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Dayton 7AX38 downblast exhaust ventilator, unassembled, 13-1/4 inch wheel, 19 inch square base, grey metal finish

Dayton

Dayton 7AX38 Downblast Exhaust Vent 13-1/4 In

SKU CH-JW4N-FCBFF MPN 7AX38

A 13-1/4 inch wheel downblast exhaust ventilator delivering 1692 CFM at zero static pressure and 1404 CFM at .500 inches SP.

  • TypeDrain Components
  • Centrifugal downblast design clears exhaust efficiently
  • 1692 CFM free-air flow for strong ventilation
  • 1404 CFM at .500 in. SP overcomes duct resistance
  • 1/4 HP motor runs on 115/230 V single phase
  • 3 sones at .250 in. SP for moderate noise

Centrifugal downblast exhaust ventilator

This standard-duty centrifugal downblast exhaust ventilator moves air through a 13-1/4 inch wheel. It delivers 1692 CFM at zero static pressure and 1404 CFM at 0.500 inches of static pressure. The unit operates on 115/230 volt, single-phase, 60 Hz power with a 1/4 HP motor. It is supplied unassembled with a drive package for roof mounting.

Suitable applications and limitations

The ventilator suits roof installations requiring downblast discharge at moderate airflow rates up to 1692 CFM. It fits projects where a 19 by 19 inch base and 180 degree Fahrenheit maximum inlet temperature are acceptable. Buyers needing higher static pressure performance, lower sound levels than 12.3 sones, or three-phase motor supply should look at other equipment.

Critical specification for selection

Wheel diameter of 13-1/4 inches determines the airflow curve and physical footprint. Verify that 1692 CFM at free air and 1404 CFM at 0.500 inches static pressure meet the system demand. Confirm 115/230 volt single-phase power and roof curb availability before ordering.

Highlights

  • Centrifugal downblast design clears exhaust efficiently
  • 1692 CFM free-air flow for strong ventilation
  • 1404 CFM at .500 in. SP overcomes duct resistance
  • 1/4 HP motor runs on 115/230 V single phase
  • 3 sones at .250 in. SP for moderate noise

Specifications

TypeDrain Components
BrandDayton
Model7AX38

Questions about this item

Does the 7AX38 require a roof curb for a new installation?

Yes, the specifications state it requires a roof curb for new installations.

Can the 7AX38 operate on a 115-volt single-phase circuit?

Yes, the motor is rated for 115/230 volts at 60 Hz, single phase.

What sound level should I expect at 0.250 inches static pressure?

The unit is rated at 12.3 sones at 0.250-In. SP measured at 5 feet.

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