Definitions
Article 2
For the purposes of this Regulation the following definitions shall apply: (1) ‘ventilation unit’ (VU) means an electricity driven appliance equipped with at least one impeller, one motor and a casing and intended to replace utilised air by outdoor air in a building or a part of a building; (2) ‘residential ventilation unit’ (RVU) means a ventilation unit where: (a) the maximum flow rate does not exceed 250 m 3 /h; (b) the maximum flow rate is between 250 and 1 000 m 3 /h, and the manufacturer declares its intended use as being exclusively for a residential ventilation application; (3) ‘maximum flow rate’ is the declared maximum air volume flow rate of a ventilation unit that can be achieved with integrated or separately co-supplied controls at standard air conditions (20 °C) and 101 325 Pa, where the unit is installed complete (e.g. including clean filters) and according to the manufacturer's instructions, for ducted RVUs the maximum flow is related to the air flow at 100 Pa of external static pressure difference, and for non-ducted RVUs to the air flow at the lowest achievable total pressure difference to be chosen from a set of values of 10 (minimum)-20-50-100-150-200-250 Pa, whichever is equal or just below the measured pressure difference value; (4) ‘unidirectional ventilation unit’ (UVU) means a ventilation unit producing an air flow in one direction only, either from indoors to outdoors (exhaust) or from outdoors to indoors (supply), where the mechanically produced air flow is balanced by natural air supply or exhaust; (5) ‘bidirectional ventilation unit’ (BVU) means a ventilation unit producing an air flow between indoors and outdoors and which is equipped with both exhaust and supply fans; (6) ‘equivalent ventilation unit model’ means a ventilation unit with the same technical characteristics according to the applicable product information requirements, but placed on the market as a different ventilation unit model by the same manufacturer, authorised representative or importer. For the purposes of Annexes II to IX, additional definitions are set out in Annex I.