Fan Wall Technology

Fan Wall Technology

Energy Efficiency

  • Ultra-high efficiency permanent magnet motors have proven to be 7% – 15% more efficient compared to NEMA Premium® efficiency induction motors.
  • Variable Frequency Drives (VFD) enable individual on/off and speed control of fans to maintain peak static efficiency and pressure over the air handler operating range.
  • Fans come in 7 sizes from 10 – 22 inches to match performance requirements and optimize operation efficiency.

Redundancy and Reliability

  • If a fan or motor failure occurs in a FANWALL system, the remaining operating fans can compensate to maintain airflow and static pressure until the failed component(s) can be repaired or replaced.
  • Dedicated VFD for each fan and motor combination. A fan, motor, or VFD failure is inherently isolated, eliminating the need for a bypass VFD or potential for a ground fault failure of the entire array.

Flexible Configurations

  • Both stainless steel fans and high-performance polymer fans are available in multiple sizes to efficiently meet system performance or application requirements.
  • Choice of motors to meet project efficiency requirements, including induction, PM, and ECMI.

Advanced Engineered Design

  • Variable cube dimensioning allows the selected array to more closely fit air tunnel dimensions, so that the fans produce a uniform piston of air over the entire coil surface for optimal heat transfer and even filter loading.
  • System optimization controls allow on/off control of individual fan cubes to match requirements in variable airflow applications with the optimum number of fans and motors operating at peak efficiency.
  • FANWALL backdraft damper seals off the fan to prevent recirculation of system air with very little leakage if a cube is taken out of operation. When open, the damper’s aerodynamic design ensures almost zero-system effect.
  • Stringent balance requirements and sturdy components in each FANWALL cube eliminate internal vibration and the need to isolate a FANWALL array within the air handler. It can also help eliminate the need for a concrete inertia pad for the air handler and facilitate meeting requirements for seismic certification.
  • The need for sound attenuators and other ancillary components that create a static-pressure penalty within the air handler can be eliminated.

Low Maintenance and Service

  • FANWALL systems eliminate belts and sheaves, because they use direct-drive fans instead of belt-driven fans.
  • Permanently sealed motor bearings provide long life and require little-to-no maintenance.
  • Components in a FANWALL system typically are significantly smaller, lighter weight, and easier to access than the same components for conventional fan systems.