Enumeration defining the typical types of fans.
HISTORY New enumeration in IFC2x2.
Air flows through the impeller radially using blades that are forward curved.
Air flows through the impeller radially using blades that are uncurved or slightly forward curved.
Air flows through the impeller radially using blades that are backward curved.
Air flows through the impeller radially using blades that are airfoil shaped.
Air flows through the impeller axially with reduced tip clearance and operating at higher tip speeds.
Air flows through the impeller axially with guide vanes and reduced running blade tip clearance.
Air flows through the impeller axially and small hub-to-tip ratio impeller mounted in an orifice plate or inlet ring.
User-defined fan type.
Undefined fan type.