ANNEX II

Measurements and calculations

For the purposes of compliance and verification of compliance with the requirements of this Regulation, measurements and calculations shall be made using a reliable, accurate and reproducible method that take into account the generally recognised state-of-the-art measurement and calculation methods, including harmonised standards the reference numbers of which have been published for the purpose in the Official Journal of the European Union. They shall meet the technical definitions, conditions, equations and parameters set out in this Annex.

1. DOMESTIC OVENS

The energy consumption of a cavity of a domestic oven shall be measured for one standardised cycle, in a conventional mode and in a fan-forced mode, if available, by heating a standardised load soaked with water. It shall be verified that the temperature inside the oven cavity reaches the temperature setting of the thermostat and/or the oven control display within the duration of the test cycle. The energy consumption per cycle corresponding to the best performing mode (conventional mode or fan-forced mode) shall be used in the following calculations.

For each cavity of a domestic oven, the Energy Efficiency Index (EEIcavity) shall be calculated according to the following formulas:

for domestic electric ovens:

(in kWh)

for domestic gas ovens:

(in MJ)

Where:

— EEIcavity = Energy Efficiency Index for each cavity of a domestic oven, in %, rounded to the first decimal place,

— SECelectric cavity = Standard Energy Consumption (electricity) required to heat a standardised load in a cavity of an electric heated domestic oven during a cycle, expressed in kWh, rounded to the second decimal place,

— SECgas cavity = Standard Energy Consumption required to heat a standardised load in a cavity of a domestic gas-fired oven during a cycle, expressed in MJ, rounded to the second decimal place,

— V= Volume of the cavity of the domestic oven in litres (L), rounded to the nearest integer,

— ECelectric cavity = Energy consumption required to heat a standardised load in a cavity of an electric heated domestic oven during a cycle, expressed in kWh, rounded to the second decimal place,

— ECgas cavity = Energy consumption required to heat a standardised load in a gas-fired cavity of a domestic oven during a cycle, expressed in MJ, rounded to the second decimal place.

2. DOMESTIC RANGE HOODS

2.1. Calculation of the Energy Efficiency Index (EEIhood)

The Energy Efficiency Index (EEIhood ) is calculated as:

and is rounded to the first decimal place.

Where:

— SAEChood is the Standard Annual Energy consumption of the domestic range hood in kWh/a, rounded to the first decimal place,

— AEChood is the Annual Energy Consumption of the domestic range hood in kWh/a, rounded to the first decimal place.

The Standard Annual Energy Consumption (SAEChood ) of a domestic range hood shall be calculated as:

Where:

— WBEP is the electric power input of the domestic range hood at the best efficiency point, in Watt and rounded to the first decimal place,

— WL is the nominal electric power input of the lighting system of the domestic range hood on the cooking surface, in Watt and rounded to the first decimal place.

The Annual Energy Consumption (AEChood ) of a domestic range hood is calculated as:

(i) for the fully automatic domestic range hoods:

(ii) for all other domestic range hoods: Where: — tL is the average lighting time per day, in minutes (tL = 120), — tH is the average running time per day for domestic range hoods, in minutes (tH = 60), — Po is the electric power input in off-mode of the domestic range hood, in Watt and rounded to the second decimal place, — Ps is the electric power input in standby mode of the domestic range hood, in Watt and rounded to the second decimal place, — f is the time increase factor, calculated and rounded to the first decimal place, as:

2.2. Calculation of the Fluid Dynamic Efficiency (FDEhood)

The Fluid Dynamic Efficiency (FDEhood ) at the best efficiency point is calculated by the following formula, and is rounded to the first decimal place:

Where:

— QBEP is the flow rate of the domestic range hood at best efficiency point, expressed in m3/h and rounded to the first decimal place,

— PBEP is the static pressure difference of the domestic range hood at best efficiency point, expressed in Pa and rounded to the nearest integer,

— WBEP is the electric power input of the domestic range hood at the best efficiency point, expressed in Watt and rounded to the first decimal place.

2.3. Calculation of the Lighting Efficiency (LEhood)

The Lighting Efficiency (LEhood) of a domestic range hood means the ratio between the average illumination and the nominal electric power input of the lighting system. It shall be calculated in lux per Watt and rounded at the nearest integer, as:

Where:

— Emiddle is the average illumination of the lighting system on the cooking surface measured under standard conditions, in lux and rounded to the nearest integer,

— WL is the nominal electric power input of the lighting system of the domestic range hood on the cooking surface, in Watt and rounded to the first decimal place.

2.4. Calculation of the Grease Filtering Efficiency (GFEhood)

The Grease Filtering Efficiency (GFEhood) of a domestic range hood means the relative amount of grease retained within the range hood grease filters. It shall be calculated and rounded to the first decimal place as:

Where:

— wg = the mass of oil in the grease filter, including all detachable coverings, in g and rounded to the first decimal place,

— wr = the mass of oil retained in the airways of the range hood, in g and rounded to the first decimal place,

— wt = the mass of oil retained in the absolute filter, in g and rounded to the first decimal place.

2.5. Noise

The Noise Value (in dB) is measured as the airborne acoustical A-weighted sound power emissions (weighted average value – LWA) of a domestic range hood at the highest setting for normal use, rounded to the nearest integer.