{
  "url": "https://openlegislation.uk/eu-regulation-2014-1253/annex-III/division-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2014-1253/annex-III/division-2.json",
  "legislation": "eur/2014/1253",
  "legislation_title": "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)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2014-1253",
  "path": "annex/III/division/2",
  "kind": "division",
  "number": "2",
  "heading": "From 1 January 2018:",
  "text": "All ventilation units, except dual use units, shall be equipped with a multi-speed drive or a variable speed drive.\nAll BVUs shall have a HRS.\nThe HRS shall have a thermal by-pass facility.\nThe minimum thermal efficiency ηt_nrvu of all HRS except run-around HRS in BVUs shall be 73 % and the efficiency bonus E = (ηt_nrvu – 0,73) * 3 000 if the thermal efficiency ηt_nrvu is at least 73 %, otherwise E = 0.\nThe minimum thermal efficiency ηt_nrvu of run-around HRS in BVUs shall be 68 % and the efficiency bonus E = (ηt_nrvu – 0,68) * 3 000 if the thermal efficiency ηt_nrvu is at least 68 %, otherwise E = 0.\nThe minimum fan efficiency for UVUs (ηνu ) is\n6,2 % * ln(P) + 42,0 % if P ≤ 30 kW and\n63,1 % if P > 30 kW.\nThe maximum internal specific fan power of ventilation components (SFPint_limit ) in W/(m3/s) is\nfor a BVU with run-around HRS\n1 600 + E – 300 * qnom /2 – F if qnom < 2 m3/s and\n1 300 + E – F if qnom ≥ 2 m3/s;\nfor a BVU with other HRS\n1 100 + E – 300 * qnom /2 – F if qnom < 2 m3/s and\n800 + E – F if qnom ≥ 2 m3/s;\n230 for an UVU intended to be used with a filter.\nIf a filter unit is part of the configuration the product shall be equipped with a visual signalling or an alarm in the control system which shall be activated if the filter pressure drop exceeds the maximum allowable final pressure drop.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2014/1253/annex/III/division/2",
    "retrieved_at": "2026-11-01T14:47:08.317179+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}