Greenheck RG Series Return Grilles
Fixed 45 Degree Blade Design
The Greenheck RG Series offers return grilles with fixed horizontal 45-degree blades, designed for efficient air distribution. These grilles are available in various configurations to suit different installation requirements.
Frame Details
- Available in Aluminum or Steel frames.
Product Features
- Fixed horizontal 45 degree blades.
- Roll-formed aluminum blades are standard (RG-AL).
- Extruded aluminum blades are available (RG-E).
- Steel construction is available (RG-S).
- Offered in a variety of border styles for diverse applications.
- Features 0.66 inch blade spacing.
- Removable and hinged cores are available for maintenance access.
- The largest single section size is 48x48 inches.
- Oversized units are constructed in multiple sections joined by mullion strips.
Finishes
- 01 - White: Suitable for a primer coat if field painting is required.
- 02 - Satin Silver
- 03 - Black
- 24 - Mill
- 28 - Custom Color
Product Pressure Drop Performance
The performance of the Fixed Blade Return Grille is characterized by its pressure drop. A graphical representation shows the relationship between Neck Velocity (measured in feet per minute, fpm) on the horizontal axis and Static Pressure (measured in inches of water gauge, in.w.g.) on the vertical axis.
Optional Accessories
- OBD - Steel Opposed Blade Damper
- OBDA - Aluminum Opposed Blade Damper
- L9 - Equalizing Grid (Square / Rectangular)
- G3 - Equalizing Grid (Round)
- PF - Sidewall Plaster Frame
- TBPF - T-Bar Plaster Frame
- LIPF - Lay-In Plaster Frame
- TR - Square to Round Transition
- TR-Deep - Deep Transition
Specific Model Configurations
Model: RG-1 - Surface Mount
Type: Return Grilles, Fixed 45 Degree Blade - Surface Mount
Dimensions:
- Duct Size = Listed Size
- Neck Size = Listed Size - 3/8 inch
- Overall Face = Listed Size + A
Material A for Overall Face Calculation:
- Aluminum: 1 3/4 inches
- Steel: 2 1/8 inches
Blade Details: 0.666 inch Horizontal Deflection Blades
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-6 - T-Bar Lay-In
Type: Return Grilles, Fixed 45 Degree Blade - T-Bar Lay-In
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 3/8 inch
- Overall Face = T-Bar Module - 1/4 inch
Blade Details: 0.666 inch Horizontal Deflection Blades
T-Bar Module Table:
| T-Bar Module | Overall Face Calculation |
|---|---|
| 12x12 | Module - 1/4 inch |
| 24x12 | Module - 1/4 inch |
| 24x24 | Module - 1/4 inch |
| 48x24 | Module - 1/4 inch |
| 48x48 | Module - 1/4 inch |
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-8 - Tegular Module
Type: Return Grilles, Fixed 45 Degree Blade - Tegular Module
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 3/8 inch
- Overall Face = T-Bar Module - 1/4 inch
Blade Details: 0.666 inch Horizontal Deflection Blades
T-Bar Module Table:
| T-Bar Module | Overall Face Calculation |
|---|---|
| 12x12 | Module - 1/4 inch |
| 24x12 | Module - 1/4 inch |
| 24x24 | Module - 1/4 inch |
Panel Sizes: 12x12, 24x12 & 24x24
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-9 - Bolt Slot / Donn Fineline
Type: Return Grilles, Fixed 45 Degree Blade - Bolt Slot / Donn Fineline
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 3/8 inch
- Overall Face = T-Bar Module - 1/4 inch
Blade Details: 0.666 inch Horizontal Deflecting Blades
T-Bar Module Table:
| T-Bar Module | Overall Face Calculation |
|---|---|
| 12x12 | Module - 1/4 inch |
| 24x12 | Module - 1/4 inch |
| 24x24 | Module - 1/4 inch |
Panel Sizes: 12x12, 24x12 & 24x24
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-H-1 - Hinged Core, Surface Mount
Type: Return Grilles - Hinged Core, Fixed 45 Degree Blade - Surface Mount
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 1 7/8 inches
- Overall Face = Listed Size + A
Material A for Overall Face Calculation:
- Aluminum: 2 1/4 inches
- Steel: 2 1/8 inches
Blade Details: 5/32 inch 0.666 Horizontal Deflecting Blades
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-H-6 - Hinged Core, T-Bar Lay-In
Type: Return Grilles - Hinged Core, Fixed 45 Degree Blade - Lay in T-Bar
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 1 7/8 inches
- Overall Face = T-Bar Module - 1/4 inch
Blade Details: 0.666 Horizontal Deflecting Blades
T-Bar Module Table:
| T-Bar Module | Overall Face Calculation |
|---|---|
| 12x12 | Module - 1/4 inch |
| 24x12 | Module - 1/4 inch |
| 24x24 | Module - 1/4 inch |
| 48x24 | Module - 1/4 inch |
| 48x48 | Module - 1/4 inch |
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-RC-1 - Removable Core, Surface Mount
Type: Return Grilles - Removable Core, Fixed 45 Degree Blade - Surface Mount
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 1 7/8 inches
- Overall Face = Listed Size + A
Material A for Overall Face Calculation:
- Aluminum: 2 1/4 inches
- Steel: 2 1/8 inches
Blade Details: 5/32 inch 0.666 Horizontal Deflecting Blades
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
Model: RG-RC-6 - Removable Core, T-Bar Lay-In
Type: Return Grilles - Removable Core, Fixed 45 Degree Blade - T-Bar Lay-In
Dimensions:
- Listed Size = Duct Size
- Neck Size = Listed Size - 1 7/8 inches
- Overall Face = T-Bar Module - 1/4 inch
Blade Details: 0.666 Horizontal Deflecting Blades
T-Bar Module Table:
| T-Bar Module | Overall Face Calculation |
|---|---|
| 12x12 | Module - 1/4 inch |
| 24x12 | Module - 1/4 inch |
| 24x24 | Module - 1/4 inch |
| 48x24 | Module - 1/4 inch |
| 48x48 | Module - 1/4 inch |
Compliance: This product complies with NFPA 90A-18 standard 4.3.7.3.2 and 4.3.8.3.2. It is constructed with openings through which a 1/2 inch sphere cannot pass.
