Greenheck 331-4551, 332-4551 - Siemens 3 Actuator (454201) - Manual (Page 2)

Crankarm Orientation and Actuator Assembly
Location for Counter Clockwise Fail Rotation
Actuator Assembly is fastened to the mounting
plate through one of these holes
Crankarm Orientation and Actuator Assembly
Location for Clockwise Fail Rotation
B
B
90°
90°
1.938
1.938
Instructions:
These installation instructions assume the damper is already
mounted in a duct or sleeve with the damper shaft extending
beyond the duct or sleeve 6 inches.
1. Install the stand off bracket.
Dampers with a jackshaft
1a. Mount the stand off bracket onto the jackshaft
bracket with (4) 1 /
4
-20 X 1 /
2 in
. thread cutting screws, #16.
Orient the anchor bracket perpendicular to the damper on
the duct or sleeve so that the bracket's shaft hole is
centered on the jackshaft.
Dampers without a jackshaft (Shaft Extension)
1b. Mount the stand off bracket spanning across the damper
frame flanges. Orient the anchor bracket perpendicular to
the damper on the duct or sleeve so that the bracket's
shaft hole is centered on the shaft extension. Fasten to
the damper frame with (4) #14 Tek screws or equal,
supplied by others. Be sure not to run the screws into the
damper linkage, which is between the flanges.
2. Mount the actuator and all factory assembled actuator
parts to the mounting bracket (#13) with the (2) 5 /
16 in.
-18
hex nuts supplied on the actuator assembly. Attach the
assembly to the bracket using the post (#3) through the
hole illustrated to the right on the diagram that
corresponds to the correct fail direction.
Note: All fail rotations refer to the damper shaft rotation
needed to achieve the desire blade fail position. Inspect
the damper blades and the damper shaft to determine the
proper damper shaft rotation for the desired blade fail
position.
3. Mount the mounting bracket to the stand off bracket
using (4) 1 /
4 in.
-20 x 1 /
2 in.
bolts, #11, and (4) 1 /
4 in.
- 20
Spinlock nuts, #12, included with this kit. Use the outer
four holes of the mounting bracket for jackshafted models
and the inner four holes for directly driven models.
Note: The mounting bracket may be attached in three
positions: parallel with the duct, perpendicular up from the
duct, or perpendicular down from the duct. Choose a
position that offers the most clearance for the application.
4. Note the damper shaft rotation for fail direction and
position the crankarm in one of the positions shown in the
illustrations to the right. Do not tighten the crankarm to
the damper shaft.
5. Attach the crankarm to the clevis on the actuator with the
clevis pin, #9, and the hitchpin cotter, #10, through the
hole labled “B” to the right. Position the damper blades in
the desired fail position (open or closed). Tighten the
crankarm to the damper shaft.
Orientation of Stand Off
Bracket for a directly
driven damper
Orientation of Stand Off
Bracket for a jackshaft
driven damper
Copyright © 2006 Greenheck Fan Corporation
454201 Siemens #3 Rev. 4 October 2006
SIEMENS #3 INSTRUcTIoNS
6. Run the supply pressure to the actuator and regulate
it to a maximum of 25 psi.
7. Apply air pressure to the actuator.
The damper blades should fully open or close
and return to the fail position when power is
disconnected, if they do not, adjustments can
be made by resetting the crankarm position on
the damper or actuator shaft or by changing the
distance from the actuator face to the center of the
hole in the clevis.