ANNEX IVSupplementary provisions
ANNEX IV Verification procedure for market surveillance purposes When performing the market surveillance checks referred to in Article 3(2) of Directive 2009/125/EC, the authorities of the Member States shall apply the following verification procedure for the requirements set out in Annex II: 1. The Member State authorities shall test one single unit per model. 2. The heater model shall be considered to comply with the applicable requirements set out in Annex II to this Regulation if: (a) the declared values comply with the requirements set out in Annex II; (b) the seasonal space heating energy efficiency η s is not more than 8 % lower than the declared value at the rated heat output of the unit; (c) the water heating energy efficiency η wh is not more than 8 % lower than the declared value at the rated heat output of the unit; (d) the sound power level L WA is not more than 2 dB higher than the declared value of the unit; and (e) the emissions of nitrogen oxides, expressed in nitrogen dioxide, are not more than 20 % higher than the declared value of the unit. 3. If the result referred to in point 2(a) is not achieved, the model and all other equivalent models shall be considered not to comply with this Regulation. If the result referred to in point 2(b) to (e) is not achieved, the Member State authorities shall randomly select three additional units of the same model for testing. 4. The heater model shall be considered to comply with the applicable requirements set out in Annex II to this Regulation if: (a) the declared values of each of the three units comply with the requirements set out in Annex II; (b) the average of the three units for seasonal space heating energy efficiency η s is not more than 8 % lower than the declared value at the rated heat output of the unit; (c) the average of the three units for water heating energy efficiency η wh is not more than 8 % lower than the declared value at the rated heat output of the unit; (d) the average of the three units for the sound power level L WA is not more than 2 dB higher than the declared value of the unit; and (e) the average of the three units for emissions of nitrogen oxides, expressed in nitrogen dioxide, are not more than 20 % higher than the declared value of the unit. 5. If the results referred to in point 4 are not achieved, the model and all other equivalent models shall be considered not to comply with this Regulation. The Member State authorities shall provide the test results and other relevant information to the authorities of the other Member States and to the Commission within one month of the decision being taken on the non-compliance of the model. Member State authorities shall use the measurement and calculation methods set out in Annex III.