# Commission Regulation (EU) No 1253/2014 of 7 July 2014 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for ventilation units (Text with EEA relevance), Division 1: From 1 January 2016:

Extent: E+W+S+N.I.

SEC, calculated for average climate, shall be no more than 0 kWh/(m2.a).
Non-ducted units including ventilation units intended to be equipped with one duct connection on either supply or extract air side shall have a maximum LWA of 45 dB.
All VUs, except dual use units, shall be equipped with a multi-speed drive or variable speed drive.
All BVUs shall have a thermal by-pass facility.

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Source: https://www.legislation.gov.uk/eur/2014/1253/annex/II/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2014-1253/annex-II/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.