| # | Title | Type | Language | |||||||||||
| 1. | Greenheck Fan Ventilation Hood OFSD-311 User Guide Model OFSD 311 3 GREENHECK Out of Wall Combination Fire Smoke Dampers Steel Airfoil Blades Application Model OFSD 311 is an out of the wall high performance combination fire smoke damper with class I leakage OFSD 311 is approved for use in walls partitions and floors with fire resistance ratings less than 3 hours Removal of wall grille allows access to actuator and other components High strength airfoil blades insure the lowest resistance to airflow in HVAC |
PDF Manual | ENGLISH | |||||||||||