Commission Regulation (EU) No 66/2014 of 14 January 2014 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for domestic ovens, hobs and range hoods (Text with EEA relevance)
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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.
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:
for domestic gas ovens:
Where:
=
Energy Efficiency Index for each cavity of a domestic oven, rounded to the first decimal place,
=
Standard Energy Consumption (electricity) required to heat a standardised load in a cavity of a domestic electric heated oven during a cycle, expressed in kWh, rounded to the second decimal place,
=
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,
=
Volume of the cavity of the domestic oven in litres (L), rounded to the nearest integer,
=
Energy Consumption required to heat a standardised load in a cavity of a domestic electric heated oven during a cycle, expressed in kWh, rounded to the second decimal place,
=
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.
The energy consumption of a domestic electric hob (ECelectric hob) is measured in Wh per kg of water heated in a normalised measurement (Wh/kg) considering all cookware pieces under standardised test conditions and rounded to the first decimal place.
The energy efficiency of gas burners in a domestic hob is calculated as follows:
Where:
=
energy efficiency of a gas burner in % and rounded to the first decimal place,
=
energy content of the consumed gas for the prescribed heating in MJ and rounded to the first decimal place,
=
theoretic minimum required energy for the corresponding prescribed heating in MJ and rounded to the first decimal place.
The energy efficiency of the gas hob (EEgas hob ) is calculated as the average of the energy efficiency of the different gas burners (EEgas burner ) of the hob.
Domestic mixed electric and gas hobs are treated in the measurements as two separate appliances. Electric cooking zones and cooking areas of the domestic mixed hobs shall follow the provisions of the previous Section 2.1 and cooking zones heated by gas burners shall follow the provisions of the previous Section 2.2.
The Energy Efficiency Index (EEIhood ) is calculated as:
and is rounded to the first decimal place.
Where:
=
Standard Annual Energy consumption of the domestic range hood in kWh/a, rounded to the first decimal place,
=
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:
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:
The 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.
Where:
Qmax is the maximum air flow of the domestic range hood, including intensive/boost mode if present, in m3/h and rounded to the first decimal place.
The mere presence of a manual switch or setting decreasing the air flow of the appliance to a value lower than or equal to 650 m3/h is not considered fulfilling this requirement.
the activation of the automatic functioning mode shall be possible only through a manual operation by the user, either on the hood or elsewhere,
the automatic functioning mode shall revert to manual control after no more than 10 minutes from the moment the automatic function switches off the motor.
The average illumination of the lighting system on the cooking surface (Emiddle ) is measured under standard conditions in lux and rounded to the nearest integer.
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, intensive or boost excluded, and rounded to the nearest integer.
See which can be simplified to
Where:
Vmax is the maximum volume of air to be extracted, set at 100 m3,
Qmax is the maximum air flow of the range hood, including intensive/boost mode if present,
t is the time expressed in minutes and rounded to the nearest integer,
dt is the total time until the air volume of 100 m3 has been reached,
tlimit is the time limit, expressed in minutes and rounded to the nearest integer, needed to extract 100 m3.
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