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| 1. | Greenheck Fan Ventilation Hood DFD-M150 User Guide I GREENHECK Model DFD M150 APPLICATION Model DFD M150 is approved for use in walls floors and partitions with fire resistance ratings less than 3 hours This model carries a V 2 hour UL fire damper label UL 555 classifies dynamic rated fire dampers for use in HVAC systems that are operational in the event of fire Model DFD M150 has also been tested in accordance with BS476 to 4 hours at Warrington Fire UK and is approved for fire partitions of 4 hours or less where B |
PDF Manual | ENGLISH | |||||||||||