DIN EN 13141-4:2018-09

This European Standard 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. In comparison to EN 13141-4:2011, the title and the scope are modified. These modifications are due to the new structure of EN 13141 series. 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 or EN 13141-8