Carrier LA01RA323 Fan Blade 318973-401 this economizer damper gear provides

this economizer damper gear provides superior mechanical leverage compared to plastic alternatives

Using this in a horizontal application will lead to immediate overflow and unit failure

this actuator is typically sized for dampers up to approximately 11 square feet

While the nominal dimensions are similar

Is the Allanson 421-BT387 rated for constant duty

Carrier LA01RA323 Fan Blade 318973-401 this economizer damper gear providesThe Carrier LA01RA323 Fan Blade is a precision engineered condenser fan blade designed for critical cooling applications in Carrier, Bryant, and Payne outdoor units. This specific HVAC replacement fan blade features a 22 inch diameter and a 3 blade configuration with a 23 degree pitch, optimized for maximum CFM output while maintaining structural integrity under high static pressure. Engineered with a standard 1 2 inch bore, it ensures a seamless fit