
| | Placement flush with false ceiling or downstanding below the room ceiling, non-adjustable or adjustable. |

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Type Q-DN, non-adjustable Volume flow rate range: Discharge velocity: Sizes:
| | 47 - 140 l/s [170 - 500 m³/h] 0.15 – 0.45 m/s 625 mm x 625 mm (square) 625 mm x 1250 mm (rectangular)
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Type Q-DV, adjustable Volume flow rate range: Discharge velocity: Size: | | 94 - 140 l/s [340 - 500 m³/h] 0.30 – 0.45 m/s 625 mm x 625 mm (square)
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