BS EN 14134:2019

What is BS EN 14134 - Ventilation systems testing about?

BS EN 14134 discusses ventilation for buildings. BS EN 14134 specifies checks and measurement methods to verify the fitness for the purpose of installed ventilation systems in dwellings. It can be applied to the commissioning of new systems and performance testing of existing systems. It provides a choice between simple test methods, when sufficient, and extensive measurements, when necessary.

BS EN 14134 deals with functional checks on the system, functional measurements on the system, and special measurements on the system if required. BS EN 14134 has been developed for large scale application and considering the practical conditions of field measurements, no correction regarding ambient conditions is applied to functional measurements.

Note 1: BS EN 14134 is not applicable to heating systems, refrigerating systems their control and electrical power supply systems.

Note 2: BS EN 14134 does not cover the airtightness of the building envelope; the whole dwelling and the individual room ventilation rates can be influenced by air infiltration through the building envelope and the effect of the ventilation system on indoor airspeed within the occupied zone.

Who is BS EN 14134 - Ventilation systems testing for?

BS EN 14134 on ventilation for buildings – Performance measurement and checks for residential ventilation systems is applicable to:

• Architecture
• Civil Engineer
• Window Manufacturer
• Ventilation and A/C manufacturer

Why should you use BS EN 14134 – Ventilation systems testing?

BS EN 14134 elaborates on the different stages of the design, installation, checking and measuring of a ventilation system with reference to:

• Pre-checks on system
• Functional checks on system
• Functional measurements on system
• Special measurements on system

BS EN 14134 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

Using BS EN 14134 guidelines, you can verify the fitness for the purpose of installed ventilation systems in dwellings.

What’s changed since the last update?

BS EN 14134:2019 supersedes BS EN 14134:2004, which is withdrawn. BS EN 14134:2019 includes some technical changes with respect to BS EN 14134:2004.

These include:

• Modification of methods to delete steps order
• Modification of sampling method to be applicable to all checks and measurements defined in this and sampling method to explain the different levels
• Modification of pre-check and functional check methods to be more exhaustive and more detailed
• Additional pre-check for Ecodesign requirements, product labelling, equipment uncertainties
• Removal of requirement for global measurement uncertainties