Hello and welcome to the community.
I’ve never used a Daikin controller but looking at the documentation found here it mentions “Daikin air conditioning units with a BRP072A42 installed. This may work with the older KRP series of wired adapters, but has not been tested with them.”
I’m not sure how your model compares to the one listed in the 1.x binding mentioned above but there is also an OpenDaikin binding (2.x version) you can also try. To install this, via PaperUI, you will need to also install the market place bindings found in Addons > Misc > Eclipse IoT Market. After installing that you will find the OpenDaikin listed in Addon bindings.
Another way to install the newest binding is to download the jar file JFrog and add it to usr/share/openhab2/addons then restart OH.
Hope this helps, and once again, welcome to OH.
EDIT: Found a topic that may be of interest.