AC-845AF
8″ deep fixed semi elliptical blade with woven glass fiber acoustic infill; in extruded aluminum construction; frame with channel profile 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; tested to ASTM E90-09 for acoustical performance, STC-10 and OITC-9.
![](https://ontariosa.com/wp-content/uploads/2024/02/AC-845AF.png)
AIRFLOW PERFORMANCE
- Free Area is 25% based on a test sample of 48in (1220mm) x 48in (1220mm)
- Beginning point of water penetration (@0.01oz / ft² of free area) – 1,095 fpm (5.6 m/s)
- Intake pressure drop at beginning point of water penetration—0.08 in. wg (20 Pa)
- Intake pressure drop @ 1,000 fpm free area velocity—0.07 in. wg (17 Pa)
- Discharge loss coefficient Classification—Class 3