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Good day,
Can you please help me with the connection of the heat pump Atlantis Loria 6000 Inventer, firmware v. 27. Reading the values is OK, but the command driver does not work, only the OT command works the other commands are ignored. The heat pump motherboard is Honeywell and the room thermostat is UA55... Please help me..
Thank you Mark

If the OT command works, then what you call "the command driver" seems to be working at least partly.

So you claim that PR=A doesn't report the current version, and GW=R doesn't reset the OTGW, but OT=33 correctly sets the outside temperature? That would be very strange. Please show a log when you try such commands.

Of course there are some commands that have no effect if your equipment doesn't support that functionality, but there should definitely be other commands than the OT command that do something.