Johnson Controls M9203-B Series Installation Manual page 4

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.
M9203-Bxx-2(Z) Series On/Off Electric Spring Return Actuators Installation Guide
30 30
10
50 50
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90 90
Figure 2: Actuator Side A
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10
70
90
Figure 3: Actuator Side B
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