DucoGrille Close 105 - Night cooling
The DucoGrille Close 105 is a blade damper which, as a result of its high airflow rate, is perfect for use in ventilation applications of buildings. A llowing fresh air from the outside to directly enter a building through the building envelope. The ultimate guarantee of a healthy indoor climate.
Designed for wall mounted applications in supply mode, the DucoGrille Close 105 is fitted with a grille on both sides for aesthetic purposes. This blade damper is ideal when combined with a DucoGrille Solid series. Thanks to its high air flow rate the DucoGrille Close 105 is also suitable for adjustable extract. Blade dampers are motor controlled and can be connected to a Building Management System thus allowing for a fully-fledged ventilation strategy.
| Visual free area | 74 % |
| Physical free area | 74 % |
| K factor intake | 2,57 |
| K factor exhaust | 2,57 |
| Ce | 0,62 |
| Cd | 0,62 |
| Frame width | 105 mm |
| Blade pitch | 91 mm |
| Insulation value | U = < 1 W/m²K |
| Control | motorized |
| Operating temperature | -25 °C to +60°C |
| Attenuation value Rw (C;Ctr) |
Closed 21 (-2;-2) dB Open 3 (0;-1) dB |
| Airtightness | in accordance with the norm EN 12207 and EN 1026 |
| Water repellency | Class A (untill v=1,5m/s in fully opened position, in combination with a DucoGrille Solid 30Z as exterior louvre) in accordance with the norm EN 12208 and EN 1027. |