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Aluminium roof exhaust fan, 14 inch blade, 29 by 18.3 by 28.6 inches

Dayton

Dayton 39FV56 Axial Downblast Roof Exhaust Fan 14 in 115V AC 1/2 hp 422 cfm

SKU CH-TYAZ-68REW

Axial downblast roof exhaust fan with 14 in blade, 1/2 hp motor, 115V AC, and 422 cfm airflow

  • 14 in blade moves 422 cfm exhaust airflow
  • 1/2 hp motor runs on 115V AC single phase
  • Aluminum housing resists corrosion on roof mounts
  • High-efficiency motor reduces energy use
  • Open dripproof enclosure handles 120 °F inlet air

Dayton 39FV56 Roof Exhaust Fan

The Dayton 39FV56 is an axial downblast roof exhaust fan built for rooftop mounting. It delivers 422 cfm of exhaust airflow at zero static pressure using a 14 in blade diameter and a 1/2 hp motor rated for 115V AC single-phase power. The assembled aluminum housing measures 29 in long, 28.6 in wide and 18.3 in high.

Open dripproof motor and single-speed operation

The motor uses an open dripproof enclosure and runs at one fixed speed with a high-efficiency design. It accepts inlet air temperatures up to 120 degrees F and develops a maximum static pressure of 1 1/4 in wc. The unit ships fully assembled, so no field assembly of the fan or motor is required before installation on the roof curb.

Thermals noise and power draw

The 1/2 hp motor draws power from a standard 115V AC single-phase supply while moving 422 cfm. Operating temperature is limited to a maximum inlet air temperature of 120 degrees F. The open dripproof enclosure and four-blade axial design produce audible airflow noise typical of roof-mounted exhaust fans running at full speed.

Highlights

  • 14 in blade moves 422 cfm exhaust airflow
  • 1/2 hp motor runs on 115V AC single phase
  • Aluminum housing resists corrosion on roof mounts
  • High-efficiency motor reduces energy use
  • Open dripproof enclosure handles 120 °F inlet air

Specifications

BrandDAYTON

Questions about this item

How much static pressure can the 1/2 hp motor overcome before airflow drops?

The fan is rated for a maximum static pressure of 1 1/4 in wc, which is the limit reached first under sustained high-resistance operation.

What are the noise and heat levels when the open dripproof motor runs continuously at 115V AC?

The open dripproof motor enclosure allows heat to dissipate directly into the airstream while the 14 in four-blade design moves 422 cfm at a single speed.

What roof opening and wiring must already exist for the 29 in by 28.6 in aluminum housing?

A roof curb matching the 29 in length and 28.6 in width footprint plus a 115V AC single-phase supply circuit are required for installation.

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