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6. Manually operate the blades to check for binding or
interference.
7. Check that the volume controller lift wires do not
interfere with the frame of the damper.
8. Adjust the volume controller to the desired open
position.
®
Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
2
481550 Volume Controller for CRD Series IOM Rev. 1 April 2016
Figure 5: Volume controller
Figure 6: Volume controller top view
Copyright 2016 © Greenheck Fan Corporation
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