Installation Instructions

Document No. 540-1035
Installation Instructions
June 10, 2015
Siemens Industry, Inc. 3 of 6
 remove the 1/2-inch shaft guide and proceed
to Step 2.
- If the damper shaft is 3/8 inch,
 remove the 1/2-inch shaft guide.
 Use the 3/8-inch adapter, provided in the
actuator packaging. Hold the shaft insert so that
the raised tabs are inserted last when placing
the insert into the back of the actuator. Proceed
to Step 2.
2. Determine the damper blade rotation, clockwise
or counterclockwise to open.
 If the blades will rotate counterclockwise, slide
the manual override switch to manual, and move
the adjustment lever to the right. Return the
switch to automatic.
 If the blades will rotate clockwise, slide the
manual override switch to manual, and move the
adjustment lever to the left. Return the switch to
automatic.
3. Close the damper blades.