TROX's Type DID 300B is a flush ceiling active chilled beam with a nominal width of 300 mm. The device can be used for cooling and/or heating. It has side or top entry spigot feature for fresh air and may also come with additional spigot for extract of exhaust air (fitted adjacent to the primary air duct). Primary air volume flow required for fresh air supply enters the upper plenum box via connection of spigot, then discharged into the mixing zone via nozzles which are fitted into a diaphragm plate. Air induced is drawn from the room through a water coil.