Defrost

[fernandodarosa]

Does anyone know if those values are available in any of the calculations or visibilities?

There are some variables which contain "Abtau" in the name. I tried all of them but none seems to have those values. Actually I tried without sucess all the calculations and visibilities which are not known,

[Bouni]

You can try to install python-luxtronik locally (pip install python-luxtronik) Then run this script (Adjust IP and port to your heatpump): https://gist.github.com/Bouni/cf0dc2c7c53c32deeb264803ec350e5c

This will dump all parameters, calculations and visibilities.

Look through all of them for values like 29.1, 291 or 2910 (check for the current value in your heatpumps webinterface obviously 😉 )

That might help you figuring out the right parameter.

Ideally you'll let us know if you've been able to find the right parameter so that we can document it.

[fernandodarosa]

Thanks for your feedback!

I ran the script and there are two parameters that I believe are the ones I am searching.

This is what I have on the web interface

The Letzte Abt. in unix time is 1684554060, which is very similar to the on "Unknown_Parameter1119" (Unknown_Parameter1119 = 1684554096 -> 20.05.2023 05:41:36 on GMT+2)

Related to the Abtaubedarf I can't say that the "Unknown_Parameter_1124" is the one. Looking to all the unkown values, this was the closest. The weather is now warm for defrosting, but I will keep monitoring it.

[Bouni]

@fernandodarosa Glad you are most likely on the right track!

If you can confirm that these parameters keep the right values compared to the webinterface we can rename them to something meaningful.

Keep us updated!

[fernandodarosa]

After some days my heatpump made another cycle of defrosting and I could compare the values.

This is the current status of the defrosting

and this is the value on parameter 1119 which converted to time format is 26.05.2023 05:57:11 So I think we could confirm that the "Unknown_Parameter_1119" is the Letzte Abt. variable.

However, the variable for the Abtaubedarf is still unknown. I saved the output of the script to txt files so that I could compare them, but I did not have any sucess. Now I don't know if I am just missing it very badly or the heat pump simply does not send it.

Below are the output files that I saved.... maybe someone can double check them... Abtaubedarf 0.7% - Letzte Abt. 20.05.23 0541.txt Abtaubedarf 6.4% - Letzte Abt. 20.05.23 0541.txt Abtaubedarf 28.9% - Letzte Abt. 26.05.23 0557.txt

Cheers! Fernando