Paragraph 1

(1)

The energy efficiency class of an appliance shall be determined in accordance with Table 1 where—

“energy efficiency index” (expressed as a percentage) = annual energy consumption of appliance in accordance with note V to Figure 1 in Schedule 1 (the label)/standard annual energy consumption of appliance;
“standard annual energy consumption of appliance” (expressed in kWh/year) = M × adjusted net volume + N;
“adjusted net volume” (expressed in litres) = net volume of fresh food compartment + Ω × net volume of frozen food compartment; and
the values of M, N and Ω are taken from Table 2.

TABLE 1

Energy efficiency index: I	Energy efficiency class
I < 55	A
55 ≤ I <75	B
75 ≤ I < 90	C
90 ≤ I < 100	D
100 ≤ I < 110	E
110 ≤ I < 125	F
125 ≤ I	G

TABLE 2

Category of appliance	Ω	M	N
Notes to Table 2 (1) For refrigerator/cellars the adjusted volume = net volume of fresh food compartment + Ω × net volume of cellar (10°C) compartment (expressed in litres). (2) For “no frost” appliances as defined in paragraph 1(12) of Schedule 2 (the information notice), this index is increased by a provisional factor of 1.2, giving a value of 2.58. (This allows for the possible bias of the measurement method, which does not allow for the lack of ice build-up on “no frost” appliances. In practice, ice build-up will somewhat increase the consumption of “conventional” appliances.) (3) Adjusted net volume (AV) shall be calculated by the formula: $AV = Σ \frac{(25 - T c)}{20} \times V c \times F c$ all compartments where T_c is design temperature (in °C) of each compartment, V_c is the net volume (in litres) of each compartment, and F_c is a factor which equals 1.2 for “no frost” compartments and 1 for other compartments. (4) For these appliances the values of M and N shall be determined by the temperature and star rating of the compartment with the lowest temperature, in accordance with Table 3:
1 Larder fridge	—	0.233	245
2 Refrigerator/cellar	0.75⁽¹⁾	0.233	245
3 Refrigerator no star	1.25	0.233	245
4 Refrigerator*	1.55	0.643	191
5 Refrigerator**	1.85	0.450	245
6 Refrigerator***	2.15	0.657	235
7 Fridge/freezer(**)	⁽³⁾:	0.777	303
8 Upright freezer	2.15⁽²⁾:	0.472	286
9 Chest freezer	2.15⁽²⁾:	0.446	181
10 Multi-door or other appliances	⁽³⁾:	⁽⁴⁾:	⁽⁴⁾:

TABLE 3

Temperature of coldest compartment	Equivalent category	M	N
> − 6 °C	1 Larder fridge; 2 refrigerator/cellar; 3 no-star refrigerator	0.233	245
≤ − 6°C *	4 Refrigerator (*)	0.643	191
≤ − 12°C **	5 Refrigerator (**)	0.450	245
≤ − 18°C ***	6 Refrigerator (***)	0.657	235
≤ − 18 °C (**) with freezing capacity	7 Fridge/freezer (**)	0.777	303