KMC Controls MCP-1140 Series - Manual

Installation Guide
4” Pneumatic Damper Actuator
MCP-1040, 1140 Series
Mounting
Post Mounted - Typically used for internal duct mounting.
1. Position the damper for its “normal” position.
2. Connect the damper’s blade clip or drive arm with the clevis pin and cotter pin.
3. Mount the offset bracket to either the damper frame or the duct.
4. Check that the linkage will not bind as the shaft extends and retracts.
Right Angle Mounted - Typically used for external duct mounting.
1. Slide the crankarm over the damper shaft.
2. Determine whether the damper shaft must rotate Clockwise (CW) or Counter Clockwise (CCW.
3. Locate the half-circle cutouts on the outside corners of the bracket.
4. Place the appropriate half circle cutout over (for clockwise rotation), or under (for counter clockwise
rotation) the damper shaft.)
5. Loosely mount the actuator externally on the duct or air handling unit.
6. Leave sufficient room for adjusting and servicing the unit.
7. Position the damper for its “normal” position.
8. Tighten the crankarm set screws.
9. Check that the linkage will not bind as the shaft extends and retracts.
10. Firmly anchor the bracket to the duct. The actuator assembly is positioned for 90° rotation.