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Square roof exhaust fan with direct-drive motor, 19 inch base, 8-1/4 inch wheel diameter

Dayton

Dayton 4YC64 Downblast Vent Trap, Direct Drive, 8-1/4 In, 60 Hz

SKU CH-FCVM-PV931 MPN 4YC64

Centrifugal downblast roof exhaust fan with direct-drive motor delivering 374 cfm airflow at 115V AC

  • TypeDrain Components
  • Direct-drive design eliminates belt maintenance
  • 374 cfm airflow at zero static pressure
  • 1/30 hp motor runs on standard 115 V single-phase power
  • Square 19-inch roof curb simplifies installation
  • Rated for clean-air exhaust in low-static applications

Downblast Vent for Roof Mounting

This downblast vent is a direct-drive exhaust fan assembled for roof installation. It moves 374 cfm of clean air at zero static pressure and operates on a 115V AC single-phase supply. The unit includes the motor and drive package in a square 19-inch base.

Installers needing a compact direct-drive exhaust

The fan suits contractors fitting a low-horsepower roof vent where a 1/30 hp motor and 3/8 in wc maximum static pressure meet the system demand. It is not for ducts requiring higher airflow, greater static-pressure capability or three-phase power.

374 cfm at zero static pressure

This single airflow figure at .000 in SP determines whether the vent can satisfy the ventilation load. If the design calls for more capacity or higher pressure, a different unit is required.

Highlights

  • Direct-drive design eliminates belt maintenance
  • 374 cfm airflow at zero static pressure
  • 1/30 hp motor runs on standard 115 V single-phase power
  • Square 19-inch roof curb simplifies installation
  • Rated for clean-air exhaust in low-static applications

Specifications

TypeDrain Components
BrandDayton
Model4YC64

Questions about this item

Does the 4YC64 arrive fully assembled with the motor and drive package included?

Yes, the unit is supplied assembled and includes both the motor and the drive package so no separate motor or drive components need to be purchased.

Which voltage and frequency version should be selected for a standard North American 115 V, 60 Hz supply?

The nameplate is rated 115 V AC single-phase at 60 Hz, matching typical residential and light-commercial circuits in North America.

What airflow can be expected at zero static pressure when the fan is installed on a roof?

At 0.000 in wc static pressure the fan delivers 374 cfm of clean air exhaust in a roof-mounted configuration.

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