SL-440 Operable

SL-440 OPERABLE

DESCRIPTION

OSA Operable series; designed for exhaust openings in building exterior walls that require tight air shut off; extruded aluminum construction; frame with channel profile; corner joints mitered and mechanically fastened, with continuous recessed caulking channel each side; rated for an air performance and water penetration maintained effectiveness rate tested in accordance with AMCA 500-L.

PERFORMANCE

• Free Area: 51.7% , based on a test sample of 48in (1219.2mm) x 48in (1219.2mm)
• Free Area Velocity at Beginning Point of Water Penetration: 820 fpm (4.17 m/s)
• Air Volume at Beginning Point of Water Penetration — 48in x 48in unit: 6,485 cfm (3.06 m³/s)
• Pressure Drop at Beginning Point of Water Penetration: 0.1 in. H2O (25 pa)
• Airflow Classification—Class 2