Vent-Axia controllers offer demand-controlled ventilation

Vent-Axia, ventilation, control

Vent-Axia’s eDemand controllers can be added to existing speed-controllable fans to offer demand-controlled ventilation and to improve the performance and operating efficiency of its own range of fans. They are available for single-phase and 3-phase fans and can be controlled by signals from CO2, temperature or constant-pressure sensors.

These speed controllers eliminate issues associated with increased electro-magnetic motor noise when applying speed control, and screened cables are not required. Fans can operate in parallel with no risk of motor damage.

Vent-Axia also offers eDemand auto changeover panels to control a wide range of standard speed-controllable twin fans.

For more information on this story, click here:  June 2011, 172
Related links:
Related articles:



modbs tv logo

Grenfell is the building industry's Piper Alpha says CIBSE

The recent passage of the Building Safety Act is a welcome recognition of the fact that making safe buildings is a highly skilled operation says the Chartered Institution of Building Services Engineers, endorsing the need for more effective regulation and a profound change in culture.

Underlying project-starts uptick indicates gradual recovery, Glenigan data suggests

  • 13% rise in detailed planning approvals against the preceding three months
  • 18% decline in main contract awards against the previous year
  • 9% increase in underlying starts during the three months to May

Glenigan has released the June 2022 edition of its Construction Review.