Centrifugal Roof Exhaust Fans – NYD / NYB

Greenheck’s model NYD and NYB tamper-resistant centrifugal roof exhaust fans provide the industry’s
best performance and durability for general clean air applications where tamper resistance is required.
• Performance as cataloged is assured. All fan sizes are tested in our AMCA Accredited Laboratory and all models are licensed to bear the AMCA Air Performance seal.
• Greenheck subjects these products to extensive life testing assuring you the fans will provide years of reliable performance.

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Description

Centrifugal Roof Exhaust Fans – NYD / NYB

Greenheck’s model NYD and NYB tamper-resistant centrifugal roof exhaust fans provide the industry’s

best performance and durability for general clean air applications where tamper resistance is required.

  • Performance as cataloged is assured. All fan sizes are tested in our AMCA Accredited Laboratory and all models are licensed to bear the AMCA Air Performance seal.
  • Greenheck subjects these products to extensive life testing assuring you the fans will provide years of reliable performance.

Standard Construction Features

  • Housing is constructed entirely of heavy-gauge galvanized steel and includes louvered vents for positive motor cooling.
  • Hood is hinged to swing fully open for complete access to all internal components. Open hood is safely supported and will not drop closed. Hinge is steel with protective coating.
  • Internal structural supports are heavy-gauge galvanized steel angles.
  • Drive frames and motor supports are heavy-gauge galvanized steel and are mounted on resilient isolators.
  • Backward-inclined, non-overloading wheel is constructed of aluminum.
  • Heavy-duty ball bearing motor. Single and three phase fans include a NEMA-1 switch.
  • Birdscreen constructed of wire mesh is attached to the structural supports. (Removed from drawing for easy viewing internally)