BS 14134:2019 pdf download – Ventilation for buildings – Performance measurement and checks for residential ventilation systems
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).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1507, Ventilation for buildings – Sheet metal air ducts with rectangular section – Requirements for strength and leakage
EN 12237, Ventilation for buildings – Ductwork – Strength and leakage of circular sheet metal ducts EN 12792, Ventilation for buildings – Symbols, terminology and graphical symbols
EN ISO 16032, Acoustics – Measurement of sound pressure level from service equipment in buildings Engineering method (ISO 16032)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at
• ISO Online browsing platform: available at
observation of the operation of a system or devices, against a specification without resorting to specific measurements
[SOURCE: EN 12792:2003; definition 193]
verification of the documentation of a system or devices intended to be used during the check process
process of experimentally obtaining one or more quantity values that can reasonably be attributed to a quantity
[SOURCE: JCGM 200:2012; definition 2.1, modified – Notes have been removed.]
run-on timer
device which ensures that air flow through a ventilation system or an air terminal device (ATD) continues for a specific time period after a user operated control has been turned off
Note 1 to entry: Run-on-timers are commonly used to control extract fans which are activated by the room light switch in internal rooms.
maximum permissible measurement error
extreme value of measurement error, with respect to a known reference quantity value, permitted by specifications or regulations for a given measurement, measuring instrument, or measuring system [SOURCE: JCGM 200:2012; definition 4.26, modified – Notes have been removed.]
housing estate
group of homes and other buildings built together as a single development
Note 1 to entry: The exact form can vary from country to country. A housing estate is usually built by a single contractor, with only a few styles of houses or building design, so they tend to be uniform in appearance.
4 Symbols and abbreviations
For the purpose of this document, the symbols given in EN 12792 and the following (see Table 1) apply.BS 14134 pdf download.