..................225 13.4.2 Error codes: Overview ............................ 225 14 Disposal Installer reference guide EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 5 Piping diagram: Indoor unit ............................235 15.4 Wiring diagram: Outdoor unit ............................236 15.5 Wiring diagram: Indoor unit ............................241 16 Glossary 17 Field settings table EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 6: General Safety Precautions
Indicates a situation that could result in death or serious injury. WARNING: FLAMMABLE MATERIAL CAUTION Indicates a situation that could result in minor or moderate injury. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 7: For The Installer
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 8: Installation Site
▪ In places where there is a risk of fire due to the leakage of flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 9: Refrigerant - In Case Of R410A Or R32
To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant. ▪ When the refrigerant system is to be opened, refrigerant MUST be treated according to the applicable legislation. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 10: Water
If applicable. See the installation manual or installer reference guide of your application for more information. NOTICE Make sure water quality complies with EU directive 98/83 EC. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 11: Electrical
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 12 Running the product in reversed phase can break the compressor and other parts. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 13: About The Documentation
Format: Paper (in the box of the indoor unit) + Digital files on http:// www.daikineurope.com/support-and-manuals/product-information/ Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer. The original documentation is written in English. All other languages are translations. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Page 14: Installer Reference Guide At A Glance
About the documentation Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required).
Page 15 Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 16: About The Box
To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. Crane Keep the slings within the marked area to not damage the unit. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 17 After unpacking, carry the unit using the slings attached to the unit. See also: ▪ "To unpack the outdoor unit" [ 18] ▪ "To install the outdoor unit" [ 64] ±150 4× EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 18: To Unpack The Outdoor Unit
About the box 3.2.2 To unpack the outdoor unit a, b Accessories EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 19: To Remove The Accessories From The Outdoor Unit
Installation manual – Discharge grille NOTICE Unpacking. When you remove the top packaging/accessories, hold the box containing the discharge grille to prevent it from falling. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 20: Indoor Unit
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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 21: About The Units And Options
Location Model identification Example: EP R A 14 DA V3 Code Explanation European hydro-split outdoor pair heat pump High water temperature – ambient zone 2 (see operation range) Refrigerant R32 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 22: Identification Label: Indoor Unit
Certain options might not be available in your country. 4.3.1 Possible combinations of indoor unit and outdoor unit Indoor unit Outdoor unit EPRA14 EPRA16 EPRA18 ETVH/X16 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 23: Possible Options For The Outdoor Unit
To enable the power saving consumption control by digital inputs you must install the demand PCB. For installation instructions, see the installation manual of the demand PCB and addendum book for optional equipment. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 24 Use the system in various Smart Grid applications. For installation instructions, see the installation manual of the LAN adapter and the addendum book for optional equipment. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 25 For installation instructions, see the installation and operation manual of the Human Comfort Interface (HCI) as room thermostat. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 26: 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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 27: Setting Up The Space Heating/Cooling System
Automatic. NOTICE An overpressure bypass valve can be integrated in the system. Keep in mind that this valve might not be shown on the illustrations. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 28: Single Room
For your daily needs, you can use preset values and schedules. To deviate from your daily needs, you can temporarily overrule the preset values and schedules, or use the holiday mode. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 29 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 30 Benefits ▪ Cooling. The heat pump convector offers, besides heating capacity, also excellent cooling capacity. ▪ Efficiency. Optimal energy efficiency because of the interlink function. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 31 The shut-off valve Configuration Setting Value Unit temperature control: 1 (External room thermostat): Unit operation is decided by the ▪ #: [2.9] external thermostat. ▪ Code: [C-07] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 32: Multiple Rooms - One Lwt Zone
Setup A Main leaving water temperature zone B Room 1 C Room 2 a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 33 98] ▪ For each room, a shut-off valve (field supplied) is installed to avoid leaving water supply when there is no heating or cooling demand. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 34 ▪ For more information about connecting the electrical wiring to the unit, see: "8.2 Connections to the outdoor unit" [ 91] "8.3 Connections to the indoor unit" [ 98] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 35 Combination: Underfloor heating + Heat pump convectors – Multiple rooms Setup A Main leaving water temperature zone B Room 1 C Room 2 a External room thermostat b Heat pump convectors (+ controllers) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 36: Multiple Rooms - Two Lwt Zones
Main zone = Zone with the lowest design temperature in heating, and the highest design temperature in cooling ▪ Additional zone = Zone with the highest design temperature in heating, and the lowest design temperature in cooling EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 37 ▪ For more information about connecting the electrical wiring to the unit, see: "8.2 Connections to the outdoor unit" [ 91] "8.3 Connections to the indoor unit" [ 98] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 38 Set to follow the thermo demand of the main zone. Shut-off valve If the main zone must be shut off during cooling mode to prevent condensation on the floor, set it accordingly. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 39: Setting Up An Auxiliary Heat Source For Space Heating
During heating operation of the auxiliary boiler, the auxiliary boiler operates to achieve the desired water temperature set via the auxiliary boiler controller. Setup ▪ Integrate the auxiliary boiler as follows: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 40 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 41 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 (°C) –30 –25 –20 –15 –10 –5 (°C) Outdoor temperature Minimum weather-dependent setpoint for auxiliary gas boiler EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 42: Setting Up The Domestic Hot Water Tank
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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 43 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 44: Setup And Configuration - Dhw Tank
For more information, see "9 Configuration" [ 115]. ▪ You can program a schedule to control the DHW pump via the user interface. For more information, see the user reference guide. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 45: Dhw Pump For Disinfection
You can read out the energy data: For space heating For space cooling For domestic hot water production ▪ You can read out the energy data: Per month Per year EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 46: Produced Heat
INFORMATION When measuring the electrical power consumption, make sure ALL power input of the system is covered by the electrical power meters. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 47: Normal Kwh Rate Power Supply
Indoor unit (L e Outdoor unit (L f Backup heater (L f Indoor unit (L g Booster heater (L g Backup heater (L h Booster heater (L EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 48: Preferential Kwh Rate Power Supply
Single-phase outdoor unit with a three-phase backup heater: 58 0 58 0 1 5 0 1 5 0      A Outdoor unit B Indoor unit C DHW tank EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 49: Setting Up The Power Consumption Control
Permanent power limitation is useful to assure a maximum power or current input of the system. In some countries, legislation limits the maximum power consumption for space heating and DHW production. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 50: Power Limitation Activated By Digital Inputs
5.6.2 Power limitation activated by digital inputs Power limitation is also useful in combination with an energy management system. The power or current of the entire Daikin system is limited dynamically by digital inputs (maximum four steps). Each power limitation level is set via the user interface by limiting one of the following: ▪...
Page 51: Power Limitation Process
If the configuration is as follows: Power limitation level does NOT allow operation of backup heater (step 1). Then power consumption is limited as follows: Produced heat Consumed energy EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 52: Bbr16 Power Limitation
You can connect one external temperature sensor. It measures the indoor or outdoor ambient temperature. We recommend to use an external temperature sensor in the following cases: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 53 To protect the outdoor unit, the internal sensor of the outdoor unit is always used. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 54: Unit Installation
Mind the spacing guidelines. See "15.1 Service space: Outdoor unit" [ 233]. NOTICE ▪ Do NOT stack the units on each other. ▪ Do NOT hang the unit on a ceiling. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 55 This is to prevent corrosion caused by high levels of salt in the air, which might shorten the life of the unit. Install the outdoor unit away from direct sea winds. Example: Behind the building. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 56 WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Page 57: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Heating only models + conversion kit (EKHVCONV2) ▪ Mind the measurement guidelines: Maximum height difference between indoor unit and outdoor 10 m unit Maximum total water piping length 50 m EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 58: 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 59: To Remove The Transportation Stay
3 Remove the transportation stays (2×), and dispose of them. 6.2.4 To close the outdoor unit NOTICE When closing the outdoor unit cover, make sure that the tightening torque does NOT exceed 4.1 N•m. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 60: To Open The Indoor Unit
NOTICE If you remove the user interface panel, also disconnect the cables from the back of the user interface panel to prevent damage. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 61 ▪ When you need access to the high voltage switch box 2× 5 If you need access to the high voltage components, remove the high voltage switch box cover. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 62: To Lower The Switch Box On The Indoor Unit
2 Tilt the switch box to the front and lift it out of its hinges. 2× 3 Place the switch box lower on the unit. Use the 2 hinges located lower on the unit. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 63: To Close The Indoor Unit
Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise. Fix the unit securely by means of foundation bolts in accordance with the foundation drawing. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 64: To Install The Outdoor Unit
Make sure not to cover the drain hole in the bottom plate of the unit. 6.3.4 To install the outdoor unit 1 Carry the unit by its slings, and put it onto the installation structure. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 65: To Provide Drainage
Install the unit on a base to make sure that there is proper drainage in order to avoid ice accumulation. ▪ Prepare a water drainage channel around the foundation to drain waste water away from the unit. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 66 O-ring (delivered as accessory) c Drain plug (delivered as accessory) d Hose (field supply) NOTICE O-ring. Make sure the O-ring is installed correctly to prevent leakage. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 67: To Install The Discharge Grille
4 Align and attach the left side. 5 Align and attach the middle part. 6 Align and attach the right side. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 68: To Remove The Discharge Grille, And Put The Grille In Safety Position
67] ▪ "To remove the discharge grille, and put the grille in safety position" [ 68] 1 Remove the upper part of the discharge grille. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 69 4 Align the ball stud and hook on the grille with their counterparts on the unit. 5 Insert the hook. 6 Insert the ball stud. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 70: Mounting The Indoor Unit
3 Slide the indoor unit into position. 4 Adjust the height of the leveling feet to compensate for floor irregularities. The maximum allowed deviation is 1°. ≤1° EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 71: To Connect The Drain Hose To The Drain
4 Reattach the side panel. Ensure the water can flow through the drain tube. It is recommended to use a tundish to collect the water. Option 1: Through the left side panel 3× EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 72 Unit installation Option 2: Through the right side panel 3× EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 73: Piping Installation
Closed circuit. Use the indoor unit ONLY in a closed water system. Using the system in an open water system will lead to excessive corrosion. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 74 Drainage – Pressure relief valve. Connect the drain hose properly to the drain to avoid water dripping out of the unit. See "To connect the drain hose to the drain" [ 71]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 75: Formula To Calculate The Expansion Vessel Pre-Pressure
7.1.3 To check the water volume and flow rate The indoor unit has an expansion vessel of 10 litre with a factory-set pre-pressure of 1 bar. To make sure that the unit operates properly: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 76 Use the following graph to determine the maximum water volume for the calculated pre-pressure. 200 220 A Pre-pressure (bar) B Maximum water volume (l) Water Water + glycol Example: Maximum water volume and expansion vessel pre-pressure EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 77 NOT be displayed on the user interface. In this case, the minimum flow rate can be checked by way of the pump test (check that the user interface does NOT display error 7H). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 78: Changing The Pre-Pressure Of The Expansion Vessel
Because the total water volume (250 l) is more than the default water volume (200 l), the pre-pressure must be decreased. ▪ The required pre-pressure is: Pg = (0.3+(H/10)) bar = (0.3+(0/10)) bar = 0.3 bar EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 79: Connecting Water Piping
Deformation of the piping can cause malfunctioning of the unit. Outdoor unit 1 Connect the shut-off valve (with integrated filter) to the outdoor unit water inlet, using thread sealant. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 80 Space heating/cooling – Water IN (screw connection, 1") a2 Space heating/cooling – Water OUT (screw connection, 1") b1 DHW – Cold water IN (screw connection, 3/4") EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 81 If this is NOT working correctly, overpressure will deform the tank and water leakage may occur. To confirm good operation, regular maintenance is required. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 82: To Connect The Recirculation Piping
Add glycol to the water. Glycol lowers the freezing point of the water. ▪ Install freeze protection valves. Freeze protection valves drain the water from the system before it can freeze. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 83 To prevent the system from freezing, more glycol is required. Add glycol according to the table below. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 84 To install freeze protection valves To protect the field piping against freezing, install the following parts: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 85: To Fill The Domestic Hot Water Tank
1 Open every hot water tap in turn to purge air from the system pipe work. 2 Open the cold water supply valve. 3 Close all water taps after all air is purged. 4 Check for water leaks. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 86: To Insulate The Water Piping
The Hydronic Piping Calculation tool is part of the Heating Solutions Navigator which can be reached via https://professional.standbyme.daikin.eu. Please contact your dealer if you have no access to Heating Solutions Navigator. This recommendation ensures good operation of the unit, however, local regulations may differ and shall be followed.
Page 87: Electrical Installation
DANGER: RISK OF ELECTROCUTION WARNING ALWAYS use multicore cable for power supply cables. INFORMATION Also read the precautions and requirements in the "1 General safety precautions" [ 6]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 88: Guidelines When Connecting The Electrical Wiring
Stranded conductor wire b Round crimp-style terminal ▪ Use the following methods for installing wires: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 89: About Electrical Compliance
E.g. time-of-use rates, seasonal rates, Wärmepumpentarif in Germany and Austria, ... EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 90: Overview Of Electrical Connections Except External Actuators
Preferential kWh rate power supply 1 Power supply for outdoor unit 2 Power supply and interconnection cable to indoor unit 3 Power supply for backup heater EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 91: Connections To The Outdoor Unit
An excessive strip length may cause electrical shock or leakage 3 Insert the cables at the back of the unit, and route them through the factory- mounted cable sleeves into the switch box. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
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) — EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 94 ▪ Connect the wires to the terminal block. ▪ Fix the cable with a cable tie. Wires: 3N+GND Maximum running current: Refer to name plate on unit. — EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 95 ▪ Connect the wires to the terminal block (make sure the numbers match with the numbers on the indoor unit) and the earth screw. ▪ Fix the cable with a cable tie. Wires: (3+GND)×1.5 mm² — EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 96 ▪ Fix the cable with cable ties. Wires: (2+GND)×0.75 mm². Wiring must be double insulated. Maximum power allowed for drain tube heater = 115 W (0.5 A) — EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 97: To Reposition The Air Thermistor On The Outdoor Unit
8.2.2 To reposition the air thermistor on the outdoor unit This procedure is only necessary in areas with low ambient temperatures. Required accessory (delivered with the unit): Thermistor fixture. Click EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 98: Connections To The Indoor Unit
Maximum running current: 100 mA For the main zone: ▪ [2.9] Control ▪ [2.A] Thermostat type For the additional zone: ▪ [3.A] Thermostat type ▪ [3.9] (read-only) Control EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 99 ▪ Installation manual of the remote indoor sensor ▪ Addendum book for optional equipment Wires: 2×0.75 mm² [9.B.1]=2 (External sensor = Room) [1.7] Room sensor offset EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 100 To allow for energy buffering in the domestic hot settings water tank, on the user interface, make sure to set [9.2.1]=4 (Domestic hot water = Integrated). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 101: To Connect The Main Power Supply
In case of normal kWh rate power supply Interconnection cable Wires: (3+GND)×1.5 mm² (= main power supply) — 1 2 3 1 2 3 X11YB X11YA X11Y a Interconnection cable (=main power supply) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 102 Interconnection cable (=main power supply) b Normal kWh rate power supply c Preferential power supply contact 3 Fix the cables with cable ties to the cable tie mountings. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 103: To Connect The Backup Heater Power Supply
0.22 Ω 2 kW 3~ 230 V 5 A — 4 kW 3~ 230 V 10 A — 6 kW 3~ 230 V 15 A — 3 kW 3N~ 400 V 4 A — 6 kW 3N~ 400 V 9 A — 9 kW 3N~ 400 V 13 A — EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 104 Field wiring (see table below) Model (power supply) Connections to backup heater power supply *6V (6V: 1N~ 230 V) Q1DI 1N~, 50 Hz 230 V AC EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 105: To Connect The Shut-Off Valve
For more information, see the installer reference guide. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 106: To Connect The Electricity Meters
3 Fix the cable with cable ties to the cable tie mountings. 8.3.4 To connect the electricity meters Wires: 2 (per meter)×0.75 mm² Electricity meters: 12 V DC pulse detection (voltage supplied by PCB) [9.A] Energy metering EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 107: To Connect The Domestic Hot Water Pump
DHW pump output. Maximum load: 2 A (inrush), 230 V AC, 1 A (continuous) [9.2.2] DHW pump [9.2.3] DHW pump schedule 1 Open the following (see "To open the indoor unit" [ 60]): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 108: To Connect The Alarm Output
2 User interface panel 3 Upper switch box cover 2 Connect the alarm output cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 109: To Connect The Space Cooling/Heating On/Off Output
Heating only models + conversion kit (EKHVCONV2) Wires: (2+1)×0.75 mm² Maximum load: 0.3 A, 250 V AC — 1 Open the following (see "To open the indoor unit" [ 60]): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 110: To Connect The Changeover To External Heat Source
3 Fix the cable with cable ties to the cable tie mountings. 8.3.8 To connect the changeover to external heat source Wires: 2×0.75 mm² Maximum load: 0.3 A, 250 V AC Minimum load: 20 mA, 5 V DC [9.C] Bivalent EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 111: To Connect The Power Consumption Digital Inputs
[9.9] Power consumption control. 1 Open the following (see "To open the indoor unit" [ 60]): 1 Top panel 2 User interface panel 3 Upper switch box cover EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 112: To Connect The Safety Thermostat (Normally Closed Contact)
2 User interface panel 3 Upper switch box cover 2 Connect the safety thermostat (normally closed) cable to the appropriate terminals as shown in the illustration below. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 113: After Connecting The Electrical Wiring To The Indoor Unit
8.4 After connecting the electrical wiring to the indoor unit To prevent water ingress to the switch box, seal the low voltage wiring intake using the sealing tape (delivered as accessory). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 114 Electrical installation Without low voltage cables With low voltage cables EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 115: Configuration
First time – Configuration wizard. When you turn ON the user interface for the first time (via the unit), the configuration wizard starts to help you configure the system. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 116: To Access The Most Used Commands
Confirm the pin code and proceed. Installer pin code The Installer pin code is 5678. Additional menu items and installer settings are now available. Installer 5678 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 117 4 Turn the left dial to select the second part of the setting 01 15 5 Turn the right dial to modify the value from 15 to 20. 01 20 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 118: Configuration Wizard
Booster heater capacity [9.4.1] (if applicable) Backup heater Voltage [9.3.2] "Backup heater" [ 178] Configuration [9.3.3] Capacity step 1 [9.3.4] Additional capacity step 2 [9.3.5] (if applicable) Main zone EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 119: Possible Screens
Comfort setpoint [5.2] Eco setpoint [5.3] Reheat setpoint [5.4] Hysteresis [5.9] and [5.A] 9.3 Possible screens 9.3.1 Possible screens: Overview The most common screens are as follows: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 120: Home Screen
26 Feb 2019 22:19 Possible actions on this screen Go through the list of the main menu. Go to the main menu screen. Enable/disable breadcrumbs. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 121 Outdoor unit Indoor unit / domestic hot water tank Floor-standing indoor unit with integrated tank Wall-mounted indoor unit Wall-mounted indoor unit with separated tank Water pressure EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 122 "To display the help text in case of a malfunction" [ 225] for more information. If the corresponding operation (for example: space heating) is not active, the circle is greyed out. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 123: Main Menu Screen
Displays data and information about the Information indoor unit. Installer settings Restriction: Only for the installer. Gives access to advanced settings. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 124: Menu Screen
[2] Main zone screen °C °C – – Room Main zone [3] Additional zone screen [5] Tank temperature screen °C °C – – Tank Additional zone EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 125: Detailed Screen With Values
Confirm changes and proceed. 9.3.7 Schedule screen: Example This example shows how to set a room temperature schedule in heating mode for the main zone. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 126 To clear the content of the week schedule 1 Select the name of the current schedule. User defined 1 2 Select Delete. Delete Rename Select 3 Select OK to confirm. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 127 In this example, Monday is the first day you programmed. Thus, the last programmed action is valid up to the first action of next Monday. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 128 5 Repeat this action for all other weekdays. — User defined 1 To program the schedule for Saturday and copy it to Sunday 1 Select Saturday. 2 Select Edit. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 129 The schedule name can contain up to 15 characters. 5 Confirm the new name. INFORMATION Not all schedules can be renamed. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 130: Weather-Dependent Curve
See "Using weather-dependent curves" [ 133]. 9.4.2 2-points curve Define the weather-dependent curve with these two setpoints: ▪ Setpoint (X1, Y2) ▪ Setpoint (X2, Y1) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 131: Slope-Offset Curve
Examples Weather-dependent curve when slope is selected: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 132 The icon corresponds to the heat emitter for that zone: ▪ : Underfloor heating ▪ : Fan coil unit ▪ : Radiator ▪ : Domestic hot water tank EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 133: Using Weather-Dependent Curves
Go to … Main zone – Heating [2.5] Main zone > Heating WD curve Main zone – Cooling [2.6] Main zone > Cooling WD curve EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 134 ↑ Cold Cold ↑ ↑ ↑ ↑ Cold ↓ ↑ ↓ ↑ — ↓ — ↓ Cold ↑ ↓ ↑ ↓ ↓ ↓ ↓ ↓ EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 135: Settings Menu
No: Room temperature is directly controlled by the user. ▪ Yes: Room temperature is controlled by a schedule and can be modified by the user. Heating schedule Applicable for all models. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 136 Antifrost function via the backup heater. If the backup heater is not allowed for room frost protection during a U4 error, the room Antifrost setting MUST be disabled. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 137 Room frost protection is guaranteed by the normal logic. ▪ The external room thermostat is "Thermo ON" In case of 2 leaving water temperature zones: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 138 NOTICE When adjusting the room temperature ranges, all desired room temperatures are also adjusted to guarantee they are between the limits. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 139: Main Zone
Only applicable if the external room sensor option is installed and configured. ▪ –5°C~5°C, step 0.5°C 9.5.3 Main zone Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 140 Define a heating temperature schedule for the main zone via [2.2] Heating schedule. "Schedule screen: Example" [ 125]. Cooling schedule Define a cooling temperature schedule for the main zone via [2.3] Cooling schedule. "Schedule screen: Example" [ 125]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 141 10°C. Heating WD curve Set weather-dependent heating for the main zone (if [2.4]=1 or 2): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 142 Note: This value should be lower than [1‑02] as for high outdoor temperatures less warm water is required. Cooling WD curve Set weather-dependent cooling for the main zone (if [2.4]=2): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 143 It is important to set Emitter type correctly and in accordance with your system layout. The target delta T for the main zone depends on it. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 144 Example underfloor heating: 40–5/2=37.5°C To compensate, you can: ▪ Increase the weather-dependent curve desired temperatures [2.5]. ▪ Enable leaving water temperature modulation and increase the maximum modulation [2.C]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 145 Heating maximum: ▪ [2‑0C]=2 (emitter type main zone = radiator) 37°C~70°C ▪ Else: 37°C~55°C [2.8.3] [9-03] Cooling minimum: ▪ 5°C~18°C [2.8.4] [9-02] Cooling maximum: ▪ 18°C~22°C EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 146 Leaving water temperature: Delta T In heating for the main zone, the target delta T (temperature difference) depends on the selected emitter type for the main zone. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 147 Additionally, also the desired leaving water temperature must be configured: if Modulation is enabled, the unit automatically calculates the desired leaving water temperature. These calculations are based on: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 148 1 leaving water temperature zone, connect the shut-off valve to the heating/cooling output. The shut off valve for the main leaving water temperature zone can close under these circumstances: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 149: Additional Zone
130] and "Slope-offset curve" [ 131]. Code Description [2.E] ▪ 2-points ▪ Slope-Offset 9.5.4 Additional zone Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 150 125]. Setpoint mode The setpoint mode of the additional zone can be independently set from the setpoint mode of the main zone. "Setpoint mode" [ 141]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 151 Also see "Main zone" [ 139]. Code Description [2.E] ▪ 2-points ▪ Slope-Offset Heating WD curve Set weather-dependent heating for the additional zone (if [3.4]=1 or 2): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 152 Note: This value should be lower than [0‑01] as for high outdoor temperatures less warm water is required. Cooling WD curve Set weather-dependent cooling for the additional zone (if [3.4]=2): EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 153 [9‑05]~[9‑06] [1‑0C] 0: Underfloor Maximum 55°C Variable (see [3.B.1]) heating 1: Fancoil unit Maximum 55°C Variable (see [3.B.1]) 2: Radiator Maximum 70°C Fixed 10°C EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 154 (X2M/35a) ▪ 2: 2 contacts. Connected to 2 digital inputs (X2M/34a and X2M/35a) Leaving water temperature: Delta T For more information, see "Main zone" [ 139]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 155: Space Heating/Cooling
To tell the system which space operation to use, you can: You can… Location Check which space operation mode is currently used. Home screen EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 156 2 Select a month. 3 For each month, select an option: ▪ Reversible: Not restricted ▪ Heating only: Restricted ▪ Cooling only: Restricted 4 Confirm the changes. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 157 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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 158 INFORMATION Mixing station. If your system layout contains 2 LWT zones, you need to install a mixing station in front of the main LWT zone. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 159 Make sure you set the emitter types for the main zone [2.7] and for the additional zone [3.7] correctly in accordance with the connected emitter. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 160 Sample is ONLY available in leaving water temperature control. a Space heating/cooling control b Off c On d LWT temperature e Actual f Desired g Pump operation EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 161 With this limitation range, delta T is possible and the comfort is guaranteed. The maximum values depend on the unit type: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 162 Use this setting to compensate for possible heat losses of the building due to the evaporation of melted ice or snow. (e.g. in cold region countries). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 163: Tank
Room frost protection [1.4] prevents the room from getting too cold. For more information about room frost protection, see "Room" [ 135]. 9.5.6 Tank Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 164 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 165 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 166 ▪ 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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 167 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 168 Code Description [5.A] [6-08] Reheat hysteresis ▪ 2°C~20°C Setpoint mode Code Description [5.B] Setpoint mode: ▪ Fixed ▪ Weather dependent EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 169 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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 170: User Settings
The maximum heat pump temperature depends on the ambient temperature. For more information, see the operation range. 9.5.7 User settings Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 171 To configure the holiday 1 Activate the holiday mode. — ▪ Go to [7.3.1]: User settings > Holiday > Activation. 7.3.1 Activation From Till ▪ Select On. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 172 Go to [7.4.3] Level and select the applicable quiet mode level. Example: Most quiet. Result: The unit always runs in the selected quiet mode level. The user cannot change this. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 173 INFORMATION Price value ranging from 0.00~990 valuta/kWh (with 2 significant values). INFORMATION If no schedule is set, the Electricity price for High is taken into account. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 174 Renewable heat incentive per kWh Calculation of the gas price Gas price=Actual gas price+(Incentive/kWh×0.9) Gas price=4.08+(5×0.9) Gas price=8.58 Calculation of the electricity price Electricity price=Actual electricity price+Incentive/kWh EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 175: Information
In menu… You can read out… [8.1] Energy data Produced energy, consumed electricity, and consumed gas [8.2] Malfunction history Malfunction history [8.3] Dealer information Contact/helpdesk number EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 176: Installer Settings
[9.C] Bivalent [9.D] Alarm output [9.E] Auto restart [9.F] Power saving function [9.G] Disable protections [9.H] Forced defrost [9.I] Overview field settings [9.N] Export MMI settings EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 177 When turned on, the pump runs and makes sure hot water is instantly available at the tap. To save energy, only turn on the pump during periods of the day when instant hot water is necessary. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 178 [6‑03]+[6‑04]. INFORMATION If [4‑0A]=3 and emergency mode is active, the power usage of the backup heater is maximal and equal to 2×[6‑03]+[6‑04]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 179 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 180 NOT confirm emergency operation. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 181 [5‑01] Equilibrium temperature and [5‑03] Space heating priority temperature are related to backup heater. So, you must set [5‑03] equal or a few degrees higher than [5‑01]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 182 [8-04]. Range: 0~10 hours Remark: The minimum time is 0.5 hours even when the selected value is 0. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 183 The preferential kWh rate power supply contact is connected to the same terminals (X5M/9+10) as the safety thermostat. Thus, the system can have EITHER preferential kWh rate power supply OR a safety thermostat. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 184 Do NOT use 1 or 3. Setting [D-00] to 1 or 3 when [D-01] is set to 1 or 2 will reset [D-00] back to 0, as the system does not have a booster heater. Only set [D-00] to the values in the table below: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 185 [5-09] Limit: Only applicable in case of full time power limitation mode. 0 kW~20 kW Limits when [9.9.1]=Inputs and [9.9.2]=kW: Code Description [9.9.9] [5-09] Limit 1: 0 kW~20 kW EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 186 (BBR16 activation and BBR16 power limit). After 2 weeks, the unit freezes these settings. Note: This is different from the permanent power limitation, which is always changeable. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 187 ▪ 0 None: NOT installed ▪ 1 1/10kWh: Installed ▪ 2 1/kWh: Installed ▪ 3 10/kWh: Installed ▪ 4 100/kWh: Installed ▪ 5 1000/kWh: Installed EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 188 The outdoor temperature is averaged over the selected time period. Code Description [9.B.3] [1-0A] Averaging time: ▪ 0: No averaging ▪ 1: 12 hours ▪ 2: 24 hours ▪ 3: 48 hours ▪ 4: 72 hours EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 189 [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 b Auxiliary boiler inactive EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 190 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 191 User settings > Electricity price > High [7.5.2] User settings > Electricity price > Medium [7.5.3] User settings > Electricity price > [7.6] User settings > Gas price EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 192 The final decision to allow power interruption of the outdoor unit during standstill depends on the ambient temperature, compressor conditions and minimum internal timers. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 193 [9.I]. See "To modify an overview setting" [ 117]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 194: Commissioning
User profile Operation [A.3] Air purge [A.4] UFH screed dryout About commissioning See: "10 Commissioning" [ 199] 9.5.11 Operation Overview The following items are listed in the submenu: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 195: Wlan
[D.4] Device info About the WLAN adapter The wireless LAN adapter connects the heat pump system to the internet. The user can then control the heat pump system via the Daikin Residential Controller app. This needs the following components: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Page 196 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 of the indoor unit: Mode: Turn AP mode ON (= WLAN adapter active as access point) or OFF.
Page 197: Menu Structure: Overview User Settings
(**) Only accessible by installer (***) Only applicable when WLAN adapter is installed INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 198: 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 199: Commissioning
10 Commissioning NOTICE General commissioning checklist. Next to the commissioning instructions in this chapter, a general commissioning checklist is also available on the Daikin Business Portal (authentication required). The general commissioning checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during the commissioning and hand-over to the user.
Page 200: 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 201: Checklist During Commissioning
— reach the minimum required flow rate + 2 l/min. During pump test run, the unit can operate below the minimum required flow rate. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 202: Air Purge Function
3 In the menu, set Type = Manual. 4 Select Start air purge. 5 Select OK to confirm. Result: The air purge starts. It stops automatically when ready. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 203: Operation Test Run
"To change — the user permission level" [ 116]. 2 Go to [A.1]: Commissioning > Operation test run. 3 Select a test from the list. Example: Heating. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 204: Actuator Test Run
1 In the menu, go to Stop test run. 2 Select OK to confirm. Possible actuator test runs ▪ Backup heater 1 test ▪ Backup heater 2 test ▪ Pump test EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 205: Underfloor Heating Screed Dryout
1 the duration in hours, up to 72 hours, 2 the desired leaving water temperature, up to 55°C. Example: 24h (1) 36h (2) 35°C (2) 25°C (1) T Desired leaving water temperature (15~55°C) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 206 [D‑01]=0 ▪ [4‑08]=0 ▪ [4‑01]≠1 Steps Conditions: An underfloor heating screed dryout schedule has been programmed. "To program an underfloor heating screed dryout schedule" [ 205]. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 207 When the program is stopped due to an error, an operation switch-off, or a power failure, you can read out the underfloor heating screed dryout status: 1 Go to [A.4.3]: Commissioning > UFH screed dryout > Status EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 208 If the UFH screed dryout program was stopped due to a power failure and the power resumes, the program will automatically restart the last implemented step. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 209: Hand-Over To The User
Show the user what to do for the maintenance of the unit. ▪ Explain the user about energy saving tips as described in the operation manual. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 210: Maintenance And Service
Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 211: Yearly Maintenance
Switch box ▪ Descaling ▪ Chemical disinfection 12.3.4 Yearly maintenance indoor unit: instructions Water pressure Keep water pressure above 1 bar. If it is lower, add water. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 212 "To install the water filter" [ 216] Water pressure relief valve Open the valve and check if it operates correctly. The water may be very hot! Checkpoints are: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 213 For this reason, descaling of the heat exchanger may be required at certain intervals. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 214: To Drain The Domestic Hot Water Tank
▪ "To remove the water filter" [ 215] ▪ "To clean the water filter in case of trouble" [ 215] ▪ "To install the water filter" [ 216] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 215: To Remove The Water Filter
Opening the magnetic filter/dirt separator is ONLY required in case of severe issues. Preferably this action is never to be done during the complete lifetime of the magnetic filter/dirt separator. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 216: To Install The Water Filter
Check the condition of the O-rings and replace if needed. Apply water to the O-rings before installation. 1 Install the water filter in the correct location. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 217 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 218: Troubleshooting
If you are unable to find the cause of the problem, call your dealer. DANGER: RISK OF ELECTROCUTION EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 219: Solving Problems Based On Symptoms
Make sure that the water volume in the too low installation is above the minimum required value (see "To check the water volume and flow rate" [ 75]). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 220: Symptom: Hot Water Does Not Reach The Desired Temperature
We recommend to purge air with the air purge function of the unit (to be performed by the installer). If you purge air from the heat emitters or collectors, mind the following: EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 221: Symptom: The Pump Is Blocked
Purge air manually (see "To perform a manual air purge" [ 202]) or use the automatic air purge function (see "To perform an automatic air purge" [ 203]). EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 222: Symptom: The Pressure Relief Valve Opens
▪ If the water keeps running out of the unit, close both the water inlet and outlet shut-off valves first and then contact your dealer. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 223: Symptom: The Space Is Not Sufficiently Heated At Low Outdoor Temperatures
Increase the "space heating priority temperature" to activate backup heater operation at a higher outdoor temperature. [9.6.3]: Installer settings > Balancing > Priority temperature [5‑03] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 224: Symptom: The Pressure At The Tapping Point Is Temporarily Unusually High
INFORMATION See the service manual for: ▪ The complete list of error codes ▪ A more detailed troubleshooting guideline for each error EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 225: To Display The Help Text In Case Of A Malfunction
Overheating mixed water circuit (thermostat) 8H-03 Overheating water circuit (thermostat) A1-00 Zero cross detection problem A5-00 OU: High pressure peak cut / freeze protection problem EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 226 Malfunction of compressor overload protection H6-00 OU: Malfunction of position detection sensor H8-00 OU: Malfunction of compressor input (CT) system H9-00 OU: Malfunction of outdoor air thermistor EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 227 Malfunction by reverse phase/open-phase U2-00 OU: Defect of power supply voltage U3-00 Underfloor heating screed dryout function not completed correctly U4-00 Indoor/outdoor unit communication problem EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 228 If an U8‑04 error occurs, the error can be reset after a successful update of the software. If the software is not successfully updated then you must make sure that your USB device has the FAT32 format. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 229 Troubleshooting INFORMATION The user interface will display how to reset an error code. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 230: Disposal
See: ▪ "To install the discharge grille" [ 67] ▪ "To remove the discharge grille, and put the grille in safety position" [ 68] EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 231 3 Turn the EEV magnet clockwise 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. EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 232: Technical Data
Technical data 15 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 15.1...
Page 233: Service Space: Outdoor Unit
≥300 ≥100 ≥500 (mm) 3D124412 English Translation General General No top-side obstacle No top-side obstacle Top-side obstacle Top-side obstacle Wall height unrestricted Wall height unrestricted EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 234: Piping Diagram: Outdoor Unit
Y3E Electronic expansion valve (injection) Y1S Solenoid valve (4-way valve) Y2S Solenoid valve (low pressure bypass) Y3S Solenoid valve (hot gas bypass) Y4S Solenoid valve (liquid injection) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 235: Piping Diagram: Indoor Unit
R1T Thermistor (water IN) R2T Thermistor (backup heater – water OUT) R5T, R8T Thermistor (tank) S1L Flow switch Screw connection Flare connection Quick coupling Brazed connection EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 236: Wiring Diagram: Outdoor Unit
Right side view See note *** See note *** Notes: Symbols: Live Neutral Protective earth Noiseless earth Field wiring Option Terminal strip Terminal Connector Connection EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 237 Light-emitting diode (service monitor is orange) HAP (A1P) Light-emitting diode (service monitor is green) K1R (A1P) Magnetic relay (Y1S) K1R (A4P) Magnetic relay (E1HHEX~E3HHEX) K2R (A1P) Magnetic relay (Y2S) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 238 Insulated Gate Bipolar Transistor (IGBT) X1M, X2M Terminal strip Electronic expansion valve (main) Electronic expansion valve (injection) Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 239 Earth leakage circuit breaker (30 mA) (field supply) R1, R2 (A2P) Resistor Thermistor (outdoor air) Thermistor (compressor discharge) Thermistor (compressor suction) Thermistor (air heat exchanger, distributor) Thermistor (air heat exchanger, middle) EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 240 Solenoid valve (4‑way valve) Solenoid valve (low pressure bypass) Solenoid valve (hot gas bypass) Solenoid valve (liquid injection) Z1C~Z10C Noise filter (ferrite core) Z1F~Z4F (A1P, A3P) Noise filter EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 241: Wiring Diagram: Indoor Unit
Safety thermostat Safety thermostat Main LWT Main leaving water temperature On/OFF thermostat (wired) On/OFF thermostat (wired) On/OFF thermostat (wireless) On/OFF thermostat (wireless) Ext. thermistor External thermistor EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 242 # 2-way valve for cooling mode PC (A15P) * Power circuit PHC1 (A4P) * Optocoupler input circuit Thermal protector backup heater # Safety thermostat Q*DI # Earth leakage circuit breaker EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 243 Only for remote user interface HCI Only for the dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) Only for WLAN adapter Only for WLAN adapter SWB1 Switch box EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 244 (8) External On/OFF thermostats and heat pump convector heat pump convector Additional LWT zone Additional leaving water temperature zone Main LWT zone Main leaving water temperature zone EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 245 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 EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 246 A20P: J2 2 core 2×0.75 communication A11P: X9: 1-2-3 X5M: 11-12 A14P: P1-P2 user interface communication 2 core 2×0.75 A13P: P1-P2 LAN adapter communication 4D124705A EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G) Installer reference guide Daikin Altherma 3 H HT F 4P587502-1B – 2020.12...
Page 247: 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 248: Field Settings Table
1/11 Field settings table 95D1 [8.7.5] = ..Applicable indoor units ETBH16DA6V ETBH16DA9W ETBX16DA6V ETBX16DA9W ETBH16DF6V ETBH16DF9W ETBX16DF6V ETBX16DF9W ETVH16S18DA6V* ETVH16S23DA6V* ETVH16S18DA9W* ETVH16S23DA9W* ETVX16S18DA6V* ETVX16S23DA6V* ETVX16S18DA9W* ETVX16S23DA9W* Notes (*1) *6V (*2) *9W (*3) ETB* (*4) ETV* (*5) *X* (*6) *H* 4P586458-1A - 2020.10...
Page 249 2/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official 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 250 3/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value Setpoint mode 0: Fixed 1: WD heating, fixed cooling 2: Weather dependent └─ Heating WD curve [0-00] Leaving water value for high ambient temp.
Page 251 4/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value [6-0C] Reheat setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C [6-0D] Heat up mode 0: Reheat only 1: Reheat + sched. 2: Scheduled only └─...
Page 252 5/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official 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...
Page 253 6/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value 9.1.B.3 [6-0B] Eco setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C 9.1.B.4 [6-0C] Reheat setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C 9.1.B.5 [6-08]...
Page 254 7/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value 9.9.7 [5-08] Limit 4 0~50 A, step: 1 A 50 A 9.9.8 [5-09] Limit 0~20 kW, step: 0,5 kW 20 kW 9.9.9 [5-09]...
Page 255 8/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value [1-00] Low ambient temp. for LWT main zone heating WD curve. -40~5°C, step: 1°C -15°C [1-01] High ambient temp. for LWT main zone heating WD curve. 10~25°C, step: 1°C 15°C [1-02]...
Page 256 9/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value [3-09] What is the minimum desired room temperature in cooling? 15~25°C, step: 0,5°C 15°C [4-00] What is the BUH operation mode? 0: Disabled 1: Enabled 2: Only DHW...
Page 257 10/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official 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 258 11/11 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Official Value Default value [C-0C] [C-0D] [C-0E] [D-00] Which heaters are permitted if prefer. kWh rate PS is cut? 0: None 1: BSH only 2: BUH only 3: All heaters...
Page 260 4P587502-1B 2020.12 Verantwortung für Energie und Umwelt...

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