TRUFIG HVAC GRG 12 Inch Linear Diffuser
FRAMING AND PREPARATION
Rough Opening Framing
GRG diffusers are created for installation in both ceilings and walls. It is required that the contractor create a rough opening in which to install the diffuser. Use the below chart to find the appropriate rough opening dimensions for each diffuser.
ROUGH OPENING DIMENSIONS
| DIM | 7” x 4” | 12” x 2” | 24” x 1.625” | 36” x 1.625” | 48” x 1.625” |
| WIDTH | 14” | 14.5” | 28.75” | 40.75” | 52.75” |
| HEIGHT | 14” | 6.5” | 10.5” | 10.5” | 10.5” |
Plenum Box Construction and Attachment
GRG diffusers are created to work with a plenum box. Plenum boxes are the inlet and outlet boxes that serve as a transition between the TRUFIG GRG diffuser and the rest of the HVAC duct work. Below are the recommended dimensions for a plenum box to attach to the TRUFIG diffuser.
PLENUM BOX DIMENSIONS
| DIM | 7” x 4” | 12” x 2” | 24” x 1.625” | 36” x 1.625” | 48” x 1.625” |
| A | >11.5” (292mm) | 6.5” (165mm) | 10.5” (267mm) | 10.5” (267mm) | 10.5” (267mm) |
| B | 9.25” (235mm) | 5.25” (133mm) | 5.5” (140mm) | 5.5” (140mm) | 5.5” (140mm) |
| C | 14” (356mm) | 14.5” (368mm) | 28.75” (730mm) | 40.75” (1035mm) | 52.75” (1035mm) |
| D | 12.75” (324mm) | 12.5” (317mm) | 24.875” (632mm) | 36.875” (937mm) | 48.875” (937mm) |
| E | >3.25” (83mm) | >3.25” (89mm) | >3.5” (89mm) | >3.5” (89mm) | >3.5” (89mm) |
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For technical support call (949) 492-7777 or visit www.trufig.com/products/linear-diffuser
Customer Service
©2021 Sonance. All rights reserved. TRUFIG is a registered trademarks of Dana Innovations. Due to continuous product improvement, all features and specifications are subject to change without notice. For the latest TRUFIG product specification information visit our website: www.trufig.com
SONANCE •
991 Calle Amanecer •
San Clemente, CA 92673 USA
PHONE: (949) 492-7777 •
FAX: (949) 361-5151 •
Technical Support: (949) 492-7777 •
www.sonance.com
12.10.2021
Sonance
TRUFIG
