Johnson Controls DMPR-KC050 Crankarm This model is an automatic

This model is an automatic reset limit control

but the technical specifications and components remain identical

" If the plastic has become brittle or shows signs of leakage near the base

or if you measure an open circuit across the limit terminals while the plenum is cool

Johnson Controls DMPR-KC050 Crankarm This model is an automaticThe Johnson Controls DMPR KC050 Crankarm is a heavy duty linkage component engineered for demanding HVAC damper applications. Designed to fit a 7 16" diameter shaft, this crankarm provides the mechanical leverage required to translate actuator rotation into precise damper blade movement. The integrated adjustable radius, ranging from 1 inch to 2 3 4 inches, allows technicians to fine tune the stroke and torque delivery, ensuring optimal seal