Specifications – Series CDRP

Round Plaque Ceiling Diffuser
CDRP-1 – Flush Surface Mount

Air outlets shall be model CDRP manufactured by GREENHECK Diffuser shall be constructed aluminum (AL) or steel (S).  

Diffuser shall be constructed of a round flat face panel and a round outer cone. Outlet shall have a fixed horizontal pattern. The units shall be the size and quantity as outlined in the plans and specifications.

Round face panel shall be removable to allow access to the round outer cone. Outlet shall be designed for surface mounting  applications and have an outer cone that allows flush mounting to the ceiling opening.

Optional Dampers and Accessories
Butterfly Damper
GREENHECK model BDS aluminum round butterfly type dampers shall be provided. Damper shall consist of two butterfly style blades that can be adjusted from full open to full closed. Damper shall be adjusted with a screwdriver slot that can be assessed through the face of the diffuser.
Radial Shutter Damper
GREENHECK model RSD steel round radial shutter damper shall be provided. Damper shall consist of gang operated radial blades that slide perpendicular to air flow direction. The damper shall be adjusted from full open to full closed. Damper shall be adjusted with a screwdriver slot that can be assessed through the face of the diffuser.
Equalizing Grid
GREENHECK model G3 aluminum round equalizing grid shall be provided. Equalizing grid shall consist of 1/2" x 1/2" x 1/2" aluminum cubed core mounting in an aluminum frame.

Performance Specification
The manufacturer shall provide published performance data. Data shall be tested in accordance to ANSI/ASHRAE Standard 70- 2006.

Paint Specification
Process shall be anodic electrodeposition using an anodic acrylic paint. Units shall undergo pre‐ treatment including a pressurized spray stage using an alkaline cleaner and a de‐ionized water rinse.