Greenheck has introduced a round industrial control HVAC damper to accommodate higher velocities and pressure. Model HCDR-450 is rated for velocities up to 7000 fpm and pressure up to 30 in. wg, and ...
It also focuses on compartmentation and the dampers used to prevent the spread of heat, fire, and smoke as they contain products of combustion. Chapter 9 of the IBC contains requirements for ...
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