Product description

The Vent Axia Lo-Carbon NBR dMEV 100mm Humidistat & Timer 475142A is a continuous running, constant volume fan has a switched live (LS) and innovative digital display with a harmonised control platform. Quiet running and with high pressure development, the dMEV is best in class. The unique patented display provides the calibrated installed airflow and pressure meaning that there is no need to test the installation with an airflow measuring device. The constant volume technology automatically adjusts the speed of the fan to ensure the desired airflow is delivered. A silent high pressure axial impeller means Lo-Carbon dMEV can meet the requirements of many domestic installations without the need to use a traditional centrifugal fan. A brand new control platform also provides fully adjustable airflow in 1l/s increments, meaning whole house rates can be achieved easily using fewer fans than is currently possible with any other dMEV product on the market.

The new 100mm dMEV fan will further improve Dwelling Emission Rates (DER) by improving efficiency and lowering noise. The 100mm DMEV should have variable speed settings of 5-30 l/s on trickle and 6-35 l/s on boost, achieving a minimum noise level of 13 dB(A) at 3 metres.

The unit shall include an integral humidity sensor with ambient and rapid response capability, which increases fan speed in proportion to the level of humidity detected. The unit shall also automatically raise the humidity threshold set point as temperature decreases in order to prevent unnecessary boosting due to background humidity levels.

The unit shall be able to be commissioned as a continuous running or intermittent fan according to the Building Regulations compliant design.

The fan will have an in-built spirit level for ease of installation. Commissioning of the fan in accordance with the Building regulations shall be achieved without the use of an airflow measuring device. The fan shall be provided with a UKAS calibrated, constant volume function with the flow rates displayed on the unit without having to remove the cover via the display prism.

Key features

• Digital controls with display
• Fully adjustable normal & boost airflow settings
• Suitable for bathroom and utilityrooms
• Recognised in SAP PCDB
• Constant volume which can be switch on or off
• Display showing airflow and system pressure
• IPX5 Rated
• Multi-orientation grille
• NHBC Approved
• Free delivery

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