Ceilin
Ceiling Radiation Damper
GBR-CRD
Non-Combustible Ceiling Installation Instructions
Fan Assembly
Fire Rated Ceiling
Steel Hanger Wire
(12 SWG Min)
Damper Flange and
Fan Flange - Aligned
Damper Assembly
Figure 1
For fan models: VFB050C4L1, VFB050C4A1, VFB080C4L1, VFB080C4A1, GBR50L,
GBR50, GBR80L, GBR80LED, GBR80, GBR80H, GBR80HL, GBR80MHL,
GBR80MHLED, GBR80HLED, GBR100L, GBR100H, GBR100HL, GBR100MHL,
GBR100, GBR100LED, GBR100HLED, ELT80-110, ELT80-110LED, ELT80-110D,
ELT80-110DLED, ELT80-110H, ELT80-110HLED, ELT80-110MH, ELT80-110MHLED.
1. Install the radiation damper onto the inlet side of the fan so that the holes in the sleeve align
with mounting holes on the fan using either the four #12 screws provided with the damper
assembly (for general installation) or the four #10 machine screws and nuts (for project pack
installation). The mounting flange of the fan should be aligned with the mounting flange of
the damper assembly (refer to Figure 2).
2. For a damper used with a fan equipped with a grill light, route the wire from the grille
through the notch on the damper frame. Use the supplied bracket to secure the wire to the
damper frame. Attach the bracket to the frame using one of the supplied #8 screws.
3. If the damper is to be used with a fan not equipped with a lighted grille, attach the same
bracket mentioned in step 2 to the frame in the same manner. Ensure that the bracket covers
the notch in the frame.
4. Once the damper assembly is secured to the fan, turn it over so that the damper is at the
bottom. The fan can now be installed by two methods. The first is by utilizing vertical
hangar wires, minimum 12 SWG (2.7), attached to the damper sleeve (require one per side).
The second is to use the suspension bracket assembly provided by the fan manufacturer.
Information is subject to change without notice or obligation. M-53432 Rev. B
Notes: Dimensions donated by ( ) are in millimeters.
Ceilin
Ceiling Radiation Damper
GBR-CRD
Non-Combustible Ceiling Installation Instructions
5. The penetration in the ceiling should be located within the ceiling tiles or panels without
necessitating cuts in the ceiling suspension main runners or cross tees. If a cut is needed, a
maximum of one runner or cross tee may be cut to enable proper damper location and
installation. Each cut end shall be supported by a min 12 SWG (2.7) vertical hanger wire.
The opening in the ceiling should be the same size as the outside of the damper frame.
6. Position the damper and fan assembly such that the bottom edge of the damper is flush with
the finished surface of the ceiling. Attach the damper and fan assembly to the structure
above or adjacent to it. If the damper and fan are being attached to the assembly above, a
minimum of 12 SWG (2.7) hangar wire must be used. A minimum of four hanger wires are
required, with no two on the same side. The hanger wires can be attached either to the
damper sleeve using the holes provided or the fan housing as specified in the fan installation
instructions.
7. For other installation details see the Delta Breez Green Builder Installation Instructions.
Information is subject to change without notice or obligation. M-53432 Rev. B
Notes: Dimensions donated by ( ) are in millimeters.
Figure 2
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