Standard Construction
Damper Frame: 5" x 1" (127 x 25) galvanized steel hat channel with interlocking corner gusset. Equivalent to 13 gauge 92.4) channel frame. Low profile head and sill are used on sizes less than 13" (330) high.
Damper Blades: 6" x 14" gauge (152 x 2.0) equivalent galvanized steel - airfoil. Parallel.
Sleeve: 16" x 20 gauge (406 x 1.0) galvanized steel.
Damper Axles: 1/2" (13) diameter plated steel hex.
Damper Linkage: Concealed in frame.
Damper Bearings: Synthetic.
Seals: Silicone blade edge seals integrally rolled and mechanically fastened to blades. Flexible metal jamb seals.
Damper Actuator: Modulating 24V, spring close, external mount.
Transmitter: ELECTRA-flo G5 with NEMA 1 enclosure.
Minimum Size: 8" x 6" (2-3 x 152)
Maximum Size:
Single Section: 48" x 72" (1219 x 1829)
Multiple Section: 120" x 120" (3048 x 3048)
Ratings
System Velocity Range: 0-4000 fpm (0-20.32 m/s)
Maximum System Pressure: 2 in. wg. (0.50 kPa)
Leakage:
3.0 cfm/ft2 @ 1.0 in. wg. (0.015 m3/s/m2 @ 0.25 kPa)
4.0 cfm/ft2 @ 1.0 in. wg. (0.02 m3/s/m2 @ 0.25 kPa)
8.0 cfm/ft2 @ 4.0 in. wg. (0.041 m3/s/m2 @ 1.0 kPa)
9.7 cfm/ft2 @ 6.0 in. wg. (0.049 m3/s/m2 @ 1.5 kPa)