Greenheck Mounting Kit for Actuators used on Control Dampers (479869) - Manual (Page 4)

PART NO. 872908: EXTERNAL MOUNT JACKSHAFTED
4
Instructions
1. Have damper in desired fail position.
2. Jackshaft supplied is 1 in. (25mm) diameter or 1/2 in.
(13mm) diameter. Mount the stand-off bracket (item #3)
with thread cutting screws (item #5). Orient the stand-
off bracket (item #3) so the hole is centered on the
jackshaft.
3. Fasten the actuator bracket (item #4) to the standoff
bracket using thread cutting screws (item 5). Use outer
four holes of the actuator bracket.
5. Install shoulder bolt (item #6 or 7) to the anti-rotation
bracket (item #3) using nut (item #8 or 9). Bolt location
will vary depending on the actuator model.
4. For fail close, position the blades in the closed
position and the actuator in its fail position. For fail
open, position the blades in the open position and the
actuator in its fail position. Tighten the actuator clamp
to the jackshaft (item #1).
5. Attach actuator to anti-rotation bracket assembly
(item #4). Tighten the actuator onto the shaft (item #1).
6. Connect all electrical leads to the actuator. Apply
power to the actuator. The damper blades should
rotate to the power position and return to the fail
position when power is disconnected.
479869• Mounting Kits for Actuators Rev. 1, January 2015 Copyright 2015 © Greenheck Fan Corporation
As a result of our commitment to continuous improvement, Greenheck reserves the right to change
specifications without notice.
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