EN    EN  
 EUROPEAN 
COMMISSION  
Brussels, XXX   
[…](2013) XXX  draft 
  
COMMISSION REGULATION (EU) No …/.. 
of XXX  
laying down ecodesign requirements for ventilation units  
(Text with EEA relevance) 
  
EN 2   EN COMMISSION REGULATION (EU) No …/.. 
of XXX  
laying down ecodesign requirements for ventilation units 
(Text with EEA relevance) 
THE EUROPEAN COMMISSION, 
Having regard to the Treaty on the Functioning of the European Union, Having regard to Directive 2009/125/EC of the Eu ropean Parliament and of the Council of 21 
October 2009 establishing a framework for th e setting of ecodesign requirements for energy-
related products
1, and in particular Article 15(1) thereof, 
Whereas: (1)
 Under Directive 2009/125/EC energy-related products re presenting significant 
volumes of sales and trade, having significant environmenta l impact within the Union 
and presenting significant poten tial for improvement in terms of their environmental 
impact, without entailing excessive costs, are to be covered by an implementing measure or a self-regulation measur e regarding ecodesign requirements. 
(2)
 The Commission has assessed the technical,  environmental and economic aspects of 
ventilation units. The assessment showed that  ventilation units ar e placed on the Union 
market in large quantities. The energy consumption in the use phase is the most significant environmental aspect of ventilat ion units, presenting si gnificant potential 
for cost-effective energy savings an d greenhouse gas emission reduction.  
(3)
 Fans are an important part of ventilati on units. Generic minimum energy efficiency 
requirements for fans have been estab lished in Commission Regulation (EU) No 
327/20112. The power consumption of the ventilation functions of fans which are part 
of ventilation units is covered by the mi nimum energy performance requirements of 
that Regulation, but many ventilation units use fans not covered by it. It is therefore necessary to introduce implementing measures for ventilation units. 
(4)
 A distinction should be made between meas ures applying to residential ventilation 
units and those applying to non-residential ventilation units on the basis of their 
individual air flow rate because two differe nt sets of measurement standards are used 
in practice. However, considering that the two types of ventilati on units offer similar 
functionalities, a single set or a more harm onised set of requirements should be used 
for both types. As developing those requireme nts will take several years, the issue 
should be addressed in the re view of this Regulation. 
(5) Small ventilation units whic h have a single fan and a nominal power input smaller 
than 30 W should be exempted from the sc ope of this Regulation. Those units are 
                                                 
1 OJ L 285, 31.10.2009, p. 10. 
2 Commission Regulation (EU) No 327/2011 of 30 March 2011 implementing Directive 2009/125/EC of 
the European Parliament and of the Council with regard to ecodesign requirements for fans driven by 
motors with an electric input power between 125 W and 500 kW (OJ L 90, 6.4.2011, p. 8).  
EN 3   EN designed for many different applications, predominantly working intermittingly and 
with supplementary functions only, for ex ample in bathrooms. Including those would 
represent a considerable administrative burde n in terms of market  surveillance because 
of large sales numbers, while contributing only to a small share of the energy saving 
potential. Furthermore, ventilation units sp ecifically designed to operate exclusively 
for emergency purposes or in exceptional or  hazardous environments should also be 
exempted, as they are used rarely and for a short time. However, considering that they 
offer similar functionalities to other vent ilation units, their po ssible inclusion should 
similarly be addressed in the review of this Regulation.  
(6) The Commission has carried out preparatory studies to analyse the technical, 
environmental and economic aspects of re sidential and non-residential ventilation 
units. The studies have been developed toge ther with stakeholders and interested 
parties from the Union and third countries, and the results have been made publicly 
available. 
(7) The environmental parameter of the products covered which has been identified as the 
most significant for the purposes of this Regulation is energy consumption in the use phase. The annual electricity consumption of  products subject to this Regulation was 
estimated at 77.6 TWh in the Union in 2010.  At the same time, these products save 
2 570 PJ on energy for heating space. In aggr egate, using a primary energy conversion 
coefficient of 2.5 for electricity, the ener gy balance is 1 872 PJ primary energy of 
annual saving in 2010. Without specific measur es, the aggregate saving is projected to 
grow to 2 829 PJ in 2025.  
(8)
 The preparatory studies show that the ener gy consumption of products subject to this 
Regulation can be significantly reduced. The combined effect of the ecodesign 
requirements set out in this Regulation and  in Commission Delegated Regulation 
(EU) No …3 is expected to result in an aggregate increase in savings by 1 300 PJ 
(45%) to a level of 4 130 PJ in 2025. 
(9) The preparatory studies show that requ irements regarding the other ecodesign 
parameters referred to in Part 1 of Annex I to Directive 2009/125/EC are not necessary 
for ventilation units as en ergy consumption in the use phase is by far the most 
important environmental parameter.  
(10) The ecodesign requirements should be introdu ced gradually in order to provide a 
sufficient timeframe for manufacturers to  re-design products subject to this 
Regulation. The timing should take into acc ount the impact on costs for end-users and 
manufacturers, in particular  small and medium-sized enterprises, while ensuring that 
the environmental performance of ventilation units is improved without unnecessary delay.  
(11)
 Product parameters should be measured a nd calculated using reliable, accurate and 
reproducible methods which take into account  recognised state-of-the-art measurement 
and calculation methods, including, where avai lable, harmonised standards adopted by 
the European standardisation bodies fo llowing a request by the Commission, in 
                                                 
3 Commission Delegated Regulation (EU) No … of … supplementing Directive 2010/30/EU of the 
European Parliament and of the Council with regard to energy labelling of residential ventilation units 
(OJ [...] [... ], [...], [...]).  
EN 4   EN accordance with the procedures laid down in Regulation (EU) 1025/2012 of the 
European Parliament and of the Council4.  
(12) Benchmarks for currently available ventilat ion unit types with high energy efficiency 
should be identified in the implementing meas ure on the basis of information gathered 
during the preparation of the measure, in orde r that manufacturers can make use of this 
assessment to evaluate alternative design solutions and the achieved environmental 
performance of the product against benchmar ks. This will help to ensure a wide 
availability and easy accessibility of inform ation, in particular for small and medium-
sized enterprises and very small firms, whic h will further facilitate the integration of 
best design technologies and facilitate the development of more efficient products for 
reducing energy consumption.  
(13) The Consultation Forum referred to in Artic le 18 of Directive 2009/125/EC has been 
consulted. 
(14) The measures provided for in this Regulati on are in accordance with the opinion of the 
Committee established by Article 19(1) of Directive 2009/125/EC. 
HAS ADOPTED THIS REGULATION:  
Article 1 
Subject matter and scope 
1. This Regulation applies to ventilation un its and establishes ec odesign requirements 
for their placing on the market.  
2. This Regulation shall not apply to  ventilation units which are::  
(a) unidirectional (exhaust or supply) and equipped with  one or more individual 
fans with an electric powe r input of less than 30 W; 
(b) specified as operating exclusively in a potentially explosive atmosphere as 
defined in Directive 94/9/EC of the Eu ropean Parliament and of the Council5; 
(c) specified as operating exclusively for em ergency use, for short periods of time, 
and which comply with the basic requi rements for construction works with 
regard to safety in case of fire as se t out in Regulation (EU) No 305/2011 of the 
European Parliament and of the Council6; 
(d) specified as operating exclusively: 
(i) where operating temperatures of  the air being moved exceed 100 °C; 
(ii) where the operating ambient temperat ure for the motor, if located outside 
the air stream, driving the fan exceeds 65 °C; 
                                                 
4 Regulation (EU) 1025/2012 of the European Parliament and of the Council of 25 October 2012 on 
European standardisation (OJ L 316, 14.11.2012, p. 12). 
5 Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation 
of the laws of the Member States concerning equipment and protective systems intended for use in 
potentially explosive atmospheres (OJ L 100, 19.4.1994, p. 1). 
6 Regulation (EU) No 305/2011 of the European Parliament and of the Council of 9 March 2011 laying 
down harmonised conditions for the marketing of construction products and repealing Council 
Directive 89/106/EEC (OJ L 88, 4.4.2011, p. 5).  
EN 5   EN (iii) where the temperature of the ai r being moved or the operating ambient 
temperature for the motor, if locate d outside the air stream, are lower 
than -40 °C  
(iv) where the supply voltage exceeds 1 000 V AC or  1 500 V DC; (v) in toxic, highly corrosive or flam mable environments or in environments 
with abrasive substances; 
(e) units which include a heat  exchanger or a heat pump for heat recovery, and the 
purpose of which is predominantly heating or cooling. 
Article 2 
Definitions 
 For the purposes of this Regulation the following definitions shall apply: 
(1) ‘ventilation unit (VU)’ means an electric mains-operated ap pliance equipped with an 
impeller, a motor and a casing and intended to  replace utilised air by outdoor air in a 
building or a part of a building;  
(2) ‘residential ventilation unit’ (RVU) means a ventilation unit fulfilling one of the 
following conditions: 
(a) the maximum flow rate does not exceed 250 m³/h;  (b) the maximum flow rate  is between 250 and 1 000 m³ /h, and the manufacturer 
declares its intended use as being exclusively for a residential ventilation application;  
(3)
 ‘non-residential ventilati on unit’ (NRVU) means a ve ntilation unit where the 
maximum flow rate of the ventilation unit exceeds 250 m³/h, and the manufacturer 
has not declared its intended use as being exclusively for a residential ventilation application;  
(4)
 ‘maximum flow rate’ is the declared maximu m air volume flow rate of a ventilation 
unit that can be achieved w ith integrated or separate ly co-supplied controls at 
standard air conditions (20  °C) and 101  325 Pa, where the unit is installed complete 
(e.g. including clean filters) and according to the manufacturer’s instructions;  
(5) ‘unidirectional vent ilation unit’ (UVU) means a ve ntilation unit producing an air 
flow in one direction only, either fr om indoors to outdoors (exhaust) or from 
outdoors to indoors (supply), operating in a building ventilation system where the 
mechanically produced air flow is balanc ed by natural air s upply or extraction 
provisions; 
(6) ‘bidirectional ventilation un it’ (BVU) means a ventilati on unit which produces an air 
flow between indoors and outdoors and is equipped with both exhaust and supply 
fans. 
For the purposes of Annexes II to IX, additi onal definitions are set out in Annex I. 
Article 3 
Ecodesign requirements 
1. From 1 January 2016 RVUs shall comply with the specific ec odesign requirements 
set out in Annex II, point 1.  
EN 6   EN 2. From 1 January 2016 NRVUs shall comply  with the specific ecodesign requirements 
set out in Annex III, point.1.  
3. From 1 January 2018 RVUs shall comply with the specific ec odesign requirements 
set out in Annex II, point 2. 
4. From 1 January 2018 NRVUs shall comply  with the specific ecodesign requirements 
set out in Annex III point 2.   
Article 4 
Information requirements  
1. From 1 January 2016 manufacturers of RV Us shall comply with the information 
requirements set out in Annex IV. 
2. From 1 January 2016 manufacturers of NRVUs shall comply with the information 
requirements set out in Annex V. 
Article 5 
Conformity assessment  
1. Manufacturers of ventilation units shall carry out the conformity assessment laid 
down in Article 8 of Directive 2009/125/EC us ing the internal design control system 
set out in Annex IV to that  Directive or the management system set out in Annex V 
to that Directive. 
For the purposes of the conformity assessm ent of RVUs, calculation of the specific 
energy consumption requirement shall be car ried out in accorda nce with Annex VIII 
to this Regulation. 
For the purposes of the conformity assessment of NRVUs, measurements and 
calculations for the specific ecodesign requirements shall be carried out in accordance with Annex IX to this Regulation. 
2. The technical documentation file compiled in accordance with Annex IV to Directive 
2009/125/EC shall contain a copy of the produc t information set out in Annexes IV 
and V to this Regulation.  
Where the information included in the technical documentation for a particular 
ventilation unit model has been obtained by calculation on the basis of design, or 
extrapolation from other equivalent ve ntilation units, or both, the technical 
documentation shall include the following information: 
(a) details of such calculation s or extrapolations, or both; 
(b) details of tests undertaken by manufact urers to verify the accuracy of the 
calculations and extrapolations; 
(c) a list of any other vent ilation unit models where the information included in the 
technical documentation was obtained on the same basis.  
Article 6 
Verification procedure for market surveillance purposes  
The authorities of the Member States shall ap ply the verification pro cedure set out in Annex 
VI when performing the market surveillance re ferred to in Article 3(2) of Directive  
EN 7   EN 2009/125/EC to ensure compliance w ith the requirements set out fo r RVUs in Annex II to this 
Regulation and for NRVUs in A nnex III to this Regulation. 
Article 7 
Benchmarks 
The benchmarks referred to in point (2) of Part 3 of Annex I to Directive 2009/125/EC which 
are to be applied to ventilation units, are se t out in Annex VII to this Regulation.  
 
Article 8 
Review 
 
The Commission shall review th is Regulation in the light of  technological progress no later 
than 1 January 2019 and present the results of this review to the Consultation Forum.  
The review shall include an assessment of the following: 
(a)  the possible extension of the scope of this Regulation to cover units with a 
nominal power input smaller than 30 W;  
(b)  the verification toleranc es set out in Annex VI; 
(c)  the need to set requirem ents on air leakage rate; 
(d)  the need to set a further tier with tightened ecodesign requirements; 
(e)  the possibility of establishing a single  set of requirements for both RVUs and 
NRVUs or harmonising their requirements.  
Article 9 
Entry into force 
This Regulation shall enter into force on the twentieth day following that of its publication in 
the Official Journal of  the European Union . 
This Regulation shall be binding in  its entirety and directly applicable in all Member States. 
Done at Brussels, 
 For the Commission 
 On behalf of the President    [Position]  
EN 8   EN ANNEX I  
Definitions 
Definitions applicable for the purposes of  Annexes II to IX to this Regulation: 
1. Definitions for RVUs:  
(1) ‘specific energy consumption (SEC)’ (expressed in kWh/(m2.a)) means a specific 
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 referen ce 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 power converter, integrated or 
functioning as one system or as a separate delivery with the motor and the fan, which 
continuously adapts the electrical power supp lied to the motor in order to control its 
mechanical power output according to the torque -speed characteristic of the load it is 
driving, including EC (electronically commuta ted) motors with an internal control 
which can be considered to fulfil the VSD requirement, excluding variable voltage controllers where only the supply vo ltage for the motor is varied; 
(5)
 ‘heat recovery system (HRS)’  means the part of a bidi rectional 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 ( ηt)’ means the ratio between supply air 
temperature gain and exhaust air temper ature loss, both relative to the outdoor 
temperature, measured unde r dry conditions of the HR, and standard air conditions, 
with balanced mass flow, an indoor-out door temperature difference of 13 K, no 
correction for thermal heat gain from fan motors and no specific restrictions on 
internal leakage; 
(7) ‘internal leakage rate’  means the fraction of extract ai r present in the supply air of 
ventilation units with HRS as a result of le akage between extract and supply airflows 
inside the casing when the unit is operated at reference air volume flow, measured at 
the ducts; 
(8) ‘external leakage rate’  means the fraction of reference air volume flow escaping 
from the casing of a unit when it is  subjected to a pressure test; 
(9) ‘mixing’  means the immediate recirculation or short-circuiting of airflows between 
discharge and intake ports at both the indoo r and outdoor terminals so that they do 
not contribute to the effective ventilati on of a building space, when the unit is 
operated at reference air volume rate; 
(10) ‘mixing rate’  means the fraction of extract airflow,  as part of the total reference air 
volume, that recirculates between discharg e and intake ports at  both the indoor and 
outdoor terminals and thus doe s not contribute to the e ffective 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.  
EN 9   EN (11) ‘effective power input’  (expressed in W) means the elec tric power input at reference 
flow rate and corresponding external to tal pressure difference and includes the 
electrical demand for fans, controls (including remote controls) and the heat pump (if 
integrated); 
(12) ‘Specific power input (SPI)’  (expressed in W/(m³/h)) means the ratio between the 
electric power input (in W) and th e reference flow rate (in m³/h); 
(13) ‘flow rate/pressure diagram’  means a set of curves for fl ow 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 va riable fan speed drive, includes at least a 
minimum, maximum and appropriate intermed iate curve close to the reference air 
volume and pressure difference for SPI testing; 
(14)
  ‘reference flow rate’  (expressed in m³/s) is the abscis sa 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 bidirecti onal ventilation units, the reference air 
volume flow rate applies to the air supply outlet; 
(15) ‘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 th e description 
in Annex VIII Table 1; 
(16) ‘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 (CO 2), volatile organic compounds (VOC) or 
other gases, presence, motion or occupanc y detection from in frared body heat or 
from reflection of ultrasonic waves, elect rical signals from hu man operation of lights 
or equipment; 
(17) ‘manual control’  means any control type that  does not use demand control; 
(18) ‘demand control’  means a device or set of devices, making up part of the ventilation 
unit product package placed on the market, th at measures a control parameter and 
uses the result to regulate automatically the flow rate of the unit and/or the flow rates of the air terminals that make up part of the unit package pl aced on the market; 
(19)
 ‘clock control’  means a clocked (daytime-controlled) human interface to control the 
fan speed/flow rate of the ventilation un it, 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; 
(20)
 ‘demand controlled ventilation (DCV)’  means a ventilation unit that uses demand 
control; 
(21) ‘ducted unit’  means a central ventilation unit intended to ventilate more than one 
enclosed space in a building through the us e of air ducts, intended to be equipped 
with duct connections;  
(22) ‘non-ducted unit’  means a single room ventilation unit intended to ventilate a single 
enclosed room or space in a building, a nd not intended to be equipped with duct 
connections (non-ducted unit);  
EN 10   EN (23) ‘central demand control’  means a demand control of a ducted ventilation unit  that 
regulates the fan speed(s) and flow rate ba sed on at least one sensor for the whole 
dwelling at central level; 
(24) ‘partial local demand control’  means a demand control for a ducted ventilation unit 
that regulates the fan speed(s) and individual  flow rates in at least three different 
enclosed spaces serviced by the unit; 
(25) ‘full local demand control’  means a demand control that continuously detects 
individual demand parameters and regulates  the flow rates in all enclosed spaces 
serviced by the 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 ou tlet and the unit outlet area; 
(30) ‘recuperative heat exchanger’  means a heat exchanger intended to transfer thermal 
energy from one air stream to another w ithout moving parts, such as a plate or 
tubular heat exchanger with parallel fl ow, cross flow or counter flow, or a 
combination of these, or a plate or tubul ar heat exchanger with vapour diffusion; 
(31) ‘regenerative heat exchanger’  means a rotary heat excha nger 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 leak age of air from one stream or another; 
such heat exchangers have varying degree s 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. 
2. Definitions for NRVUs:  
(1) ‘nominal electric power input  (P)’ (expressed in kW) means the electric power 
consumption of the fan drives, including any motor control equipment, at the 
nominal external pressure and the nominal airflow; 
(2)  ‘fan efficiency  (ηfan)’ means the static efficien cy including motor and drive 
efficiency of the individual fan(s) in the ventilation unit as defi ned in and tested in 
accordance with  Regulation (EU) No 327/2011;  
(3) 'minimum fan efficiency  (ηvu)' is the specific minimum efficiency requirement for 
VUs within the scope of this Regulation;  
(4) ‘nominal flow rate  (qv)'(expressed in m³/s) means the d eclared design flow rate of an 
NRVU at standard air conditions 20 °C and 101325 Pa, whereby the unit is installed 
complete (for example, including filte rs) and according to the manufacturer 
instructions;   
EN 11   EN (5) ‘nominal external pressure  (Δps, ext)' in (expressed in Pa) means the declared design 
external static pressure difference at nominal flow rate; 
(6) ‘maximum rated fan speed  (vfan_rated )’ (expressed in rounds per minute – rpm)) is the 
fan speed at nominal flow rate and nominal external pressure; 
(7) ‘internal pressure drop of ventilation components  (Δps,int)’ (expressed in Pa) means 
the sum of the static pressure drops at nominal flow rate and nominal external 
pressure for a BVU over the casing, cl ean fine filter on the supply side, clean 
medium filter on the exhaust side and h eat recovery system on both supply and 
exhaust side, and for a UVU over the casing and possibly a clean fine filter; 
(8) ‘internal pressure drop of add itional non-ventilation components  (Δps,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 subtrac tion of the internal 
pressure drop of ventilation components ( Δps,int); 
(9) ‘thermal efficiency of a non-residential HRS ( ηt_nrvu)’ means the ratio between supply 
air temperature gain and the exhaust air te mperature loss, both relative to the outdoor 
temperature, measured under dry referen ce 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;;  
(10) ‘internal specific fan powe r of ventilation components  (SFP int)’ is the ratio between 
the internal pressu re drop of ventilation compone nts and the fan efficiency, 
determined for the  reference configuration, as  described in Annex VI; 
(11) 'maximum internal specific fa n 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;  
(12) ‘run-around HRS’ is a heat recovery system where the heat recovery device on the 
exhaust side and the device supplying the r ecovered heat to the air stream on the 
supply side of a ventilated space are connect ed through a heat transfer system where 
the two sides of the HRS can be freely pos itioned in different parts of a building; 
(13) 'efficiency bonus (E)'  is a correction factor taking account of the fact that more 
efficient heat recovery causes more pre ssure drops requiring more specific fan 
power; 
(14) 'filter correction (F')  (expressed in Pa) is a correction value  to be applied if a unit 
deviates from the reference configuration of a BVU;  
(15)  ‘fine filter  (F7)'  means a filter that meets the releva nt conditions described in Annex 
IX; 
(16) ‘medium filter  (M5)'  means a filter that meets the relevant conditions described in 
Annex IX;  
(17) ‘filter efficiency’  means the average gravimetric 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.  
EN 12   EN  
ANNEX II  
Specific ecodesign and requirements for RVUs, as  referred to in Article 3(1) and 3(3) 
1. From 1 January 2016:  
- SEC 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 extrac t air side shall have a maximum L WA of 45 dB. 
- All VUs shall be equipped with a multi-speed drive or variable speed drive. 
- All BVUs shall have a thermal by-passable heat recovery system. 
2. From 1 January 2018:  
- SEC 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 extrac t air side shall have a maximum L WA of 40 dB. 
- All VUs shall be equipped with a multi-speed drive or variable speed drive. 
- All BVUs shall have a thermal by-passable heat recovery system. 
- Ventilation units with a filter shall be equi pped with a visual filter change warning 
signal.  
EN 13   EN  
ANNEX III  
Specific ecodesign requirements for NRVUs, as referred to in Article 3(2) and 3(4) 
1. From 1 January 2016:  
- All ventilation 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 ηt_nrvu of run-around HRS in BVUs shall be 63  % and 
the efficiency bonus E = ( ɳt_nrvu  -0.63)*3  000 if the thermal efficiency ɳt_nrvu is at least 
63 %, otherwise E = 0. 
- The minimum thermal efficiency ηt_nrvu of all other heat recovery systems (HRS) in 
BVUs shall be 67  % and the efficiency bonus E = ( ɳt_nrvu  -0.67)*3000 if the thermal 
efficiency ɳt_nrvu is at least 67  %, otherwise E = 0. 
- The minimum fan efficiency for UVUs ( ηvu) 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* qnom/2 – F if qnom  < 2 m³/s and 
1 400 + E – F if qnom ≥ 2 m³/s;  
– for a BVU with other HRS  
1 200 + E – 300* qnom/2 – F if qnom  < 2 m³/s and 
900 + E – F if qnom ≥ 2 m³/s;  
– 250 for an UVU intended to be used with a filter. 
2. From 1 January 2018:  
- All ventilation 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 ηt_nrvu of run-around HRS in BVUs shall be 68  % and 
the efficiency bonus E = ( ɳt_nrvu -0.68)*3  000 if the thermal efficiency ɳt_nrvu is at least 
68 %, otherwise E = 0. 
- The minimum thermal efficiency ηt_nrvu of all other heat recovery systems (HRS) in 
BVUs shall be 73  % and the efficiency bonus E = ( ɳt_nrvu  -0.73)*3  000 if the thermal 
efficiency ɳt_nrvu is at least 73  %, otherwise E = 0. 
- The minimum fan efficiency for UVUs ( ηvu) is  
 6,2  % * ln(P) + 42,0 % if P ≤ 30 kW and   
EN 14   EN  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* qnom/2 – F if qnom < 2 m³/s and 
1 300 + E – F if qnom ≥ 2 m³/s;  
– for a BVU with other HRS  
1 100 + E – 300* qnom/2 – F if qnom < 2 m³/s and 
800 + E – F if qnom ≥ 2 m³/s;  
– 230 for an UVU intended to be used with a filter. 
- If a filter unit is part of the configurati on 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. 
  
EN 15   EN  
ANNEX IV  
Information requirements for RVUs as  referred to in Article 4(1)  
1. From 1 January 2016, the following produc t information shall be provided: 
(a) supplier's name or trade mark; 
(b) supplier's model identifier i.e. the code, us ually alphanumeric, used to distinguish a 
specific residential ventilation unit model fr om other models with the same trade 
mark or supplier’s name; 
(c) specific energy consumption (SEC) in kWh/(m2.a); 
(d) declared typology in accordance with Artic le 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 ‘zero’); 
(h) maximum flow rate in m³/h (for ducted uni ts related to the ai r flow at 100 Pa of 
external static pressure difference, and fo r non-ducted units to the air flow at the 
lowest achievable total pressure difference to  be chosen from a set of values of 10 
(minimum)-20-50-100-150-200-250 Pa, whiche ver is equal or just below the 
measured pressure difference value); 
(i) electric power input of the fan drive, in cluding any motor control equipment, at 
maximum flow rate (W);  
(j) sound power level (LWA), 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 acco rdance with the relevant definitions and 
classification in Annex VIII Table 1;  
(o) guaranteed maximum internal and external  leakage factors (%) for bidirectional 
ventilation units or external leakage fact or (%) for ducted unidi rectional ventilation 
units;  
(p) mixing rate of local bidirectional ventil ation units with fixed air terminals; 
(q) position and description of visual filter warning for RVUs intended for use with 
filters, including text pointing out the im portance of regular filter changes for 
performance and energy efficiency of the unit; 
(r) for unidirectional ventilation systems, instru ctions to install regulated supply/exhaust 
grilles in the façade for na tural air supply/extraction; 
(s) internet address for pre-/dis-assembly instructions as referred to in point 4; 
(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;  
EN 16   EN (v) for non-ducted units only: the airborne sound insulation. 
2. The information listed in point 3.1 (a) to  (j) shall be displayed on the nameplate. 
3. The information listed in point 3.1 (a) to (v) shall be available on: 
• the technical documentation of RVUs; and  
• free access websites of manufacturers, th eir authorised representatives, or 
importers. 
4. 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 effi cient materials recycling.  
EN 17   EN  
ANNEX V  
Information requirements for NRVUs as  referred to in Article 4(2)  
1. From 1 January 2016, the following produc t information shall be provided: 
(a)  supplier’s name or trade mark; 
(b)  supplier’s model identifier, i.e. the code, usually alphanumeric, used to 
distinguish a specific non-residential ve ntilation unit model from other models 
with the same trade mark or supplier’s name; 
(c)  declared typology in accordance w ith 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 heat recovery syst em (run-around, other, none); 
(f)  thermal efficiency of heat recovery (in % or ‘zero’);  
(g)  nominal NRVU flow rate in m³/s; 
(h)  electric power input of th e fan drive, including any motor control equipment, at 
nominal flow rate and external st atic pressure difference (kW);  
(i)  face velocity in m/s at design flow rate; 
(j)  nominal external pressure ( Δps, ext) in Pa; 
(k)  internal pressure drop of  ventilation components ( Δps,int) in Pa; 
(l)  optional: internal pressure dr op of non-ventilation components ( Δps,int) in Pa; 
(m)  static efficiency of fans used in  accordance with Regulation (EU) No 
327/2011; 
(n) guaranteed maximum external leakage fact or (%) of the casing of ventilation 
units; and guaranteed maximum internal leakage factor (%) of bidirectional 
ventilation units or heat recovery sy stems; both measured according to the 
pressurisation test method or tracer gas test method at declared system 
pressure; 
(o) energy performance, preferably  energy classification, of the filters to be used in 
the NRVU according to the reference conf iguration, as described in Annex IX; 
(p) description of visual filt er 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; 
(q)
 in the case of NRVUs specified for use used in inhabited rooms, the casing 
sound power level (L WA), rounded to the nearest integer; 
(r) internet address for pre-/dis-assembly instructions as referred to in point 4; 
(s)  maximum rated fan speed in rpm; 
(t) legal notice declining liability on the part  of the manufacturer for material or 
immaterial damages caused by operating the ventilation unit at a fan speed exceeding the maximum rated fan sp eed indicated under point (s).  
2.
 The information listed in point 2(a) to (h) shall be displayed on the nameplate.   
EN 18   EN 3. The information listed in point 3. 1 (a) to(t) shall be available on: 
- the technical documentation of NRVUs; and  
- free access websites of manufacturers, th eir authorised representatives, or 
importers. 
4. 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 effi cient materials recycling.  
EN 19   EN  
ANNEX VI 
Verification procedure for ma rket surveillance purposes 
For the purposes of checking conformity with the requirements laid down in Annexes II and 
III, Member State authorities shall test a single  ventilation unit. If the measured values or 
values calculated on the basis of measur ed values do not match the manufacturer’s  declared 
values within the meaning of Article 5, subject  to the tolerances in Table 1, measurements 
shall be carried out on three other units.  
If the arithmetic mean of the measured values for these units does not meet the requirements, 
subject to the tolerances in Table 1, the model and all other equivalent models shall be considered not to comply with the requirements of Annexes II and III. 
Member State authorities shall use the meas urement and calculation methods set out in 
Annexes VIII and IX and apply only those tolerances that are set out in Table 1. 
Table 1  
Measured parameter  Verification tolerances  
SEC The measured value shall be no more than 
1,07 times the maximum required value. 
Thermal efficiency NRVU The measured value shall be no less than 0,93 
times the minimum required value.  
SFP int  The measured value shall be no more than 
1,07 times the maximum required value.  
Fan efficiency UVU, non-residential The m easured value shall be no less than 0,93 
times the minimum required value  
Sound power level RVU  The measured value shall be no more than the 
maximum required value plus 2 dB  
The verification tolerances shal l not be used by the manufacturer  or importer in establishing 
the values in the technical documentation or in  interpreting these values with a view to 
achieving compliance.  
EN 20   EN  
ANNEX VII  
Benchmarks 
Residential ventilation units: 
(a) SEC: -42 kWh/(m2.a) for BVUs, and -35 kWh/(m2.a)  for UVUs.  
(b) Heat recovery ηt: 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 custom-built NRVUs with flow 
rate <2 m3/ and at the Tier  2 limit for modular NRVUs  
(b) Heat recovery  ɳt_nrvu: 85%, and with run-around h eat recovery systems 80%.  
EN 21   EN ANNEX VIII  
Calculation of the specific energy consumption requirement 
 The specific energy consumption SEC is calculated with the following equation: 
 
SEC= ta· pef· q net·MISC·CTRLx·SPI –  
th·ΔTh·ηh-1·cair· (q ref – q net·CTRL·MISC·(1- ηt))+Q defr  
 
where 
– SEC is Specific Energy Consumption for ventilation per m² heated floor area of a 
dwelling or building [kWh/(m².a)]; 
– ta is annual operating hours [h/a]; 
– pef is primary energy factor for electric power generation and distribution [-]; 
– qnet is net ventilation rate demand per m² heated floor area [m³/h.m²]; 
– MISC  is an aggregated genera l typology factor, incorporat ing factors for ventilation 
effectiveness, duct leakage and extra infiltration [-]; 
– CTRL is ventilation control factor [-]; 
– x is an exponent that ta kes into account non-linearit y between thermal energy and 
electricity saving, depending on moto r and drive characteristics [-]; 
– SPI is Specific Power Input [kW/(m³/h)]; 
– th is total hours heating season [h]; 
– ΔTh is the average difference in indoor (19°C) and outdoor temperature over a 
heating season, minus 3K correction for solar and internal gains [K]; 
– ηh is the average space heating efficiency [-]; 
– cair is the specific heat capacity of air at c onstant pressure and de nsity [kWh/(m³ K)]; 
– qref is the reference natural ventilation rate per m² heated floor area [m³/h.m²]; 
– ηt is the thermal  efficiency of heat recovery [-]; 
– Qdefr is the annual heatin g energy per m² heated floor area [kWh/m².a] for defrosting, 
based on a variable electric resistance heating. 
 
Qdefr= tdefr·Δtdefr·cair·qnet·pef ,  
 
where  
– tdefr is the duration of defrosting period, i. e. when the outdoor temperature is 
below -4°C [h/a], and  
– Δtdefr is the average difference in K betw een the outdoor temperature and -4°C 
during the defrosting period.  
Qdefr applies only to bidirectional units wi th recuperative heat exchanger; for 
unidirectional units or units with  regenerative heat exchanger is Qdefr=0. 
SPI and ηt are values derived from tests and calculation methods.   
EN 22   EN Other parameters and their defaults are given in Table 1.  
Table 1.  
SEC calculation parameters 
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 
Partial local demand control  0,65 
Full local demand control  0,5 
motor & drive          x-value 
on/off & single speed      1 
2-speed      1,2 
3-speed      1,5 
variable speed     2 
Climate    th 
in hΔTh  
in Ktdefr 
in hΔTdefr 
in K Qdefr * 
in 
Cold   6552 14,5 1003 5,2 5,82 
Average  5112 9,5 168 2,4 0,45 
Warm   4392 5 - - - 
* Defrosting applies only to bidirec tional 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  
Defaults       value 
specific heat capacity of air, cair in kWh/m³   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% 
                 
EN 23   EN  
ANNEX  IX 
Measurements and calculations for NRVUs 
NRVUs shall be tested and cal culated using a ‘reference conf iguration’ of the product.  
Under this reference configura tion a BVU product shall be confi gured with a casing, at least 
two fans with variable speed or multi-speed driv es, a HRS, a clean fine filter F7 on the inlet-
side and a clean medium filter M5 on the exhaust-side.  
Under this reference configura tion, an UVU is a product configur ed 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 F7. 
1. Thermal efficiency of a non-residential heat recovery system  
The thermal efficiency of a non-residential heat recovery system is defined as 
ɳt_nrvu = (t2” – t 2’ )/(t 1’ – t 2’ ) 
where  
– ɳt is the thermal efficiency of the HRS [-];  
– t2” is temperature of the supply air leavi ng the HRS and entering the room [°C];  
– t2’ is temperature of the outside air [°C];  
– t1’ is temperature of the exhaust air, leav ing the room and entering the HRS [°C]. 
 
2. Filter corrections 
In case one or both filters are missing in compar ison to reference confi guration, the following 
filter correction shall be used: 
From 1 January 2016: F=0 in case the reference configuration is complete; F=160 if M5 is missing;  F=200 if F7 is missing;  F=360 if both M5 and F7 filters are missing and From 1 January 2018 F=150 if M5 is missing;  F=190 if F7 is missing;  F=340 if both M5 and F7 filters are missing.  
F7 (fine filter)  means a filter that meets the conditions fo r 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 592x592 mm (ins tallation frame 610x610 mm) (face velocity 2,7 
m/s). After proper preparation, calibration and checking the airs tream 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 equidist ant dust loading steps  
EN 24   EN 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 f ilter 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 efficien cy should be more than 35%. The minimum 
efficiency is the lowest efficiency among the di scharged efficiency, initial efficiency and the 
lowest efficiency throughout the loading procedure of the test. The discharg e 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. 
M5 ('medium filter')  means a filter that meets the followi ng 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 th at the average efficiency for particle size 0,4 
μm should be more than 40%, to be declared by the filter supplier.