Monitoring Immergas heat pump (Midea clone) using Waveshare?

Sorry but I have not that integration, you could try to open an issue on the repo page hoping the developer still maintains it.

From the commits it appears that the modbus register map came from an hungarian website

from the KJR-120X user manual

If it’s similar to the one you have you may find the map is applicable to your HP.

See also this

or see if this is applicable: