According to the company, the Model S-CUBE is the first spun aluminum centrifugal roof upblast fan to be UL-listed for emergency smoke control systems. The fan, available in five sizes, carries a UL rating of 500Â°F for 4 hrs and 1000Â° for 15 min. The spun aluminum housing offers a lower profile and lighter weight compared to traditional roof axial upblast fans, making it suitable for applications where roof weight loads or architectural appearance are a concern, says the company. Performance is available up to 1.5 in. wg and 12,000 cfm. In addition, the fan provides stable low-cfm performance, down to 1,000 cfm, the company says.
Greenheck, P.O. Box 410, Schofield, WI 54476-0410; 715-359-6171; 715-355-2399 (fax); firstname.lastname@example.org (e-mail); www.greenheck.com (website).