Vent-Axia Cleverly Combats CO2

Last year, Vent-Axia launched the innovative Centra extract fan, the first near silent dMEV (decentralised Mechanical Extract Ventilation) solution on the market. Now, the company has gone one better with an industry first, a new model which includes an integrated dynamic CO2 and humidity sensor, enabling Centra to automatically increase ventilation to meet demand. The unit’s energy saving Vent-Axia Lo-Carbon DC motors improve its efficiency and carbon reducing capabilities, providing up to 80% energy savings on the motor over traditional AC driven fans alone.

Vent-Axia’s Centra is a Lo-Carbon continuous running axial fan offering constant trickle ventilation and comprising a boost feature which can be utilised as necessary based on specific room requirements. With the introduction of an integral CO2 sensor, the fan will slowly increase in speed between the preset trickle and boost speeds in proportion to the ambient CO2 parts per million (ppm) in the room. This will be set at installation at either above 700ppm or above 1000ppm.

The fan also incorporates an intelligent dynamic humidity sensor which increases the speed slowly in proportion to the relative humidity between 70% and 90%RH. This slow rise effect reduces noise and ensures that the unit only ventilates on demand increasing the energy saving by an additional 30%. To prevent activation during the night or cold weather, the fan also monitors the ambient temperature and increases the 70%RH set point to take into consideration the air becoming denser as the temperature falls. This minimises the risk on nuisance night time running ensuring a good night sleep for occupiers.

Centra CO2 runs continuously providing a simple and effective form of ventilation and is fitted with 100mm spigots, common to traditional intermittent extract fans, to simplify the specification process.

Centra CO2 is part of the Vent-Axia Lo-Carbon™ collection of energy saving ventilation solutions. The aim of the Lo-Carbon initiative is to offer the latest low carbon ventilation technology in order to reduce building energy consumption and so carbon emissions.