ONECTA

Daikin Europe N.V.

About this app

ONECTA

Always in control, no matter where you are.

Supported Daikin units:
- All connected Altherma Heat Pump and Altherma Gas Boiler units.
- All connected air conditioning units

Register below to the Beta program to already experience new upcoming features.

The ONECTA application can, from any place at any time, control and monitor the status of your heating system and allows you to (*):

Monitor:
- The status of your system:
> Room temperature
> Requested room temperature
> Operation mode
> Fan speed
> Requested domestic hot water tank temperature
- Energy consumption graphs (day, week, month)

Control:
- Operation mode
- Change the requested room temperature
- Change the requested domestic hot water temperature
- Powerful mode (fast heating domestic hot water)

Schedule:
- Schedule the room temperature and operation modes
- Schedule the heating of the domestic hot water tank
- AC Demand control to reduce power consumption during certain moments of the day.
- Enable holiday mode

Voice control:
- Voice control through Amazon Alexa & Google Assistant
- To use these features, you need a smart speaker compatible with Amazon Alexa or Google Assistant.
- You can also use the Amazon voice or Google Assistant apps and use these features on your mobile.
- Supported commands: On/Off, Set/Get room temperature, Increase/Decrease temperature, Set operation mode, …
- Supported languages: English, German, French, Spanish & Italian.
- Extra languages (Google only): Danish, Dutch, Norwegian & Swedish

ONECTA previously known as Daikin Residential Controller

Visit app.daikineurope.com for more details.

(*) Availability of functions is depending on the system type, configuration and operation mode.
App functionality is only available if both the Daikin system and the App are connected to the Internet.

Ratings and reviews

While the app does basic stuff, it is limited and the interface is confusing. For example, there is no easy way to tell if the heat pump is actually running, it says heating all the time. You can't press a button for heating up the water tank now, but you can on the wall unit. You can only set one hot water schedule and three heating schedules, and can't give them names. Schedules only have a fixed time slots (6 for heating, 4 for hot water) which does not work well with Octopus Cosy.

User can add only 4 entries per day to schedule water tank. If eco/comfort temp is set, it overrides manualy turning the tank on/off. Google home supports only on/off for water tank, but it can't be combined with temp settings (as above). It should also support setting the tank temperature, this would fix the problem. App doesn't properly report water temp if schedule is set. There is no way to report bugs to neither onecta or Daikin itself. Energy reports are available for only 2 past days.

Only recently started using the app for my 3 units. Frequently crashes after trying to send an operation to a unit. After several tries, i can eventually get the desired setting done but it freezes again shortly after. Could be a great organisation app and controller if it didn't crash after every click on something. Update 7/5/25 - App is definitely working better and I have become a lot more used to it's interface. Only wish is the schedules could be named to make it easier to select.