Version 0.1 of the integration. It is usable, but additional zone could not be tested so far. The latest information can be found: EKRHH Daikin Homepage In this document also the modbus registers can be found.
Do not use it as of now. This is just a first working version, that reads all the sensors
EKRHH supports 3 modes.
- Use case 1 – PV self-consumption for Daikin Altherma
- Use case 2 - PV self-consumption for Multi+(DHW)
- Use case 3 - Modbus RTU/IP for Daikin Altherma
- Use case 4 - Modbus TCP/IP or RTU for air-to-air heat pump
The integration only works with use case 3 and 4.
The following can be done in the ONECTA app: ▪ Add / remove the Daikin HomeHub to your home, ▪ Select a use case, ▪ Change the Modbus settings (for use case 3 and 4),
Modbus settings Modbus protocol: RTU or TCP/IP (default) In case of TCP/IP protocol, set the following: ▪ Encryption: none (default) or TLS
You have to set it to TCP/IP for the integration to work.
Select the right port at configuration: ▪ No encryption: 502 ▪ TLS encryption: 802
On the unit it is possible to set the smart grid setting via HomeHub (if desired)
Special thanks to Solaredge Modbus and Daikin Onecta. A lot of this code is based off those repositories.