Technical Specifications — Energy Plus Filter Sets Energy Plus Filter Sets Description Vasco recommends that the filters of your ventilation unit be cleaned every 3 months and replaced every 6 months. They can be cleaned with a vacuum cleaner. The wired wall-mounted control unit will simply display a maintenance message when the filters need to be replaced: Replace the filters (supply and discharge air) with the official Vasco filter sets, which can be purchased from wholesale businesses. There is no need to reset the dirty filter warning, given that the message is displayed and triggered by the reading of the differential pressure switches in the ventilation unit. The message can be reset faster by briefly switching off the wired wall-mounted control unit. Technical Features On the Energy Plus type of ventilation units the filters can be accessed on the side of the unit. 2 separate filter covers need to be opened to respectively gain access to the supply and discharge filter. Ventilation Unit Type galvanised steel Filter: micro glass fibre