Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 4: Aerodynamic, electrical power and acoustic performance of unidirectional ventilation units
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.
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