Halton M.A.R.V.E.L. Operator's Manual page 21

Balancing Damper Actuator Removal/Replacement
To remove and replace the actuator on the balancing damper, follow these steps:
1. Remove exterior metal cover by removing the 6 mounting screws around the
perimeter.
2. Remove the actuator cover by removing the 1 screw on the side.
3. Disconnect the power to the actuator.
4. Record the DIP switch values, located in the red holder on the bottom of the actuator.
Record DIP Switch settings
5. Note the position of the stop screws.
6. Remove the U-bolt that attaches the actuator to the balancing damper shaft. Refer to
the Actuator Specifi cation and Installation instructions with the replacement part.
M.A.R.V.E.L. Installation Operation & Maintenance Manual
Stop screws
21
U-bolt on shaft