Specifications – Series RG41

Single Deflection Fixed Blade Return Grille 
RG41-1 – Surface Mount
RG41-6 – T-bar Lay-In

Air Inlets shall be model RG41 manufactured by GREENHECK. Units shall be single deflection fixed blade return or exhaust grilles of aluminum (AL) or steel (S) construction with a single set of fixed deflection blades with vertical (V) or horizontal (H) blade orientation. Border shall be 1 1/4" wide with aerodynamically shaped deflector blades on .666" centers set at 0° (or 40°).

Units to be specifically designed to match the appearance of the GREENHECK model SG41 single deflection supply grilles. The units shall be the size and quantity as outlined in the plans and specifications.

For Surface mounting:
Units shall be designed for surface mounting applications and be provided with counter sunk screw holes on the face of the device.

For T-Bar Lay-in:
Units shall be designed to integrate into the specified ceiling system. 

Damper Accessories (Optional)
Optional opposed blade damper shall be constructed of steel (Model OBD) or aluminum (Model OBDA). Damper must be operable from the face of the diffuser.

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.