Technical Booklet K Ventilation·Page 18·1.24
Air Flow Testing and Commissioning for Dwellings
All mechanical ventilation systems in dwellings should be commissioned and air flow rates tested and recorded where practicable, with manufacturer certification acceptable for systems with only on/off controls.
Where practicable and possible, all mechanical ventilation systems are to be commissioned and the dwelling air flow rates tested and results recorded. With some systems adjustment is not possible because the only controls are "on/off" switches, in such instances, e.g. stand alone extract fans, the manufacturer's certification should be adequate.
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