Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 4: Fans used in residential ventilation systems
This European Standard specifies aerodynamic, acoustic and electrical power performance test methods for fans used in residential ventilation. These methods primarily concern:- ventilation fans installed on a wall or in a window without any duct - ventilation fans installed in the downstream of a duct - ventilation fans installed in the upstream of a duct - ventilation fans installed in a duct - encased ventilation fans having several inlets.For acoustic performance testing one of the following methods is used:- in-duct method - reverberant room method - enveloping surface method.
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