How the VA-RV / VA-RN works.
A wide, shallow box on the floor along the wall. Cool air glides low up to 20 m into the hall; in the adjustable VA-RV a damper turns warm air towards the floor.
Applications: printing works, ironing and laundry plants, foundries and textile cleaning (p. 4).
Krantz, Rectangular displacement outlet VA-RN / with adjustment device VA-RV, DS 4009 E 06.2012.
Smoke test
Airflow in the Krantz lab.
A real smoke test in the Krantz flow laboratory: this is how air leaves the VA-RV / VA-RN.
Technical data VA-RV / VA-RN
- Max. ΔT cooling
- max. −8 K supply – roomp. 5
- Volume flow
- up to 2,500 m³/(h·m)p. 5
Krantz, Rectangular displacement outlet VA-RN / with adjustment device VA-RV, DS 4009 E 06.2012.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Volume flow | up to 2,500 m³/(h·m); diagram approx. 505 – 2,520 m³/(h·m), depending on distance to workplace p. 5 |
| Max. ΔT cooling | max. −8 K supply – room p. 5 |
| Max. ΔT heating | max. +6 K (adjustable VA-RV only) p. 5 |
| Penetration depth / throw | cooling up to 20 m; heating (VA-RV) 10 – 15 m p. 2 |
| Example sound and pressure drop | example size 2, B 2 m, 1,980 m³/(h·m): 54 dB(A), 37 Pa p. 4 |
| Load factors | pollutant load factor 20 % and heat load factor 45 % (mixing ventilation 90 – 100 %); only 45 % of the volume flow required p. 2 |
Design
| Property | Value · Source |
|---|---|
| Sizes | height 765 (size 1) or 1,150 mm (size 2); width 1,000 / 1,500 / 2,000 / 2,500 mm; depth 350 mm; weight 38 – 112 kg p. 2 |
| Materials and finish | galvanised sheet steel, visible parts optionally powder-coated RAL; swirl elements of polycarbonate, mass-coloured approx. RAL 7037 dusty grey p. 5 |
| Connections | spigot on top (centre, left or right) with flange for standard angle flanges p. 2 |
| Options and versions | VA-RN not adjustable; VA-RV with damper, manual (lever) or Belimo NM24A-SR / Siemens GLB161.1E 0 – 10 V; special lengths on request p. 5 |
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