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TOPICAL ARTICLE Fig. 3: Test results, direct control of heat pump solution is, at least partly, in the hands of the heat pump manufacturers. From a strategic point of view, with all the external control, the heat pump alone will no longer have the full control of the indoor climate. If there is a need to control heat pumps that are already installed, it is recommended to use indirect control by manipulating the temperature sensor. The benefit is that the solution will work on almost all heat pump models, both old and new. The downside is partly that the con- trol will not have the same accuracy as with direct con- trol, and partly that there is a need for an installation on site for each heat pump, to make it possible to take over the outdoor temperature sensor. An alternative in order to avoid an expensive installation can be to work with indirect control by actively changing the heating curve or similar by a web-API. Many premium heat pumps sold today give the owner the possibility to control the heat pump from a distance, for example via an app, a feature that may be used for controlling the heat pump without any installations of equipment at each individual heat pump. Acknowledgments The FHP project has received funding from the European Union’s Horizon 2020 research and innovation program- me under grant agreement No 731231, and includes the following partners: Vito (project leader), Tecnalia, Noda, Honeywell, Ecovat, RISE and Karlshamn Energi. For more information about the project see: http://fhp-h2020.eu/ MARKUS LINDAHL M. Sc. RISE Research Institutes of Sweden Sweden markus.lindahl@ri.se https://doi.org/10.23697/2v1j-ej20 34 HPT MAGAZINE VOL.38 NO 1/2020PDF Image | Integration of Heat Pumps into the Future Energy
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