Dayton 4YC94 Supply Vent Trap 14 In 115V 586 CFM

Supply Vent Trap for Commercial Ventilation

The Dayton 4YC94 is a roof-mounted supply fan designed to deliver fresh air into commercial and industrial buildings. Its 14 inch blade diameter and 115V AC single-phase motor suit installations where a dedicated low-voltage supply is standard. The assembled aluminium housing arrives ready for rooftop placement, targeting facility managers who need reliable make-up air without complex field assembly.

Open Dripproof Motor and Aluminium Housing

The open dripproof motor enclosure permits airflow over the windings for cooling while resisting falling moisture, a practical choice for covered roof curbs. Aluminium construction reduces weight on the roof structure and resists corrosion better than plain steel. The four-blade axial design produces 586 cfm at zero static pressure with a maximum capability of three-quarters inch water column, allowing the unit to overcome moderate duct resistance without a high-efficiency motor upgrade.

Airflow Capacity and Thermal Limits

At 586 cfm the fan comfortably handles general ventilation in medium-sized warehouses, workshops or retail spaces where make-up air demand matches that volume. The 120 degree Fahrenheit maximum inlet temperature means the unit is not suited for exhausting high-heat processes such as ovens or foundry equipment. The single-speed, half-horsepower motor offers no variable airflow control, so buildings requiring demand-based ventilation will need external dampers or a separate speed controller.