How the Q-ST works.
The seat pedestal is the outlet. A perforated cylinder below each seat lets fresh air flow across the floor as a thin layer, which rises along the body to the breathing zone.
Applications: auditoria, conference halls, theatres and other rooms with fixed seating (p. 2). Krantz references in the Netherlands: De Munt, Weert; De IJsbreker, Amsterdam (old Peek site)
Krantz, Seat displacement outlet Q-ST, DS 4028 E 05.2010.
Technical data Q-ST
- Discharge height
- discharge heightp. 4
- Max. ΔT cooling
- supply – room down to −4 Kp. 4
- Volume flow
- max. 36 / 40 / 50 m³/hp. 4
Krantz, Seat displacement outlet Q-ST, DS 4028 E 05.2010.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Volume flow | max. 36 / 40 / 50 m³/h [35 / 40 / 50 m³/h] for DN 100 / 127 / 190 p. 4 |
| Discharge velocity | 0.16 m/s p. 4 |
| Max. ΔT cooling | supply – room down to −4 K; supply – extract down to −12 K; supply temperature 20 °C p. 4 |
| Discharge height | discharge height (perforated section) 200 mm p. 4 |
| Example sound and pressure drop | very low: LWA ≤ 16 dB(A) ref. 10⁻¹² W; pressure drop in diagram up to approx. 28 Pa p. 4 |
| Comfort | voorbeeld DN 127, 40 m³/h, hart-op-hart 550 mm: 0.06 – 0.25 m/s bij voeten/benen; boven 500 mm ≤ 0.1 m/s; gradiënt tot 2 K/m p. 3 |
Design
| Property | Value · Source |
|---|---|
| Sizes | DN 100 / 127 / 190 p. 2 |
| Materials and finish | seat leg sheet steel, air distributor galvanised sheet steel; visible parts powder-coated RAL (standard 9005 matt) p. 4 |
| Connections | from pressure plenum via fixed restrictor; connection flange (F), flange/screw connection according to floor type (timber or concrete) p. 2 |
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