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Aluminium roof exhaust fan, 24.4 inch diameter, 26.6 inch height, square 22 inch base, belt drive, unassembled

Dayton

Dayton 7AE90 belt-drive roof exhaust fan 11 in wheel 386 cfm 115/208-230V

SKU CH-4VDM-MD1DY

Belt-drive centrifugal roof exhaust fan with an 11 in wheel delivering 386 cfm at zero static pressure, operating on 115/208-230 V single-phase power and including a 1/4 hp motor

  • Belt-drive design reduces motor strain for quieter rooftop exhaust
  • 386 cfm airflow at zero static pressure clears fumes quickly
  • 115/208-230 V single-phase power suits commercial roof wiring
  • 11 in aluminium wheel resists corrosion in harsh rooftop conditions
  • Includes motor and drive package for complete rooftop installation

Dayton 7AE90 Roof Exhaust Fan

The Dayton 7AE90 is a belt-drive centrifugal roof exhaust fan built for commercial or industrial ventilation. It moves 386 cfm at zero static pressure and runs on 115/208-230V single-phase power with a 1/4 hp motor. The 11 inch wheel fits a square 22 by 22 inch base and the unit stands 26.6 inches high. It is designed for flammable vapor air streams.

Assembly and Belt Drive Setup

This fan ships unassembled and includes the drive package and motor. Installers must mount the motor, align the pulleys and tension the belt before wiring. Incorrect belt tension or pulley misalignment are the most common causes of vibration and premature bearing wear. The square base requires a matching 22 inch curb opening and secure flashing to prevent leaks.

Pre-Order Electrical and Structural Checks

Confirm the building supply matches the 115/208-230V nameplate voltage and single-phase service before ordering. Verify the roof structure can support the assembled weight and that a 22 inch square curb is already in place or can be fabricated. Ensure local codes allow belt-drive fans for flammable vapor exhaust and that disconnect means are accessible at the roof level.

Highlights

  • Belt-drive design reduces motor strain for quieter rooftop exhaust
  • 386 cfm airflow at zero static pressure clears fumes quickly
  • 115/208-230 V single-phase power suits commercial roof wiring
  • 11 in aluminium wheel resists corrosion in harsh rooftop conditions
  • Includes motor and drive package for complete rooftop installation

Specifications

BrandDAYTON

Questions about this item

How can I confirm the fan is moving air at 386 cfm after installation?

Measure static pressure at the roof curb; the fan should read .000 in SP when delivering the rated 386 cfm.

What components arrive in the box and what must I source separately?

The shipment includes the motor, belt-drive package and wheel; you supply the roof curb, wiring and disconnect.

Should I wire the unit for 115 V or 208-230 V?

Choose 115 V for standard household circuits or 208-230 V for commercial three-wire service; the motor is dual-voltage rated.

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