The HZ700MD was designed for applications needing a horizontal blade appearance but a vertical blade level of performance with Miami-Dade approval NOA No. 20-1201.01.

These dampers offer Class IA leakage performance for added reliability and energy savings.

The new HZ700 louver is a 7-inch-deep louver comprised of two pieces, a 4-inch horizontal front and a 3-inch vertical rear louver.

Testing and maintenance requirements are provided in Chapter 19 of NFPA 80 for fire dampers and Chapter 7 of NFPA 105 for motorized smoke dampers and combination fire/smoke dampers.