How does the ventilation in my bedroom work?

Modified on Mon, 13 Nov, 2023 at 11:06 AM

The MVHR fan control is based on the room relative humidity detected by the multisensors.

The multisensor (bedroom/ensuite) with the highest relative humidity gets compared to the below parameters, depending which band it falls under the fan output speed will be set.

When the user is not in the space the room will go into standby mode which will set the MVHR fan to trickle mode (20%).

Standby :

Fan speed: 20% (Trickle Mode)

Normal :

RH 0% - 49% -> Fan speed: 1 (30%)

RH 50% - 70% -> Fan speed: 2 (50%)

RH 71% - 100% -> Fan speed: 3 (70%)

Boost:

Fan speed: 100%

The user can turn the Boost mode on via the faceplate. The fan will come on for 5 minutes at 100%.