CEN/TC 156 - Ventilation for buildings

This document specifies methods for the measurement of air flow rates on site. It provides a description of the air flow rate measurement methods and how measurements are performed within the margins of stipulated method uncertainties. It gives the necessary measurement conditions (e.g. length of straight duct, uniform velocity profile) to achieve the stipulated measurement uncertainties.
The methods for measuring the air flow rate inside ducts do not apply to:
-   ducts that are not circular or rectangular (e.g. oblong ducts);
-   flexible ducts.

This document specifies the dimensions of the circular and rectangular flanges of general‑purpose fans, as well as the fan size designations. It is not applicable to cross‑flow fans or to fan appliances used for individual household or similar applications.
For circular flanges, it provides for three different flange series: one for light‑duty casing thicknesses, another for medium‑duty fans and the third for heavy‑duty fans as used on sea-going vessels or in heavy industry.
In order not to restrict fan design unduly, only the pitch diameter, hole numbers and hole diameters are specified. Flange thickness, as well as internal and external flange diameters, can be chosen freely within the limits of good engineering practice.

This document specifies methods for the testing and rating of dampers and valves used in air distribution systems with pressure differences up to 2 000 Pa.
The tests incorporated in this document will address:
-   leakage past a closed damper or valve (for classification, see Annex C);
-   casing leakage (for classification, see Annex C);
-   flow rate/pressure requirement characteristics;
-   torque: (see Annex A);
-   thermal transmittance: (see Annex B).
The tests specified above are applicable to the following:
-   measurement of leakage past a closed damper or valve;
-   measurement of casing leakage;
-   determination of flow rate and pressure requirements;
-   measurement of torque characteristics (see Annex A);
-   measurement of thermal transfer characteristics to determine insulation properties (see Annex B).
This document does not apply to the acoustic testing of dampers and valves.
NOTE   Certain aspects of the dynamic performance of dampers and/or valves are dependent upon the air distribution system to which they are connected and are, therefore, difficult to measure in isolation. Such considerations have led to the omission of these aspects of the dynamic performance measurements from this document. Also, in common with other air distribution components, the results from tests carried out in accordance with this document might not be directly applicable if the damper or valve is situated in an area of non-uniform flow.

This document defines terms in the field of fans used for all purposes.
It is not applicable to electrical safety.

This document defines categories in the field of fans used for all purposes.
It is not applicable to electrical safety.

This document specifies the laboratory test methods and test requirements for the testing of aerodynamic, thermal, acoustic and the electrical performance characteristics of non-ducted mechanical supply and exhaust residential ventilation units used in single dwellings.
The purpose of this document is not to consider the quality of ventilation but to test the performance of the equipment.
This document is applicable to ventilation units, the latter:
a) containing either:
- fans for mechanical supply and exhaust;
- air filters;
- air-to-air heat exchanger for heat and possibly humidity recovery;
- control system;
- inlet and outlet grilles; or
- alternating heat exchangers which provide separate supply and exhaust air flows;
b) provided either:
- in one assembly; or
- in more than one assembly, the separate assemblies of which are designed to be used together.
This document does not deal with ducted units which are covered by EN 13141-7 or units with heat pumps.
Safety requirements are given in EN 60335-2-40 and EN 60335-2-80.

This document establishes a classification of fan efficiency for all jet fan types driven by motors with an electrical input power range from 5,5 kW to 155 kW (and this is likely to be in the size range 500 mm to 1600 mm diameter with motors rated between 5,5 kW and 150 kW from IEC 60034-30-1).
This document is not applicable to jet fans for use in enclosed car parks.
This document can be used by legislators or regulatory bodies for defining future energy saving targets.

This European Standard specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of kitchen fire suppression systems in buildings.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned, food is stored and food waste areas.
This European Standard is applicable to fire suppression systems except those used in domestic kitchens or industrial food processing facilities.
Unless otherwise specified, the requirements of this standard should be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative local national regulations on installation, appliance requirements and inspection, maintenance and operation.

This document specifies the laboratory test methods and test requirements for the testing of aerodynamic, thermal, acoustic and electrical performance characteristics of ducted mechanical supply and exhaust residential ventilation units.
NOTE   Such units are referred to as bidirectional ventilation units in EN 13142:2021.
This document is applicable to unit that contain at least, within one or more casing:
-   fans for mechanical supply and exhaust;
-   air filters;
-   air-to-air heat exchanger and/or air-to-air heat pump for air heat recovery;
-   control system.
Such unit can be provided in more than one assembly, the separate assemblies of which are designed to be used together.
Examples of different possible arrangements of heat recovery, heat exchangers and/or heat pumps are described in Annex A.
This document covers ventilation units with continuous mass flows for each setting point.
This document does not deal with non-ducted units that are treated in prEN 13141-8:2021.
This document does not cover ventilation systems that may also provide water space heating and hot water that are treated in EN 16573.
This document does not cover units including combustion engine driven compression heat pumps and absorption heat pumps.
Electrical safety requirements are given in EN 60335-2-40 and EN 60335-2-80.

This document specifies aerodynamic, acoustic and electrical power performance test methods for unidirectional ventilation units used in residential ventilation systems.
This document is applicable to ventilation units:
-   installed on a wall or in a window without any duct, A category;
-   installed in the upstream of a duct, B category;
-   installed in the downstream of a duct, C category;
-   installed in a duct, or with duct connection upstream and downstream, D category;
-   with one or several inlets/outlets;
-   installed in a system with a heat pump for domestic hot water or water for cooling or heating;
-   which can be used for supply or exhaust.
This document does not apply to:
-   fan assisted cowls which are tested according to EN 13141-5;
-   mechanical supply and exhaust units which are tested according to EN 13141-7:2021 or EN 13141 8:2021.

This document specifies and classifies the component/product performance characteristics, which may be necessary for the design, rating and dimensioning, placing on the market of residential ventilation products and systems to provide the predetermined performance, comfort conditions of temperature, air velocity, humidity, hygiene and sound in the occupied zone.
It defines those performance characteristics (mandatory or optional) which shall be determined, measured and presented according to relevant test methods. It provides a classification scheme, which leads to a full definition of product properties based on test methods described in various EN Standards, and gives an overview of the test standards. Distinction between mandatory and optional requirement is left to each European and national regulations.
The codification part in Annex B and the classification part in Clause 8 apply to the following products:
-   unidirectional mechanical supply and exhaust residential ventilation units according to EN 13141-4:2021, EN 13141-6:2014 and EN 13141-11;
-   ducted mechanical bidirectional residential ventilation units according to EN 13141-7:2021;
-   non-ducted mechanical bidirectional residential ventilation units according to prEN 13141 8:2020.
This document does not apply to other products such as filters, fire dampers, ducts, control devices and sound attenuators, which may also be incorporated in residential ventilation.
This European Standard specifies in Annex ZA and Annex ZB the requirements of EU 1253/2014 and EU 1254/2014 for residential ventilation units below 1 000 m3/h air volume flow.
This European Standard does not cover requirements raised by European Directives (e.g. low voltage directive, EMC directive) and other requirements such as corrosion, reaction to fire and snow penetration.

This European Standard specifies requirements for the design, construction and operation of kitchen ventilation ceilings, including technical safety, ergonomic and hygienic features.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned and food is stored.
This European Standard is applicable to kitchen ventilation ceilings except those used in domestic kitchens.
A method of verification of each requirement is also specified.
Unless otherwise specified, the requirements of this standard need to be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative local national regulations on installation, appliance requirements and inspection, maintenance and operation.

This document specifies methods for measuring:
-   the aerodynamic characteristics of cowls, fan assisted cowls and roof outlets;
-   the electrical and acoustic characteristics of fan assisted cowls.
This document is applicable to cowls, assisted cowls and roof outlets used in natural, hybrid or mechanical ventilation and that are meant to be fitted onto ducts which project above the roof surface.
This document does not apply to:
-   assisted cowls assisted by a device other than a fan (e.g. injection assisted cowls);
-   roof exhaust fans (see EN 13141-4).

This document specifies requirements covering the design, construction, installation and operation of aerosol separators to be used in ventilation systems, including technical safety, ergonomic and hygienic features.
This document is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned and where food is stored and food waste areas.
This document is applicable to aerosol separator except for those used in domestic kitchens.
A method of verification of each requirement is also specified.
Unless otherwise specified, it is expected that the requirements of this standard will be checked by way of inspection and/or measurement.
NOTE Additional or alternative national regulations on installation, appliance requirements and inspection, maintenance and operation could exit.

This document specifies requirements and testing for rating and performance of Non Residential Ventilation Units, NRVU’s, specifically Air Handling Units (AHU’s). It specifies requirements, classifications and testing of components and sections of air handling units.
This document applies to tests in a laboratory and in situ. This document is applicable both for mass produced air handling units and tailor-made Air Handling Units.
This document applies to AHU and individual sections of AHU with the designed air flow > 250 m3 · h−1. This document applies to UVU's with additional air treatment components in addition to filtration.
This standard does not include:
-   residential unidirectional and bidirectional ventilation units;
-   nonresidential unidirectional ventilation units which consist of only a casing, a fan with or without filter.
NOTE 1   Residential ventilation units are covered by EN 13142.
NOTE 2   Nonresidential unidirectional ventilation units which consists only casing, fan with or without filter are covered by EN 17291.

This document establishes a system for the classification of fan efficiency for all fan types driven by motors of nominal rating 0,125 kW and above. It applies to driven fans only, but not to the system (finished original equipment manufacturer's product, for example box fans and roof fans or ventilation system) in which they might be installed. This document describes a number of different procedures to classify the efficiency of a fan or to apply a minimum efficiency limit (MEL). Those procedures are described in:
—     ISO 12759-3;
—     this document (ISO 12759-4);
—     ISO 12759-5;
—     ISO 12759-6.
There is no method described to compare these classifications and MEL's.

This document specifies requirements for indoor environmental parameters for thermal environment, indoor air quality, lighting and acoustics and specifies how to establish these parameters for building system design and energy performance calculations.
This European Standard includes design criteria for the local thermal discomfort factors, draught, radiant temperature asymmetry, vertical air temperature differences and floor surface temperature.
This European Standard is applicable where the criteria for indoor environment are set by human occupancy and where the production or process does not have a major impact on indoor environment.
This European Standard also specifies occupancy schedules to be used in standard energy calculations and how different categories of criteria for the indoor environment can be used.
The criteria in this European Standard can also be used in national calculation methods. This standard sets criteria for the indoor environment based on existing standards and reports listed under normative references or in the bibliography.
This European Standard does not specify design methods, but gives input parameters to the design of building envelope, heating, cooling, ventilation and lighting.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1.
NOTE 1   In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

This document specifies checks and measurement methods in order to verify the fitness for purpose of installed ventilation systems in dwellings. It can be applied to commissioning of new systems and performance testing of existing systems. It provides choice between simple test methods, when sufficient, and extensive measurements, when necessary.
Considering that this document has been developed for large scale application and considering the practical conditions of field measurements, no correction regarding ambient conditions (temperature and barometric pressure) is applied to functional measurements.
This document deals with items d), e), f), and g) of the following list giving the different stages of the design, installation, checking and measuring of a ventilation system:
a)   design and dimensioning of residential system;
b)   installation of system;
c)   balancing and adjustment of system;
d)   pre-checks on system;
e)   functional checks on system;
f)   functional measurements on system;
g)   special measurements on system if required.
This document applies to ventilation systems (mechanical, hybrid, natural) comprising any of the following elements:
- air terminal devices (supply, extract, intake and exhaust);
- air transfer devices (externally mounted, internally mounted);
- controls;
- ducts;
- fans;
- filters;
- heat recovery;
- heating/cooling of supply air;
- recirculation air;
- cooker hood;
- cowls;
- dampers;
- sound reduction devices.
In case of multi-functional units, the checking and measuring only apply to the ventilation part. Therefore, this document does not apply to:
- heating systems and their control;
- refrigerating systems and their control;
- electrical power supply systems.
It does not cover the following points:
- airtightness of the building envelope; the whole dwelling and the individual room ventilation rates can be influenced by air infiltration through the building envelope (see EN ISO 9972);
- effect of the ventilation system on indoor air speed within the occupied zone (see for example EN 15726).

This document specifies laboratory methods for testing externally and internally mounted air transfer devices operating under pressure differences.
This document applies to air transfer devices of the following types:
- air transfer devices with fixed opening(s);
- air transfer devices with manually adjustable opening(s);
- air transfer devices with pressure difference controlled opening(s);
- window openings specifically designed to act as an air transfer device.
This document describes tests intended to characterize the following:
- flow rate/pressure;
- equivalent area
- reverse flow ability;
- air tightness when closed;
- free area;
- air diffusion in the occupied zone;
- sound insulation;
- water tightness.
This document does not apply to evaluation of:
- air filtration;
- condensation risk;
- noise production.

This document defines the test methods and performance characteristics for rigid or semi-rigid non-metallic ductwork which are used for ventilation and air conditioning of buildings.
This document does not include flexible ducts such as those made of textiles, non-metallic spiral ductwork or others, which are handled in EN 13180 or ductwork made from insulation duct board, which is handled in EN 13403. Requirements for the air tightness of the ventilation system for non-residential buildings are given in EN 16798 3. For residential buildings, it is essential to apply national rules.
This document specifies methods to test rigid or semi-rigid non-metallic ductwork under laboratory conditions. On-site tests are excluded. The test methods and performance characteristics are valid for ventilation ducts with circular, rectangular or other cross sections.

This document deals with the indoor environmental parameters for thermal environment, indoor air quality, lighting and acoustic. The document explains how to use EN 16798-1 for specifying indoor environmental input parameters for building system design and energy performance calculations. The document specifies methods for long term evaluation of the indoor environment obtained as a result of calculations or measurements. The document specifies criteria for measurements which can be used if required to measure compliance by inspection. The Document identifies parameters to be used by monitoring and displaying the indoor environment in existing buildings. This document is applicable where the criteria for indoor environment are set by human occupancy and where the production or process does not have a major impact on indoor environment. The document explains how different categories of criteria for the indoor environment can be used.

This document specifies methods for measuring the main performance characteristics of range hoods for residential use. It applies to air extraction range hoods without fan.
This document does not specify:
-   values for performance characteristics;
-   safety requirements in relation with the use of methyl-ethyl ketone (MEK).
For air extraction range hoods with fan see IEC 61591

This document gives guidelines to correct the measured air flow rate when measuring conditions are different from standard conditions.
It applies to a power-law formula giving the air flow rate as a function of a pressure difference with an air flow rate coefficient, C, varying with temperature and pressure.
This document applies to:
-   passive elements of air distribution systems with a cross-section area that does not depend on pressure;
-   volume flow rate (and not mass flow rate).
This document is applicable to (but not limited to):
- EN 1507, Ventilation for buildings - Sheet metal air ducts with rectangular section - Requirements for strength and leakage;
- EN 1751, Ventilation for buildings - Air terminal devices - Aerodynamic testing of damper and valves;
- EN 12237, Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts;
- EN 13141 1, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 1: Externally and internally mounted air transfer devices;
- EN 13141 2, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices;
- EN 13141 9, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 9: externally mounted humidity controlled air transfer device;
- EN 13141 10, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 10: humidity controlled extract air terminal device;
- EN 15727, Ventilation for buildings - Ducts and ductwork components, leakage classification and testing.
This document does not apply to:
-   fans;
-   air terminal devices with automatically controlled openings (variable openings).

ISO 5801:2017 specifies procedures for the determination of the performance of fans of all types except those designed solely for air circulation, e.g. ceiling fans and table fans. Testing of jet fans is described in ISO 13350.
ISO 5801:2017 provides estimates of uncertainty of measurement and rules for the conversion, within specified limits, of test results for changes in speed, gas handled and, in the case of model tests, size are given.

This Technical Specification sets out the framework and structure for the standard related to ventilation in hospitals. It gives the requirements for the drafting of the parts of the standard, including preliminary terms and definitions.
The standard for ventilation in hospitals is intended for all healthcare premises where healthcare services are delivered. It is applicable for healthcare services located in a hospital, clinic or other premises. This includes general and specific risk areas, within healthcare and provides defined levels of air quality/cleanliness for classification of these areas. The standard addresses the minimum requirements for ventilation systems. It specifies the design, installation, operation, qualification process and maintenance of the ventilation systems.
The standard describes the following hygienic issues related to the ventilation system:
a)   air quality (e.g. cleanliness levels, temperature, humidity, air quantity);
b)   the protection of patients, staff and visitors against harmful agents;
c)   reducing the growth of microorganisms (e.g. clean-ability, accessibility, wet surfaces, accumulation of particles);
d)   control of the airflow direction (e.g. tightness of systems and constructions, pressure difference).
The standard describes a structured approaches for all phases from design up to and including maintenance and requalification and gives minimum requirements for the ventilation systems:
a)   minimum user requirement specification (URS);
b)   functional design requirements (FD);
c)   requirements for components in the detailed design (DD).
This standard is intended for healthcare ventilation system project managers, designers, construction and commissioning engineers, estates managers and operations/facilities managers.

This European Standard covers energy performance calculation of mechanical ventilation systems with integrated heating/cooling generation, including domestic hot water production, using a monthly or seasonal calculation interval or a bin method. It takes into account the generation (air handling unit) and distribution (duct system) parts. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in the M5-5 standard. It does not include humidification and dehumidification. This method is focussed on small, packaged ventilation systems, typically used in residential buildings, although the application is not restricted on the basis of building or space use type.
A calculation method for mechanical ventilation and air conditioning systems, including humidification and dehumidification, using an hourly calculation interval or a bin method, is provided in a separate standard, EN 16798 5 1.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1.
NOTE 1   In CEN ISO/TR 52000 2, the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

This European Standard applies to the design, energy performance of buildings and implementation of ventilation, air conditioning and room conditioning systems for non-residential buildings subject to human occupancy, excluding applications like industrial processes. It focuses on the definitions of the various parameters that are relevant for such systems.
The guidance for design given in this European Standard and accompanying FprCEN/TR 16798-4 are mainly applicable to mechanical supply and/or exhaust ventilation systems. Natural ventilation systems or natural parts of hybrid ventilation systems are not covered by this European Standard. Reference is made to the Technical Report for informative guidance on the design of such systems.
Applications for residential ventilation are not dealt with in this European Standard. Performance of ventilation systems in residential buildings are dealt with in EN 15665 and CEN/TR 14788.
The classification uses different categories. For some values, examples are given and, for requirements, typical ranges with default values are presented. The default values given in this European Standard are not normative as such, and should be used where no other values are specified. Classification should always be appropriate to the type of building and its intended use, and the basis of the classification should be explained if the examples given in the European Standard are not to be used.
NOTE 1   Different standards may express the categories for the same parameters in a different way, and also the category symbols may be different.
Table 1 shows the relative position of this European Standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1 .
NOTE 2   In FprCEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 3   The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

This European Standard specifies general requirements, such as ergonomic aspects in relation to ventilation of the kitchen (temperature, air aspects, moisture, noise, etc.), including a method for calculating the airflows.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned and food is stored.
This European Standard is applicable to kitchen ventilation systems except those in domestic kitchens.
Unless otherwise specified, the requirements of this standard should be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative national regulations on installation, appliance requirements and inspection, maintenance, operation.

This European Standard specifies requirements for the design, construction and operation of installations designed for the treatment of aerosol in kitchens including technical safety, ergonomic and hygienic features.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned, food is stored and food waste areas.
This European Standard is applicable to ventilation systems except those used in domestic kitchens.
Unless otherwise specified, the requirements of this standard should be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative local national regulations concerning installation, inspection, maintenance and operation.

This European Standard specifies requirements for the design, construction and operation of the air duct in commercial kitchens, including technical safety, ergonomic and hygienic features.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned and food is stored and food waste areas.
This European Standard is applicable to kitchen ventilation systems except those used in domestic kitchens.
A method of verification of each requirement is also specified.
Unless otherwise specified, the requirements of this standard should be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative local national regulations on installation, appliance requirements and inspection, maintenance and operation.

This European Standard specifies a calculation method for the energy performance of storage systems used for ventilation systems. It takes into account the energy performance of storage systems using water from phase change material (PCM) to store cooling energy. This standard presents a general method applicable to the different technologies of water-based storage systems or PCM related controls systems. It does not cover the cooling emission, distribution and generation that are covered by EN 15316 2, EN 15316 3 and EN 16798-13 respectively.
The standard covers typically hourly time steps but can be adapted to different time steps accordingly with the scenarios used for energy use and energy delivered or to bin method.
A simplified method is provided for monthly or annual time step.
This standard does not cover:
-   the cooling emission, distribution and generation systems; or
-   sizing or inspection of such storage systems.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in prEN ISO 52000 1:2015.
NOTE 1   In prCEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.
Table 1 - Position of this standard (in casu M4-7) within the EPB set of standards
...

This European Standard covers the calculation of the operational parameters and the energy consumption of cooling generation systems. The cooling generation consists of:
-   cooling generators like compression and absorption chillers;
-   other (generic) generator types such as ground or surface water or direct use of ground heat from boreholes; and
-   different types of heat rejection (dry, wet, hybrid with outdoor air, other sink types).
The methods cover:
-   the possibility of heat recovery of heat to be rejected for the use of heating and/or domestic hot water production, through the use of an interface to the M3-1 standard; and
-   a multi generator calculation.
The document does not cover the cooling emission, distribution and storage systems, which are covered by the Module M4-5, M4-6 and M4-7 standards, respectively. It is directly connected to the general part of the cooling systems, the M4-1 standard.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in prEN ISO 52000 1:2015.
NOTE 1   In FprCEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying Technical Reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.
Table 1 - Position of this standard (in casu M4–8) within the modular structure of the set of EPB standards
...

This European Standard covers the energy performance calculation of complete cooling systems. It gives a calculation method that defines how to collect the cooling energy requirements from the thermal zones and from the air handling units connected to a distribution system, and how to aggregate multiple distribution systems to an overall system energy requirement. It incorporates the calculation of the emission and distribution losses and auxiliary energy. The required cooling energy to be extracted by the cooling generation system is calculated, and the cooling energy storage is considered. It gives a method on how to dispatch the cooling energy provided by the cooling generation to different distribution systems, and possible priorities are considered.
This European Standard defines energy performance indicators for cooling systems.
Table 1 shows the relative position of this standard within the EPB package of standards in the context of the modular structure as set out in prEN ISO 52000-1.
NOTE 1   In prCEN ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

This European Standard describes the methods to calculate the ventilation air flow rates for buildings
to be used for energy calculations evaluation, heating and cooling loads.
This European Standard applies to buildings with:
-   Mechanical ventilation systems (mechanical exhaust, mechanical supply or balanced system);
-   Passive duct ventilation systems for residential and low-rise non-residential buildings;
-   Combustion appliances;
-   Windows opening by manual operation;
-   Kitchens where cooking is for immediate use (including restaurants)
This European Standard is applicable to hybrid systems combining mechanical and passive duct ventilation systems in residential and low-rise non-residential buildings.
This European Standard applies to buildings smaller than 100 m and rooms where vertical air temperature difference is smaller than 15 K.
The results provided by the standard are:
   the air flow rates entering or leaving a ventilation zone;
-   the air flow rates required to be distributed by the mechanical ventilation system, if present.
This European Standard is not applicable to:
-   Buildings with kitchens where cooking is not for immediate use
-   Buildings with automatic windows (or openings)
-   Buildings with industry process ventilation.
The definition of ventilation and airtightness requirements (as indoor air quality, heating and cooling, safety, fire protection…) is not covered by this standard.
The following information can be found in other standards and technical reports:
-   guidance to estimate pressure drops in ducts (CR 14378:2002)
Table 1 shows the relative position of this standard within the EN EPB package of standards.

This European Standard specifies the common methodology and the requirements for inspection of air conditioning systems in buildings for space cooling and/or heating and/or ventilation systems from an energy use standpoint. It can be used to fulfil the EPBD requirements (Energy Performance of Buildings Directive 2010/31/EU [9]) as well as in other contexts where such inspections are specified. The methodology specified in this standard deals with indoor climate problems that can be due to the systems inspected.
This standard applies to both residential and non-residential buildings equipped with:
-   air conditioning system(s) without mechanical ventilation; or
-   air conditioning system(s) with mechanical ventilation; or
-   natural and mechanical ventilation system(s).
This standard applies to:
-   fixed systems;
-   accessible parts that contribute to the cooling and mechanical ventilation services.
This standard is also applicable to some systems for which the Directive does not require inspection, such as:
-   fixed systems of less than 12 kW output;
-   ventilation-only systems.
The inspection of systems given in this standard is applicable to:
-   all types of comfort cooling and air conditioning systems. This includes air conditioning systems of an effective rated output of less than 12 kW not covered by Directive 2010/31/EU;
-   all types of ventilation systems that is to say mechanical, natural, hybrid (including mechanical and natural ventilation). Parts of this standard are also applicable to check ventilation requirements when there is no ventilation system.
The inspection of systems includes but is not limited to the following components:
-   reverse-cycle operation of air-conditioning equipment;
-   associated water and air distribution and exhaust systems that form a necessary part of the system;
-   controls that are intended to regulate the use of associated water and air distribution and exhaust systems.
Table 1 shows the relative position of this standard within the offset of EPB standards in the context of the modular structure as set out in EN ISO 52000 1:2017.
NOTE 1   In CEN ISO/TR 52000 2:2017 [7] the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2, Table A.1 and Table B.1.
This standard is not applicable to:
-   qualification of the persons or organization in charge of inspections;
-   frequency of the mandatory inspection (defined at national level);
-   components supporting the heating function (specified in EN 15378-1:2017 [8] and the accompanying technical report CEN/TR 15378-2:2017 [8] covering the inspection of heating-only systems using boilers).
The following information can be found in other standards or technical reports:
-   guidance regarding features affecting the frequency and duration of inspection are given in CEN/TR 16798-18:2017;
-   procedures and methods for the inspection of boilers and heating systems are given in prEN 15378 (all parts) [8].
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1:2017.

This European Standard covers the energy performance calculation of mechanical ventilation and air conditioning systems, including humidification and dehumidification. It takes into account the generation (air handling unit) and distribution (duct system) parts. It includes a simplified calculation of adiabatic cooling systems. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in EN 16798-7. It does not include the calculation of heating/cooling generation. This method is focussed on large customized ventilation and air conditioning systems, typically used in commercial buildings, although the application is not restricted on the basis of building or space use type.
A calculation method for ventilation systems with integrated heating/cooling generation, including domestic hot water generation, using a monthly or seasonal calculation interval or a bin method, is provided in a separate standard, EN 16798-5-2. This method does not include humidification and dehumidification or adiabatic cooling.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1.
NOTE 1   In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2   The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

This European Standard specifies the laboratory test methods and test requirements for aerodynamic, energy rating and acoustic performance, of multifunctional balanced units intended for use in a single dwelling.
In the case of units consisting of several parts, this standard applies only to those designed and supplied as a complete package with the mount instructions.
It covers units that contain at least, within one or more casing:
-   supply and exhaust air fans;
-   air filters
-   common control system;
and one or more of the additional components:
-   air to water heat pump;
-   air to air heat pump;
-   air-to-air heat exchanger.
Units including only an air to air heat exchanger and/or an exhaust air to supply air heat pump are covered by EN 13141 7.
A non-exhaustive list of possible configurations of multifunctional units covered by this standard is given in Clause 5.
The standard does not cover the thermal aspects of humidity transfer in the air-to-air heat exchanger.
This standard does not deal with non-ducted units on supply and extract air side.
This standard does not deal with collective units (centralized or semi-centralized systems)
These multifunctional balanced units can be connected to ground heat exchanger for air preheating, solar collector or other heating systems. This standard does not cover the testing with these additional components.
This standard does not cover units including combustion engine driven compression heat pumps and sorption heat pump.

This Technical Report refers to the standard EN 16798-15.
It contains information to support the correct understanding, use and national adaptation of this standard.

This Technical Report refers to standards EN 16798 5 1 and EN 16798 5 2.
It contains information to support the correct understanding and use of these standards.
This Technical Report does not contain any normative provision.

This Technical Report refers to the standard EN 16798-13.
It contains information to support the correct understanding and use of this standard.

This Technical Report refers to the standard FprEN 16798-9.
It contains information to support the correct understanding, use and national adaptation this standard.

This Technical Report refers to standard EN 16798-17:2017, module M4-11, M5-11, M6-11 and M7-11.
It contains information to support the correct understanding and use of this standard.
This Technical Report does not contain any normative provision.
Information regarding features affecting the frequency and duration of inspection is included in 5.2.

This Technical Report refers to the standard EN 16798-7.
It contains information to support the correct understanding and use of this standard.

This Technical Report refers to EN 16798-3.
It contains information to support the correct understanding and use of EN 16798-3.
This Technical Report does not contain any normative provision.
This Technical Report applies to the design and implementation of ventilation, air conditioning and room conditioning systems for non-residential buildings subject to human occupancy, excluding applications like industrial processes. It focuses on the definitions of the various parameters, which are relevant for such systems.
The guidance for design given in this standard and its annexes are mainly applicable to mechanical supply and exhaust ventilation systems, and the mechanical part of hybrid ventilation systems. Furthermore general design principles of natural ventilation systems are introduced in Annex D.
Applications for residential ventilation are not dealt with in this technical report. Performance of ventilation systems in residential buildings are dealt with in CEN/TR 14788.
The classification uses different categories. For some values, examples are given and, for requirements, typical ranges with default values are presented. The default values given in this standard are not normative as such, and should be used where no other values are specified. Classification should always be appropriate to the type of building and its intended use, and the basis of the classification should be explained if the examples given in the standard are not to be used.
NOTE   Different standards might express the categories for the same parameters in a different way, and the category symbols may be different.

This European Standard specifies the requirements covering the construction and operation of air inlets and outlets components including technical safety, ergonomic and hygienic features.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned, food is stored.
This European Standard is applicable to ventilation systems except those used in domestic kitchens.
A method of verification of each requirement is also specified.
Unless otherwise specified, the requirements of this standard need to be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative national regulations on installation, appliance requirements and inspection, maintenance and operation.

This European Standard specifies requirements for the design, construction and operation of kitchen ventilation hoods, including technical safety, ergonomic and hygienic features.
This European Standard is applicable to ventilation systems in commercial kitchens, associated areas and other installations processing foodstuffs intended for commercial use. Kitchens and associated areas are special rooms in which meals are prepared, where tableware and equipment is washed, cleaned, food is stored and food waste areas.
This European Standard is applicable to ventilation hoods except those used in domestic kitchens.
A method of verification of each requirement is also specified. Unless otherwise specified, the requirements of this standard need to be checked by way of inspection and/or measurement.
NOTE   Please note the possible existence of additional or alternative local national regulations on installation, appliance requirements and inspection, maintenance and operation.

ISO 13350:2015 deals with the determination of those technical characteristics needed to describe all aspects of the performance of jet fans as defined in ISO 13349. It does not cover those fans designed for ducted applications, nor those designed solely for air circulation, e.g. ceiling fans and table fans.
The test procedures described in this International Standard relate to laboratory conditions. The measurement of performance under on-site conditions is not included.

2014-09-26: Draft received at ISO/CS for // vote (see ISO notification in dataservice on 2014-09-26).
MINOR Amendment - MINOR Amendment - MINOR Amendment

This European standard specifies aerodynamic, acoustic and electrical power performance test measurements for un-ducted / ducted continuous supply ventilation / supply air ventilation units in a single room or a single dwelling used in residential ventilation.
In general such units contain:
- fan;
- air filter;
- control system.
Units may also include:
- grille or air distribution device;
- heating device;
- solar or thermal collectors (water or air);
- electrical;
- hydronic;
- sound attenuators;
- bypass dampers;
- mixing devices.
Supplementary heating may also be provided by solar air collector air or ground source heat pumps etc., the performance of these supplementary components are not covered by this standard.

This European Standard specifies laboratory methods for measuring the aerodynamic and acoustic performance characteristics and energy consumption of assembled exhaust ventilation system packages for a single dwelling. If a component of the package is not physically linked to the others (e.g. air inlets), then it is assumed to have been tested according to the test method related to this component. An example of a typical exhaust package is given in Figure 2.
The object of this European Standard is to provide tested characteristics for a ventilation system package in worst case conditions. It is assumed that better values are achieved on site when the ventilation system package is installed in accordance with the manufacturer's instruction and within the limits of the test conditions given in this standard.
Safety requirements are given in EN 60335-2-80.