Radiation damper shall be suitable for use with the ventilation fan models listed in left column:
Radiation damper shall be rated for use in up to three hour ceiling constructions. It shall be ETL Classified (UL-555C) and meets or exceeds NFPA-90A.
Radiation damper shall be suitable for use with the ventilation fan models listed in left column:
Radiation damper shall be rated for use in up to three hour ceiling constructions. It shall be ETL Classified (UL-555C) and meets or exceeds NFPA-90A.