Install Instructions

M9208-GGx-x Series Proportional Electric Spring Return Actuators Installation Instructions4
Mounting
The M9208-GGx-x Series Proportional Electric Spring
Return Actuators can be easily installed on dampers
with round shafts from 5/16 to 5/8 in. (8 to 16 mm) or
square shafts from 1/4to1/2in.(6to12mm) using the
standard shaft coupler included with the actuator. An
optional M9208-600 Large Shaft Coupler Kit adapts to
larger shaft sizes; see Table 1 for more details. If the
damper shaft extends less than 3.31 in. (84 mm), see
the Removable Coupler section for further instructions.
If the damper shaft extends less than 0.79 in. (20 mm),
install a shaft extension recommended by the damper
manufacturer.
Counterclockwise (CCW) Spring Return
Direction – Clockwise (CW) Powered
Operation
For CCW spring return direction, mount the actuator to
the damper shaft so that Side A of the actuator is away
from the damper as illustrated in Figure 2. With power
applied, the actuator drives CW from the 0° position
and spring returns CCW.
Clockwise (CW) Spring Return Direction –
Counterclockwise (CCW) Powered Operation
For CW spring return direction, mount the actuator to
the damper shaft so that Side B of the actuator is away
from the damper as illustrated in Figure 3. With power
applied, the actuator drives CCW from the 0° position
and spring returns CW.
Removable Coupler
If the damper shaft extends less than 3.31 in. (84 mm),
mount the coupler on the face of the actuator closest to
the damper.
If the damper shaft extends less than 0.79 in. (20 mm),
a shaft extension is required to mount the actuator.
To change the coupler’s position, 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.
Figure 2: Actuator Side A
FIG:M9208_GGX_Side_A
8
.
5
x
2-10
0-100-10
2-10
+
CAL
DA RA
+
Figure 3: Actuator Side B
FIG:M0208_GGx_Side_B
90
8
.
5
x
2-10
0-100-10
2-10
+
CAL
DA
+
RA
Figure 4: Changing the Coupler Position
FIG:Chng_ PosnCplr_