NORD - Gree climate - how to add

Hi Team,
I have NORD split climates, this brand is owned by Gree.The Gree app on Android manages them without problem, those are on same wifi than the HA instance. But the Gree integration does not find them. Where / how can I add manually unknown devices? (Sorry, I am a beginer, just learnig the system) Or where can I have docs to read about that, please?

I updated firmware with EWPE Smart app to version v3.76 and now it works for me as Gree device.