AF SYSTEMS AF M400

The AF M4000 pressurisation system is a device compliant with Ministerial Decree of 18 October 2019, designed to ensure the pressurisation of the smoke filter chamber in the event of a fire, following a command received from the fire detection system (or other signalling device).‎ In the event of an alarm, the control board will activate the pressurisation system, ensuring that a positive pressure of 0.‎30 mbar (30 pascals) is achieved with automatic pressure regulation, taking into account pressure drops due to air leakage through fire-rated doors and windows (as per the average value specified in the UNI EN 12101-13 standard)* and any service penetrations sealed in accordance with the fire resistance rating of the filter itself.‎ In the event of a power failure, thanks to the supplied backup battery pack, the AF M4000 system will ensure that the positive pressure is maintained for over 180 minutes.‎ Further info from manufacturer on AF M400 AF SYSTEMS