The Flexicool® QPVA and QPBA passive chilled beams provide for the cooling in a room. QPVA (width 570 mm) and QPBA (width 430 mm) are broad passive chilled beams. The passive chilled beams are either ceiling installed, in which case they lie flush with the suspended ceiling, or free space installed without ceiling. The passive chilled beams are available in lengths 1,2 - 4,2 m at 60 cm intervals. In installations with passive chilled beams the air is supplied by means of separate supply air valves.