BS EN 13141-4:2021

This standard BS EN 13141-4:2021 Ventilation for buildings. Performance testing of components/products for residential ventilation is classified in these ICS categories:

• 91.140.30 Ventilation and air-conditioning systems
• 23.120 Ventilators. Fans. Air-conditioners

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:

1. installed on a wall or in a window without any duct, A category;

2. installed in the upstream of a duct, B category;

3. installed in the downstream of a duct, C category;

4. installed in a duct, or with duct connection upstream and downstream, D category;

5. with one or several inlets/outlets;

6. installed in a system with a heat pump for domestic hot water or water for cooling or heating;

7. which can be used for supply or exhaust.

This document does not apply to:

1. fan assisted cowls which are tested according to EN 13141?5 ;

2. mechanical supply and exhaust units which are tested according to EN 13141?7:2021 or prEN 13141?8:2021 .