Silenzio Retro SR
Silenzio Retro
The Silenzio Retro SR has been developed specifically for listed buildings with a protected façade. This ventilator can be built into the façade invisibly or be fitted with a discreet rosette part.
The stated ventilation values of the Silenzio Retro ZR without Duco external louvre grille are measured without external louvre. Effective values depend on the outside part.
Technical features
| Watertightness in closed position | 600 Pa |
| Windtightness in closed position | 300 Pa |
| Standard control | Manual control |
| Ventilator height | 350 mm |
| Width | 350 mm |
| Depth | 107 mm |
| Length of the tube | Standard 300 mm. Longer version available as an option. |
| Diameter of the tube | 250 mm |
Acoustic values octave band values
| Type | Octave band value at 125 Hz (dB) | Octave band value at 250 Hz (dB) | Octave band value at 500 Hz (dB) | Octave band value at 1000 Hz (dB) | Octave band value at 2000 Hz (dB) |
|---|---|---|---|---|---|
| Silenzio Retro SR with DUCO exterior grille | 37,4 | 33,7 | 40,8 | 42,3 | 44,7 |
| Silenzio Retro SR without DUCO exterior grille | 37,4 | 33,7 | 40,8 | 42,3 | 44,7 |
Acoustic performance
| Type | Installation depth (mm) | Dn,e,W (C;Ctr) open position (dB) | Dn,e,W (C;Ctr) closed position (dB) | Dne,A open position (dB(A)) | Dne,Atr open position (dB(A)) | Rq,A open position |
|---|---|---|---|---|---|---|
| Silenzio Retro SR with DUCO exterior grille | 300 - 375 | 43 (-1;-3) | 64 (-3;-10) | 42 | 40 | 12,3 |
| Silenzio Retro SR without DUCO exterior grille | 300 - 375 | 43 (-1;-3) | 64 (-3;-10) | 42 | 40 | 12,3 |
Ventilation capacity wall damper
| Type | Qn - ventilation capacity per wall - roof ventilator [m3/h each at 2 Pa] (m3/h) | Airflow (Q) per unit [m3/h each at 10 Pa] (m3/h) |
|---|---|---|
| Silenzio Retro SR with DUCO exterior grille | 46,5 | 36,4 |
| Silenzio Retro SR without DUCO exterior grille | 54,7 | 36,4 |
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