Stainless steel ceiling diffusers shall be Paragon Model PG as manufactured by Anemostat and shall be selected to integrate with the ceiling system shown on the plans and as scheduled. The diffuser sizes shall be nominal 24” x 24” or 12” x 12”, as scheduled, with minimum 18” or 9” square appearance panels.

The diffusers shall be constructed of 304 or 316 stainless steel, or non-magnetic MRI-Aluminum construction as shown. The diffuser shall consist of a back pan and a removable, heavy gauge appearance panel attached to the back pan via (4) positive locking posts. The appearance panel shall have aerodynamic, rigid, hemmed edges around the perimeter and shall be a single piece construction. The panel shall be flat, smooth, and shall be free of any welding or forming blemishes.

The horizontal air discharge pattern shall be 360° type. Blank-off baffles shall be provided to obtain 1,2,or 3 way blow patterns as scheduled. The size and elevation of the appearance panel shall be as scheduled for Anemostat’s type A or C models.
 
Provide volume control, Model VD butterfly type stainless steel dampers as scheduled. Dampers shall be adjustable from the face. Volume control dampers for use with diffusers serving MRI Imaging rooms shall be located upstream and of sufficient distance from the room.

Diffuser finish shall be (Arctic white)(satin polished finish-stainless only)(color as selected by the Architect).

Provide published performance data determined in accordance with the latest ANSI/ASHRAE standards for throw, pressure, and sound.