Air principle
From outlet to occupied zone.
At the outlet
The air leaves evenly across the whole perforated plate. (DS 4136 p. 2)
In the room
Then it spreads radially and horizontally. An air cushion stays below the plate, so entrained room air does not touch it and the ceiling soils far less. (DS 4136 p. 2)
Construction
An air distribution element above a perforated face plate, with a plenum box (standard or flat) and spigot. Optional damper, fleece covers and a frame for plasterboard. (DS 4136 p. 3–4)
Smoke test
Airflow in the Krantz lab.
A real smoke test in the Krantz flow laboratory: this is how air leaves the OC-Q.
Technical data OC-Q
- Room height
- 2.5 – 4.5 mp. 2
- Max. ΔT cooling / heating
- ±10 K up to 3 m room heightp. 2
- Volume flow
- 40 – 860 m³/hp. 3
Krantz Components, Opticlean OC-Q, DS 4136 10.2022.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Air distribution | mixing ventilation, radial horizontal, with an air cushion below the plate DS 4136 p. 2 |
| Volume flow | 40 – 860 m³/h (40 – 855 m³/h) p. 3 |
| Volume flow per size | 215: 40 – 110 · 270: 65 – 170 · 330: 100 – 250 · 400: 130 – 430 · 500: 180 – 580 · 600/625: 270 – 860 m³/h p. 3 |
| Max. ΔT cooling / heating | ±10 K up to 3 m room height; ±5 K up to 4.5 m p. 2 |
| Room height | 2.5 – 4.5 m p. 2 |
| Sound | example size 500 in an office, 400 m³/h per outlet at 2.7 m: < 36 dB(A), < 40 Pa; further in charts p. 7 – 9 |
| Penetration depth | not given as a figure |
Design
| Property | Value · Source |
|---|---|
| Sizes | 215 · 270 · 330 · 400 · 500 · 600 (grid and plasterboard) · 625 (grid only) p. 10 |
| Perforation | standard Rd 2820: hole 2.8 mm, pitch 5.5 mm p. 10 |
| Material | face, mounting frame, distribution element and box galvanised sheet steel; face powder-coated to RAL p. 10 |
| Connections | duct or 90° bend on top; plenum box K (with damper); flat box F p. 5 |
| Options | segment covers of acoustic fleece (3-way, 2-way symmetrical or asymmetrical); flow stabiliser (sizes 215 – 330); mounting frame for 12.5 mm plasterboard; lip seal, clamping profiles, internal insulation; also as extract outlet p. 11 |
Versions and sizes
Seven sizes, from 215 to tile size 625.
215 · 270 · 330 · 400 · 500 · 600 · 625 (DS 4136 p. 10)
Finish
face powder-coated to RAL; perforation Rd 2820 (p. 10)
In the ceiling
in place of a tile in a 600 or 625 grid ceiling, or in a plasterboard ceiling with mounting frame (p. 10–11)
Applications
Where it belongs.
Suspended ceilings, 600/625 grid or plasterboard. The worked example in the data sheet is an office building (DS 4136 p. 7).
When not: Above 4.5 m room height it is outside its range (DS 4136 p. 2). For a circular face, look at the OC-R (DS 4174e p. 2). If the room must warm up quickly, there is the OC-V with thermostatic element (DS 4202e p. 2–4).
Related in the collection
Same family, a different character.
| Type | What it is | Essence | Source |
|---|---|---|---|
| OC-R | Circular Opticlean | four sizes, 61 – 610 m³/h; ceiling height 2.5 – 4.5 m | DS 4174e p. 2–3 |
| OC-V | Opticlean with thermostatic control unit | horizontal when cooling, vertical when warming up; no power needed | DS 4202e p. 2–4 |
| RA-N | Radial swirl diffuser | twelve star-shaped vanes; 2.2 – 4.5 m | DS 4012 E p. 2–3, p. 12 |
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