How the SKS-4/3 works.
Open finned registers with a copper meander below the concrete soffit, cooling the room by radiation and convection, also when concealed above an open suspended ceiling.
Applications: offices; high cooling loads such as TV studios, technical rooms and industry; refurbishment thanks to the low installation height (p. 2).
Krantz, Static cooling ceiling system SKS-4/3, DS 4094 E 05.2007.
Technical data SKS-4/3
- Installation height
- ≥ 185 mmp. 3
Krantz, Static cooling ceiling system SKS-4/3, DS 4094 E 05.2007.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Cooling capacity | standard 175 W/m² cooling element (projected area), freely suspended without modular ceiling, to DIN 4715 p. 3 |
| Cooling capacity (table) | at 26 °C room / 16 – 18 °C water (9 K): 111–157 W/m² of element and 39–94 W/m² of ceiling area respectively, depending on free area and coverage 30–60% (Table A/B) p. 8 |
| Cooling capacity (table 7 K) | 85–120 W/m² of element and 30–72 W/m² of ceiling area respectively (Table C/D) p. 9 |
| Recommended limit | specific cooling capacity < 160 W/m² of element recommended for air velocities to DIN 1946 – 2 p. 9 |
| Heating | also suitable for heating, worthwhile with exposed installation or a modular ceiling with free area > 70%; no figure given p. 3 |
| Water temperatures | typical: flow 16 °C, return 18 °C; flow > 16 °C and water ΔT > 2 K recommended; min. water flow 70 l/h per element p. 8 |
| Water pressure drop | Δp = 1.81·10⁻⁵ · N(L+0.1) · V̇²; richtwaarde ≤ 20–30 kPa per element; rekenvoorbeeld 10.5 kPa p. 7 |
| Sound | no noise generation ('no noise') cited as a comfort advantage p. 9 |
Design
| Property | Value · Source |
|---|---|
| Sizes | nominal length 1000–4000 mm in steps of 100 mm; width 350–1475 mm in steps of 125 mm; height 85 mm; area per element max. 5 m² p. 3 |
| Installation height | ≥ 185 mm (min. 50 mm clear above and below the element) p. 3 |
| Materials and finish | koperen meander 12 x 0.5 mm (Cu-DHP), aluminium extrusie-lamellen, verzinkte Z-profielen; standaard zwart gepoedercoat/natlak (RAL 9005-achtig), andere RAL-kleuren mogelijk p. 3 |
| Connections | pipe ends Ø 12 mm for push-in, press or soldered connection; pipe spacing 125 mm p. 3 |
| Operating pressure and weight | 6 bar (max. 16 bar); approx. 7–9 kg/m² filled p. 3 |
| Ceiling type | open modular ceilings (metal: rectangular/square tile, panel, strip); acoustic mats on perforated tiles cannot be combined p. 9 |
| Overall height | 85 mm; installation height ≥ 185 mm p. 3 |
| System type | static cooling ceiling (radiation and convection), concealed or exposed, freely suspended or in an open modular ceiling p. 2 |
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