#adVent-Axia#ad - Adjustable humidity sensor. Delay on timer 2 mins means fan doesn't switch on with light until 2 mins have elapsed. 90m3/h 25 litres per second. The fan will switch from trickle if selected to boost medium or high via the light switch or humidity sensor.
Constant trickle option. Extraction rate. 40dba at 3m on high speed. Dimensions: height 261mm x width 221mm x depth 107mm.
Ipx4 rated. Adjustable timer overrun. Mains voltage 230/240v ac 50Hz. Extremely low sound level during operation. 408db a at 3m at high speed, 25. 8 on trickle.
Has a choice of two boost/override motor speeds, medium 17 litres per second or high 25 litres per second, with an optional third speed for constant trickle ventilation 10 litres per second, selectable at installation. Extremely low sound level during operation. Please note that the 427479b model is simply an upgraded version of the previous 427479A version.