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EP 4 490 445 A1

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(43) Date of publication: 15.01.2025 Bulletin 2025/03 (21) Application number: 23709377.8 (22) Date of filing: 02.03.2023

(51) International Patent Classification (IPC):  F24F 1/38(2011.01) F24F 1/56(2011.01) F24F 13/02(2006.01) F28D 1/02(2006.01) F24F 1/46(2011.01) F24F 13/20(2006.01) F24F 1/48(2011.01) (52) Cooperative Patent Classification (CPC): F24H 4/06; F24F 1/06; F24F 1/38; F24F 1/56; F24H 9/02; F24F 1/48; F24F 13/029; F28D 1/024; F28D 1/0477 (86) International application number: PCT/EP2023/055341 (87) International publication number: WO 2023/169927 (14.09.2023 Gazette 2023/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 11.03.2022 EP 22161653 04.07.2022 EP 22182713 14.10.2022 EP 22201679 (71) Applicant: BDR Thermea Group B.V. 7332 BD Apeldoorn (NL)	(72) Inventors: ANTOINE, Florian 7332 BD Apeldoorn (NL) SIEGEL, Olivier 7332 BD Apeldoorn (NL) CROUZET, Francois 7332 BD Apeldoorn (NL) FERTIN, Paul 7332 BD Apeldoorn (NL) (74) Representative: Dennemeyer & Associates S.A.  Postfach 70 04 25 81304 München 81304 München (DE)