Commission Regulation (EU) No 1253/2014Show full title

ANNEX I U.K. Definitions

Definitions applicable for the purposes of Annexes II to IX to this Regulation:

1.

Definitions:

(1)

‘specific energy consumption (SEC)’ (expressed in kWh/(m².a)) means a coefficient to express the energy consumed for ventilation per m² heated floor area of a dwelling or building, calculated for RVUs in accordance with Annex VIII;

(2)

‘sound power level (L_WA)’ means the casing-radiated A-weighted sound power level expressed in decibels (dB) with reference to the sound power of one picowatt (1pW), transmitted by the air at reference airflow;

(3)

‘multi-speed drive’ means a fan motor that can be operated at three or more fixed speeds plus zero (‘off’);

(4)

‘variable speed drive (VSD)’ means an electronic controller, integrated or functioning as one system or as a separate delivery with the motor and the fan, which continuously adapts the electrical power supplied to the motor in order to control the flow rate;

(5)

‘heat recovery system (HRS)’ means the part of a bidirectional ventilation unit equipped with a heat exchanger designed to transfer the heat contained in the (contaminated) exhaust air to the (fresh) supply air;

(6)

‘thermal efficiency of a residential HRS (η_t)’ means the ratio between supply air temperature gain and exhaust air temperature loss, both relative to the outdoor temperature, measured under dry conditions of the HRS, and standard air conditions, with balanced mass flow, at reference flow rate, an indoor-outdoor temperature difference of 13 K, no correction for thermal heat gain from fan motors;

(7)

‘internal leakage rate’ means the fraction of extract air present in the supply air of ventilation units with HRS as a result of leakage between extract and supply airflows inside the casing when the unit is operated at reference air volume flow, measured at the ducts; the test shall be performed for RVUs at 100 Pa, and for NRVUs at 250 Pa;

(8)

‘carry over’ means the percentage of the exhaust air which is returned to the supply air for a regenerative heat exchanger according to the reference flow;

(9)

‘external leakage rate’ means the leakage fraction of the reference air volume flow to or from the inside of the casing of a unit to or from the surrounding air when it is subjected to a pressure test; the test shall be performed at 250 Pa for RVUs and at 400 Pa for NRVUs, for both under and over pressure;

(10)

‘mixing’ means the immediate recirculation or short-circuiting of airflows between discharge and intake ports at both the indoor and outdoor terminals so that they do not contribute to the effective ventilation of a building space, when the unit is operated at reference air volume rate;

(11)

‘mixing rate’ means the fraction of extract airflow, as part of the total reference air volume, that recirculates between discharge and intake ports at both the indoor and outdoor terminals and thus does not contribute to the effective ventilation of a building space, when the unit is operated at reference air volume (measured at 1 m distance from the indoor supply duct), less the internal leakage rate;

(12)

‘effective power input’ (expressed in W) means the electric power input at reference flow rate and corresponding external total pressure difference and includes the electrical demand for fans, controls (including remote controls) and the heat pump (if integrated);

(13)

‘specific power input (SPI)’ (expressed in W/(m³/h)) means the ratio between the effective power input (in W) and the reference flow rate (in m³/h);

(14)

‘flow rate/pressure diagram’ means a set of curves for flow rate (horizontal axis) and pressure difference of a unidirectional RVU or the supply side of a bidirectional RVU, where each curve represents one fan speed with at least eight equidistant test-points and the number of curves is given by the number of discrete fan speed options (one, two or three) or, in the case of a variable fan speed drive, includes at least a minimum, maximum and appropriate intermediate curve close to the reference air volume and pressure difference for SPI testing;

(15)

‘reference flow rate’ (expressed in m³/s) is the abscissa value to a point on a curve in the flow rate/pressure diagram which is on or closest to a reference point at 70 % at least of the maximum flow rate and 50 Pa for ducted units and at a minimum pressure for non-ducted units. For bidirectional ventilation units, the reference air volume flow rate applies to the air supply outlet;

(16)

‘control factor (CTRL)’ means a correction factor for the SEC calculation depending on the type of control that is part of the ventilation unit, according to the description in Annex VIII Table 1;

(17)

‘control parameter’ means a measurable parameter or set of measurable parameters that are assumed to be representative of the ventilation demand, e.g. the level of relative humidity (RH), carbon dioxide (CO₂), volatile organic compounds (VOC) or other gases, presence, motion or occupancy detection from infrared body heat or from reflection of ultrasonic waves, electrical signals from human operation of lights or equipment;

(18)

‘manual control’ means any control type that does not use demand control;

(19)

‘demand control’ means a device or set of devices, integrated or as a separate delivery, that measures a control parameter and uses the result to regulate automatically the flow rate of the unit and/or the flow rates of the ducts;

(20)

‘clock control’ means a clocked (daytime-controlled) human interface to control the fan speed/flow rate of the ventilation unit, with at least seven weekday manual settings of the adjustable flow rate for at least two setback periods, i.e. periods in which a reduced or no flow rate applies;

(21)

‘demand controlled ventilation (DCV)’ means a ventilation unit that uses demand control;

(22)

‘ducted unit’ means a ventilation unit intended to ventilate one or more rooms or enclosed space in a building through the use of air ducts, intended to be equipped with duct connections;

(23)

‘non-ducted unit’ means a single room ventilation unit intended to ventilate a single room or enclosed space in a building, and not intended to be equipped with duct connections;

(24)

‘central demand control’ means a demand control of a ducted ventilation unit that continuously regulates the fan speed(s) and flow rate based on one sensor for the whole ventilated building or part of the building at central level;

(25)

‘local demand control’ means a demand control for a ventilation unit that continuously regulates the fan speed(s) and flow rates based on more than one sensor for a ducted ventilation unit or one sensor for a non-ducted unit;

(26)

‘static pressure (p_sf)’ means the total pressure minus the fan dynamic pressure;

(27)

‘total pressure (p_f)’ means the difference between the stagnation pressure at the fan outlet and that at the fan inlet;

(28)

‘stagnation pressure’ means the pressure measured at a point in a flowing gas if it were to be brought to rest by means of an isentropic process;

(29)

‘dynamic pressure’ means the pressure calculated from the mass flow rate and the average gas density at the outlet and the unit outlet area;

(30)

‘recuperative heat exchanger’ means a heat exchanger intended to transfer thermal energy from one air stream to another without moving parts, such as a plate or tubular heat exchanger with parallel flow, cross flow or counter flow, or a combination of these, or a plate or tubular heat exchanger with vapour diffusion;

(31)

‘regenerative heat exchanger’ means a rotary heat exchanger incorporating a rotating wheel for the purpose of transferring thermal energy from one air stream to the other, including material allowing latent heat transfer, a drive mechanism, a casing or frame, and seals to reduce bypassing and leakage of air from one stream or another; such heat exchangers have varying degrees of moisture recovery depending on the material used;

(32)

‘airflow sensitivity to pressure variations’ of a non-ducted RVU is the ratio between the maximum deviation from the maximum RVU flow rate at + 20 Pa and that at – 20 Pa external total pressure difference;

(33)

‘indoor/outdoor air tightness’ of a non-ducted RVU is the flow rate (expressed in m³/h) between indoors and outdoors when the fan(s) is(are) switched off;

(34)

‘dual use unit’ means a ventilation unit designed for ventilation purposes as well as fire or smoke extraction, complying with the basic requirements for construction works with regard to safety in case of fire as set out in Regulation (EU) No 305/2011;

(35)

‘thermal by-pass facility’ means any solution that circumvents the heat exchanger or controls automatically or manually its heat recovery performance, without necessarily requiring a physical airflow bypass (for example: summer box, rotor speed control, control of air flow);

2.

Definitions for NRVU, in addition to the definitions in Annex I Part 1:

(1)

‘nominal electric power input (P)’ (expressed in kW) means the effective electric power input of the fan drives, including any motor control equipment, at the nominal external pressure and the nominal airflow;

(2)

‘fan efficiency (η_fan)’ means the static efficiency including motor and drive efficiency of the individual fan(s) in the ventilation unit (reference configuration) determined at nominal air flow and nominal external pressure drop;

(3)

‘reference configuration of a BVU’ means a product configured with a casing, at least two fans with variable speed or multi-speed drives, a HRS, a clean fine filter on the inlet-side and a clean medium filter on the exhaust-side;

(4)

‘reference configuration of an UVU’ means a product configured with a casing and at least one fan with variable speed or multi-speed drive, and — in case the product is intended to be equipped with a filter on the inlet-side — this filter shall be a clean fine filter;

(5)

‘minimum fan efficiency (ην_u)’ is the specific minimum efficiency requirement for VUs within the scope of this Regulation;

(6)

‘nominal flow rate (q_nom)’ (expressed in m³/s) means the declared design flow rate of an NRVU at standard air conditions 20 °C and 101 325 Pa, whereby the unit is installed complete (for example, including filters) and according to the manufacturer instructions;

(7)

‘nominal external pressure (Δp_{s, ext})’ in (expressed in Pa) means the declared design external static pressure difference at nominal flow rate;

(8)

‘maximum rated fan speed (v_{fan_rated})’ (expressed in rounds per minute — rpm) is the fan speed at nominal flow rate and nominal external pressure;

(9)

‘internal pressure drop of ventilation components (Δp_s,int)’ (expressed in Pa) means the sum of the static pressure drops of a reference configuration of a BVU or an UVU at nominal flow rate;

(10)

‘internal pressure drop of additional non-ventilation components (Δp_s,add)’ (expressed in Pa) means the remainder of the sum of all internal static pressure drops at nominal flow rate and nominal external pressure after subtraction of the internal pressure drop of ventilation components (Δp_s,int );

(11)

‘thermal efficiency of a non-residential HRS (η_{t_nrvu})’ means the ratio between supply air temperature gain and the exhaust air temperature loss, both relative to the outdoor temperature, measured under dry reference conditions, with balanced mass flow, an indoor-outdoor air temperature difference of 20 K, excluding thermal heat gain from fan motors and from internal leakages;

(12)

‘internal specific fan power of ventilation components (SFP_int)’ (expressed in W/(m³/s)) is the ratio between the internal pressure drop of ventilation components and the fan efficiency, determined for the reference configuration;

(13)

‘maximum internal specific fan power of ventilation components (SFP_{int_limit})’ (expressed in W/(m³/s)) is the specific efficiency requirement for SFP_int for VUs within the scope of this Regulation;

(14)

‘run-around HRS’ is a heat recovery system where the heat recovery device on the exhaust side and the device supplying the recovered heat to the air stream on the supply side of a ventilated space are connected through a heat transfer system where the two sides of the HRS can be freely positioned in different parts of a building;

(15)

‘face velocity’ (expressed in m/s) is the larger of supply and extract air velocity. The velocities are the air velocities in the VU based on the inside unit area for supply respectively extract air flow of the VU. The velocity is based on the area of the filter section of the respective unit, or if no filter is installed, based on the area of the fan section;

(16)

‘efficiency bonus (E)’ is a correction factor taking account of the fact that more efficient heat recovery causes more pressure drops requiring more specific fan power;

(17)

‘filter correction (F)’ (expressed in Pa) is a correction value to be applied if a unit deviates from the reference configuration of a BVU;

(18)

‘fine filter’ means a filter that meets the relevant conditions described in Annex IX;

(19)

‘medium filter’ means a filter that meets the relevant conditions described in Annex IX;

(20)

‘filter efficiency’ means the average ratio between the dust fraction captured and the amount fed into the filter, under the conditions described for fine and medium filters in Annex IX.

ANNEX II U.K. Specific ecodesign requirements for RVUs, as referred to in Article 3(1) and 3(3)

1. From 1 January 2016: U.K.

• SEC, calculated for average climate, shall be no more than 0 kWh/(m².a).

• Non-ducted units including ventilation units intended to be equipped with one duct connection on either supply or extract air side shall have a maximum L_WA of 45 dB.

• All VUs, except dual use units, shall be equipped with a multi-speed drive or variable speed drive.

• All BVUs shall have a thermal by-pass facility.

2. From 1 January 2018: U.K.

• SEC, calculated for average climate, shall be no more than – 20 kWh/(m².a).

• Non-ducted units including ventilation units intended to be equipped with one duct connection on either supply or extract air side shall have a maximum L_WA of 40 dB.

• All VUs, except dual use units, shall be equipped with a multi-speed drive or variable speed drive.

• All BVUs shall have a thermal by-pass facility.

• Ventilation units with a filter shall be equipped with a visual filter change warning signal.

ANNEX III U.K. Specific ecodesign requirements for NRVUs, as referred to in Article 3(2) and 3(4)

1. From 1 January 2016: U.K.

• All ventilation units, except dual use units, shall be equipped with a multi-speed drive or a variable speed drive.

• All BVUs shall have a HRS.

• The HRS shall have a thermal by-pass facility.

• The minimum thermal efficiency η_{t_nrvu} of all HRS except run-around HRS in BVUs shall be 67 % and the efficiency bonus E = (η_{t_nrvu} – 0,67) * 3 000 if the thermal efficiency η_{t_nrvu} is at least 67 %, otherwise E = 0.

• The minimum thermal efficiency η_{t_nrvu} of run-around HRS in BVUs shall be 63 % and the efficiency bonus E = (η_{t_nrvu} – 0,63) * 3 000 if the thermal efficiency η_{t_nrvu} is at least 63 %, otherwise E = 0.

• The minimum fan efficiency for UVUs (ην_u ) is

  • 6,2 % * ln(P) + 35,0 % if P ≤ 30 kW and

  • 56,1 % if P > 30 kW.

• The maximum internal specific fan power of ventilation components (SFP_{int_limit} ) in W/(m³/s) is

  • for a BVU with run-around HRS

    • 1 700 + E – 300 * q_nom /2 – F if q_nom < 2 m³/s and

    • 1 400 + E – F if q_nom ≥ 2 m³/s;

  • for a BVU with other HRS

    • 1 200 + E – 300 * q_nom /2 – F if q_nom < 2 m³/s and

    • 900 + E – F if q_nom ≥ 2 m³/s;

  • 250 for an UVU intended to be used with a filter.

2. From 1 January 2018: U.K.

• All ventilation units, except dual use units, shall be equipped with a multi-speed drive or a variable speed drive.

  All BVUs shall have a HRS.

  The HRS shall have a thermal by-pass facility.

• The minimum thermal efficiency η_{t_nrvu} of all HRS except run-around HRS in BVUs shall be 73 % and the efficiency bonus E = (η_{t_nrvu} – 0,73) * 3 000 if the thermal efficiency η_{t_nrvu} is at least 73 %, otherwise E = 0.

• The minimum thermal efficiency η_{t_nrvu} of run-around HRS in BVUs shall be 68 % and the efficiency bonus E = (η_{t_nrvu} – 0,68) * 3 000 if the thermal efficiency η_{t_nrvu} is at least 68 %, otherwise E = 0.

• The minimum fan efficiency for UVUs (ην_u ) is

  • 6,2 % * ln(P) + 42,0 % if P ≤ 30 kW and

  • 63,1 % if P > 30 kW.

• The maximum internal specific fan power of ventilation components (SFP_{int_limit} ) in W/(m³/s) is

  • for a BVU with run-around HRS

    • 1 600 + E – 300 * q_nom /2 – F if q_nom < 2 m³/s and

    • 1 300 + E – F if q_nom ≥ 2 m³/s;

  • for a BVU with other HRS

    • 1 100 + E – 300 * q_nom /2 – F if q_nom < 2 m³/s and

    • 800 + E – F if q_nom ≥ 2 m³/s;

  • 230 for an UVU intended to be used with a filter.

• If a filter unit is part of the configuration the product shall be equipped with a visual signalling or an alarm in the control system which shall be activated if the filter pressure drop exceeds the maximum allowable final pressure drop.

ANNEX IV U.K. Information requirements for RVUs as referred to in Article 4(1)

1. From 1 January 2016, the following product information shall be provided: U.K.

(a)

supplier's name or trade mark;

(b)

supplier's model identifier i.e. the code, usually alphanumeric, used to distinguish a specific residential ventilation unit model from other models with the same trade mark or supplier's name;

(c)

specific energy consumption (SEC) in kWh/(m².a) for each applicable climate zone; and SEC class;

(d)

declared typology in accordance with Article 2 of this Regulation (RVU or NRVU, unidirectional or bidirectional);

(e)

type of drive installed or intended to be installed (multi-speed drive or variable speed drive);

(f)

type of heat recovery system (recuperative, regenerative, none);

(g)

thermal efficiency of heat recovery (in % or ‘not applicable’ if the product has no heat recovery system);

(h)

maximum flow rate in m³/h;

(i)

electric power input of the fan drive, including any motor control equipment, at maximum flow rate (W);

(j)

sound power level (L_WA), rounded to the nearest integer;

(k)

reference flow rate in m³/s;

(l)

reference pressure difference in Pa;

(m)

SPI in W/(m³/h);

(n)

control factor and control typology in accordance with the relevant definitions and classification in Annex VIII, Table 1;

(o)

declared maximum internal and external leakage rates (%) for bidirectional ventilation units or carry over (for regenerative heat exchangers only), and external leakage rates (%) for ducted unidirectional ventilation units;

(p)

mixing rate of non-ducted bidirectional ventilation units not intended to be equipped with one duct connection on either supply or extract air side;

(q)

position and description of visual filter warning for RVUs intended for use with filters, including text pointing out the importance of regular filter changes for performance and energy efficiency of the unit;

(r)

for unidirectional ventilation systems, instructions to install regulated supply/exhaust grilles in the façade for natural air supply/extraction;

(s)

internet address for disassembly instructions as referred to in point 3;

(t)

for non-ducted units only: the airflow sensitivity to pressure variations at + 20Pa and – 20 Pa;

(u)

for non-ducted units only: the indoor/outdoor air tightness in m³/h.

2. The information listed in point 1 shall be available: U.K.

• in the technical documentation of RVUs; and

• on free access websites of manufacturers, their authorised representatives, and importers.

3. The manufacturer's free access website shall make available detailed instructions, inter alia, identifying the required tools for the manual disassembly of permanent magnet motors, and of electronics parts (printed wiring boards/printed circuit boards and displays > 10 g or > 10 cm²), batteries and larger plastic parts (> 100 g) for the purpose of efficient materials recycling, except for models of which less than 5 units per year are produced. U.K.

ANNEX V U.K. Information requirements for NRVUs as referred to in Article 4(2)

1. From 1 January 2016, the following product information shall be provided: U.K.

(a)

manufacturer's name or trade mark;

(b)

manufacturer's model identifier, i.e. the code, usually alphanumeric, used to distinguish a specific non-residential ventilation unit model from other models with the same trade mark or supplier's name;

(c)

declared typology in accordance with Article 2 (RVU or NRVU, UVU or BVU);

(d)

type of drive installed or intended to be installed (multi-speed drive or variable speed drive);

(e)

type of HRS (run-around, other, none);

(f)

thermal efficiency of heat recovery (in % or ‘not applicable’ if the product has no heat recovery system);

(g)

nominal NRVU flow rate in m³/s;

(h)

effective electric power input (kW);

(i)

SFP_int in W/(m³/s);

(j)

face velocity in m/s at design flow rate;

(k)

nominal external pressure (Δp_{s, ext}) in Pa;

(l)

internal pressure drop of ventilation components (Δp_s,int) in Pa;

(m)

optional: internal pressure drop of non-ventilation components (Δp_s,add) in Pa;

(n)

static efficiency of fans used in accordance with Regulation (EU) No 327/2011;

(o)

declared maximum external leakage rate (%) of the casing of ventilation units; and declared maximum internal leakage rate (%) of bidirectional ventilation units or carry over (for regenerative heat exchangers only); both measured or calculated according to the pressurisation test method or tracer gas test method at declared system pressure;

(p)

energy performance, preferably energy classification, of the filters (declared information about the calculated annual energy consumption);

(q)

description of visual filter warning for NRVUs intended for use with filters, including text pointing out the importance of regular filter changes for performance and energy efficiency of the unit;

(r)

in the case of NRVUs specified for use indoors, the casing sound power level (L_WA), rounded to the nearest integer;

(s)

internet address for disassembly instructions as referred to in point 3.

2. The information listed in point 1(a) to (s) shall be available: U.K.

• in the technical documentation of NRVUs; and

• on free access websites of manufacturers, their authorised representatives, and importers.

3. The manufacturer's free access website shall make available detailed instructions, inter alia, identifying the required tools for the manual pre-/dis-assembly of permanent magnet motors, and of electronics parts (printed wiring boards/printed circuit boards and displays > 10 g or > 10 cm²), batteries and larger plastic parts (> 100 g) for the purpose of efficient materials recycling, except for models of which less than 5 units per year are produced. U.K.

[F1 ANNEX VI U.K. Product compliance verification by market surveillance authorities

Textual Amendments

F1 Substituted by Commission Regulation (EU) 2016/2282 of 30 November 2016 amending Regulations (EC) No 1275/2008, (EC) No 107/2009, (EC) No 278/2009, (EC) No 640/2009, (EC) No 641/2009, (EC) No 642/2009, (EC) No 643/2009, (EU) No 1015/2010, (EU) No 1016/2010, (EU) No 327/2011, (EU) No 206/2012, (EU) No 547/2012, (EU) No 932/2012, (EU) No 617/2013, (EU) No 666/2013, (EU) No 813/2013, (EU) No 814/2013, (EU) No 66/2014, (EU) No 548/2014, (EU) No 1253/2014, (EU) 2015/1095, (EU) 2015/1185, (EU) 2015/1188, (EU) 2015/1189 and (EU) 2016/2281 with regard to the use of tolerances in verification procedures (Text with EEA relevance).

The verification tolerances defined in this Annex relate only to the verification of the measured parameters by [F2 Great Britain] authorities and shall not be used by the manufacturer or importer as an allowed tolerance to establish the values in the technical documentation or in interpreting these values with a view to achieving compliance or to communicate better performance by any means.

Textual Amendments

F2 Words in Annex 6 substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(a) (as amended by S.I. 2020/1528, regs. 1(2), 6(1)(2)(b)(xxi)); 2020 c. 1, Sch. 5 para. 1(1)

[F3 When verifying the compliance of a product model with the requirements laid down in this Regulation, for the requirements referred to in this Annex the authorities of Great Britain must apply the following procedure—]

Textual Amendments

F3 Words in Annex 6 substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(b) (as amended by S.I. 2020/1528, regs. 1(2), 6(3)(4)(b)(xxi)); 2020 c. 1, Sch. 5 para. 1(1)

(1)

The [F2 Great Britain] authorities shall verify one single unit of the model.

(2)

The model shall be considered to comply with the applicable requirements if:

(a)

the values given in the technical documentation pursuant to [F4 paragraph 1(2) of Part 1 of Schedule 1A to the Ecodesign for Energy-Related Products Regulations 2010], and, where applicable, the values used to calculate these values, are not more favourable for the manufacturer or importer than the results of the corresponding measurements carried out pursuant to [F5 paragraph 1(2)(b)(vii) of Part 1 of Schedule 1A to those Regulations]; and

(b)

the declared values meet any requirements laid down in this Regulation, and any required product information published by the manufacturer or importer does not contain values that are more favourable for the manufacturer or importer than the declared values; and

(c)

when the [F2 Great Britain] authorities test the unit of the model, the determined values (the values of the relevant parameters as measured in testing and the values calculated from these measurements) comply with the respective verification tolerances as given in Table 1.

(3)

If the results referred to in point 2(a) or (b) are not achieved, the model and all equivalent ventilation unit models that have been listed as equivalent models in the manufacturer's or importer's technical documentation shall be considered not to comply with this Regulation.

(4)

If the result referred to in point 2(c) is not achieved:

(a)

for models that are produced in quantities of less than five per year, the model shall be considered not to comply with this Regulation;

(b)

for models that are produced in quantities of five or more per year, the [F2 Great Britain] authorities shall select three additional units of the same model for testing. As an alternative, the three additional units selected may be of one or more different models that have been listed as equivalent models in the manufacturer's or importer's technical documentation. The model shall be considered to comply with the applicable requirements if, for these three units, the arithmetical mean of the determined values complies with the respective verification tolerances given in Table 1.

(5)

If the result referred to in point 4(b) is not achieved, the model and all equivalent ventilation unit models that have been listed as equivalent models in the manufacturer's or importer's technical documentation shall be considered not to comply with this Regulation.

(6)

F6 . . . . . . . . . . . . . . . . . . . . . . . . . .

Textual Amendments

F4 Words in Annex 6 para. (2)(a) substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(c)(i); 2020 c. 1, Sch. 5 para. 1(1)

F5 Words in Annex 6 para. (2)(a) substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(c)(ii); 2020 c. 1, Sch. 5 para. 1(1)

F6 Annex 6 para. (6) omitted (31.12.2020) by virtue of The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(d); 2020 c. 1, Sch. 5 para. 1(1)

The [F2 Great Britain] authorities shall use the measurement and calculation methods set out in Annexes VIII and IX.

The [F2 Great Britain] authorities shall only apply the verification tolerances that are set out in Table 1 and shall only use the procedure described in points 1 to [F7 5] for the requirements referred to in this Annex. No other tolerances, such as those set out in [F8 designated] standards or in any other measurement method, shall be applied.

Textual Amendments

F7 Word in Annex 6 substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(e)(i); 2020 c. 1, Sch. 5 para. 1(1)

F8 Word in Annex 6 substituted (31.12.2020) by The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 2 para. 23(9)(e)(ii); 2020 c. 1, Sch. 5 para. 1(1)

Table 1

Verification tolerances

Parameters	Verification tolerances
SPI	The determined value shall be no more than 1,07 times the declared value.
Thermal efficiency RVU and NRVU	The determined value shall be no less than 0,93 times the declared value.
SFP int	The determined value shall be no more than 1,07 times the declared value.
Fan efficiency UVU, non-residential	The determined value shall be no less than 0,93 times the declared value.
Sound power level RVU	The determined value shall be no more than the declared value plus 2 dB.
Sound power level NRVU	The determined value shall be no more than the declared value plus 5 dB.]

ANNEX VII U.K. Benchmarks

Residential ventilation units:

(a)

SEC: – 42 kWh/(m².a) for BVUs, and – 27 kWh/(m².a) for UVUs.

(b)

Heat recovery η_t: 90 % for BVUs.

Non-residential ventilation units:

(a)

SFP_int: 150 W/(m³/s) below the Tier 2 limit for NRVUs with flow rate ≥ 2 m³/s, and 250 W/(m³/s) below the Tier 2 limit for NRVUs with flow rate < 2 m³/s

(b)

Heat recovery η_{t_nrvu} : 85 %, and with run-around heat recovery systems 80 %.

ANNEX VIII U.K. Calculation of the specific energy consumption requirement

The specific energy consumption SEC is calculated with the following equation:

where:

• SEC is Specific Energy Consumption for ventilation per m² heated floor area of a dwelling or building [kWh/(m².a)];

• t_a is annual operating hours [h/a];

• pef is primary energy factor for electric power generation and distribution [-];

• q_net is net ventilation rate demand per m² heated floor area [m³/h.m²];

• MISC is an aggregated general typology factor, incorporating factors for ventilation effectiveness, duct leakage and extra infiltration [-];

• CTRL is ventilation control factor [-];

• x is an exponent that takes into account non-linearity between thermal energy and electricity saving, depending on motor and drive characteristics [-];

• SPI is Specific Power Input [kW/(m³/h)];

• t_h is total hours heating season [h];

• ΔΤ_h is the average difference in indoor (19 °C) and outdoor temperature over a heating season, minus 3K correction for solar and internal gains [K];

• η_h is the average space heating efficiency [-];

• c_air is the specific heat capacity of air at constant pressure and density [kWh/(m³ K)];

• q_ref is the reference natural ventilation rate per m² heated floor area [m³/h.m²];

• η_t is the thermal efficiency of heat recovery [-];

• Q_defr is the annual heating energy per m² heated floor area [kWh/m².a] for defrosting, based on a variable electric resistance heating.

  ,

  where

  • t_defr is the duration of defrosting period, i.e. when the outdoor temperature is below – 4 °C [h/a], and

  • ΔΤ_defr is the average difference in K between the outdoor temperature and – 4 °C during the defrosting period.

  Q_defr applies only to bidirectional units with recuperative heat exchanger; for unidirectional units or units with regenerative heat exchanger is Q_defr = 0.

SPI and η_t are values derived from tests and calculation methods.

Other parameters and their defaults are given in Table 1.

Table 1

SEC calculation parameters

a Defrosting applies only to bidirectional units with recuperative heat exchanger and is calculated as Qdefr = tdefr * Δtdefr * cair * qnet * pef. For unidirectional units or unit with regenerative heat exchanger is Qdefr = 0
general typology					MISC
Ducted units					1,1
Non-ducted units					1,21
ventilation control					CTRL
Manual control (no DCV)					1
Clock control (no DCV)					0,95
Central demand control					0,85
Local demand control					0,65
motor & drive					x-value
on/off & single speed					1
2-speed					1,2
multi-speed					1,5
variable speed					2
Climate	th in h	ΔΤh in K	tdefr in h	ΔΤdefr in K	Qdefr ain kWh/a.m2
Cold	6 552	14,5	1 003	5,2	5,82
Average	5 112	9,5	168	2,4	0,45
Warm	4 392	5	—	—	—
Defaults					value
specific heat capacity of air, cair in kWh/(m3K)					0,000344
net ventilation requirement per m2 heated floor area, qnet in m3/h.m2					1,3
reference natural ventilation rate per m2 heated floor area, qref in m3/h.m2					2,2
annual operating hours, ta in h					8760
primary energy factor electric power generation & distribution, pef					2,5
space heating efficiency, ηh					75 %

ANNEX IX U.K. Measurements and calculations for NRVUs

NRVUs shall be tested and calculated using a ‘reference configuration’ of the product.

Dual use units shall be tested and calculated in the ventilation mode.

1. THERMAL EFFICIENCY OF A NON-RESIDENTIAL HEAT RECOVERY SYSTEM U.K.

The thermal efficiency of a non-residential heat recovery system is defined as

where:

• η_t is the thermal efficiency of the HRS [-];

• t₂″ is temperature of the supply air leaving the HRS and entering the room [°C];

• t₂′ is temperature of the outside air [°C];

• t₁′ is temperature of the exhaust air, leaving the room and entering the HRS [°C].

2. FILTER CORRECTIONS U.K.

In case one or both filters are missing in comparison to reference configuration, the following filter correction shall be used:

• From 1 January 2016:

  • F = 0 in case the reference configuration is complete;

  • F = 160 if the medium filter is missing;

  • F = 200 if the fine filter is missing;

  • F = 360 if both the medium and the fine filters are missing.

• From 1 January 2018

  • F = 150 if the medium filter is missing;

  • F = 190 if the fine filter is missing;

  • F = 340 if both the medium and the fine filters are missing.

‘fine filter’ means a filter that meets the conditions for filter efficiency in the following test and calculation methods, to be declared by the filter supplier. Fine filters are tested at air flow of 0,944 m³/s and filter face 592 × 592 mm (installation frame 610 × 610 mm) (face velocity 2,7 m/s). After proper preparation, calibration and checking the airstream for uniformity, initial filter efficiency and pressure drop of the clean filter are measured. The filter is progressively loaded with appropriate dust up to a final filter pressure drop of 450 Pa. At first 30 g is loaded in the dust generator subsequently there must be at least 4 equidistant dust loading steps before reaching the final pressure. The dust is fed to the filter at a concentration of 70 mg/m³. Filter efficiency is measured with droplets in the size range 0,2 to 3 μm of a test aerosol (DEHS DiEthylHexylSebacate) at a rate of about 0,39 dm³/s (1,4 m³/h), Particles are counted 13 times, successively upstream and downstream of the filter at minimum 20 seconds with an optical particle counter (OPC). Incremental filter efficiency and pressure drop values are established. Average filter efficiency over the test for the various particle size classes is calculated. To qualify as a ‘fine filter’ the average efficiency for particle size 0,4 μm should be more than 80 % and the minimum efficiency should be more than 35 %. The minimum efficiency is the lowest efficiency among the discharged efficiency, initial efficiency and the lowest efficiency throughout the loading procedure of the test. The discharge efficiency test is largely identical to the average efficiency test above, except that the flat sheet of filter media sample is electrostatically discharged with isopropanol (IPA) before testing.

‘medium filter’ means a filter that meets the following conditions for filter efficiency: A ‘medium filter’ is an air filter for a ventilation unit with performance tested and calculated as for the fine filter, but meeting the conditions that the average efficiency for particle size 0,4 μm should be more than 40 %, to be declared by the filter supplier.