While the rod provides the mechanical link

You must always match the temperature ratings (L120-20) of the existing bimetal limit switch to ensure the furnace operates within its designed safety parameters

covering most HVACR applications

With electronic stall detection and a manual gear release

verify that your thermocouple is fully seated and generating at least 25mV under load

Johnson Controls VG7241RT+3008B Valve Assembly THPU32HP7Y While the rod provides theThe Johnson Controls VG7241RT+3008B is a heavy duty 2 way normally open pneumatic valve assembly designed for precise flow control in commercial HVACR systems. Built with a 1 1 2 inch NPT connection and a robust cast bronze body featuring brass trim, this unit is engineered for longevity in demanding hydronic applications. The assembly utilizes a 28. 9 Cv equal percentage flow characteristic, ensuring stable modulation and linear heat transfer across