Cooling with brine heat pump - without thermal storage?

Hello everyone,

I need your expert opinion. We have an iDM brine heat pump Terra SWM 3-13 HGL-P. Initially, it was planned that, in addition to the Hygenik storage tank for domestic hot water preparation, we would install an additional thermal storage tank for the cooling function. The heat source available to us is the 160m deep geothermal probe. However, now we do not have an additional thermal storage tank but an extra heat exchanger for passive cooling. I am now somewhat confused and concerned that we might not be able to use the cooling as planned or desired. I know several builders (all with geothermal heat pumps using probes) in the new development area who all use the additional thermal storage tank. Do they then automatically have active cooling? Is something different about our system now? Have I misunderstood something?

Regards

I am rather skeptical about cooling through the underfloor heating system. It does not dehumidify, and controlled residential ventilation does not help in midsummer either. Better to invest in a simple split air conditioner in selected rooms.

is generally right. Buy an air conditioner. But to your question: What is the storage supposed to be for? The earth is already cold. Nothing needs to be "actively" done anymore. If you don't actively program the heat pump to take it away, it should just run "on its own." It doesn't even need the compressor running. It can't get any cheaper.

No idea what this "Thermospeicher" is supposed to be used for. Possibly just another term for buffer tank? You don’t need it in winter, and in summer – for "cooling" – even less so.

If the heat pump can cool, then everything’s fine. What does the heating specialist say, and what does the technical data sheet say?