Division 1.1 Energy Efficiency Index (EEIW) of household washing machines and the washing cycle of household washer-dryersF1

For the calculation of the EEI_W, the weighted energy consumption of the eco 40-60 programme at the rated washing capacity, half of the rated washing capacity and a quarter of the rated washing capacity is compared to its standard cycle energy consumption.

1. (a)

   The EEI_W is calculated as follows, and is rounded to one decimal place:

   EEI_W = (E_W/SCE_W) × 100

   where:

   E_W is the weighted energy consumption of the household washing machine or of the washing cycle of the household washer-dryer;

   SCE_W is the standard cycle energy consumption of the household washing machine or the washing cycle of the household washer-dryer.

2. (b)

   The SCE_W is calculated in kWh per cycle as follows, and is rounded to three decimal places:

   SCE_W = -0,0025 × c² + 0,0846 × c + 0,392

   where c is the rated capacity of the household washing machine or the rated washing capacity of the household washer-dryer for the eco 40-60 programme.

3. (c)

   The E_W is calculated in kWh per cycle as follows, and is rounded to three decimal places:

   

   where:

   E_W,full is the energy consumption of the household washing machine or of the washing cycle of the household washer-dryer for the eco 40-60 programme at the rated washing capacity and rounded to three decimal places;

   E_W,½ is the energy consumption of the household washing machine or of the washing cycle of the household washer-dryer for the eco 40-60 programme at half of the rated washing capacity and rounded to three decimal places;

   E_W,1/4 is the energy consumption of the household washing machine or of the washing cycle of the household washer-dryer for the eco 40-60 programme at a quarter of the rated washing capacity and rounded to three decimal places;

   A is the weighting factor for the rated washing capacity and rounded to three decimal places;

   B is the weighting factor for half of the rated washing capacity and rounded to three decimal places;

   C is the weighting factor for a quarter of the rated washing capacity and rounded to three decimal places;

   for household washing machines with a rated capacity lower than or equal to 3 kg and for household washer-dryers with a rated washing capacity lower than or equal to 3 kg, A shall be equal to 1; B and C shall be equal to 0;

   for other household washing machines and household washer-dryers, the values of the weighting factors depend on the rated capacity according to the following equations:

   A = -0,0391 × c + 0,6918

   B = -0,0109 × c + 0,3582

   C = 1 - (A + B)

   where c is the rated capacity of the household washing machine or the rated washing capacity of the household washer dryer.