AER Active

Highest control accuracy
Energy efficient
Very short design

Unique and ingenious: LTG map control.

The VREactive volume flow controllers regulate a constant or variable volume flow in round air ducts of Comfort Air Technology systems independently of the upstream pressure.
A full barrier is also possible.
For dynamic (VRactive) and static (VRactive-s) measurement.
Actuation and control are electrical (with external power).
The housing has push-in ends with lip seals suitable for air ducts to DIN EN 1506 or DIN EN 13180.

  • Highest control accuracy of all known controllers in the low air velocity range due to differential pressure amplification
  • Energy-efficient – minimal pressure loss due to small differential pressure element
  • Very short design, insensitive to inflow, simple integration
  • Optimized construction with particularly high airtightness
  • Also with static differential pressure measurement – suitable for laboratories and hospitals

Ready for a breath of fresh air? Contact our comfort air experts now and breathe a sigh of relief - in the truest sense of the word!

Technical data

Technical Data for L_pa= 35 dB(A)

Volume flow range 27 - approx. 4500 m³/h Control ratio 10 : 1 Differential pressure range up to 1000 Pa Casing leakage according to DIN EN 1751 Class A standard Casing leakage according to DIN EN 1751 Class C (optional) Airtight shut-off to DIN EN 1751 Class 4 (DN 100 + 125: Class 3) Control deviation max. 5% from V

Sizes [mm] Ø 100 - 400, installation length [mm] 135 - 420


Messprinzip coated (optional) dynamisch (für nicht belastete Luft) Static (for polluted air) (optional) Stainless steel (optional) Handeinstellgerät (optional) Insulating shell (optional) Analog / digital control (bus) analog Housing version MP (optional) Galvanized steel BACnet Silencer SDE (optional) Modbus


Ordering help for variable volume flow controllers
FILE 217.52 kB
Overview brochure Product overview air distribution German
PDF 2.1 MB
Brief information on variable volumetric flow controllers VRactive German
PDF 860.37 kB
Variable volumetric flow controller design tool VREactive/VRFactive German
XLS 4.53 MB
Technical brochure variable volumetric flow controller VREactive German
PDF 1.43 MB
Specification text variable volumetric flow controller VREactive German
DOC 45.75 kB
Operating instructions variable volumetric flow controller VRactive German
PDF 2.04 MB
Presentation Volume flow controller VRactive German
PDF 431.08 kB
Operating instructions 4-stage switch for domestic ventilation
PDF 597.96 kB
Technical article Energy savings in ventilation and air conditioning systems through volume flow controllers German
PDF 735.95 kB
Technical article Savings potential volume flow controller German
PDF 313.38 kB
Planning aid for volume flow control
PDF 367.24 kB
Newsletter NFC "Assistant App"
PDF 393.18 kB