How the WSD works.
A slim slot outlet in the corridor wall. After 1 – 2 m the flow becomes diffuse and glides as a layer across the floor towards the façade.
Applications: office and administration buildings, preferably with concrete core activation or chilled ceilings; at DR 20 % also shops, museums and restaurants (p. 2).
Krantz, Wall slot diffuser WSD, DS 4119 E 12.2013.
Smoke test
Airflow in the Krantz lab.
A real smoke test in the Krantz flow laboratory: this is how air leaves the WSD.
Technical data WSD
- Discharge height
- aanbevolen 2.4–3.5 mp. 2
- Max. ΔT cooling
- −8 Kp. 2
- Volume flow
- max. per metre: 1-row 120 m³/(h·m)p. 2
Krantz, Wall slot diffuser WSD, DS 4119 E 12.2013.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Volume flow | max. per metre: 1-row 120 m³/(h·m) at DR 15% and 39 [140] at DR 20%; 2-row 53 [190] and 240 m³/(h·m) respectively p. 2 |
| Max. ΔT cooling | −8 K (DR 15%) to −10 K (DR 20%) p. 2 |
| Max. ΔT heating | +6 K p. 2 |
| Discharge height | aanbevolen 2.4–3.5 m p. 2 |
| Penetration depth / throw | suitable for room depths > 4 m p. 2 |
| Example sound and pressure drop | restaurant example 2-row 1,050 mm: approx. 43 dB(A), 36 Pa; office example combined: 30 dB(A), supply 33 Pa / return 40 Pa p. 5 |
Design
| Property | Value · Source |
|---|---|
| Sizes | lengte 525 / 1 050 / 1 125 mm; voor wanddikte 100 mm; 2.6–8.9 kg p. 3 |
| Materials and finish | slot profile aluminium, powder-coated RAL 9010 or natural anodised; distribution elements polycarbonate black or white; plenum box galvanised steel p. 11 |
| Connections | ronde tuit achter; type Z in de wand, type H achter de wand; optionele klep bedienbaar vanuit ruimte p. 3 |
| Options and versions | supply, extract or combined; 1- or 2-row (3-row on request); acoustic lining class A2 (often no crosstalk attenuator required) p. 10 |
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