Specifications & Technical Details
Surface Mount 550H 0°
Surface Mount with Damper 550H 0°
Surface Mount with Lay in 550H 0°
Surface Mount 550H 45°
Surface Mount with Damper 550H 45°
Surface Mount with Lay in 550H 45°
Surface Mount 550V 0°
Surface Mount with Damper 550V 0°
Surface Mount with Lay in 550V 0°
Surface Mount 550V 45°
Surface Mount with Damper 550V 45°
Surface Mount with Lay in 550V 45°
Performance Data
Oversize Details
Mullion Details
Critical Environment Installation Instructions
The Series 550 Return Air Grille is styled to match the 150 and 250 Supply Grilles. The face bars are non-adjustable and available in either a horzontal position (H) or vertical position (V), factory set at either 0° or 45° degrees, spaced on .750″ centers.
The same hollow air-foil bars used on the supply grilles are used on the return air grilles.
Available with horizontal face bars (550H) or vertical face bars (550V).
Specify: Series S-44 Opposed Blade Damper to make return register. The S-44 OBD assures even distribution of air across the grille face, as well as positive volume control.