(19)

(11)

EP 4 259 982 A1

(12)

(43) Date of publication: 18.10.2023 Bulletin 2023/42 (21) Application number: 21824691.6 (22) Date of filing: 13.12.2021

(51) International Patent Classification (IPC):  F24F 11/49(2018.01) F24F 3/044(2006.01) F24F 11/54(2018.01) (52) Cooperative Patent Classification (CPC): F24F 2221/32; F24F 2221/36; F24F 3/044; F24F 11/49; F24F 11/54 (86) International application number: PCT/IB2021/061619 (87) International publication number: WO 2022/130160 (23.06.2022 Gazette 2022/25)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 14.12.2020 IT 202000030737 (71) Applicant: Daikin Applied Europe S.p.A. 00040 Ariccia (Roma) (IT)	(72) Inventor: CONSALVO, Pietro 04011 Aprilia (LT) (IT) (74) Representative: Conti, Marco  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)