M9220-GGx-3 Proportional Electric Spring Return Actuators Installation Instructions
6
To change the position of the coupler, see Figure 4 and
proceed as follows:
1.
Mount the coupler on either Side A or Side B of the
actuator, as determined by the shaft length.
2.
Snap the locking clip securely into the coupler
retention groove to retain the coupler.
Manual Override
Use only the supplied manual override crank to
reposition the actuator hub when using the manual
override feature.
To reposition the actuator hub, proceed as follows:
1.
De-energize the actuator.
2.
Insert the hex end of the manual override crank
into the manual override adjustment point on the
face of the actuator.
3.
Rotate the manual override crank in the direction
indicated by the arrow on the label.
Note:
The actuator requires 27 rotations of the
manual override crank from the fully spring return
position to fully reposition the actuator hub. At the
end of travel, the rotational resistance increases;
do not force the actuator hub past this point.
4.
Rotate the manual override crank a half turn in the
opposite direction to lock the actuator hub in place.
Note:
To unlock the actuator hub, rotate the
manual override crank in the direction indicated by
the arrow on the label. The actuator hub
automatically unlocks when power is applied to the
actuator, and returns the actuator to normal drive
and spring return operation.
Mounting the Actuator
To mount the actuator, proceed as follows:
1.
See the dimensions in Figure 5 and Table 2 to
ensure the correct positioning of the anti-rotation
bracket.
2.
Bend or cut the anti-rotation bracket to fit the
damper frame or duct as illustrated in Figure 6.
IMPORTANT:
Applying excessive torque to the
manual override or running the manual override with
a power tool may damage the internal components
of the actuator and cause premature failure.
Table 2: Dimensions from Anti-rotation Bracket to
Shaft Center
Shaft Diameter
Dimension A,
in. (mm)
Dimension B,
in. (mm)
1/2 to 9/16 in.
(12 to 14 mm)
8-9/32
(210)
7
(178)
5/8 to 3/4 in.
(16 to 19 mm)
8-5/32
(207)
6-29/32
(175)
IMPORTANT:
The tab on the anti-rotation bracket
must fit midpoint in the actuator slot. Positioning the
tab midpoint in the slot prevents actuator binding
and premature wear, and makes actuator removal
easier.
Figure 5: Positioning the Anti-Rotation Bracket
A
Dimension
B
A
F
IG
:br
po
s
Dimension
A