Model XRUD – Direct Drive

Model XRUD direct drive upblast centrifugal exhaust fans are specifically designed for roof mounted applications. The direct drive motor delivers higher efficiency by eliminating belt losses.
With the industry’s best performance and durability for general clean air, high grease and other contaminant applications (as found in restaurant exhaust air and fume hood exhaust), this fan will provide long lasting, virtually maintenance free operation.

For greater efficiency and quick and easy balancing checkout our Vari-Green motor option, highly recommended for kitchen applications.
Vari-Green Motor

Product Features & Advantages:

  1. Quiet Operation - An aluminum, backward-inclined, non-overloading centrifugal wheel is utilized to generate high efficiency and minimal sound. Wheel cones are carefully matched to the venturi for maximum efficiency. Each wheel is statically and dynamically balanced, for long life and quiet operation.
  2. Prewired Switches NEMA-1 disconnect switch is factory mounted and wiring is provided from the motor as standard (other switches are available).
  3. Precision Tooling – The fan shaft is precisely sized, ground, and polished so the first critical speed is at least 25% over the maximum operating speed. Close tolerances, where the shaft makes contact with bearings, results in longer bearing life.
  4. Longer Bearing Life - Bearings are 100% factory tested and designed specifically for air handling applications with a minimum L(10) life in excess of 100,000 hours [L(50) average life of 500,000 hours].
  5. Motor – Carefully matched to the fan load and mounted out of the airstream.
  6. Easy Motor Access - Motor cover is of Aluminum construction. Stainless steel fasteners are attached for easy removal and access to the motor compartment and drive assembly.
  7. Easier Maintenance -  Stainless xteel fasteners allow for easy removal and access to the motor compartment and drive assembly.
  8. Longer Motor Life – Cooling fins located on top of the fan wheel draw outside air through a large breather tube, directly into the motor compartment. Positive motor cooling with fresh air results in maximum motor life.
  9. Maneuverability - Select models have various lifting points located on the drive frame and bearing plates.
  10. Reduced Noise and Vibration – True vibration isolators contain two independent studs with rubber neoprene to support the drive assembly and wheel for long life and quiet operation. (No steel-on-steel contact)
  11. Simple System Balancing – Select the Accurex Vari-Green motor with integrated balancing pot or add our low cost speed controller to quickly balance your system at start-up
  12. Protection– One-piece, heavy-gauge aluminum windband, with a rolled bead for extra strength, directs exhaust air away from the mounting surface.
  13. Leakproof Construction – One-piece windband is continuously welded to the curb cap and drain trough.
  14. Easy Mounting – Aluminum curb cap has prepunched mounting holes to ensure correct attachment to the roof curb.
  15. Single Point Drain System – the drain trough allows for one-point drainage of water, grease and other residue.

Options and Accessories

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Performance and Certifications

  • AMCA Certified
  • UL/cUL 762 Listed

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Model Designation Guide

The Model Designation Guide is designed to completely identify the fan. The correct code letters must be specified to designate belt or direct drive, and roof or wall mounted configurations. The remainder of the model number is determined by the size and performance.

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