Heat pump/ventilation system too high energy consumption

The question I ask myself is whether the cooling has to turn off at some point again, or is it possible that it always runs at "full throttle"?

How big is the house, how many large glass surfaces are exposed to the sun, is he trying to cool the entire house, including the 50 tons of concrete in the ceilings and walls, does the system run 24/7 or only a few hours daily. Please say something about the conditions

If we take 10h/day where cooling is necessary, we come to 14kwh, and this period lies exactly in the sunshine

The power demand for cooling is directly related to the difference between the set target temperature and the outside temperature. At an outside temperature of 35 degrees and a set target value of 28 degrees, the system will need about 3 kW. If someone comes up with the idea that the target temperature should be 23 degrees, the consumption will rise significantly, because the system loses effectiveness as the temperature difference increases. The power for cooling depends on the operating conditions and usage. As always, comparisons are flawed and this one will be taken apart again: If you drive an electric car, you clearly notice that consumption at a constant 90 km/h is pleasantly low, at a constant 130 km/h already higher than most are willing to allow, and at a constant 200 it enters a dimension that causes incredulous amazement. Is it within the realm of possibility that cooling was done analogously to the example of driving constantly at 200?

The power demand for cooling is directly related to the difference between the set target temperature and the outside temperature. At an outside temperature of 35 degrees and a set target value of 28 degrees, the system will require around 3 kW. If someone gets the idea that the target temperature should be 23 degrees, the consumption rises significantly, because the system loses effectiveness as the temperature difference increases. The power for cooling depends on the operating conditions and usage. As always, comparisons are imperfect and this one will be dissected again: If you drive an electric car, you clearly notice that consumption at a constant 90 km/h is pleasantly low, at a constant 130 km/h already higher than most people are willing to allow, and at a constant 200 it reaches a level that causes disbelief. Is it within the realm of possibility that the cooling was run analogously to the example at a constant 200?

The power consumption for A35/W7 is 1.4 kW. That is already "constant 200". With that alone, you won’t reach 50 kWh in 24 hours. That is only 34 kWh at 24 hours full load.

The power consumption for A35/W7 is 1.4kW.

A35/W7 means outside 35 degrees, inside 7 less. That makes it set to 28 degrees.
I know many people, including in my household, who are not aware of this when they set the desired indoor temperature on a control panel. "At the office, they also set the temperature to 21 degrees" is the argument, and you run the system in a completely different range, if it even manages that.

35/W7 means outside 35 degrees, inside 7 less.

No, that means the device needs 1.4kW at an outside temperature of 35 degrees to cool the water down to 7 degrees for cooling (essentially the supply temperature as with a heat pump that heats). That has nothing to do with the inside temperature. This should allow an indoor temperature of around 24 degrees at 35 degrees outside temperature in the KfW 40 house (with sun protection). However, the consumption is not that high for 24 hours, as it is cooler at night (but who knows what settings have been made or if there is a defect). : What was the result of trying to turn off the system for an hour? That doesn’t require a lot of preparation time or any construction measures. I would have expected that to have been tried directly yesterday...

No, that means the device requires 1.4kW at an outside temperature of 35 degrees to cool the water down to 7 degrees for cooling (basically the supply temperature as with a heat pump that heats). This has nothing to do with the indoor temperature. This should make an indoor temperature of around 24 degrees possible at 35 degrees outside temperature in the KfW 40 house (with sun protection). However, the consumption is not that high for 24 hours because it is cooler at night (who knows what settings were made or if a defect exists). : What were the results of the attempt to turn off the system for an hour? That does not require any major preparation time or construction measures. I would have expected that to be tried directly yesterday...

I am currently on a business trip and can actually only test that on the weekend, so I ask for some patience, also with regard to your still open questions. Thank you.