5DDD Series 8" Roof Mount Direct Drive Downblast Fan5DDD085A 5DDD Series 8" Roof Mount Direct Drive Downblast Fan
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- All ventilators are UL Standard 705 listed
- Ventilators are CSA listed according to Standard C22.2 No. 113-M1984 (Fans & Ventilators)
Features and Specifications
- Downblast discharge design exhausts foul air from industrial and commercial buildings
- Ventilators can be mounted on the roof or wall
- Durable spun aluminum construction with steel support braces
- Backward inclined aluminum fan wheel
- Externally cooled motor compartment
- Motor located out of discharge airstream
- Motors are 115V or 115/230V, 60 Hz, ball bearing motors with Class B insulation
- PSC motors included in standard design (shaded pole motor style used for 8" models)
- One-piece removable exhaust hood
- Inlet temperatures up to 170°F
- Built-in bird screen to protect discharge and ensure safe, obstruction-free operation
- Motor and wheel are easily detachable without removing ventilator from curb
- Junction box mounted in motor compartment
- Windband rolled bead for added strength and easy maneuverability
- Welded curb cap corners eliminate water entry into ducts or building
- All units are speed controllable
Accessories (available separately)
- For more information, see Power Roof Ventilator Accessories
- Speed controllers
- Backdraft dampers
- NEMA 1, NEMA 3R and NEMA 4 disconnect switches
- Fixed mounting curbs
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