This European Standard specifies the laboratory test methods and test requirements for the testing of aerodynamic, thermal and acoustic performance, and the electrical power of a un-ducted mechanical supply and exhaust ventilation unit used in a single room.
In general, such a unit contains:
-- supply and exhaust air fans;
-- air filters;
-- air to air heat exchanger for exhaust air heat recovery;
-- control system.
Such equipment can be provided in more than one assembly, the separate assemblies of which are designed to be used together.
This European Standard does not deal with ducted units or units with heat pumps.
Safety requirements are given in EN 60335-2-80.