Specifications – Series HDSG

Heavy Duty Single Deflection Supply Grilles
HDSG41-1 – Surface Mount
HDSG41-6 – T-bar Lay-In

Air Outlets shall be model HDSG41 manufactured by GREENHECK. Units shall be single deflection supply grilles of aluminum (AL) or steel (S) construction with a single set of deflection blades with vertical (V) or horizontal (H) blade orientation. Unit material shall be equivalent to 14-gauge deflector blades and 16-gauge borders.

The units shall be the size and quantity as outlined in the plans and specifications.

Border shall be 1 1/4" wide with aerodynamically shaped deflector blades on 2/3" centers. Deflector blades shall be individually adjustable. Blades shall pivot in friction mounting retainers. Retainers shall hold the deflector blade position throughout the specified operating range of the device.  

Metal friction wires are not acceptable.

Heavy Duty Double Deflection Supply Grilles
HDSG42-1 – Surface Mount
HDSG42-6 – T-bar Lay-In

Air Outlets shall be model HDSG42 manufactured by GREENHECK. Units shall be double deflection supply grilles of aluminum (AL) or steel (S) construction with vertical (V) or horizontal (H) front blades and a rear sets of deflection blades. Unit material shall be equivalent to 14-gauge deflector blades and 16-gauge borders.

The units shall be the size and quantity as outlined in the plans and specifications.

Border shall be 1 1/4" wide with aerodynamically shaped deflector blades on 2/3" centers. Deflector blades shall be individually adjustable. The units shall be the size and quantity as outlined in the plans and specifications. Blades shall pivot in friction mounting retainers. Retainers shall hold the deflector blade position throughout the specified operating range of the device.  

Metal friction wires are not acceptable.

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 extruded aluminum (model OBDE) 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.