Commission Delegated Regulation (EU) No 65/2014Show full title

2. DOMESTIC RANGE HOODS

2.1. Calculation of the Energy Efficiency Index (EEI_hood)

The Energy Efficiency Index (EEI_hood ) is calculated as:

and is rounded to the first decimal place.

Where:

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

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

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

Where:

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

• W_L 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 (AEC_hood ) of a domestic range hood is calculated as:

(i)

for the fully automatic domestic range hoods:

(ii)

for all other domestic range hoods:

Where:

• t_L is the average lighting time per day, in minutes (t_L = 120),

• t_H is the average running time per day for domestic range hoods, in minutes (t_H = 60),

• P_o is the electric power input in off-mode of the domestic range hood, in Watt and rounded to the second decimal place,

• P_s 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 (FDE_hood)

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

Where:

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

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

• W_BEP 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 (LE_hood)

The Lighting Efficiency (LE_hood) 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:

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

• W_L 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 (GFE_hood)

The Grease Filtering Efficiency (GFE_hood) 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:

— w_g

=

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

— w_r

=

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

— w_t

=

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 – L_WA) of a domestic range hood at the highest setting for normal use, rounded to the nearest integer.