Fans

Provides a detailed overview of fan fundamentals intended to help system designers understand their performance, selection, application and control.  

Topics include:

• Terminology
• Testing
• Fan performance curve
• System resistance curve
• Fan surge
• Fan paralleling
• Types of fans (forward curved, backward inclined, radial, tubular, axial)
• Fan laws
• Industry standards (AMCA)
• Inlet and discharge conditions
• Transitions
• Drive and bearing losses
• Fan modulation devices (scroll volume damper, inlet and discharge dampers, inlet vanes, speed modulation, blade pitch variation)
• Parallel and series operation
• Draw-thru vs. blow-thru
• Supply fans in systems
• Return fans
• Motors and controls
• Types of motor starters
• Power transmission
• Sound and vibration control
• Selection
• Specification
• Installation
• Maintenance
• Troubleshooting
• Field measurement methods