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Aluminium roof fan, 29 inches long, 18.3 inches high, 28.6 inches wide, 12 inch blade diameter, 1/4 hp motor, 115V

Dayton

Dayton 4YC92 aluminium roof fan 29"L 18.3"H 28.6"W 1/4 hp 115V 444 cfm

SKU CH-D47Z-Z9C6K

Aluminium roof supply fan with 12‑inch blades moves 444 cfm at 115 V, 1/4 hp motor, 29"L × 18.3"H × 28.6"W

  • 12-inch blade diameter moves 444 cfm airflow
  • 1/4 hp motor runs on 115V AC single phase
  • Aluminium housing resists corrosion in roof mounting
  • Assembled unit installs directly on roof surface
  • Operates up to 120°F inlet air temperature

Product Identity

The Dayton 4YC92 is an axial downblast roof supply fan built for commercial or industrial ventilation. Its aluminium housing and 12 in blade diameter suit installers who need a lightweight, corrosion-resistant unit for roof-mounted air supply.

Installation Notes

The fan ships fully assembled, so mounting begins with securing the curb or base to the roof deck. The 115V single-phase motor requires only a standard branch circuit, but the open air-over enclosure means the installer must verify that ambient intake air stays below 120 Degrees F to avoid thermal overload.

Sustained Operation

At zero static pressure the unit moves 444 cfm and is rated for a maximum of 1/2 in wc, so airflow will taper as duct resistance rises. The 1/4 hp motor runs at a single speed, making output predictable but non-adjustable during long duty cycles.

Highlights

  • 12-inch blade diameter moves 444 cfm airflow
  • 1/4 hp motor runs on 115V AC single phase
  • Aluminium housing resists corrosion in roof mounting
  • Assembled unit installs directly on roof surface
  • Operates up to 120°F inlet air temperature

Specifications

BrandDAYTON

Questions about this item

How can I confirm the 1/4 hp motor is delivering 444 cfm after installation?

Measure airflow at the roof opening with an anemometer; it should read 444 cfm at .000 in SP 1 when the 115V single-phase motor runs at full speed.

What comes with the assembled aluminium housing and what must I supply?

The unit ships fully assembled with a 12-inch four-blade aluminium impeller and open air-over motor; you provide roof curb, flashing, 115V wiring and disconnect.

Should I choose the 29-inch length model or a different size for my roof opening?

This model is 29 inches long, 28.6 inches wide and 18.3 inches high; select it only if your curb matches those outer dimensions.

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