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Support the project - any amount: https://money.yandex.ru/to/4100187345... Instagram - / termostar_valentin Facebook - / termostar.md Website - www.termostar.md, E-mail - [email protected] Tel: +373 022 83-53-53 Adress: - Moldova, Chisinau, str. M.Manole 5 A video about how to choose the right operating mode of a frequency converter circulation pump! We will talk about the air bleeding mode, proportional mode and the mode with constant pressure maintenance in the heating system! If your radiators or heated floors heat up and then stop, then you have chosen the wrong operating mode for the heating pump!