Operation of a 230V heat pump in Germany?

Our Technibel heat pump (10 years old) has come to the end of its life after about 10 years, and a new pump was needed. Technibel apparently no longer sells products in Germany, and a unit from another manufacturer was estimated to cost around EUR 12-15k (including installation, pipe modifications, etc.) based on initial quotes.

Our heating technician advised us to try to find a stock model of our Technibel pump, as the replacement would be significantly cheaper (due to fewer modifications required).

Now I have actually managed to find a stock unit of our heat pump (same technical specifications). However, I did not pay attention to one thing: the pump was apparently intended for the French market and operates at 230V (not 400V like the predecessor intended for the German market).

Now the electrician tells me that I need a special permit from the grid operator to connect a 230V heat pump.

Is that correct? Do you have any experience with this?

My heat pump also has 230V, I didn't need any approval or permission for that. I also don't know why, every hairdryer consumes more electricity than the heat pump. But for the flow temperature, you also need one with a lot of power, you can't push unlimited electricity through one phase. There are limits.

The technical data of my replacement 230V pump:
Heating capacity (A7/W35): 11.5 kW
COP (A7/W35): 3.66 (with circulation pump)
Cooling capacity (A35/W7): 8.6 kW
EER (A35/W7): 2.57 (with circulation pump)
Heating connections: 2x DN25 (1" male thread)
Operating voltage: 230/1/50 V/Ph/Hz
Maximum operating current (heating): 21.3 A

In France, this pump was sold as standard. Therefore, I assume that the performance is within range.

Technically, this should not be a problem. Our pump is protected with 30A.

However, I would question whether it makes sense to install a 10-year-old pump.
What is the device supposed to cost? There have been many advances in pumps over the last 10 years. Changing the connections of 2 DN25 pipes can also be done by oneself within 2 hours.

Technically, this should not be a problem. Our pump is protected with 30A.

But is there a requirement for approval from the network operator for a 230V pump?

You have to look in the TABs. Not with us.