Advertisement
3
Fan Isolation Application
For air handling equipment isolation, leakage rated dampers are designed to operate with blades running
horizontally. Dampers can be installed in a vertical or horizontal position. Sealants and damper seal materials meet
the requirements for NFPA 90A for smoke developed rating (<50) and flame spread index (<25) as tested per UL
723/ASTME84-91 A/NFPA 255. Dampers can be attached to the fan system discharge or inlet without being 24 in.
(610mm) of a smoke barrier when used as an air handling equipment isolation damper.
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the
literature section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
2
472664 • Flange Mounted SMD, Rev. 4, October 2019
4
1
2
5
Item
Description
1
Damper frame
2
Duct outlet
3
Fan (not limited to centrifugal)
4
#10 sheet metal screws
5
Actuator
The actuators are to be installed to
function per system requirements and to
be controlled by smoke detection devices.
Copyright 2019 © Greenheck Fan Corporation
Advertisement
