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Damper
blade
Wire tie
Figure 1
Installation Instructions
Figure 1
Round, RBDR series, dampers are supplied from the factory with the actuator installed, see Figure 1.
Square/rectangular, RBD series, dampers are supplied with an actuator kit that must be field installed as follows:
1) Install the RBD series damper into the ductwork with the lanced end of the blade positioned to the side of the duct
where the actuator is to be located (see Figure 2).
2) Drill a minimum
⁄
in. (14mm) diameter hole that lines up with the center pivot of the damper blade
9
16
3) Insert the pointed end of the pin through the hole and into the blade lances. Pound pin into the blade lances until
the end of hte pin is
⁄
1
2
4) With the blade closed, install the actuator by aligning the coupler over the end of the square pin (as shown in
Figure 2) and sliding the actuator assembly onto the pin until the bracket is in contact with the duct surface.
5) Check the blade clearance to be sure that the blade can move side to side in the frame and it is not pressed
against the opposite side of the damper frame. If the blade is pressed against the opposite side, the pin may need
to be pounded a little further into the blade.
6) Connect a Greenheck EZ Balance control device to the actuator. While holding the actuator assembly against the
duct, press and hold the "Close" button until the "full closed" light flashes.
7) Rotate the actuator assembly to hold the blade closed then secure the actuator to the duct using the two supplied
screws.
8) Recheck the blade clearance and damper operation by cycling the actuator.
9) All wire connections from the wall or ceiling jack to the damper actuator must be secured to the building structure
in such a way as to prevent strain on the wire connections (for example: use wire ties to secure a wire loop at
each connection and intermittently between the connections).
10) The actuator mounting bracket has a factory installed wire tie for the purpose of providing strain relief at the
actuator. Thread the wire through the wire tie, loop around and back through the wire tie before connecting to the
actuator box. Tighten the wire tie leaving a short loop at the actuator.
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
2
473325 • RBD & RBDR Series, Rev. 9, September 2023
Damper
frame/sleeve
Wire
Standoff
bracket
Actuator
in. (13mm) outside of the duct surface whilc the blade is centered in the damper frame.
Damper
Damper
Blade
Blade
Lances
Figure 2
Copyright © 2023 Greenheck Fan Corporation
Duct
Wire
Tie
Wire
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