WebModel DFD-150X series meets the requirements for fire dampers established by: • National Fire Protection Association NFPA Standards, 80, 90A, and 101 • International Building … WebOFSD-212. Model OFSD-212 is approved for use in walls, partitions, and floors with fire-resistance ratings less than three hours. This damper allows for easy access through the grille to the damper, closure device, and actuator. Pressure: Up to 6 in. wg.
DFD-150, R22, March 2024 - Greenheck-USA
WebEHH-601. Model EHH-601 protects air intake and exhaust openings in exterior walls sensitive to water penetration. The design features a drainable head. Horizontal rain resistant blades provide exceptional resistance to wind driven rain. 6-inch depth. 47% free area (4 ft. x 4 ft.) 1,250 fpm free area velocity at the beginning point of water ... WebThese installation instructions show recommended installation procedures. These or other installation methods may be followed subject to the approval of the authority having jurisdiction. Model CRD-310, 320, 350, 360, 310L, 320L, 310WT, CRD-320WT, and 700 are specific sizes of Greenheck’s model DFD-350 dampers equipped with hardware to facilitate duties and responsibilities of pipe fitter
Static 3 Hour Rated Dampers - FD-350 Greenheck
WebPage 5 12.9 15.5 18.1 20.6 Greenheck Kunshan Co. Ltd. and Greenheck Fan Corporation certifies that the model DFD-M210 shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Programs. WebNov 11, 2024 · Installation of Fire Smoke Damper Within Wall Opening Duct-to-Sleeve Connections When dampers require a duct-to-sleeve connection, UL allows a rigid or breakaway connection. A rigid connection is, by UL’s definition, any connection that has not been qualified as a breakaway connection. WebModel FD-350 is for use in walls, floors, and partitions with fire-resistance ratings of three hours or more. This model is UL 555 classified with a 3¹¹/₁₆-in. frame. Static rated fire dampers used in HVAC systems automatically shut down in the event of a fire emergency. Temperature: Up to 212°F 10-Day Fixed Lead Times on Select Configurations. in a seed of maize cotyledon is considered as