Fan Wall Technology

Specification: Zero Single-Point-of-Failure

Modular array fan wall retrofits replacing massive belt-driven blowers with multi-fan redundancy.

Engineering Scope & Overview

Traditional air handlers rely on a single massive motor and blower wheel; if the belt breaks or motor burns out, the entire building loses ventilation. Fan Wall Technology retrofits replace the single blower with an array of smaller, direct-drive electronically commutated fans with built-in redundancy.

WMI Field Protocol & Certified Best Practices

• N+1 modular redundancy: if one fan stops, remaining fans ramp up seamlessly
• Elimination of belts, pulleys, and pillow-block bearings (zero grease maintenance)
• Dramatic reduction in mechanical acoustic noise and low-frequency rumble
• Compact modular footprint enabling installation through standard doorways

Frequently Asked Questions

What is the primary benefit of Fan Wall technology over traditional centrifugal blowers?

Zero single point of failure. If one fan motor trips, the remaining fans automatically accelerate to maintain target static pressure and airflow, ensuring zero tenant disruption.

Can a Fan Wall retrofit be installed inside an existing air handling unit casing?

Yes. The modular fan cubes fit through standard 3-foot access doors, eliminating the need to tear out mechanical room walls or hire heavy cranes to replace the entire air handler.

How does Fan Wall technology reduce building acoustic noise?

Multiple smaller direct-drive impellers produce higher-frequency sound that is easily attenuated by standard duct liners, eliminating the low-frequency rumble and belt squeal of large centrifugal wheels.

Emergency Dispatch & RFP Inquiry

Contact Western Mechanical Inc. toll-free at (800) 585-5085 for commercial and industrial service across Southern California.