DL-440

DL-440

DESCRIPTION

4″High Performance Drainable; extruded aluminum construction; frame with channel profile; corner joints mitered and mechanically fastened, with continuous recessed caulking channel each side; intermediate mullions matching frame; gutters; rated for air performance and water penetration ,maintained effectiveness rate tested in accordance with AMCA 500-L.

PERFORMANCE

• Free Area: 53% , based on a test sample of 48in (1219mm) x 48in (1219mm)
• Free Area Velocity at Beginning Point of Water Penetration: 973 fpm (4.94 m/s)
• Air Volume at Beginning Point of Water Penetration: 8239 cfm (3.89 m3/s)
• Pressure Drop at Beginning Point of Water Penetration: 0.12 in. H2O (29.6 Pa)
• Intake Pressure Drop at 1000fpm Free Area velocity: 0.13 in. H2O (31.4 pa)
• Exhaust Pressure Drop at 1000fpm Free Area velocity: 0.15 in H2O (37.3 pa)
• Airflow Classification—Class 1