SCHEDULE 5ENERGY EFFICIENCY CLASS

Regulations 7(2), 8(2)(d) and 12(b)

PART 1Definitions of Classes A+ and A++

1

1

An appliance shall be classified as A+ or A++ where the energy efficiency index alpha (I) is within the ranges specified in Table 1.

Table 1

Energy efficiency index α(Iα)

“Energy efficiency class”

30 > Iα

A++

42 > Iα ≥ 30

A+

Iα ≥ 42

A to G (see below)

2

The energy efficiency index alpha shall be calculated using the formula:

Iα=ACSCα×100math

where—

  • “AC” means the annual energy consumption of the appliance (in accordance with the harmonised standards); and

  • “SCα” means the standard annual energy consumption α of the appliance.

  • “SCα” is calculated as:

    MαX∑Compartments(Vc×(25−Tc)20×FF×CC×BI)+Nα+CHmath

    where—

    • “Vc” means the net volume (in litres) of the compartment (in accordance with the harmonised standards);

    • “Tc” is the design temperature (in °C) of the compartment;

    • the values of M and N are given in Table 2; and

    • the values of FF, CC, BI and CH are given in Table 3.

Table 2

Type of appliance

Temperature of coldest compartment

Mα

Nα

1. Larder Fridge

>-6°C

0.233

245

2. Refrigerator/chillers

>-6°C

0.233

245

3. Refrigerator no star

>-6°C

0.233

245

4. Refrigerator*

≤-6°C *

0.643

191

5. Refrigerator**

≤-12°C **

0.450

245

6. Refrigerator***/

≤-18°C ***/*(***)

0.777

303

7. Fridge/freezer *(***)

≤-18°C ***/*(***)

0.777

303

8. Upright freezer

≤-18°C *(***)

0.539

315

9. Chest freezer

≤-18°C *(***)

0.472

286

10. Multi-door or other appliance

(1)

(1)

(1)

For these appliances, the temperature and star rating of the compartment with the lowest temperature will determine the values of M and N. Appliances with –18°C *(***) compartments shall be considered as fridge-freezers *(***).

Table 3

Correction factor

Value

Conditions

FF (frost free)

1.2

1

For “frost free” (ventilated) frozen food compartments;

Otherwise

CC (climate class)

1.2

1.1

1

For “tropical” appliances;

For “subtropical” appliances;

Otherwise

BI (built-in)

1.2

1

For built-in appliances (1) of under 58cm in width;

Otherwise

CH (chill compartment)

50 Kwh/y

0

For appliances with a chill compartment of at least 15 litres;

Otherwise

(1)

An appliance is “built-in” only if it is designed exclusively for installation within a kitchen cavity with a need of furniture finishings, and tested as such.

3

If an appliance is not A+ or A++, it shall be classified in accordance with Part 2.

PART 2Definition of Classes A to G

2

The energy efficiency class of an appliance shall be determined in accordance with Table 4.

Table 4

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

where—

  • “energy efficiency index” (expressed as a percentage) = annual energy consumption of appliance in accordance with the harmonised standards / 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; andthe values of M, N and Ω are taken from Table 5.

    Table 5

    Category of Appliance

    Ω

    M

    N

    1. Larder fridge

    —

    0.233

    245

    2. Refrigerator/chiller

    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)

    (1)

    For refrigerator/chiller the adjusted volume = net volume of fresh food compartment + Ω × net volume of chiller (10°C) compartment (expressed in litres).

    (2)

    For ‘no frost’ appliances as defined in the harmonised standards, 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=∑all compartments(25−Tc)20×Vc×Fcmath

    where—

    • “Tc” is design temperature (in °C) of each compartment;

    • “Vc” is the net volume (in litres) of each compartment; and

    • “Fc” 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 6.

    Table 6

    Temperature of coldest compartment

    Equivalent category

    M

    N

    >-6c

    1. 1

      Larder fridge

    2. 2

      Refrigerator/chiller

    3. 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