# Commission Delegated Regulation (EU) No 626/2011 of 4 May 2011 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of air conditioners, Division 2: The determination of the seasonal energy consumption and seasonal energy efficiency ratio (SEER) and seasonal coefficient of performance (SCOP) shall take into account:

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

(a)European seasonal conditions, as defined in Table 1 of this Annex;
(b)Reference design conditions, as defined in Table 3 of this Annex;
(c)Electric energy consumption for all relevant modes of operation, using time periods as defined in Table 4 of this Annex;
(d)Effects of the degradation of the energy efficiency caused by on/off cycling (if applicable) depending on the type of control of the cooling and/or heating capacity;
(e)Corrections on the seasonal coefficients of performance in conditions where the heating load can not be met by the heating capacity;
(f)The contribution of a back-up heater (if applicable) in the calculation of the seasonal efficiency of a unit in heating mode.

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Source: https://www.legislation.gov.uk/eur/2011/626/annex/VII/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-626/annex-VII/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.